annotate Discovery/Src/tCCR.c @ 631:49a662df8210

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author Ideenmodellierer
date Tue, 23 Feb 2021 21:55:26 +0100
parents 64bf41faab83
children 7c73f066cd16
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1 ///////////////////////////////////////////////////////////////////////////////
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2 /// -*- coding: UTF-8 -*-
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3 ///
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4 /// \file Discovery/Src/tCCR.c
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5 /// \brief HUD data via optical port
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6 /// \author Heinrichs Weikamp gmbh
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7 /// \date 18-Dec-2014
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8 ///
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9 /// \details
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10 ///
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11 /// $Id$
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12 ///////////////////////////////////////////////////////////////////////////////
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13 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
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14 ///
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15 /// This program is free software: you can redistribute it and/or modify
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16 /// it under the terms of the GNU General Public License as published by
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17 /// the Free Software Foundation, either version 3 of the License, or
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18 /// (at your option) any later version.
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19 ///
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20 /// This program is distributed in the hope that it will be useful,
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21 /// but WITHOUT ANY WARRANTY; without even the implied warranty of
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22 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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23 /// GNU General Public License for more details.
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24 ///
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25 /// You should have received a copy of the GNU General Public License
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26 /// along with this program. If not, see <http://www.gnu.org/licenses/>.
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27 //////////////////////////////////////////////////////////////////////////////
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28
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29 /* Includes ------------------------------------------------------------------*/
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30 #include <string.h>
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31 #include "tCCR.h"
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32 #include "ostc.h"
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33 #include "data_central.h"
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34 #include "data_exchange.h"
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35 #include "check_warning.h"
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36 #include "configuration.h"
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37
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38 /* Private types -------------------------------------------------------------*/
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39 typedef struct
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40 {
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41 uint8_t hud_firmwareVersion;
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42 bit8_Type status_byte;
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43 uint16_t sensor_voltage_100uV[3];
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44 uint8_t sensor_ppo2_cbar[3];
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45 uint8_t temp1;
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46 uint16_t battery_voltage_mV;
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47 uint16_t checksum;
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48 } SIrLink;
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49
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50 #define HUD_BABBLING_IDIOT (30u) /* 30 Bytes received without break */
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51 #define HUD_RX_FRAME_LENGTH (15u) /* Length of a HUD data frame */
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52 #define HUD_RX_FRAME_BREAK_MS (100u) /* Time used to detect a gap between two byte receptions => frame start */
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53 #define HUD_RX_START_DELAY_MS (500u) /* Delay for start of RX function to avoid start of reception while a transmission is ongoing. */
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54 /* Based on an assumed cycle time by the sensor of 1 second. Started at time of last RX */
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55
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56 #define BOTTLE_SENSOR_TIMEOUT (6000u) /* signal pressure budget as not received after 10 minutes (6000 * 100ms) */
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57
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58 /* Private variables ---------------------------------------------------------*/
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59 static SIrLink receiveHUD[2];
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60 static uint8_t boolHUDdata = 0;
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61 static uint8_t data_old__lost_connection_to_HUD = 1;
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62
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63 static uint8_t receiveHUDraw[16];
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64
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65 static uint8_t StartListeningToUART_HUD = 0;
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66 static uint16_t HUDTimeoutCount = 0;
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67
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68 static __IO ITStatus UartReadyHUD = RESET;
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69 static uint32_t LastReceivedTick_HUD = 0;
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70
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71 /* Private variables with external access via get_xxx() function -------------*/
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72
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73 /* Private function prototypes -----------------------------------------------*/
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74 static void tCCR_fallbackToFixedSetpoint(void);
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75
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76 #ifndef USART_IR_HUD
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77
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78 void tCCR_init(void)
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79 {
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80 }
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81 void tCCR_control(void)
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82 {
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83 }
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84 void tCCR_test(void)
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85 {
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86 }
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87 void tCCR_restart(void)
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88 {
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89 }
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90 float get_ppO2Sensor_bar(uint8_t sensor_id)
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91 {
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92 }
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93 float get_sensorVoltage_mV(uint8_t sensor_id)
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94 {
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95 }
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96 float get_HUD_battery_voltage_V(void)
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97 {
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98 }
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99 void tCCR_tick(void)
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100 {
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101 }
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102
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103 #else
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104 /* Exported functions --------------------------------------------------------*/
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105
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106 float get_ppO2Sensor_bar(uint8_t sensor_id)
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107 {
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108 if((sensor_id > 2) || data_old__lost_connection_to_HUD)
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109 return 0;
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110
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111 return (float)(receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id]) / 100.0f;
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112 }
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113
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114 float get_sensorVoltage_mV(uint8_t sensor_id)
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115 {
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116 if((sensor_id > 2) || data_old__lost_connection_to_HUD)
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117 return 0;
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118
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119 return (float)(receiveHUD[boolHUDdata].sensor_voltage_100uV[sensor_id]) / 10.0f;
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120 }
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121
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122 float get_HUD_battery_voltage_V(void)
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123 {
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124 if(data_old__lost_connection_to_HUD)
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125 return 0;
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126
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127 return (float)(receiveHUD[boolHUDdata].battery_voltage_mV) / 1000.0f;
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128 }
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129
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130
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131 void test_O2_sensor_values_outOfBounds(int8_t * outOfBouds1, int8_t * outOfBouds2, int8_t * outOfBouds3)
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132 {
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133 uint8_t sensorNotActiveBinary;
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134 uint8_t sensorActive[3];
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135
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136 // test1: user deactivation
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137 sensorNotActiveBinary = stateUsed->diveSettings.ppo2sensors_deactivated;
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138
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139 for(int i=0;i<3;i++)
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140 sensorActive[i] = 1;
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141
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142 if(sensorNotActiveBinary)
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143 {
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144 if(sensorNotActiveBinary & 1)
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145 sensorActive[0] = 0;
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146
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147 if(sensorNotActiveBinary & 2)
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148 sensorActive[1] = 0;
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149
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150 if(sensorNotActiveBinary & 4)
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151 sensorActive[2] = 0;
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152 }
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153
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154 // test2: mV of remaining sensors
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155 for(int i=0;i<3;i++)
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156 {
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157 if(sensorActive[i])
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158 {
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159 if( (stateUsed->lifeData.sensorVoltage_mV[i] < 8) ||
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160 (stateUsed->lifeData.sensorVoltage_mV[i] > 250))
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161 {
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162 sensorActive[i] = 0;
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163 switch(i)
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164 {
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165 case 0:
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166 sensorNotActiveBinary |= 1;
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167 break;
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168 case 1:
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169 sensorNotActiveBinary |= 2;
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170 break;
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171 case 2:
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172 sensorNotActiveBinary |= 4;
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173 break;
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174 }
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175 }
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176 }
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177 }
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178
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179 *outOfBouds1 = 0;
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180 *outOfBouds2 = 0;
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181 *outOfBouds3 = 0;
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182
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183 /* with two, one or no sensor, there is nothing to compare anymore
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184 */
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185 if(sensorNotActiveBinary)
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186 {
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187 // set outOfBounds for both tests
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188 if(!sensorActive[0])
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189 *outOfBouds1 = 1;
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190
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191 if(!sensorActive[1])
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192 *outOfBouds2 = 1;
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193
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194 if(!sensorActive[2])
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195 *outOfBouds3 = 1;
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196 }
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197 else
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198 {
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199 uint8_t sensor_id_ordered[3];
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200 float difference[2];
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201
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202 if((stateUsed->lifeData.ppO2Sensor_bar[1] > stateUsed->lifeData.ppO2Sensor_bar[0]))
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203 {
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204 sensor_id_ordered[0] = 0;
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205 sensor_id_ordered[1] = 1;
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206 }
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207 else
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208 {
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209 sensor_id_ordered[0] = 1;
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210 sensor_id_ordered[1] = 0;
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211 }
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212 if(stateUsed->lifeData.ppO2Sensor_bar[2] > stateUsed->lifeData.ppO2Sensor_bar[sensor_id_ordered[1]])
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213 {
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214 sensor_id_ordered[2] = 2;
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215 }
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216 else
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217 {
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218 sensor_id_ordered[2] = sensor_id_ordered[1];
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219 if(stateUsed->lifeData.ppO2Sensor_bar[2] > stateUsed->lifeData.ppO2Sensor_bar[sensor_id_ordered[0]])
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220 {
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221 sensor_id_ordered[1] = 2;
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222 }
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223 else
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224 {
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225 sensor_id_ordered[1] = sensor_id_ordered[0];
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226 sensor_id_ordered[0] = 2;
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227 }
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228 }
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229
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230 difference[0] = stateUsed->lifeData.ppO2Sensor_bar[sensor_id_ordered[1]]- stateUsed->lifeData.ppO2Sensor_bar[sensor_id_ordered[0]];
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231 difference[1] = stateUsed->lifeData.ppO2Sensor_bar[sensor_id_ordered[2]]- stateUsed->lifeData.ppO2Sensor_bar[sensor_id_ordered[1]];
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232
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233 if((difference[0] > difference[1]) && (difference[0] > 0.15)) /* was 15cBar ==> 0.15 bar */
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234 {
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235 switch(sensor_id_ordered[0])
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236 {
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237 case 0:
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238 *outOfBouds1 = 1;
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239 break;
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240 case 1:
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241 *outOfBouds2 = 1;
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242 break;
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243 case 2:
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244 *outOfBouds3 = 1;
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245 break;
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246 }
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247 }
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248 else
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249 if((difference[0] < difference[1]) && (difference[1] > 0.15))
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250 {
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251 switch(sensor_id_ordered[2])
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252 {
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253 case 0:
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254 *outOfBouds1 = 1;
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255 break;
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256 case 1:
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257 *outOfBouds2 = 1;
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258 break;
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259 case 2:
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260 *outOfBouds3 = 1;
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261 break;
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262 }
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263 }
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264 }
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265
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266 }
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267
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268
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269 uint8_t get_ppO2SensorWeightedResult_cbar(void)
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270 {
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271 int8_t sensorOutOfBound[3];
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272 uint16_t result = 0;
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273 uint8_t count = 0;
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274 uint8_t retVal = 0;
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275
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276 test_O2_sensor_values_outOfBounds(&sensorOutOfBound[0], &sensorOutOfBound[1], &sensorOutOfBound[2]);
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277
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278 for(int i=0;i<3;i++)
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279 {
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280 if(!sensorOutOfBound[i])
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281 {
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282 result += stateUsed->lifeData.ppO2Sensor_bar[i] * 100.0; /* convert centibar used by HUB */
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283 count++;
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284 }
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285 }
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286 if(count == 0) // all sensors out of bounds!
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287 {
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288 set_warning_fallback();
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289 }
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290 else
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291 {
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292 retVal = (uint8_t)(result / count);
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293 }
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294 return retVal;
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295 }
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296
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297
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298 void tCCR_init(void)
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299 {
449
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300 uint8_t loop;
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301
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302 StartListeningToUART_HUD = 1;
449
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303
91a939915bfa Added initialization of bottle sensor data age counter
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304 SDiveState* pDiveData = stateRealGetPointerWrite();
91a939915bfa Added initialization of bottle sensor data age counter
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305 for(loop=0;loop<(2*NUM_GASES+1);loop++)
91a939915bfa Added initialization of bottle sensor data age counter
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306 {
91a939915bfa Added initialization of bottle sensor data age counter
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307 pDiveData->lifeData.bottle_bar_age_MilliSeconds[loop] = BOTTLE_SENSOR_TIMEOUT;
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308 }
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309 }
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310
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311
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312 /* after 3 seconds without update from HUD
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313 * data is considered old
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314 */
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315 void tCCR_tick(void)
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316 {
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317 if(settingsGetPointer()->ppo2sensors_source == O2_SENSOR_SOURCE_OPTIC)
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318 {
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319 if(HUDTimeoutCount < 3 * 10)
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320 HUDTimeoutCount++;
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321 else
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322 {
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323 data_old__lost_connection_to_HUD = 1;
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324 if(HUDTimeoutCount < 20 * 10)
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325 HUDTimeoutCount++;
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326 else
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327 tCCR_fallbackToFixedSetpoint();
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328 }
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329 }
38
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330 }
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331
322
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332 void tCCR_SetRXIndication(void)
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333 {
31e471d60797 Added start of frame detection for HUD data
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334 static uint8_t floatingRXCount = 0;
31e471d60797 Added start of frame detection for HUD data
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335
31e471d60797 Added start of frame detection for HUD data
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diff changeset
336 if((UartIR_HUD_Handle.RxXferSize == HUD_RX_FRAME_LENGTH) || (UartIR_HUD_Handle.RxXferSize == HUD_RX_FRAME_LENGTH - 1)) /* we expected a complete frame */
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337 {
31e471d60797 Added start of frame detection for HUD data
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338 UartReadyHUD = SET;
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339 LastReceivedTick_HUD = HAL_GetTick();
31e471d60797 Added start of frame detection for HUD data
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340 floatingRXCount = 0;
31e471d60797 Added start of frame detection for HUD data
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diff changeset
341 }
31e471d60797 Added start of frame detection for HUD data
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342 else /* follow up of error handling */
31e471d60797 Added start of frame detection for HUD data
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343 {
31e471d60797 Added start of frame detection for HUD data
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344 if(time_elapsed_ms(LastReceivedTick_HUD, HAL_GetTick()) > HUD_RX_FRAME_BREAK_MS) /* Reception took a while => frame start detected */
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345 {
31e471d60797 Added start of frame detection for HUD data
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346 HAL_UART_Receive_IT(&UartIR_HUD_Handle, &receiveHUDraw[1], 14); /* We have already the first byte => get the missing 14 */
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347 }
31e471d60797 Added start of frame detection for HUD data
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diff changeset
348 else
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diff changeset
349 {
31e471d60797 Added start of frame detection for HUD data
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350 if(floatingRXCount++ < HUD_BABBLING_IDIOT)
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351 {
31e471d60797 Added start of frame detection for HUD data
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352 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, 1); /* Start polling of incoming bytes */
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353 }
31e471d60797 Added start of frame detection for HUD data
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354 else /* Significant amount of data comming in without break => disable input */
31e471d60797 Added start of frame detection for HUD data
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355 { /* by not reactivation HUD RX, no recovery fromthis state */
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356 stateUsedWrite->diveSettings.ppo2sensors_deactivated = 0x07; /* Display deactivation */
31e471d60797 Added start of frame detection for HUD data
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357 }
31e471d60797 Added start of frame detection for HUD data
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diff changeset
358 }
31e471d60797 Added start of frame detection for HUD data
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diff changeset
359 }
31e471d60797 Added start of frame detection for HUD data
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diff changeset
360
31e471d60797 Added start of frame detection for HUD data
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diff changeset
361 }
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362
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363 void tCCR_restart(void)
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364 {
322
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365 HAL_UART_AbortReceive_IT(&UartIR_HUD_Handle); /* Called by the error handler. RX will be restarted by control function */
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366 StartListeningToUART_HUD = 1;
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367 }
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368
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369
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370 void tCCR_control(void)
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371 {
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372 uint16_t checksum = 0;
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373 #ifdef ENABLE_BOTTLE_SENSOR
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374 SDiveState *pLivedata = stateRealGetPointerWrite();
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375 #endif
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376
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377 if((UartReadyHUD == RESET) && StartListeningToUART_HUD && (time_elapsed_ms(LastReceivedTick_HUD, HAL_GetTick()) > HUD_RX_START_DELAY_MS))
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378 {
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379 StartListeningToUART_HUD = 0;
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380 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, HUD_RX_FRAME_LENGTH);
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381 }
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382
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383 if(UartReadyHUD == SET)
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384 {
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385 UartReadyHUD = RESET;
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386 StartListeningToUART_HUD = 1;
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387
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388 /* check if received package is valid */
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389 for(int i=0;i<13;i++)
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390 {
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391 checksum += receiveHUDraw[i];
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392 }
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393 receiveHUD[!boolHUDdata].checksum = receiveHUDraw[13] + (256 * receiveHUDraw[14]);
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394 if(checksum == receiveHUD[!boolHUDdata].checksum)
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395 {
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396 #ifdef ENABLE_BOTTLE_SENSOR
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397 if(receiveHUDraw[0] == 0xA5) /* code for pressure sensor */
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398 {
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399 pLivedata->lifeData.bottle_bar[pLivedata->lifeData.actualGas.GasIdInSettings] = receiveHUDraw[10];
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400 pLivedata->lifeData.bottle_bar_age_MilliSeconds[pLivedata->lifeData.actualGas.GasIdInSettings] = 0;
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401 }
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402 else
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403 #endif
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404 /* handle O2 sensor data */
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405 {
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406 memcpy(&receiveHUD[!boolHUDdata], receiveHUDraw, 11);
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407 receiveHUD[!boolHUDdata].battery_voltage_mV = receiveHUDraw[11] + (256 * receiveHUDraw[12]);
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408 }
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409
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410 boolHUDdata = !boolHUDdata;
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411 HUDTimeoutCount = 0;
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412 data_old__lost_connection_to_HUD = 0;
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413 }
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414 else
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415 {
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416 if(data_old__lost_connection_to_HUD) /* we lost connection, maybe due to RX shift => start single byte read to resynchronize */
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417 {
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418 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, 1);
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419 StartListeningToUART_HUD = 0;
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420 }
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421 }
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422 memset(receiveHUDraw,0,sizeof(receiveHUDraw));
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423 }
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424 }
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425
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426 #endif
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427 /* Private functions ---------------------------------------------------------*/
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428
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429 static void tCCR_fallbackToFixedSetpoint(void)
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430 {
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431 if((stateUsed->mode == MODE_DIVE) && (stateUsed->diveSettings.diveMode == DIVEMODE_CCR) && (stateUsed->diveSettings.CCR_Mode == CCRMODE_Sensors) && (stateUsed->diveSettings.fallbackOption))
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432 {
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433 uint8_t setpointCbar, actualGasID;
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434
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435 setpointCbar = stateUsed->diveSettings.setpoint[1].setpoint_cbar;
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436 stateUsedWrite->diveSettings.CCR_Mode = CCRMODE_FixedSetpoint;
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437
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438 actualGasID = stateUsed->lifeData.actualGas.GasIdInSettings;
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439 setActualGas_DM(&stateUsedWrite->lifeData,actualGasID,setpointCbar);
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440
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441 set_warning_fallback();
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442 }
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443 }