annotate Small_CPU/Src/compass.c @ 541:6fbf7cd391cb

Added default view selection and auto return to view to t3 visualization: In previous version the ostc tried to applied the t7 default view selection to t3 view. As t3 has different views than t3, a new selection menu has been added to the custom view menu enabling the selection of the big font default view. In parallel the auto return function has been adapted to use the new parameter.
author Ideenmodellierer
date Sat, 10 Oct 2020 18:34:10 +0200
parents d9dbfa496f7e
children 573a2bc796c8
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1 /**
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2 ******************************************************************************
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3 * @file compass.c
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4 * @author heinrichs weikamp gmbh
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5 * @date 27-March-2014
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6 * @version V0.2.0
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7 * @since 21-April-2016
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8 * @brief for Honeywell Compass and ST LSM303D
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9 *
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10 @verbatim
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11 ==============================================================================
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12 ##### How to use #####
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13 ==============================================================================
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14 V0.1.0 09-March-2016
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15 V0.2.0 21-April-2016 Orientation fixed for LSM303D,
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16 roll and pitch added to calibration output,
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17 orientation double checked with datasheets and layout
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18 as well as with value output during calibration
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19 V0.2.1 19-May-2016 New date rate config and full-scale selection
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20
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21 @endverbatim
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22 ******************************************************************************
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23 * @attention
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24 *
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25 * <h2><center>&copy; COPYRIGHT(c) 2016 heinrichs weikamp</center></h2>
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26 *
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27 ******************************************************************************
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28 */
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29
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30 #include <math.h>
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31 #include <string.h>
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32
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33 #include "compass.h"
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34 #include "compass_LSM303D.h"
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35
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36 #include "i2c.h"
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f9b17e898a7a Resolved some minor warnings
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37 #include "spi.h"
38
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38 #include "RTE_FlashAccess.h" // to store compass_calib_data
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39
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40 #include "stm32f4xx_hal.h"
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41
410
f9458e979154 Bugfix display compass calibration frozen:
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42 extern uint32_t time_elapsed_ms(uint32_t ticksstart,uint32_t ticksnow);
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43
38
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44 /// split byte to bits
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45 typedef struct{
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46 uint8_t bit0:1; ///< split byte to bits
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47 uint8_t bit1:1; ///< split byte to bits
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48 uint8_t bit2:1; ///< split byte to bits
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49 uint8_t bit3:1; ///< split byte to bits
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50 uint8_t bit4:1; ///< split byte to bits
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51 uint8_t bit5:1; ///< split byte to bits
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52 uint8_t bit6:1; ///< split byte to bits
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53 uint8_t bit7:1; ///< split byte to bits
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54 } ubit8_t;
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55
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56
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57 /// split byte to bits
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58 typedef union{
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59 ubit8_t ub; ///< split byte to bits
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60 uint8_t uw; ///< split byte to bits
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61 } bit8_Type;
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62
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63
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64 /// split word to 2 bytes
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65 typedef struct{
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66 uint8_t low; ///< split word to 2 bytes
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67 uint8_t hi; ///< split word to 2 bytes
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68 } two_byte;
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70
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71 /// split word to 2 bytes
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72 typedef union{
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73 two_byte Byte; ///< split word to 2 bytes
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74 uint16_t Word; ///< split word to 2 bytes
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75 } tword;
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76
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77
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78 /// split signed word to 2 bytes
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79 typedef union{
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80 two_byte Byte; ///< split signed word to 2 bytes
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81 int16_t Word; ///< split signed word to 2 bytes
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82 } signed_tword;
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83
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84
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85 /// split full32 to 2 words
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86 typedef struct{
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87 uint16_t low16; ///< split word to 2 bytes
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88 uint16_t hi16; ///< split word to 2 bytes
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89 } two_word;
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90
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91 typedef union{
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92 two_word Word16; ///< split word to 2 bytes
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93 uint32_t Full32; ///< split word to 2 bytes
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94 } tfull32;
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95
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96
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97 /// crazy compass calibration stuff
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98 typedef struct
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99 {
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100 unsigned short int compass_N;
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101 float Su, Sv, Sw;
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102 float Suu, Svv, Sww, Suv, Suw, Svw;
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103 float Suuu, Svvv, Swww;
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104 float Suuv, Suuw, Svvu, Svvw, Swwu, Swwv;
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105 } SCompassCalib;
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106
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107
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108 #define Q_PI (18000)
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109 #define Q_PIO2 (9000)
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110
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111
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112
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113 //////////////////////////////////////////////////////////////////////////////
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114 // fifth order of polynomial approximation of atan(), giving 0.05 deg max error
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115 //
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116 #define K1 (5701) // Needs K1/2**16
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117 #define K2 (1645) // Needs K2/2**48 WAS NEGATIV
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118 #define K3 ( 446) // Needs K3/2**80
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119
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120 const float PI = 3.14159265; ///< pi, used in compass_calc()
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121
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122 typedef short int Int16;
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123 typedef signed char Int8;
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124 typedef Int16 Angle;
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125
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126
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127 /// The (filtered) components of the magnetometer sensor
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128 int16_t compass_DX_f; ///< output from sensor
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129 int16_t compass_DY_f; ///< output from sensor
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130 int16_t compass_DZ_f; ///< output from sensor
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131
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132
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133 /// Found soft-iron calibration values, deduced from already filtered values
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134 int16_t compass_CX_f; ///< calibration value
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135 int16_t compass_CY_f; ///< calibration value
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136 int16_t compass_CZ_f; ///< calibration value
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137
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138
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139 /// The (filtered) components of the accelerometer sensor
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140 int16_t accel_DX_f; ///< output from sensor
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141 int16_t accel_DY_f; ///< output from sensor
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142 int16_t accel_DZ_f; ///< output from sensor
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143
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144
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145 /// The compass result values
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146 float compass_heading; ///< the final result calculated in compass_calc()
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147 float compass_roll; ///< the final result calculated in compass_calc()
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148 float compass_pitch; ///< the final result calculated in compass_calc()
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149
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150
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151 uint8_t compass_gain; ///< 7 on start, can be reduced during calibration
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152
357
c3d511365552 Add Support for new end-2019 hardware:
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153 uint8_t hardwareCompass = 0; ///< either HMC5883L (=1) or LSM303D (=2) or LSM303AGR (=3) or not defined yet (=0)
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154
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155 /// LSM303D variables
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156 uint8_t magDataBuffer[6]; ///< here raw data from LSM303D is stored, can be local
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157 uint8_t accDataBuffer[6]; ///< here raw data from LSM303D is stored, can be local
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158
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159
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160 // struct accel_scale _accel_scale;
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161 unsigned _accel_range_m_s2;
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162 float _accel_range_scale;
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163 unsigned _accel_samplerate;
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164 unsigned _accel_onchip_filter_bandwith;
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165
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166 // struct mag_scale _mag_scale;
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167 unsigned _mag_range_ga;
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168 float _mag_range_scale;
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169 unsigned _mag_samplerate;
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170
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171 // default scale factors
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172 float _accel_scale_x_offset = 0.0f;
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173 float _accel_scale_x_scale = 1.0f;
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174 float _accel_scale_y_offset = 0.0f;
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175 float _accel_scale_y_scale = 1.0f;
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176 float _accel_scale_z_offset = 0.0f;
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177 float _accel_scale_z_scale = 1.0f;
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178
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179 float _mag_scale_x_offset = 0.0f;
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180 float _mag_scale_x_scale = 1.0f;
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181 float _mag_scale_y_offset = 0.0f;
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182 float _mag_scale_y_scale = 1.0f;
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183 float _mag_scale_z_offset = 0.0f;
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184 float _mag_scale_z_scale = 1.0f;
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185
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186
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187 /* External function prototypes ----------------------------------------------*/
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188
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189 extern void copyCompassDataDuringCalibration(int16_t dx, int16_t dy, int16_t dz);
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190
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191 /* Private function prototypes -----------------------------------------------*/
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192
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193 void compass_reset_calibration(SCompassCalib *g);
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194 void compass_add_calibration(SCompassCalib *g);
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195 void compass_solve_calibration(SCompassCalib *g);
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196
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197 void compass_init_HMC5883L(uint8_t fast, uint8_t gain);
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198 void compass_sleep_HMC5883L(void);
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199 void compass_read_HMC5883L(void);
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200
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201 void accelerator_init_MMA8452Q(void);
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202 void accelerator_sleep_MMA8452Q(void);
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203 void acceleration_read_MMA8452Q(void);
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204
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205 void compass_init_LSM303D(uint8_t fast, uint8_t gain);
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206 void compass_sleep_LSM303D(void);
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207 void compass_read_LSM303D(void);
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208 void acceleration_read_LSM303D(void);
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209
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210 void compass_init_LSM303AGR(uint8_t fast, uint8_t gain);
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211 void compass_sleep_LSM303AGR(void);
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212 void compass_read_LSM303AGR(void);
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213 void acceleration_read_LSM303AGR(void);
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214
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215 int LSM303D_accel_set_onchip_lowpass_filter_bandwidth(unsigned bandwidth);
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216 int compass_calib_common(void);
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217
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218 void compass_calc_roll_pitch_only(void);
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219
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220 void rotate_mag_3f(float *x, float *y, float *z);
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221 void rotate_accel_3f(float *x, float *y, float *z);
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222
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223
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224 /* Exported functions --------------------------------------------------------*/
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225
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226
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227 // ===============================================================================
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228 // compass_init
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229 /// @brief This might be called several times with different gain values during calibration
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230 /// On first call it figures out which hardware is integrated
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231 ///
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232 /// @param gain: 7 is max gain, compass_calib() might reduce it
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233 // ===============================================================================
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234
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235 void compass_init(uint8_t fast, uint8_t gain)
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236 {
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237
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238 // don't call again with fast, gain in calib mode etc.
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239 // if unknown
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240 if(hardwareCompass == COMPASS_NOT_RECOGNIZED)
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241 {
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242 return;
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243 }
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244
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245 // old code but without else
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246 if(hardwareCompass == 0)
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247 {
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248 uint8_t data = WHO_AM_I;
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249 I2C_Master_Transmit( DEVICE_COMPASS_303D, &data, 1);
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250 I2C_Master_Receive( DEVICE_COMPASS_303D, &data, 1);
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251 if(data == WHOIAM_VALUE_LSM303D)
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252 hardwareCompass = compass_generation2; //LSM303D;
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253 data = WHO_AM_I;
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254 I2C_Master_Transmit( DEVICE_ACCELARATOR_303AGR, &data, 1);
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255 I2C_Master_Receive( DEVICE_ACCELARATOR_303AGR, &data, 1);
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256 if(data == WHOIAM_VALUE_LSM303AGR)
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257 hardwareCompass = compass_generation3; //LSM303AGR;
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258 }
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259
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260 /* No compass identified => Retry */
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261 if(hardwareCompass == 0)
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262 {
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263 I2C_DeInit();
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264 HAL_Delay(100);
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265 MX_I2C1_Init();
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266 HAL_Delay(100);
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267 uint8_t data = WHO_AM_I;
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268 I2C_Master_Transmit( DEVICE_COMPASS_303D, &data, 1);
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269 I2C_Master_Receive( DEVICE_COMPASS_303D, &data, 1);
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270 if(data == WHOIAM_VALUE_LSM303D)
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271 hardwareCompass = compass_generation2; //LSM303D;
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272 data = WHO_AM_I;
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273 I2C_Master_Transmit( DEVICE_ACCELARATOR_303AGR, &data, 1);
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274 I2C_Master_Receive( DEVICE_ACCELARATOR_303AGR, &data, 1);
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275 if(data == WHOIAM_VALUE_LSM303AGR)
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276 hardwareCompass = compass_generation3; //LSM303AGR;
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277 }
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278
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279 /* Assume that a HMC5883L is equipped by default if detection still failed */
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280 if(hardwareCompass == 0)
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281 hardwareCompass = compass_generation1; //HMC5883L;
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282
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283 HAL_StatusTypeDef resultOfOperationHMC_MMA = HAL_TIMEOUT;
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284
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285 // test if both chips of the two-chip solution (gen 1) are present
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286 if(hardwareCompass == compass_generation1) // HMC5883L)
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287 {
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288 HAL_Delay(100);
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289 I2C_DeInit();
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290 HAL_Delay(100);
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291 MX_I2C1_Init();
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292 HAL_Delay(100);
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293 uint8_t data = 0x2A; // CTRL_REG1 of DEVICE_ACCELARATOR_MMA8452Q
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294 resultOfOperationHMC_MMA = I2C_Master_Transmit( DEVICE_ACCELARATOR_MMA8452Q, &data, 1);
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295 if(resultOfOperationHMC_MMA == HAL_OK)
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296 {
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297 hardwareCompass = compass_generation1; //HMC5883L; // all fine, keep it
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298 }
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299 else
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300 {
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301 hardwareCompass = COMPASS_NOT_RECOGNIZED;
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302 }
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303 }
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304
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305 if(hardwareCompass == compass_generation2) //LSM303D)
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306 compass_init_LSM303D(fast, gain);
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307 if(hardwareCompass == compass_generation3) //LSM303AGR)
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308 compass_init_LSM303AGR(fast, gain);
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309 if(hardwareCompass == compass_generation1) //HMC5883L)
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310 compass_init_HMC5883L(fast, gain);
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311
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312 tfull32 dataBlock[4];
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313 if(BFA_readLastDataBlock((uint32_t *)dataBlock) == BFA_OK)
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314 {
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315 compass_CX_f = dataBlock[0].Word16.low16;
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316 compass_CY_f = dataBlock[0].Word16.hi16;
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317 compass_CZ_f = dataBlock[1].Word16.low16;
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318 }
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319
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320 }
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321
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322
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323 // ===============================================================================
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324 // compass_calib
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325 /// @brief with onchip_lowpass_filter configuration for accelerometer of LSM303D
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326 // ===============================================================================
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327 int compass_calib(void)
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328 {
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329 if(hardwareCompass == compass_generation2) //LSM303D)
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330 {
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331 LSM303D_accel_set_onchip_lowpass_filter_bandwidth(773);
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332 int out = compass_calib_common();
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333 LSM303D_accel_set_onchip_lowpass_filter_bandwidth(LSM303D_ACCEL_DEFAULT_ONCHIP_FILTER_FREQ);
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334 return out;
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335 }
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336 else
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337 if(hardwareCompass == compass_generation1) //HMC5883L)
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338 {
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339 return compass_calib_common();
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340 }
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341 else
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342 if(hardwareCompass == compass_generation3) //LSM303AGR)
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343 {
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344 return compass_calib_common();
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345 }
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346 else
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347 {
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348 return 0; // standard answer of compass_calib_common();
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349 }
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350
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351
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352 }
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353
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354
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355 // ===============================================================================
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356 // compass_sleep
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357 /// @brief low power mode
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358 // ===============================================================================
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359 void compass_sleep(void)
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360 {
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361 if(hardwareCompass == compass_generation2) //LSM303D
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362 compass_sleep_LSM303D();
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363 if(hardwareCompass == compass_generation1) //HMC5883L
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364 compass_sleep_HMC5883L();
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365 if(hardwareCompass == compass_generation3) //LSM303AGR
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366 compass_sleep_LSM303AGR();
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367 }
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368
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369
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370 // ===============================================================================
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371 // compass_read
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372 /// @brief reads magnetometer and accelerometer for LSM303D,
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373 /// otherwise magnetometer only
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374 // ===============================================================================
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375 void compass_read(void)
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376 {
357
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377 if(hardwareCompass == compass_generation2) //LSM303D)
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378 compass_read_LSM303D();
357
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379 if(hardwareCompass == compass_generation1) //HMC5883L)
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380 compass_read_HMC5883L();
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381 if(hardwareCompass == compass_generation3) //LSM303AGR)
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382 compass_read_LSM303AGR();
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383
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384 }
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385
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386
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387 // ===============================================================================
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388 // accelerator_init
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389 /// @brief empty for for LSM303D
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390 // ===============================================================================
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391 void accelerator_init(void)
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392 {
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393 if(hardwareCompass == compass_generation1) //HMC5883L)
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394 accelerator_init_MMA8452Q();
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395 }
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396
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397
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398 // ===============================================================================
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399 // accelerator_sleep
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400 /// @brief empty for for LSM303D
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401 // ===============================================================================
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402 void accelerator_sleep(void)
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403 {
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404 if(hardwareCompass == compass_generation1) //HMC5883L)
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405 accelerator_sleep_MMA8452Q();
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406 }
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407
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408
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409 // ===============================================================================
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410 // acceleration_read
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411 /// @brief empty for for LSM303D
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412 // ===============================================================================
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413 void acceleration_read(void)
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414 {
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415 if(hardwareCompass == compass_generation2) //LSM303D)
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416 acceleration_read_LSM303D();
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417 if(hardwareCompass == compass_generation1) //HMC5883L)
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418 acceleration_read_MMA8452Q();
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419 if(hardwareCompass == compass_generation3) //LSM303AGR)
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420 acceleration_read_LSM303AGR();
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421 }
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422
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423
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424 /* Private functions ---------------------------------------------------------*/
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425
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426 // ===============================================================================
357
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427 // LSM303AGR_read_reg
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428 // ===============================================================================
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429 uint8_t LSM303AGR_read_reg(uint8_t addr)
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430 {
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431 uint8_t data;
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432
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433 I2C_Master_Transmit( DEVICE_COMPASS_303AGR, &addr, 1);
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434 I2C_Master_Receive( DEVICE_COMPASS_303AGR, &data, 1);
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435 return data;
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436 }
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437
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438
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439 // ===============================================================================
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440 // LSM303AGR_write_reg
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441 // ===============================================================================
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442 void LSM303AGR_write_reg(uint8_t addr, uint8_t value)
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443 {
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444 uint8_t data[2];
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445
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446 data[0] = addr;
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447 data[1] = value;
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448 I2C_Master_Transmit( DEVICE_COMPASS_303AGR, data, 2);
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449 }
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450
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451 // ===============================================================================
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452 // LSM303AGR_acc_write_reg
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453 // ===============================================================================
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454 void LSM303AGR_acc_write_reg(uint8_t addr, uint8_t value)
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455 {
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456 uint8_t data[2];
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457
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458 data[0] = addr;
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459 data[1] = value;
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460 I2C_Master_Transmit( DEVICE_ACCELARATOR_303AGR, data, 2);
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461 }
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462
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463
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464 // ===============================================================================
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465 // LSM303AGR_write_checked_reg
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466 // ===============================================================================
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467 void LSM303AGR_write_checked_reg(uint8_t addr, uint8_t value)
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468 {
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469 LSM303AGR_write_reg(addr, value);
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470 }
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471
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472 // ===============================================================================
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473 // LSM303AGR_acc_write_checked_reg
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474 // ===============================================================================
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475 void LSM303AGR_acc_write_checked_reg(uint8_t addr, uint8_t value)
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476 {
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477 LSM303AGR_acc_write_reg(addr, value);
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478 }
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479
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480 // ===============================================================================
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481 // LSM303D_read_reg
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482 // ===============================================================================
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483 uint8_t LSM303D_read_reg(uint8_t addr)
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484 {
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485 uint8_t data;
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486
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487 I2C_Master_Transmit( DEVICE_COMPASS_303D, &addr, 1);
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488 I2C_Master_Receive( DEVICE_COMPASS_303D, &data, 1);
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489 return data;
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490 }
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491
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492
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493 // ===============================================================================
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494 // LSM303D_write_reg
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495 // ===============================================================================
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496 void LSM303D_write_reg(uint8_t addr, uint8_t value)
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497 {
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498 uint8_t data[2];
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499
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500 /* enable accel*/
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501 data[0] = addr;
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502 data[1] = value;
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503 I2C_Master_Transmit( DEVICE_COMPASS_303D, data, 2);
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504 }
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505
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506
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507 // ===============================================================================
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508 // LSM303D_write_checked_reg
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509 // ===============================================================================
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510 void LSM303D_write_checked_reg(uint8_t addr, uint8_t value)
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511 {
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512 LSM303D_write_reg(addr, value);
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513 }
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514
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515
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516 // ===============================================================================
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517 // LSM303D_modify_reg
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518 // ===============================================================================
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519 void LSM303D_modify_reg(unsigned reg, uint8_t clearbits, uint8_t setbits)
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520 {
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521 uint8_t val;
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522
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523 val = LSM303D_read_reg(reg);
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524 val &= ~clearbits;
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525 val |= setbits;
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526 LSM303D_write_checked_reg(reg, val);
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527 }
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528
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529 // ===============================================================================
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530 // LSM303D_accel_set_onchip_lowpass_filter_bandwidth
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531 // ===============================================================================
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532 int LSM303D_accel_set_onchip_lowpass_filter_bandwidth(unsigned bandwidth)
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533 {
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534 uint8_t setbits = 0;
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535 uint8_t clearbits = REG2_ANTIALIAS_FILTER_BW_BITS_A;
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536
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537 if (bandwidth == 0) {
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538 bandwidth = 773;
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539 }
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540
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541 if (bandwidth <= 50) {
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542 setbits |= REG2_AA_FILTER_BW_50HZ_A;
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543 _accel_onchip_filter_bandwith = 50;
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544
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545 } else if (bandwidth <= 194) {
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546 setbits |= REG2_AA_FILTER_BW_194HZ_A;
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547 _accel_onchip_filter_bandwith = 194;
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548
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549 } else if (bandwidth <= 362) {
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550 setbits |= REG2_AA_FILTER_BW_362HZ_A;
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551 _accel_onchip_filter_bandwith = 362;
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552
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553 } else if (bandwidth <= 773) {
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554 setbits |= REG2_AA_FILTER_BW_773HZ_A;
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555 _accel_onchip_filter_bandwith = 773;
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556
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557 } else {
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558 return -1;
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559 }
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560
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561 LSM303D_modify_reg(ADDR_CTRL_REG2, clearbits, setbits);
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562
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563 return 0;
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564 }
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565
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566
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567 // ===============================================================================
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568 // LSM303D_accel_set_driver_lowpass_filter
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569 // ===============================================================================
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570 int LSM303D_accel_set_driver_lowpass_filter(float samplerate, float bandwidth)
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571 {
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572 /*
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573 _accel_filter_x_set_cutoff_frequency(samplerate, bandwidth);
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574 _accel_filter_y_set_cutoff_frequency(samplerate, bandwidth);
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575 _accel_filter_z_set_cutoff_frequency(samplerate, bandwidth);
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576 */
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577 return 0;
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578 }
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579
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580
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581 // rotate_mag_3f: nicht genutzt aber praktisch; rotate_accel_3f wird benutzt
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582 // ===============================================================================
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583 // rotate_mag_3f
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584 /// @brief swap axis in convient way, by hw
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585 /// @param *x raw input is set to *y input
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586 /// @param *y raw input is set to -*x input
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587 /// @param *z raw is not touched
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588 // ===============================================================================
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589 void rotate_mag_3f(float *x, float *y, float *z)
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590 {
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591 return;
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592 /*
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593 *x = *x; // HMC: *x = -*y
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594 *y = *y; // HMC: *y = *x // change 20.04.2016: zuvor *y = -*y
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595 *z = *z; // HMC: *z = *z
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596 */
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597 }
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598
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599
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600 // ===============================================================================
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601 // rotate_accel_3f
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602 /// @brief swap axis in convient way, by hw, same as MMA8452Q
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603 /// @param *x raw input, output is with sign change
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604 /// @param *y raw input, output is with sign change
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605 /// @param *z raw input, output is with sign change
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606 // ===============================================================================
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607 void rotate_accel_3f(float *x, float *y, float *z)
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608 {
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609 *x = -*x;
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610 *y = -*y;
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611 *z = -*z;
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612 /* tested:
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613 x = x, y =-y, z=-z: does not work with roll
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614 x = x, y =y, z=-z: does not work with pitch
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615 x = x, y =y, z=z: does not work at all
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616 */
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617 }
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618
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619
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620 // ===============================================================================
357
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621 // compass_init_LSM303D
38
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622 /// This might be called several times with different gain values during calibration
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623 /// but gain change is not supported at the moment.
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624 ///
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625 /// @param gain: 7 is max gain and set with here, compass_calib() might reduce it
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626 // ===============================================================================
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627
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628 //uint8_t testCompassLS303D[11];
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629
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630 void compass_init_LSM303D(uint8_t fast, uint8_t gain)
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631 {
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632 if(fast == 0)
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633 {
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634 LSM303D_write_checked_reg(ADDR_CTRL_REG0, 0x00);
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635 LSM303D_write_checked_reg(ADDR_CTRL_REG1, 0x3F); // mod 12,5 Hz 3 instead of 6,25 Hz 2
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636 LSM303D_write_checked_reg(ADDR_CTRL_REG2, 0xC0);
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637 LSM303D_write_checked_reg(ADDR_CTRL_REG3, 0x00);
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638 LSM303D_write_checked_reg(ADDR_CTRL_REG4, 0x00);
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639 LSM303D_write_checked_reg(ADDR_CTRL_REG5, 0x68); // mod 12,5 Hz 8 instead of 6,25 Hz 4
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640 }
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641 else
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642 {
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643 LSM303D_write_checked_reg(ADDR_CTRL_REG0, 0x00);
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644 LSM303D_write_checked_reg(ADDR_CTRL_REG1, 0x6F); // 100 Hz
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645 LSM303D_write_checked_reg(ADDR_CTRL_REG2, 0xC0);
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646 LSM303D_write_checked_reg(ADDR_CTRL_REG3, 0x00);
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647 LSM303D_write_checked_reg(ADDR_CTRL_REG4, 0x00);
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648 LSM303D_write_checked_reg(ADDR_CTRL_REG5, 0x74); // 100 Hz
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649 }
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650 LSM303D_write_checked_reg(ADDR_CTRL_REG6, 0x00);
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651 LSM303D_write_checked_reg(ADDR_CTRL_REG7, 0x00);
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652
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653 return;
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654 }
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655
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656
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657 // ===============================================================================
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658 // compass_sleep_LSM303D
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659 // @brief Gen 2 chip
38
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660 // ===============================================================================
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661 void compass_sleep_LSM303D(void)
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662 {
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663 LSM303D_write_checked_reg(ADDR_CTRL_REG1, 0x00); // CNTRL1: acceleration sensor Power-down mode
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664 LSM303D_write_checked_reg(ADDR_CTRL_REG7, 0x02); // CNTRL7: magnetic sensor Power-down mode
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665 }
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666
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667
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668 // ===============================================================================
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669 // acceleration_read_LSM303D
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670 // output is accel_DX_f, accel_DY_f, accel_DZ_f
38
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671 // ===============================================================================
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672 void acceleration_read_LSM303D(void)
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673 {
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674 uint8_t data;
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675 float xraw_f, yraw_f, zraw_f;
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676 float accel_report_x, accel_report_y, accel_report_z;
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677
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678 memset(accDataBuffer,0,6);
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679
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680 accel_DX_f = 0;
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681 accel_DY_f = 0;
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682 accel_DZ_f = 0;
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683
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684 for(int i=0;i<6;i++)
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685 {
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686 data = ADDR_OUT_X_L_A + i;
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687 I2C_Master_Transmit( DEVICE_COMPASS_303D, &data, 1);
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688 I2C_Master_Receive( DEVICE_COMPASS_303D, &accDataBuffer[i], 1);
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689 }
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690
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691 xraw_f = ((float)( (int16_t)((accDataBuffer[1] << 8) | (accDataBuffer[0]))));
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692 yraw_f = ((float)( (int16_t)((accDataBuffer[3] << 8) | (accDataBuffer[2]))));
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693 zraw_f = ((float)( (int16_t)((accDataBuffer[5] << 8) | (accDataBuffer[4]))));
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694
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695 rotate_accel_3f(&xraw_f, &yraw_f, &zraw_f);
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696
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697 // mh
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698 accel_report_x = xraw_f;
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699 accel_report_y = yraw_f;
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700 accel_report_z = zraw_f;
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701
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702 accel_DX_f = ((int16_t)(accel_report_x));
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703 accel_DY_f = ((int16_t)(accel_report_y));
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704 accel_DZ_f = ((int16_t)(accel_report_z));
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705 }
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706
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707
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708 // ===============================================================================
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709 // compass_read_LSM303D
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710 ///
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711 /// output is compass_DX_f, compass_DY_f, compass_DZ_f
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712 // ===============================================================================
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713 void compass_read_LSM303D(void)
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714 {
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715 uint8_t data;
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716 // float xraw_f, yraw_f, zraw_f;
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717 // float mag_report_x, mag_report_y, mag_report_z;
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718
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719 memset(magDataBuffer,0,6);
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720
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721 compass_DX_f = 0;
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722 compass_DY_f = 0;
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723 compass_DZ_f = 0;
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724
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725 for(int i=0;i<6;i++)
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726 {
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727 data = ADDR_OUT_X_L_M + i;
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728 I2C_Master_Transmit( DEVICE_COMPASS_303D, &data, 1);
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729 I2C_Master_Receive( DEVICE_COMPASS_303D, &magDataBuffer[i], 1);
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730 }
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731
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732 // mh 160620 flip x and y if flip display
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733 compass_DX_f = (((int16_t)((magDataBuffer[1] << 8) | (magDataBuffer[0]))));
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734 compass_DY_f = (((int16_t)((magDataBuffer[3] << 8) | (magDataBuffer[2]))));
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735 compass_DZ_f = (((int16_t)((magDataBuffer[5] << 8) | (magDataBuffer[4]))));
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736 // no rotation
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737 return;
357
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738 }
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739
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740
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741 // ===============================================================================
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742 // compass_init_LSM303AGR
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743 /// This might be called several times with different gain values during calibration
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744 /// but gain change is not supported at the moment.
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745 ///
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746 /// @param gain: 7 is max gain and set with here, compass_calib() might reduce it
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747 // ===============================================================================
38
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748
357
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749 void compass_init_LSM303AGR(uint8_t fast, uint8_t gain)
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750 {
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751 if(fast == 0)
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752 {
358
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753 // init compass
357
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754 LSM303AGR_write_checked_reg(0x60, 0x80); // 10Hz
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755 LSM303AGR_write_checked_reg(0x61, 0x03); // CFG_REG_B_M
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756 LSM303AGR_write_checked_reg(0x62, 0x10); // CFG_REG_C_M
358
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757 LSM303AGR_write_checked_reg(0x63, 0x00); // INT_CTRL_REG_M
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758
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759 // init accel (Same chip, but different address...)
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760 LSM303AGR_acc_write_checked_reg(0x1F, 0x00); // TEMP_CFG_REG_A (Temp sensor off)
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761 LSM303AGR_acc_write_checked_reg(0x20, 0x4F); // CTRL_REG1_A (50Hz, x,y,z = ON)
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762 LSM303AGR_acc_write_checked_reg(0x21, 0x00); // CTRL_REG2_A
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763 LSM303AGR_acc_write_checked_reg(0x22, 0x00); // CTRL_REG3_A
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764 LSM303AGR_acc_write_checked_reg(0x23, 0x08); // CTRL_REG4_A, High Resolution Mode enabled
357
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765 }
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766 else
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767 {
358
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768 // init compass
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769 LSM303AGR_write_checked_reg(0x60, 0x84); // 20Hz
357
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770 LSM303AGR_write_checked_reg(0x61, 0x03); // CFG_REG_B_M
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771 LSM303AGR_write_checked_reg(0x62, 0x10); // CFG_REG_C_M
358
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772 LSM303AGR_write_checked_reg(0x63, 0x00); // INT_CTRL_REG_M
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773
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774 // init accel (Same chip, but different address...)
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775 LSM303AGR_acc_write_checked_reg(0x1F, 0x00); // TEMP_CFG_REG_A (Temp sensor off)
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776 LSM303AGR_acc_write_checked_reg(0x20, 0x4F); // CTRL_REG1_A (50Hz, x,y,z = ON)
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777 LSM303AGR_acc_write_checked_reg(0x21, 0x00); // CTRL_REG2_A
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778 LSM303AGR_acc_write_checked_reg(0x22, 0x00); // CTRL_REG3_A
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779 LSM303AGR_acc_write_checked_reg(0x23, 0x0); // CTRL_REG4_A, High Resolution Mode enabled
357
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780 }
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781
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782 return;
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783 }
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784
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785
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786 // ===============================================================================
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787 // compass_sleep_LSM303D
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788 // @brief Gen 2 chip
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789 // ===============================================================================
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790 void compass_sleep_LSM303AGR(void)
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791 {
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792 LSM303AGR_write_checked_reg(0x60, 0x03); //
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793 LSM303AGR_write_checked_reg(0x61, 0x04); //
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794 LSM303AGR_write_checked_reg(0x62, 0x51); //
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795 LSM303AGR_write_checked_reg(0x63, 0x00); //
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796
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797
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798 LSM303AGR_acc_write_checked_reg(0x1F, 0x00); //
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799 LSM303AGR_acc_write_checked_reg(0x20, 0x00); //
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800 }
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801
38
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802
357
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803 // ===============================================================================
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804 // acceleration_read_LSM303AGR
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805 // output is accel_DX_f, accel_DY_f, accel_DZ_f
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806 // ===============================================================================
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807 void acceleration_read_LSM303AGR(void)
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808 {
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809 uint8_t data;
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810 float xraw_f, yraw_f, zraw_f;
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811 float accel_report_x, accel_report_y, accel_report_z;
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812
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813 memset(accDataBuffer,0,6);
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814
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815 accel_DX_f = 0;
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816 accel_DY_f = 0;
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817 accel_DZ_f = 0;
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818
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819 for(int i=0;i<6;i++)
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820 {
358
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821 data = 0x28 + i; // OUT_X_L_A
357
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822 I2C_Master_Transmit( DEVICE_ACCELARATOR_303AGR, &data, 1);
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823 I2C_Master_Receive( DEVICE_ACCELARATOR_303AGR, &accDataBuffer[i], 1);
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824 }
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825
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826 xraw_f = ((float)( (int16_t)((accDataBuffer[1] << 8) | (accDataBuffer[0]))));
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827 yraw_f = ((float)( (int16_t)((accDataBuffer[3] << 8) | (accDataBuffer[2]))));
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828 zraw_f = ((float)( (int16_t)((accDataBuffer[5] << 8) | (accDataBuffer[4]))));
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829
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830 rotate_accel_3f(&xraw_f, &yraw_f, &zraw_f);
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831
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832 // mh
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833 accel_report_x = xraw_f;
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834 accel_report_y = yraw_f;
358
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835 accel_report_z = -zraw_f; // flip Z in gen 2 hardware
357
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836
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837 accel_DX_f = ((int16_t)(accel_report_x));
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838 accel_DY_f = ((int16_t)(accel_report_y));
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839 accel_DZ_f = ((int16_t)(accel_report_z));
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840 }
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841
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842
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843 // ===============================================================================
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844 // compass_read_LSM303AGR
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845 ///
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846 /// output is compass_DX_f, compass_DY_f, compass_DZ_f
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847 // ===============================================================================
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848 void compass_read_LSM303AGR(void)
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849 {
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850 uint8_t data;
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851 // float xraw_f, yraw_f, zraw_f;
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852 // float mag_report_x, mag_report_y, mag_report_z;
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853
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854 memset(magDataBuffer,0,6);
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855
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856 compass_DX_f = 0;
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857 compass_DY_f = 0;
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858 compass_DZ_f = 0;
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859
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860 for(int i=0;i<6;i++)
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861 {
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862 data = 0x68 + i; // OUTX_L_REG_M
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863 I2C_Master_Transmit( DEVICE_COMPASS_303AGR, &data, 1);
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864 I2C_Master_Receive( DEVICE_COMPASS_303AGR, &magDataBuffer[i], 1);
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865 }
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866
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867 // mh 160620 flip x and y if flip display
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868 compass_DX_f = (((int16_t)((magDataBuffer[1] << 8) | (magDataBuffer[0]))));
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869 compass_DY_f = (((int16_t)((magDataBuffer[3] << 8) | (magDataBuffer[2]))));
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870 compass_DZ_f = (((int16_t)((magDataBuffer[5] << 8) | (magDataBuffer[4]))));
358
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871
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872 // align axis in gen 2 hardware
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873 compass_DZ_f *= -1;
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874
357
c3d511365552 Add Support for new end-2019 hardware:
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875 return;
38
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876 }
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877
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878
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879 // --------------------------------------------------------------------------------
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880 // ----------EARLIER COMPONENTS ---------------------------------------------------
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881 // --------------------------------------------------------------------------------
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882
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883 // ===============================================================================
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884 // compass_init_HMC5883L
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885 /// @brief The horrible Honeywell compass chip
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886 /// This might be called several times during calibration
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887 ///
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888 /// @param fast: 1 is fast mode, 0 is normal mode
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889 /// @param gain: 7 is max gain and set with here, compass_calib() might reduce it
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890 // ===============================================================================
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891 void compass_init_HMC5883L(uint8_t fast, uint8_t gain)
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892 {
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893 uint8_t write_buffer[4];
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894
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895 compass_gain = gain;
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896 uint16_t length = 0;
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897 write_buffer[0] = 0x00; // 00 = config Register A
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898
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899 if( fast )
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900 write_buffer[1] = 0x38; // 0b 0011 1000; // ConfigA: 75Hz, 2 Samples averaged
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901 else
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902 write_buffer[1] = 0x68; // 0b 0110 1000; // ConfigA: 3Hz, 8 Samples averaged
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903
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904 switch(gain)
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905 {
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906 case 7:
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907 write_buffer[2] = 0xE0; //0b 1110 0000; // ConfigB: gain
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908 break;
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909 case 6:
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910 write_buffer[2] = 0xC0; //0b 1100 0000; // ConfigB: gain
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911 break;
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912 case 5:
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913 write_buffer[2] = 0xA0; //0b 1010 0000; // ConfigB: gain
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914 break;
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915 case 4:
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916 write_buffer[2] = 0x80; //0b 1000 0000; // ConfigB: gain
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917 break;
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918 case 3:
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919 write_buffer[2] = 0x60; //0b 0110 0000; // ConfigB: gain
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920 break;
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921 case 2:
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922 write_buffer[2] = 0x40; //0b 01000 0000; // ConfigB: gain
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923 break;
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924 case 1:
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925 write_buffer[2] = 0x20; //0b 00100 0000; // ConfigB: gain
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926 break;
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927 case 0:
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928 write_buffer[2] = 0x00; //0b 00000 0000; // ConfigB: gain
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929 break;
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930 }
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931 write_buffer[3] = 0x00; // Mode: continuous mode
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932 length = 4;
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933 //hmc_twi_write(0);
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934 I2C_Master_Transmit( DEVICE_COMPASS_HMC5883L, write_buffer, length);
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935 }
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936
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937
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938
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939 // ===============================================================================
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940 // compass_sleep_HMC5883L
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941 /// @brief Power-down mode for Honeywell compass chip
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942 // ===============================================================================
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943 void compass_sleep_HMC5883L(void)
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944 {
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945 uint8_t write_buffer[4];
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946 uint16_t length = 0;
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947
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948 write_buffer[0] = 0x00; // 00 = config Register A
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949 write_buffer[1] = 0x68; // 0b 0110 1000; // ConfigA
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950 write_buffer[2] = 0x20; // 0b 0010 0000; // ConfigB
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951 write_buffer[3] = 0x02; // 0b 0000 0010; // Idle Mode
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952 length = 4;
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953 I2C_Master_Transmit( DEVICE_COMPASS_HMC5883L, write_buffer, length);
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954 }
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955
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956
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957 // ===============================================================================
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958 // accelerator_init_MMA8452Q
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959 /// @brief Power-down mode for acceleration chip used in combination with Honeywell compass
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960 // ===============================================================================
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961 void accelerator_init_MMA8452Q(void)
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962 {
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963 uint8_t write_buffer[4];
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964 uint16_t length = 0;
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965 //HAL_Delay(1);
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966 //return;
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967 write_buffer[0] = 0x0E; // XYZ_DATA_CFG
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968 write_buffer[1] = 0x00;//0b00000000; // High pass Filter=0 , +/- 2g range
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969 length = 2;
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970 I2C_Master_Transmit( DEVICE_ACCELARATOR_MMA8452Q, write_buffer, length);
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971 //HAL_Delay(1);
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972 write_buffer[0] = 0x2A; // CTRL_REG1
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973 write_buffer[1] = 0x34; //0b00110100; // CTRL_REG1: 160ms data rate, St.By Mode, reduced noise mode
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974 write_buffer[2] = 0x02; //0b00000010; // CTRL_REG2: High Res in Active mode
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975 length = 3;
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976 I2C_Master_Transmit( DEVICE_ACCELARATOR_MMA8452Q, write_buffer, length);
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977
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978 //HAL_Delay(1);
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979 //hw_delay_us(100);
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980 write_buffer[0] = 0x2A; // CTRL_REG1
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981 write_buffer[1] = 0x35; //0b00110101; // CTRL_REG1: ... Active Mode
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982 length = 2;
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983 I2C_Master_Transmit( DEVICE_ACCELARATOR_MMA8452Q, write_buffer, length);
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984 /*
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985 HAL_Delay(6);
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986 compass_read();
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987 HAL_Delay(1);
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988 acceleration_read();
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989
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990 compass_calc();
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991 */
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992 }
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993
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994
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995 // ===============================================================================
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996 // accelerator_sleep_MMA8452Q
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997 /// @brief compass_sleep_HMC5883L
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998 // ===============================================================================
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999 void accelerator_sleep_MMA8452Q(void)
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1000 {
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1001 uint16_t length = 0;
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1002 uint8_t write_buffer[4];
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1003
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1004 write_buffer[0] = 0x2A; // CTRL_REG1
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1005 write_buffer[1] = 0x00; //0b00000000; // CTRL_REG1: Standby Mode
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1006 length = 2;
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1007 I2C_Master_Transmit( DEVICE_ACCELARATOR_MMA8452Q, write_buffer, length);
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1008 }
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1009
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1010
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1011 // ===============================================================================
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1012 // compass_read_HMC5883L
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1013 /// @brief The new ST 303D - get ALL data and store in static variables
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1014 ///
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1015 /// output is compass_DX_f, compass_DY_f, compass_DZ_f
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1016 // ===============================================================================
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1017 void compass_read_HMC5883L(void)
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1018 {
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1019 uint8_t buffer[20];
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1020 compass_DX_f = 0;
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1021 compass_DY_f = 0;
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1022 compass_DZ_f = 0;
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1023 uint8_t length = 0;
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1024 uint8_t read_buffer[6];
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1025 signed_tword data;
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1026 for(int i = 0; i<6;i++)
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1027 read_buffer[i] = 0;
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1028 buffer[0] = 0x03; // 03 = Data Output X MSB Register
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1029 length = 1;
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1030 I2C_Master_Transmit( DEVICE_COMPASS_HMC5883L, buffer, length);
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1031 length = 6;
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1032 I2C_Master_Receive( DEVICE_COMPASS_HMC5883L, read_buffer, length);
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1033
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1034
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1035 data.Byte.hi = read_buffer[0];
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1036 data.Byte.low = read_buffer[1];
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1037 //Y = Z
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1038 compass_DY_f = - data.Word;
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1039
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1040 data.Byte.hi = read_buffer[2];
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1041 data.Byte.low = read_buffer[3];
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1042 compass_DZ_f = data.Word;
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1043
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1044 data.Byte.hi = read_buffer[4];
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1045 data.Byte.low = read_buffer[5];
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1046 //X = -Y
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1047 compass_DX_f = data.Word;
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1048 }
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1049
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1050
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1051 // ===============================================================================
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1052 // acceleration_read_MMA8452Q
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1053 /// @brief The old MMA8452Q used with the Honeywell compass
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1054 /// get the acceleration data and store in static variables
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parents:
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1055 ///
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1056 /// output is accel_DX_f, accel_DY_f, accel_DZ_f
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1057 // ===============================================================================
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1058 void acceleration_read_MMA8452Q(void)
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1059 {
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1060 uint8_t buffer[20];
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1061 accel_DX_f = 0;
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1062 accel_DY_f = 0;
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1063 accel_DZ_f = 0;
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1064 uint8_t length = 0;
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1065 // bit8_Type status ;
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1066 uint8_t read_buffer[7];
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1067 signed_tword data;
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1068 for(int i = 0; i<6;i++)
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1069 read_buffer[i] = 0;
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1070 buffer[0] = 0x00; // 03 = Data Output X MSB Register
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1071 length = 1;
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1072 I2C_Master_Transmit( DEVICE_ACCELARATOR_MMA8452Q, buffer, length);
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1073 length = 7;
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1074 I2C_Master_Receive( DEVICE_ACCELARATOR_MMA8452Q, read_buffer, length);
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1075
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1076 // status.uw = read_buffer[0];
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1077 data.Byte.hi = read_buffer[1];
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1078 data.Byte.low = read_buffer[2];
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1079 accel_DX_f =data.Word/16;
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1080 data.Byte.hi = read_buffer[3];
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1081 data.Byte.low = read_buffer[4];
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1082 accel_DY_f =data.Word/16;
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1083 data.Byte.hi = read_buffer[5];
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1084 data.Byte.low = read_buffer[6];
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1085 accel_DZ_f =data.Word/16;
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1086
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1087 accel_DX_f *= -1;
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1088 accel_DY_f *= -1;
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1089 accel_DZ_f *= -1;
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1090 }
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diff changeset
1091
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1092
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1093 // ===============================================================================
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1094 // compass_calc_roll_pitch_only
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1095 /// @brief only the roll and pitch parts of compass_calc()
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1096 ///
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1097 /// input is accel_DX_f, accel_DY_f, accel_DZ_f
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1098 /// output is compass_pitch and compass_roll
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1099 // ===============================================================================
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1100 void compass_calc_roll_pitch_only(void)
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1101 {
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1102 float sinPhi, cosPhi;
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1103 float Phi, Teta;
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1104
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1105 //---- Calculate sine and cosine of roll angle Phi -----------------------
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1106 Phi= atan2f(accel_DY_f, accel_DZ_f) ;
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1107 compass_roll = Phi * 180.0f /PI;
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1108 sinPhi = sinf(Phi);
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1109 cosPhi = cosf(Phi);
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1110
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1111 //---- calculate sin and cosine of pitch angle Theta ---------------------
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1112 Teta = atanf(-(float)accel_DX_f/(accel_DY_f * sinPhi + accel_DZ_f * cosPhi));
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1113 compass_pitch = Teta * 180.0f /PI;
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1114 }
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1115
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1116
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1117 // ===============================================================================
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1118 // compass_calc
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1119 /// @brief all the fancy stuff first implemented in OSTC3
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1120 ///
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1121 /// input is compass_DX_f, compass_DY_f, compass_DZ_f, accel_DX_f, accel_DY_f, accel_DZ_f
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1122 /// and compass_CX_f, compass_CY_f, compass_CZ_f
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1123 /// output is compass_heading, compass_pitch and compass_roll
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1124 // ===============================================================================
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1125 void compass_calc(void)
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1126 {
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1127 float sinPhi, cosPhi, sinTeta, cosTeta;
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1128 float Phi, Teta, Psi;
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1129 int16_t iBfx, iBfy;
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1130 int16_t iBpx, iBpy, iBpz;
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1131
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1132 //---- Make hard iron correction -----------------------------------------
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1133 // Measured magnetometer orientation, measured ok.
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1134 // From matthias drawing: (X,Y,Z) --> (X,Y,Z) : no rotation.
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1135 iBpx = compass_DX_f - compass_CX_f; // X
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1136 iBpy = compass_DY_f - compass_CY_f; // Y
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1137 iBpz = compass_DZ_f - compass_CZ_f; // Z
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1138
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1139 //---- Calculate sine and cosine of roll angle Phi -----------------------
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1140 //sincos(accel_DZ_f, accel_DY_f, &sin, &cos);
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1141 Phi= atan2f(accel_DY_f, accel_DZ_f) ;
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1142 compass_roll = Phi * 180.0f /PI;
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1143 sinPhi = sinf(Phi);
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1144 cosPhi = cosf(Phi);
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1145
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1146 //---- rotate by roll angle (-Phi) ---------------------------------------
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1147 iBfy = iBpy * cosPhi - iBpz * sinPhi;
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1148 iBpz = iBpy * sinPhi + iBpz * cosPhi;
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diff changeset
1149 //Gz = imul(accel_DY_f, sin) + imul(accel_DZ_f, cos);
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1150
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1151 //---- calculate sin and cosine of pitch angle Theta ---------------------
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1152 //sincos(Gz, -accel_DX_f, &sin, &cos); // NOTE: changed sin sign.
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1153 // Teta takes into account roll of computer and sends combination of Y and Z :-) understand now hw 160421
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1154 Teta = atanf(-(float)accel_DX_f/(accel_DY_f * sinPhi + accel_DZ_f * cosPhi));
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1155 compass_pitch = Teta * 180.0f /PI;
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1156 sinTeta = sinf(Teta);
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1157 cosTeta = cosf(Teta);
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1158 /* correct cosine if pitch not in range -90 to 90 degrees */
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1159 if( cosTeta < 0 ) cosTeta = -cosTeta;
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1160
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1161 ///---- de-rotate by pitch angle Theta -----------------------------------
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1162 iBfx = iBpx * cosTeta + iBpz * sinTeta;
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1163
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1164 //---- Detect uncalibrated compass ---------------------------------------
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1165 if( !compass_CX_f && !compass_CY_f && !compass_CZ_f )
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1166 {
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1167 compass_heading = -1;
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1168 return;
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diff changeset
1169 }
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diff changeset
1170
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1171 //---- calculate current yaw = e-compass angle Psi -----------------------
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1172 // Result in degree (no need of 0.01 deg precision...
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1173 Psi = atan2f(-iBfy,iBfx);
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1174 compass_heading = Psi * 180.0f /PI;
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1175 // Result in 0..360 range:
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1176 if( compass_heading < 0 )
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1177 compass_heading += 360;
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diff changeset
1178 }
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diff changeset
1179
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1180
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1181 // //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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1182 // // - Calibration - ///////////////////////////////////////////////////////////////////////////////////////////////////////
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1183 // //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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1184
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1185 /* can be lost during sleep as those are reset with compass_reset_calibration() */
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1186
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1187 // ===============================================================================
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1188 // compass_reset_calibration
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1189 /// @brief all the fancy stuff first implemented in OSTC3
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1190 ///
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1191 /// output is struct g and compass_CX_f, compass_CY_f, compass_CZ_f
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1192 ///
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1193 /// @param g: is a struct with crazy stuff like Suuu, Svvv, Svvu, etc.
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1194 /// all is set to zero here
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1195 // ===============================================================================
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1196 void compass_reset_calibration(SCompassCalib *g)
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1197 {
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1198 g->compass_N = 0;
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1199 g->Su = g->Sv = g->Sw = 0.0;
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1200 g->Suu = g->Svv = g->Sww = g->Suv = g->Suw = g->Svw = 0.0;
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1201 g->Suuu = g->Svvv = g->Swww = 0.0;
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1202 g->Suuv = g->Suuw = g->Svvu = g->Svvw = g->Swwu = g->Swwv = 0.0;
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1203 compass_CX_f = compass_CY_f = compass_CZ_f = 0.0;
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1204 }
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1205
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1206
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1207 // ===============================================================================
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1208 // compass_add_calibration
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1209 /// @brief all the fancy stuff first implemented in OSTC3
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heinrichsweikamp
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1210 ///
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1211 /// input is compass_DX_f, compass_DY_f, compass_DZ_f
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1212 /// and compass_CX_f, compass_CY_f, compass_CZ_f
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1213 /// output is struct g
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1214 ///
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1215 /// @param g: is a struct with crazy stuff like Suuu, Svvv, Svvu, etc.
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1216 // ===============================================================================
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1217 void compass_add_calibration(SCompassCalib *g)
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1218 {
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1219 float u, v, w;
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1220
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1221 u = (compass_DX_f - compass_CX_f) / 32768.0f;
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1222 v = (compass_DY_f - compass_CY_f) / 32768.0f;
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1223 w = (compass_DZ_f - compass_CZ_f) / 32768.0f;
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1224
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1225 g->compass_N++;
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parents:
diff changeset
1226 g->Su += u;
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heinrichsweikamp
parents:
diff changeset
1227 g->Sv += v;
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heinrichsweikamp
parents:
diff changeset
1228 g->Sw += w;
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heinrichsweikamp
parents:
diff changeset
1229 g->Suv += u*v;
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heinrichsweikamp
parents:
diff changeset
1230 g->Suw += u*w;
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heinrichsweikamp
parents:
diff changeset
1231 g->Svw += v*w;
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heinrichsweikamp
parents:
diff changeset
1232 g->Suu += u*u;
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heinrichsweikamp
parents:
diff changeset
1233 g->Suuu += u*u*u;
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parents:
diff changeset
1234 g->Suuv += v*u*u;
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heinrichsweikamp
parents:
diff changeset
1235 g->Suuw += w*u*u;
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heinrichsweikamp
parents:
diff changeset
1236 g->Svv += v*v;
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heinrichsweikamp
parents:
diff changeset
1237 g->Svvv += v*v*v;
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heinrichsweikamp
parents:
diff changeset
1238 g->Svvu += u*v*v;
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heinrichsweikamp
parents:
diff changeset
1239 g->Svvw += w*v*v;
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heinrichsweikamp
parents:
diff changeset
1240 g->Sww += w*w;
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heinrichsweikamp
parents:
diff changeset
1241 g->Swww += w*w*w;
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heinrichsweikamp
parents:
diff changeset
1242 g->Swwu += u*w*w;
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heinrichsweikamp
parents:
diff changeset
1243 g->Swwv += v*w*w;
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heinrichsweikamp
parents:
diff changeset
1244 }
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heinrichsweikamp
parents:
diff changeset
1245
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heinrichsweikamp
parents:
diff changeset
1246 //////////////////////////////////////////////////////////////////////////////
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heinrichsweikamp
parents:
diff changeset
1247
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heinrichsweikamp
parents:
diff changeset
1248 // ===============================================================================
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heinrichsweikamp
parents:
diff changeset
1249 // compass_solve_calibration
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heinrichsweikamp
parents:
diff changeset
1250 /// @brief all the fancy stuff first implemented in OSTC3
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heinrichsweikamp
parents:
diff changeset
1251 ///
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heinrichsweikamp
parents:
diff changeset
1252 /// input is compass_CX_f, compass_CY_f, compass_CZ_f and g
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heinrichsweikamp
parents:
diff changeset
1253 /// output is struct g
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heinrichsweikamp
parents:
diff changeset
1254 ///
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heinrichsweikamp
parents:
diff changeset
1255 /// @param g: is a struct with crazy stuff like Suuu, Svvv, Svvu, etc.
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heinrichsweikamp
parents:
diff changeset
1256 // ===============================================================================
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parents:
diff changeset
1257 void compass_solve_calibration(SCompassCalib *g)
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heinrichsweikamp
parents:
diff changeset
1258 {
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parents:
diff changeset
1259 float yu, yv, yw;
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heinrichsweikamp
parents:
diff changeset
1260 float delta;
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heinrichsweikamp
parents:
diff changeset
1261 float uc, vc, wc;
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heinrichsweikamp
parents:
diff changeset
1262
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heinrichsweikamp
parents:
diff changeset
1263
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parents:
diff changeset
1264 //---- Normalize partial sums --------------------------------------------
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heinrichsweikamp
parents:
diff changeset
1265 //
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heinrichsweikamp
parents:
diff changeset
1266 // u, v, w should be centered on the mean value um, vm, wm:
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heinrichsweikamp
parents:
diff changeset
1267 // x = u + um, with um = Sx/N
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heinrichsweikamp
parents:
diff changeset
1268 //
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parents:
diff changeset
1269 // So:
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heinrichsweikamp
parents:
diff changeset
1270 // (u + um)**2 = u**2 + 2u*um + um**2
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heinrichsweikamp
parents:
diff changeset
1271 // Su = 0, um = Sx/N
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parents:
diff changeset
1272 // Sxx = Suu + 2 um Su + N*(Sx/N)**2 = Suu + Sx**2/N
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heinrichsweikamp
parents:
diff changeset
1273 // Suu = Sxx - Sx**2/N
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heinrichsweikamp
parents:
diff changeset
1274 yu = g->Su/g->compass_N;
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parents:
diff changeset
1275 yv = g->Sv/g->compass_N;
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heinrichsweikamp
parents:
diff changeset
1276 yw = g->Sw/g->compass_N;
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heinrichsweikamp
parents:
diff changeset
1277
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heinrichsweikamp
parents:
diff changeset
1278 g->Suu -= g->Su*yu;
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heinrichsweikamp
parents:
diff changeset
1279 g->Svv -= g->Sv*yv;
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heinrichsweikamp
parents:
diff changeset
1280 g->Sww -= g->Sw*yw;
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parents:
diff changeset
1281
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heinrichsweikamp
parents:
diff changeset
1282 // (u + um)(v + vm) = uv + u vm + v um + um vm
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heinrichsweikamp
parents:
diff changeset
1283 // Sxy = Suv + N * um vm
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heinrichsweikamp
parents:
diff changeset
1284 // Suv = Sxy - N * (Sx/N)(Sy/N);
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heinrichsweikamp
parents:
diff changeset
1285 g->Suv -= g->Su*yv;
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heinrichsweikamp
parents:
diff changeset
1286 g->Suw -= g->Su*yw;
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heinrichsweikamp
parents:
diff changeset
1287 g->Svw -= g->Sv*yw;
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heinrichsweikamp
parents:
diff changeset
1288
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heinrichsweikamp
parents:
diff changeset
1289 // (u + um)**3 = u**3 + 3 u**2 um + 3 u um**2 + um**3
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heinrichsweikamp
parents:
diff changeset
1290 // Sxxx = Suuu + 3 um Suu + 3 um**2 Su + N.um**3
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parents:
diff changeset
1291 // Su = 0, um = Sx/N:
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parents:
diff changeset
1292 // Suuu = Sxxx - 3 Sx*Suu/N - N.(Sx/N)**3
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heinrichsweikamp
parents:
diff changeset
1293 // = Sxxx - 3 Sx*Suu/N - Sx**3/N**2
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heinrichsweikamp
parents:
diff changeset
1294
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parents:
diff changeset
1295 // (u + um)**2 (v + vm) = (u**2 + 2 u um + um**2)(v + vm)
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heinrichsweikamp
parents:
diff changeset
1296 // Sxxy = Suuv + vm Suu + 2 um (Suv + vm Su) + um**2 (Sv + N.vm)
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heinrichsweikamp
parents:
diff changeset
1297 //
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heinrichsweikamp
parents:
diff changeset
1298 // Su = 0, Sv = 0, vm = Sy/N:
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heinrichsweikamp
parents:
diff changeset
1299 // Sxxy = Suuv + vm Suu + 2 um Suv + N um**2 vm
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heinrichsweikamp
parents:
diff changeset
1300 //
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parents:
diff changeset
1301 // Suuv = Sxxy - (Sy/N) Suu - 2 (Sx/N) Suv - (Sx/N)**2 Sy
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heinrichsweikamp
parents:
diff changeset
1302 // = Sxxy - Suu*Sy/N - 2 Suv*Sx/N - Sx*Sx*Sy/N/N
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heinrichsweikamp
parents:
diff changeset
1303 // = Sxxy - (Suu + Sx*Sx/N)*Sy/N - 2 Suv*Sx/N
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heinrichsweikamp
parents:
diff changeset
1304 g->Suuu -= (3*g->Suu + g->Su*yu)*yu;
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parents:
diff changeset
1305 g->Suuv -= (g->Suu + g->Su*yu)*yv + 2*g->Suv*yu;
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heinrichsweikamp
parents:
diff changeset
1306 g->Suuw -= (g->Suu + g->Su*yu)*yw + 2*g->Suw*yu;
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heinrichsweikamp
parents:
diff changeset
1307
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parents:
diff changeset
1308 g->Svvu -= (g->Svv + g->Sv*yv)*yu + 2*g->Suv*yv;
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parents:
diff changeset
1309 g->Svvv -= (3*g->Svv + g->Sv*yv)*yv;
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parents:
diff changeset
1310 g->Svvw -= (g->Svv + g->Sv*yv)*yw + 2*g->Svw*yv;
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heinrichsweikamp
parents:
diff changeset
1311
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parents:
diff changeset
1312 g->Swwu -= (g->Sww + g->Sw*yw)*yu + 2*g->Suw*yw;
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parents:
diff changeset
1313 g->Swwv -= (g->Sww + g->Sw*yw)*yv + 2*g->Svw*yw;
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heinrichsweikamp
parents:
diff changeset
1314 g->Swww -= (3*g->Sww + g->Sw*yw)*yw;
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heinrichsweikamp
parents:
diff changeset
1315
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heinrichsweikamp
parents:
diff changeset
1316 //---- Solve the system --------------------------------------------------
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heinrichsweikamp
parents:
diff changeset
1317 // uc Suu + vc Suv + wc Suw = (Suuu + Svvu + Swwu) / 2
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heinrichsweikamp
parents:
diff changeset
1318 // uc Suv + vc Svv + wc Svw = (Suuv + Svvv + Swwv) / 2
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heinrichsweikamp
parents:
diff changeset
1319 // uc Suw + vc Svw + wc Sww = (Suuw + Svvw + Swww) / 2
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heinrichsweikamp
parents:
diff changeset
1320 // Note this is symetric, with a positiv diagonal, hence
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heinrichsweikamp
parents:
diff changeset
1321 // it always have a uniq solution.
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heinrichsweikamp
parents:
diff changeset
1322 yu = 0.5f * (g->Suuu + g->Svvu + g->Swwu);
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heinrichsweikamp
parents:
diff changeset
1323 yv = 0.5f * (g->Suuv + g->Svvv + g->Swwv);
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heinrichsweikamp
parents:
diff changeset
1324 yw = 0.5f * (g->Suuw + g->Svvw + g->Swww);
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heinrichsweikamp
parents:
diff changeset
1325 delta = g->Suu * (g->Svv * g->Sww - g->Svw * g->Svw)
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heinrichsweikamp
parents:
diff changeset
1326 - g->Suv * (g->Suv * g->Sww - g->Svw * g->Suw)
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heinrichsweikamp
parents:
diff changeset
1327 + g->Suw * (g->Suv * g->Svw - g->Svv * g->Suw);
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heinrichsweikamp
parents:
diff changeset
1328
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heinrichsweikamp
parents:
diff changeset
1329 uc = (yu * (g->Svv * g->Sww - g->Svw * g->Svw)
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heinrichsweikamp
parents:
diff changeset
1330 - yv * (g->Suv * g->Sww - g->Svw * g->Suw)
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heinrichsweikamp
parents:
diff changeset
1331 + yw * (g->Suv * g->Svw - g->Svv * g->Suw) )/delta;
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heinrichsweikamp
parents:
diff changeset
1332 vc = (g->Suu * ( yv * g->Sww - yw * g->Svw)
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heinrichsweikamp
parents:
diff changeset
1333 - g->Suv * ( yu * g->Sww - yw * g->Suw)
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heinrichsweikamp
parents:
diff changeset
1334 + g->Suw * ( yu * g->Svw - yv * g->Suw) )/delta;
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heinrichsweikamp
parents:
diff changeset
1335 wc = (g->Suu * (g->Svv * yw - g->Svw * yv )
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heinrichsweikamp
parents:
diff changeset
1336 - g->Suv * (g->Suv * yw - g->Svw * yu )
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heinrichsweikamp
parents:
diff changeset
1337 + g->Suw * (g->Suv * yv - g->Svv * yu ) )/delta;
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heinrichsweikamp
parents:
diff changeset
1338
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heinrichsweikamp
parents:
diff changeset
1339 // Back to uncentered coordinates:
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heinrichsweikamp
parents:
diff changeset
1340 // xc = um + uc
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heinrichsweikamp
parents:
diff changeset
1341 uc = g->Su/g->compass_N + compass_CX_f/32768.0f + uc;
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heinrichsweikamp
parents:
diff changeset
1342 vc = g->Sv/g->compass_N + compass_CY_f/32768.0f + vc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1343 wc = g->Sw/g->compass_N + compass_CZ_f/32768.0f + wc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1344
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heinrichsweikamp
parents:
diff changeset
1345 // Then save the new calibrated center:
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heinrichsweikamp
parents:
diff changeset
1346 compass_CX_f = (short)(32768 * uc);
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heinrichsweikamp
parents:
diff changeset
1347 compass_CY_f = (short)(32768 * vc);
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heinrichsweikamp
parents:
diff changeset
1348 compass_CZ_f = (short)(32768 * wc);
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heinrichsweikamp
parents:
diff changeset
1349 }
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heinrichsweikamp
parents:
diff changeset
1350
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heinrichsweikamp
parents:
diff changeset
1351
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heinrichsweikamp
parents:
diff changeset
1352 // ===============================================================================
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heinrichsweikamp
parents:
diff changeset
1353 // compass_calib
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heinrichsweikamp
parents:
diff changeset
1354 /// @brief the main loop for calibration
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heinrichsweikamp
parents:
diff changeset
1355 /// output is compass_CX_f, compass_CY_f, compass_CZ_f and g
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heinrichsweikamp
parents:
diff changeset
1356 /// 160704 removed -4096 limit for LSM303D
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heinrichsweikamp
parents:
diff changeset
1357 ///
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heinrichsweikamp
parents:
diff changeset
1358 /// @return always 0
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heinrichsweikamp
parents:
diff changeset
1359 // ===============================================================================
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heinrichsweikamp
parents:
diff changeset
1360 int compass_calib_common(void)
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heinrichsweikamp
parents:
diff changeset
1361 {
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1362 SCompassCalib g;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1363
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1364 // Starts with no calibration at all:
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1365 compass_reset_calibration(&g);
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1366 uint32_t tickstart = 0;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1367 tickstart = HAL_GetTick();
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1368 /* run calibration for one minute */
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1369 while(time_elapsed_ms(tickstart,HAL_GetTick()) < 60000)
38
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heinrichsweikamp
parents:
diff changeset
1370 {
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1371 while((SPI_Evaluate_RX_Data() == 0) && (time_elapsed_ms(tickstart,HAL_GetTick()) < 60000))
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1372 {
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1373 HAL_Delay(1);
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1374 }
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1375 compass_read();
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1376 acceleration_read();
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1377 compass_calc_roll_pitch_only();
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1378
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1379 if((hardwareCompass == compass_generation1 ) //HMC5883L)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1380 &&((compass_DX_f == -4096) ||
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1381 (compass_DY_f == -4096) ||
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1382 (compass_DZ_f == -4096) ))
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1383 {
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1384 if(compass_gain == 0)
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1385 return -1;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1386 compass_gain--;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1387 compass_init(1, compass_gain);
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1388 compass_reset_calibration(&g);
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1389 continue;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1390 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1391
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1392 copyCompassDataDuringCalibration(compass_DX_f,compass_DY_f,compass_DZ_f);
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1393 compass_add_calibration(&g);
104
22a1094545f3 Tested and alive.
Dmitry Romanov <kitt@bk.ru>
parents: 70
diff changeset
1394 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1395
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1396 compass_solve_calibration(&g);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1397
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1398 tfull32 dataBlock[4];
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1399 dataBlock[0].Word16.low16 = compass_CX_f;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1400 dataBlock[0].Word16.hi16 = compass_CY_f;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1401 dataBlock[1].Word16.low16 = compass_CZ_f;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1402 dataBlock[1].Word16.hi16 = 0xFFFF;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1403 dataBlock[2].Full32 = 0x7FFFFFFF;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1404 dataBlock[3].Full32 = 0x7FFFFFFF;
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1405 BFA_writeDataBlock((uint32_t *)dataBlock);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1406
410
f9458e979154 Bugfix display compass calibration frozen:
ideenmodellierer
parents: 358
diff changeset
1407 return 0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1408 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1409