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annotate Small_CPU/Src/uartProtocol_Sentinel.c @ 949:c6b858f2e025 Evo_2_23

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GNSS UTC in Date-Time menu: The UTC time provided by the gnss module is not shown in the date-time settings menu. If a valid time signal is available then the OSTC RTC may be set to it by selecting the UTC menu entry. The time zone has to be selected manually. This is possible using a separate edit line.
author Ideenmodellierer
date Sun, 22 Dec 2024 21:19:21 +0100
parents effadaa3a1f7
children
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rev   line source
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1 /**
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2 ******************************************************************************
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3 * @file uartProtocol_Co2.c
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4 * @author heinrichs weikamp gmbh
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5 * @version V0.0.1
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6 * @date 15-Jan-2024
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7 * @brief Interface functionality to read data from Sentinel rebreather
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8 *
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9 @verbatim
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10
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11
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12 @endverbatim
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13 ******************************************************************************
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14 * @attention
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15 *
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16 * <h2><center>&copy; COPYRIGHT(c) 2024 heinrichs weikamp</center></h2>
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17 *
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18 ******************************************************************************
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19 */
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20 /* Includes ------------------------------------------------------------------*/
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21
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22 #include <string.h>
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23 #include <uartProtocol_Sentinel.h>
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24 #include "uart.h"
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25 #include "externalInterface.h"
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26
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27
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28 #ifdef ENABLE_SENTINEL_MODE
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29 static uint8_t SentinelConnected = 0; /* Binary indicator if a sensor is connected or not */
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30 static receiveStateSentinel_t rxState = SENTRX_Ready;
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31
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32 extern sUartComCtrl Uart1Ctrl;
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33
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34 void ConvertByteToHexString(uint8_t byte, char* str)
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35 {
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36 uint8_t worker = 0;
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37 uint8_t digit = 0;
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38 uint8_t digitCnt = 1;
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39
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40 worker = byte;
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41 while((worker!=0) && (digitCnt != 255))
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42 {
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43 digit = worker % 16;
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44 if( digit < 10)
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45 {
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46 digit += '0';
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47 }
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48 else
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49 {
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50 digit += 'A' - 10;
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51 }
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52 str[digitCnt--]= digit;
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53 worker = worker / 16;
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54 }
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55 }
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56
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57 void uartSentinel_Control(void)
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58 {
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59 uint8_t activeSensor = externalInterface_GetActiveUartSensor();
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60 uartSentinelStatus_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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61
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62 if(localComState == UART_SENTINEL_INIT)
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63 {
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64 SentinelConnected = 0;
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65 UART_StartDMA_Receiption(&Uart1Ctrl);
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66 localComState = UART_SENTINEL_IDLE;
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67 }
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68 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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69 }
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70
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71 void uartSentinel_ProcessData(uint8_t data)
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72 {
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73 static uint8_t dataType = 0;
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74 static uint32_t dataValue[3];
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75 static uint8_t dataValueIdx = 0;
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76
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77 static uint8_t checksum = 0;
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78 static char checksum_str[]="00";
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79
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80 uint8_t activeSensor = externalInterface_GetActiveUartSensor();
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81 uartSentinelStatus_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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82
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83 switch(rxState)
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84 {
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85 case SENTRX_Ready: if((data >= 'a') && (data <= 'z'))
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86 {
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87 rxState = SENTRX_DetectStart;
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88 checksum = 0;
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89 }
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90 break;
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91
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92 case SENTRX_DetectStart: checksum += data;
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93 if(data == '1')
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94 {
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95 rxState = SENTRX_SelectData;
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96 dataType = 0xFF;
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97
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98 }
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99 else
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100 {
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101 rxState = SENTRX_Ready;
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102 }
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103 break;
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104
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105 case SENTRX_SelectData: checksum += data;
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106 switch(data)
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107 {
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108 case 'T': dataType = data;
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109 break;
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110 case '0': if(dataType != 0xff)
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111 {
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112 rxState = SENTRX_Data0;
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113 dataValueIdx = 0;
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114 dataValue[0] = 0;
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115
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116 }
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117 else
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118 {
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119 rxState = SENTRX_Ready;
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120 }
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121 break;
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122 default: rxState = SENTRX_Ready;
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123 }
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124 break;
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125
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126 case SENTRX_Data0:
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127 case SENTRX_Data1:
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128 case SENTRX_Data2:
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129 case SENTRX_Data4:
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130 case SENTRX_Data5:
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131 case SENTRX_Data6:
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132 case SENTRX_Data8:
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133 case SENTRX_Data9:
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134 case SENTRX_Data10: checksum += data;
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135 if((data >= '0') && (data <= '9'))
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136 {
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137 dataValue[dataValueIdx] = dataValue[dataValueIdx] * 10 + (data - '0');
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138 rxState++;
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139 }
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140 else
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141 {
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142 rxState = SENTRX_Ready;
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143 }
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144 break;
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145
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146 case SENTRX_Data3:
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147 case SENTRX_Data7: checksum += data;
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148 if(data == '0')
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149 {
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150 rxState++;
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151 dataValueIdx++;
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152 dataValue[dataValueIdx] = 0;
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153 }
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154 else
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155 {
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156 rxState = SENTRX_Ready;
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157 }
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158 break;
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159 case SENTRX_Data11: rxState = SENTRX_DataComplete;
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160 ConvertByteToHexString(checksum,checksum_str);
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161 if(data == checksum_str[0])
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162 {
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163 rxState = SENTRX_DataComplete;
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164 }
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165 else
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166 {
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167 rxState = SENTRX_Ready;
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168 }
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169
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170 break;
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171
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172 case SENTRX_DataComplete: if(data == checksum_str[1])
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173 {
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174 setExternalInterfaceChannel(0,(float)(dataValue[0] / 10.0));
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175 setExternalInterfaceChannel(1,(float)(dataValue[1] / 10.0));
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176 setExternalInterfaceChannel(2,(float)(dataValue[2] / 10.0));
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177 SentinelConnected = 1;
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178 localComState = UART_SENTINEL_OPERATING;
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179 }
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180 rxState = SENTRX_Ready;
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181 break;
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182
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183
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184 default: rxState = SENTRX_Ready;
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185 break;
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186
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187 }
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188 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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189 }
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190
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191 uint8_t uartSentinel_isSensorConnected()
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192 {
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193 return SentinelConnected;
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194 }
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195
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196 #endif
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197