annotate Discovery/Src/bonexConnect.c @ 82:a6f0881074a4 kittz

+i2c analog noise filtering spi more stable
author Dmitry Romanov <kitt@bk.ru>
date Tue, 20 Nov 2018 12:08:19 +0300
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1 /**
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2 ******************************************************************************
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3 * @copyright heinrichs weikamp gmbh
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4 * @file bonexConnect.c
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5 * @author heinrichs weikamp gmbh
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6 * @date 29-Sept-2015
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7 * @version 0.2
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8 * @since 01-Okt-2015
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9 * @brief connect to bluetooth LTE of BonexInfoSystem
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10 * @bug
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11 * @warning
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12 @verbatim
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13 ==============================================================================
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14
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15 BLE:
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16 first of all:
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17 AT+LEROLE=1 // set BLE role of the device to Central
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18 it is invisible and does not accept incoming BLE connections
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19
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20 then:
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21 AT+LESCAN
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22 AT+LENAME=<bdaddr> request remote device name over BLE
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23 ATD <brad>,TIO Initiate Bluetooth Link (for outgoing connections)
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24
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25
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26 ==============================================================================
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27 @endverbatim
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28 ******************************************************************************
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29 * @attention
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30 *
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31 * <h2><center>&copy; COPYRIGHT(c) 2015 heinrichs weikamp</center></h2>
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32 *
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33 ******************************************************************************
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34 */
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35
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36 #include "bonexConnect.h"
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37
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38 #ifndef BONEXBLUETOOTH
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39 void bonexControl(void)
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40 {
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41 return;
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42 }
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43 void bC_setConnectRequest(void)
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44 {
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45 return;
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46 }
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47 uint8_t bC_getStatus(void)
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48 {
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49 return BC_DISCONNECTED;
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50 }
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51 uint8_t bC_getName(char *name)
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52 {
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53 *name = 0;
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54 return 0;
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55 }
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56 uint8_t bC_getData(float *watt, float *temperature, uint16_t *drehzahl, uint8_t *residualcapacity)
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57 {
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58 *watt = 0;
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59 *temperature = 0;
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60 *drehzahl = 0;
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61 *residualcapacity = 0;
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62
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63 return BC_DISCONNECTED;
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64 }
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65
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66 #else
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67
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68
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69 /* Includes ------------------------------------------------------------------*/
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70 #include "settings.h"
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71 #include "ostc.h"
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72 #include "string.h"
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73 #include "data_central.h"
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74
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75
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76
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77 union tempFloat16{
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78 uint16_t u16;
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79 uint8_t u8[2];
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80 } temp;
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81
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82 /* Private function prototypes -----------------------------------------------*/
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83 void bC_connect(void);
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84 uint8_t bC_connect_sub_Search(void);
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85 uint8_t bC_connect_sub_Connect(void);
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86 void bC_call(void);
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87 void bC_evaluateData(void);
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88
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89
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90 /* Private variables with external access ------------------------------------*/
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91 uint8_t status = 0;
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92 uint8_t searchrequest = 0;
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93 char nameOfScooter[20];
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94 uint8_t dataBuffer[9];
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95 uint8_t StartListeningToUARTscooter = 1;
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96
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97 float scooterWattstunden = 0;
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98 float scooterTemperature = 0;
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99 uint8_t scooterRestkapazitaet = 0;
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100 uint16_t scooterDrehzahl = 0;
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101
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102 /* Exported functions --------------------------------------------------------*/
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103
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104 uint8_t bC_evaluateData(void)
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105 {
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106 for
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107 pStateReal->lifeData.wireless_data[i].data[j]
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108
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109 }
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110
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111
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112 uint8_t bC_getData(float *watt, float *temperature, uint16_t *drehzahl, uint8_t *residualcapacity)
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113 {
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114 if(watt)
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115 *watt = scooterWattstunden;
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116 if(temperature)
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117 *temperature = scooterTemperature;
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118 if(drehzahl)
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119 *drehzahl = scooterDrehzahl;
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120 if(residualcapacity)
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121 *residualcapacity = scooterRestkapazitaet;
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122 return status;
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123 }
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124
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125 uint8_t bC_getStatus(void)
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126 {
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127 return status;
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128 }
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129
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130
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131 void bC_setConnectRequest(void)
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132 {
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133 searchrequest = 1;
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134 }
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135
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136
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137 uint8_t bC_getName(char *name)
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138 {
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139 if(status != BC_CONNECTED)
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140 *name = 0;
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141
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142 strncpy(name,nameOfScooter,20);
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143 name[19] = 0;
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144 return strlen(name);
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145 }
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146
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147 /*
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148 void bonexControl(void)
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149 {
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150 static uint32_t time = 0;
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151
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152 if(settingsGetPointer()->scooterControl == 0)
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153 {
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154 status = BC_DISCONNECTED;
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155 time = 0;
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156 return;
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157 }
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158
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159 if(settingsGetPointer()->bluetoothActive == 0)
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160 {
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161 status = BC_DISCONNECTED;
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162 time = 0;
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163 return;
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164 }
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165
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166 if(searchrequest)
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167 {
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168 searchrequest = 0;
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169 // maybe we have to disconnect first?
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170 bC_connect();
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171 StartListeningToUARTscooter = 1;
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172 time = 0;
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173 return;
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174 }
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175
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176 if(status != BC_CONNECTED)
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177 {
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178 time = 0;
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179 return;
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180 }
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181
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182 if(UartReady == SET)
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183 {
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184 UartReady = RESET;
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185 StartListeningToUARTscooter = 1;
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186 bC_evaluateData();
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187 return;
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188 }
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189
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190 if(time_elapsed_ms(time, HAL_GetTick()) < 1000)
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191 {
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192 return;
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193 }
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194 */
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195 // test
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196 /*
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197 const char request[4] = {0xA3, 5, 0, 0xA6};
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198 HAL_UART_Transmit(&UartHandle, (uint8_t*)request, 4, 1000);
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199 time = HAL_GetTick();
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200 return;
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201 */
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202 if((UartReady == RESET) && StartListeningToUARTscooter)
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203 {
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204 bC_call();
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205 time = HAL_GetTick();
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206 }
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207 }
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208
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209
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210 /* Private functions ---------------------------------------------------------*/
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211
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212 void BONEX_to_16bit(uint16_t *dataOutUint16, int16_t *dataOutInt16, uint8_t *dataIn)
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213 {
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214 union tempU16{
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215 int16_t i16;
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216 uint16_t u16;
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217 uint8_t u8[2];
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218 } temp;
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219
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220 temp.u8[0] = dataIn[0];
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221 temp.u8[1] = dataIn[1];
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222
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223 if(dataOutUint16)
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224 *dataOutUint16 = temp.u16;
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225
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226 if(dataOutInt16)
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227 *dataOutInt16 = temp.i16;
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228 }
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229
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230 void bC_evaluateData(void)
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231 {
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232 uint8_t crc = dataBuffer[0];
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233 for(int i=1;i<=8;i++)
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234 crc ^= dataBuffer[i];
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235
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236 if(crc != 0)
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237 return;
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238
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239 uint16_t watt;
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240 int16_t temperatureL;
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241
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242 BONEX_to_16bit(&watt,0, &dataBuffer[1]);
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243 BONEX_to_16bit(0,&temperatureL, &dataBuffer[4]);
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244 BONEX_to_16bit(&scooterDrehzahl,0, &dataBuffer[6]);
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245
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246 // scooterWattstunden = ((float)(dataBuffer[3]))/100;
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247 // scooterWattstunden += watt;
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248 scooterWattstunden = watt; // neu ohne milliWattSekunden hw 160113
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249 scooterRestkapazitaet = dataBuffer[3];
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250 scooterTemperature = ((float)(temperatureL))/10;
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251
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252 /*
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253 aTxBuffer[0] = uartSendNext; // 0 UINT8_T
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254 BONEX_16to8(&aTxBuffer[1],&WattStunden); // 1+2 LSB first UINT16_T
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255 alt: aTxBuffer[3] = (uint8_t)(milliWattSekunden/36000);// 3 UINT8_T
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256 neu: aTxBuffer[3] = (uint8_t)(RestKapazitaet); // 3 UINT8_T
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257 BONEX_16to8(&aTxBuffer[4],&TemperaturLStufe); // 4+5 LSB first INT16_T
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258 BONEX_16to8(&aTxBuffer[6],&DrehzahlNeu); // 6+7 LSB first UINT16_T
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259 crc UINT8_T
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260 */
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261 }
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262
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263 void bC_call(void)
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264 {
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265 const char request[4] = {0xA3, 1, 0, 0xA2};
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266 uint8_t answer = BONEX_OK;
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267
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268 answer = HAL_UART_Transmit(&UartHandle, (uint8_t*)request, 4, 1000);
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269 if(answer != HAL_OK)
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270 return;
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271
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272 StartListeningToUARTscooter = 0;
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273 answer = HAL_UART_Receive_IT(&UartHandle, dataBuffer, 9);
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274 }
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275
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276
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277 void bC_connect(void)
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278 {
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279 status = BC_SEARCHING;
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280 uint8_t answer = BONEX_OK;
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281
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282 answer = BONEX_OK;
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283 if(settingsGetPointer()->scooterDeviceAddress[0] == 0)
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284 {
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285 answer = bC_connect_sub_Search();
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286 }
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287
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288 if(answer == BONEX_OK)
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289 {
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290 answer = bC_connect_sub_Connect();
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291 }
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292
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293 if(answer == BONEX_OK)
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294 status = BC_CONNECTED;
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295 else
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296 status = BC_DISCONNECTED;
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297 }
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298
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299
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300 uint8_t bC_connect_sub_Search(void)
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301 {
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302 uint8_t answer = BONEX_OK;
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303 char buffer[256];
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304 uint8_t bufferPtr = 0;
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305 uint8_t length;
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306 uint32_t time;
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307 char *startOfBONEXString;
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308 char *startOfRemoteDeviceAddress;
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309 uint8_t okayNotSend;
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310
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311
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312 strncpy(buffer,"AT+BINQ\r",256);
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313 length = strlen(buffer);
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314 answer = HAL_UART_Transmit(&UartHandle, (uint8_t*)buffer, length, 1000);
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315 time = HAL_GetTick();
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316 bufferPtr = 0;
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317 okayNotSend = 6;
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318 while((time_elapsed_ms(time, HAL_GetTick()) < 20000) && (bufferPtr < 255) && (okayNotSend))
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319 {
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320 answer = HAL_UART_Receive(&UartHandle, (uint8_t*)&buffer[bufferPtr], 1, 1000);
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321 if(answer == HAL_OK)
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322 {
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323 switch(okayNotSend)
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324 {
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325 case 1:
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326 if(buffer[bufferPtr] == '\n')
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327 {
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328 okayNotSend = 0;
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329 break;
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330 }
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331 case 2:
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332 if(buffer[bufferPtr] == '\r')
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333 {
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334 okayNotSend = 1;
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335 break;
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336 }
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337 case 3:
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338 if(buffer[bufferPtr] == 'K')
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339 {
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340 okayNotSend = 2;
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341 break;
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342 }
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343 case 4:
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344 if(buffer[bufferPtr] == 'O')
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345 {
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346 okayNotSend = 3;
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347 break;
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348 }
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349 case 5:
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350 if(buffer[bufferPtr] == '\n')
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351 {
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352 okayNotSend = 4;
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353 break;
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354 }
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355 case 6:
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356 if(buffer[bufferPtr] == '\r')
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357 {
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358 okayNotSend = 5;
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359 break;
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360 }
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361 default:
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362 okayNotSend = 6;
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363 break;
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364 }
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365 bufferPtr++;
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366 }
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367 }
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368
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369 buffer[bufferPtr] = 0; // just for safety of search routines
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370 length = bufferPtr;
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371
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372 if(length < 1)
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373 return BONEX_NOTFOUND;
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374
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375 startOfBONEXString = strstr(buffer,"BONEX");
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376
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377 if(!startOfBONEXString)
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378 return BONEX_NOTFOUND;
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379
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380
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381 // copy to scooterDeviceAddress
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382 startOfRemoteDeviceAddress = startOfBONEXString - 1;
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383 while(startOfRemoteDeviceAddress >= buffer)
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384 {
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385 if(*startOfRemoteDeviceAddress == '\r')
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386 break;
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387 startOfRemoteDeviceAddress--;
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388 }
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389 /*
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390 startOfBONEXString = 0; // for strrchr
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391
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392 startOfRemoteDeviceAddress = strrchr(buffer, '\r');
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393 */
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394 // first in list?
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395 if(!startOfRemoteDeviceAddress)
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396 startOfRemoteDeviceAddress = buffer;
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397 else
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398 {
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399 startOfRemoteDeviceAddress += 1;
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400 if(*startOfRemoteDeviceAddress == '\n')
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401 startOfRemoteDeviceAddress += 1;
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402 }
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403 strncpy(settingsGetPointer()->scooterDeviceAddress, startOfRemoteDeviceAddress, 12);
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404
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405 for(int i=0;i<19;i++)
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406 {
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407 if((startOfBONEXString[i] == 0) || (startOfBONEXString[i] == '\r'))
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408 {
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409 settingsGetPointer()->scooterDeviceName[i] = 0;
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410 break;
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411 }
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412 else
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413 settingsGetPointer()->scooterDeviceName[i] = startOfBONEXString[i];
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414 }
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415 return BONEX_OK;
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416 }
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417
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418
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419 uint8_t bC_connect_sub_Connect(void)
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420 {
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421 uint8_t answer = BONEX_OK;
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422 char buffer2[256];
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423 uint8_t bufferPtr = 0;
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424 uint8_t length;
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425 uint32_t time;
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426
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427 strncpy(buffer2,"ATD ",256);
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428 length = strlen(buffer2);
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429 strncpy(&buffer2[length], settingsGetPointer()->scooterDeviceAddress, 12);
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430 length += 12;
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431 buffer2[length++] = '\r';
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432 buffer2[length++] = 0;
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433 answer = HAL_UART_Transmit(&UartHandle, (uint8_t*)buffer2, length, 1000);
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434
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435 time = HAL_GetTick();
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436 bufferPtr = 0;
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437 while((time_elapsed_ms(time, HAL_GetTick()) < 5000) && (bufferPtr < 255))
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438 {
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439 answer = HAL_UART_Receive(&UartHandle, (uint8_t*)&buffer2[bufferPtr], 1, 1000);
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440 if(answer == HAL_OK)
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441 bufferPtr++;
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442 }
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443
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444 if(bufferPtr < 7)
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445 return BONEX_NOTFOUND;
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446
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447 if(strstr(buffer2,"CONNECT"))
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448 {
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449 strncpy(nameOfScooter, settingsGetPointer()->scooterDeviceName, 19);
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450 nameOfScooter[19] = 0;
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451 return BONEX_OK;
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452 }
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453 else
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454 return BONEX_NOCONNECT;
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455 }
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456
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457 #endif // BONEXBLUETOOTH
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458
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459
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460 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/