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annotate Small_CPU/Src/uartProtocol_O2.c @ 978:57b82ae99969 Evo_2_23

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Remove sensor index for CO2 sensors: The is only one CO2 sensor supported at a time => no need to use index numbers. This avoids strange indexing (CO3) as well.
author Ideenmodellierer
date Thu, 30 Jan 2025 21:26:38 +0100 (2 months ago)
parents 0b81ac558e89
children
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1 /**
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2 ******************************************************************************
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3 * @file uartProtocol_O2.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 16-Jun-2023
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7 * @brief Interface functionality to external, UART based O2 sensors
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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) 2023 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 "uart.h"
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24 #include "uartProtocol_O2.h"
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25 #include "externalInterface.h"
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26
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27
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28 const uint8_t errorStr[] = "#ERRO";
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29 static uint32_t lastReceiveTick = 0;
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30 static uartO2RxState_t rxState = O2RX_IDLE;
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31 static uint8_t digO2Connected = 0; /* Binary indicator if a sensor is connected or not */
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32 static SSensorDataDiveO2 tmpSensorDataDiveO2; /* intermediate storage for additional sensor data */
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33
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34 static uint8_t activeSensor = 0;
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35 static uint8_t respondErrorDetected = 0;
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36
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37 void uartO2_InitData()
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38 {
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39 digO2Connected = 0;
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40 }
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41
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42 void uartO2_SetupCmd(uint8_t O2State, uint8_t *cmdString, uint8_t *cmdLength)
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43 {
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44 switch (O2State)
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45 {
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46 case UART_O2_CHECK: *cmdLength = snprintf((char*)cmdString, 10, "#LOGO");
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47 break;
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48 case UART_O2_REQ_INFO: *cmdLength = snprintf((char*)cmdString, 10, "#VERS");
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49 break;
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50 case UART_O2_REQ_ID: *cmdLength = snprintf((char*)cmdString, 10, "#IDNR");
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51 break;
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52 case UART_O2_REQ_O2: *cmdLength = snprintf((char*)cmdString, 10, "#DOXY");
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53 break;
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54 case UART_O2_REQ_RAW: *cmdLength = snprintf((char*)cmdString, 10, "#DRAW");
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55 break;
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56 default: *cmdLength = 0;
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57 break;
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58 }
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59 if(*cmdLength != 0)
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60 {
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61 cmdString[*cmdLength] = 0x0D;
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62 *cmdLength = *cmdLength + 1;
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63 cmdString[*cmdLength] = 0x0A;
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64 *cmdLength = *cmdLength + 1;
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65 cmdString[*cmdLength] = 0;
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66 *cmdLength = *cmdLength + 1;
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67 }
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68 }
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69
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70 static uint8_t cmdLength = 0;
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71 static uint8_t cmdString[10];
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72
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73 void uartO2_Control(void)
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74 {
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75 static uint8_t lastComState = 0;
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76 static uint8_t lastActiveSensor = 0xFF;
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77
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78 uint8_t *pmap = externalInterface_GetSensorMapPointer(0);
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79 uint8_t activeSensor = externalInterface_GetActiveUartSensor();
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80
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81 uartO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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82 externalInterface_GetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET, (uint8_t*)&tmpSensorDataDiveO2);
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83
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84
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85 if(lastActiveSensor != activeSensor)
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86 {
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87 lastActiveSensor = activeSensor;
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88 if(localComState != UART_O2_ERROR)
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89 {
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90 lastComState = localComState;
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91 }
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92 else
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93 {
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94 lastComState = UART_O2_IDLE;
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95 }
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96 if(localComState == UART_O2_CHECK)
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97 {
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98 localComState = UART_O2_IDLE;
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99 }
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100 UART_ReadData(SENSOR_DIGO2, 1); /* flush buffer */
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101 }
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102
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103 if(localComState == UART_O2_INIT)
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104 {
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105 memset((char*) &tmpSensorDataDiveO2, 0, sizeof(tmpSensorDataDiveO2));
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106 externalInterface_SetSensorData(0xFF,(uint8_t*)&tmpSensorDataDiveO2);
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107
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108 localComState = UART_O2_CHECK;
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109 lastComState = UART_O2_CHECK;
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110 UART_ReadData(SENSOR_DIGO2, 1); /* flush buffer */
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111 uartO2_SetupCmd(localComState,cmdString,&cmdLength);
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112 UART_SendCmdString(cmdString);
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113 if(pmap[EXT_INTERFACE_SENSOR_CNT-1] != SENSOR_MUX) /* stand alone mode => add some time for sensor com setup */
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114 {
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115 HAL_Delay(80);
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116 }
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117 rxState = O2RX_CONFIRM;
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118 respondErrorDetected = 0;
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119 digO2Connected = 0;
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120 }
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121 else
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122 {
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123 if(localComState == UART_O2_ERROR)
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124 {
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125 localComState = lastComState;
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126 }
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127 lastComState = localComState;
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128 if(localComState == UART_O2_IDLE) /* cyclic request of o2 value */
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129 {
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130 if((activeSensor != MAX_MUX_CHANNEL) && (tmpSensorDataDiveO2.sensorId == 0))
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131 {
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132 localComState = UART_O2_REQ_ID;
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133 }
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134 else
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135 {
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136 localComState = UART_O2_REQ_RAW;
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137 }
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138 }
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139 rxState = O2RX_CONFIRM;
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140 uartO2_SetupCmd(localComState,cmdString,&cmdLength);
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141 UART_SendCmdString(cmdString);
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142 if(localComState == UART_O2_CHECK)
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143 {
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144 localComState = UART_O2_IDLE; /* confirmation seems to be send after blinking => the response could be longer as the channel switch time => ignore */
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145 }
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146 }
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147 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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148 }
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149
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150 void uartO2_ProcessData(uint8_t data)
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151 {
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152 static uint8_t cmdReadIndex = 0;
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153 static uint8_t errorReadIndex = 0;
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154 static char tmpRxBuf[30];
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155 static uint8_t tmpRxIdx = 0;
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156
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157 uint32_t tmpO2 = 0;
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158 uint32_t tmpData = 0;
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159
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160 uint32_t tick = HAL_GetTick();
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161
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162 uartO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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163
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164 lastReceiveTick = tick;
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165 switch(rxState)
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166 {
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167 case O2RX_CONFIRM: if(data == '#')
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168 {
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169 cmdReadIndex = 0;
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170 errorReadIndex = 0;
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171 }
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172 if(errorReadIndex < sizeof(errorStr)-1)
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173 {
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174 if(data == errorStr[errorReadIndex])
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175 {
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176 errorReadIndex++;
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177 }
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178 else
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179 {
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180 errorReadIndex = 0;
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181 }
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182 }
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183 else
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184 {
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185 respondErrorDetected = 1;
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186 errorReadIndex = 0;
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187 if(localComState != UART_O2_IDLE)
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188 {
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189 localComState = UART_O2_ERROR;
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190 }
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191 }
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192 if(data == cmdString[cmdReadIndex])
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193 {
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194 cmdReadIndex++;
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195 if(cmdReadIndex == cmdLength - 3)
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196 {
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197 errorReadIndex = 0;
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198 if((activeSensor == MAX_MUX_CHANNEL))
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199 {
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200 if(respondErrorDetected)
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201 {
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202 digO2Connected = 0; /* the multiplexer mirrors the incoming message and does not generate an error information => no mux connected */
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203 }
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204 else
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205 {
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206 digO2Connected = 1;
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207 }
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208 }
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209 else /* handle sensors which should respond with an error message after channel switch */
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210 {
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211 digO2Connected = 1;
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212 }
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213 tmpRxIdx = 0;
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214 memset((char*) tmpRxBuf, 0, sizeof(tmpRxBuf));
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215 cmdReadIndex = 0;
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216 switch (localComState)
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217 {
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218 case UART_O2_CHECK: localComState = UART_O2_IDLE;
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219 rxState = O2RX_IDLE;
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220 break;
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221 case UART_O2_REQ_ID: rxState = O2RX_GETNR;
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222 break;
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223 case UART_O2_REQ_INFO: rxState = O2RX_GETTYPE;
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224 break;
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225 case UART_O2_REQ_RAW:
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226 case UART_O2_REQ_O2: rxState = O2RX_GETO2;
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227 break;
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228 default: localComState = UART_O2_IDLE;
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229 rxState = O2RX_IDLE;
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230 break;
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231 }
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232 }
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233 }
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234 else
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235 {
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236 cmdReadIndex = 0;
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237 }
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238 break;
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239
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240 case O2RX_GETSTATUS:
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241 case O2RX_GETTEMP:
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242 case O2RX_GETTYPE:
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243 case O2RX_GETVERSION:
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244 case O2RX_GETCHANNEL:
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245 case O2RX_GETSUBSENSORS:
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246 case O2RX_GETO2:
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247 case O2RX_GETNR:
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248 case O2RX_GETDPHI:
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249 case O2RX_INTENSITY:
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250 case O2RX_AMBIENTLIGHT:
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251 case O2RX_PRESSURE:
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252 case O2RX_HUMIDITY:
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253 if(data != 0x0D)
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254 {
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255 if(data != ' ') /* the following data entities are placed within the data stream => no need to store data at the end */
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256 {
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257 tmpRxBuf[tmpRxIdx++] = data;
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258 }
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259 else
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260 {
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261 if(tmpRxIdx != 0)
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262 {
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263 switch(rxState)
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264 {
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265 case O2RX_GETCHANNEL: StringToInt(tmpRxBuf,&tmpData);
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266 rxState = O2RX_GETVERSION;
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267 break;
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268 case O2RX_GETVERSION: StringToInt(tmpRxBuf,&tmpData);
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269 rxState = O2RX_GETSUBSENSORS;
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270 break;
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271 case O2RX_GETTYPE: StringToInt(tmpRxBuf,&tmpData);
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272 rxState = O2RX_GETCHANNEL;
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273 break;
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274
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275 case O2RX_GETO2: StringToInt(tmpRxBuf,&tmpO2);
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276
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277 setExternalInterfaceChannel(activeSensor + EXT_INTERFACE_MUX_OFFSET,(float)(tmpO2 / 10000.0));
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278 rxState = O2RX_GETTEMP;
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279 break;
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280 case O2RX_GETTEMP: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.temperature);
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281 rxState = O2RX_GETSTATUS;
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282 break;
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283 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status); /* raw data cycle */
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284 rxState = O2RX_GETDPHI;
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285 break;
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286 case O2RX_GETDPHI: /* ignored to save memory and most likly irrelevant for diver */
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287 rxState = O2RX_INTENSITY;
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288 break;
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289 case O2RX_INTENSITY: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.intensity); /* raw data cycle */
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diff changeset
290 rxState = O2RX_AMBIENTLIGHT;
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291 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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292 case O2RX_AMBIENTLIGHT: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.ambient); /* raw data cycle */
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293 rxState = O2RX_PRESSURE;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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294 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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295 case O2RX_PRESSURE: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.pressure); /* raw data cycle */
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296 rxState = O2RX_HUMIDITY;
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297 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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298 default:
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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299 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
300 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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301 memset((char*) tmpRxBuf, 0, tmpRxIdx);
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302 tmpRxIdx = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
303 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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304 }
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305 }
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306 else
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307 { /* the following data items are the last of a sensor respond => store temporal data */
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308 switch (rxState)
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309 {
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310 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status);
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311 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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312 localComState = UART_O2_IDLE;
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313 rxState = O2RX_IDLE;
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314 break;
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315 case O2RX_GETSUBSENSORS: StringToInt(tmpRxBuf,&tmpData);
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316 localComState = UART_O2_IDLE;
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317 rxState = O2RX_IDLE;
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318 break;
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319 case O2RX_HUMIDITY: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.humidity); /* raw data cycle */
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320 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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321 localComState = UART_O2_IDLE;
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322 rxState = O2RX_IDLE;
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323 break;
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324 case O2RX_GETNR: StringToUInt64((char*)tmpRxBuf,&tmpSensorDataDiveO2.sensorId);
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325 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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326 localComState = UART_O2_IDLE;
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327 rxState = O2RX_IDLE;
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328 break;
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329 default: localComState = UART_O2_IDLE;
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330 rxState = O2RX_IDLE;
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331 break;
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332 }
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333 }
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334 break;
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335 default: rxState = O2RX_IDLE;
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336 break;
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337
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338 }
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339 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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340 }
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341
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342
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343 uint8_t uartO2_isSensorConnected()
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344 {
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345 return digO2Connected;
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346 }
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347
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348 void uartO2_SetChannel(uint8_t channel)
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349 {
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350 if(channel <= MAX_MUX_CHANNEL)
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351 {
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352 activeSensor = channel;
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353 }
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354 }
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355