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annotate Small_CPU/Src/uartProtocol_O2.c @ 958:902cb199eee6 Evo_2_23

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Changed menu name O2 Sensors to External Sensors: Meanwhile not only O2 sensors may be connected using the external interface (e.g. CO2 sensors) => renamed menu to avoid confusions.
author Ideenmodellierer
date Mon, 06 Jan 2025 21:34:33 +0100
parents 3420e3ba698d
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 activeSensor = externalInterface_GetActiveUartSensor();
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79
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80 uartO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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81 externalInterface_GetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET, (uint8_t*)&tmpSensorDataDiveO2);
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82
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83
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84 if(lastActiveSensor != activeSensor)
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85 {
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86 lastActiveSensor = activeSensor;
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87 if(localComState != UART_O2_ERROR)
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88 {
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89 lastComState = localComState;
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90 }
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91 else
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92 {
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93 lastComState = UART_O2_IDLE;
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94 }
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95 if(localComState == UART_O2_CHECK)
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96 {
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97 localComState = UART_O2_IDLE;
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98 }
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99 UART_FlushRxBuffer();
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100 }
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101
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102 if(localComState == UART_O2_INIT)
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103 {
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104 memset((char*) &tmpSensorDataDiveO2, 0, sizeof(tmpSensorDataDiveO2));
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105 externalInterface_SetSensorData(0xFF,(uint8_t*)&tmpSensorDataDiveO2);
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106
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107 localComState = UART_O2_CHECK;
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108 lastComState = UART_O2_CHECK;
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109 UART_clearRxBuffer(&Uart1Ctrl);
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110 uartO2_SetupCmd(localComState,cmdString,&cmdLength);
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111 UART_SendCmdString(cmdString);
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112 rxState = O2RX_CONFIRM;
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113 respondErrorDetected = 0;
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114 digO2Connected = 0;
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115 }
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116 else
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117 {
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118 if(localComState == UART_O2_ERROR)
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119 {
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120 localComState = lastComState;
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121 }
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122 lastComState = localComState;
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123 if(localComState == UART_O2_IDLE) /* cyclic request of o2 value */
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124 {
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125 if((activeSensor != MAX_MUX_CHANNEL) && (tmpSensorDataDiveO2.sensorId == 0))
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126 {
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127 localComState = UART_O2_REQ_ID;
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128 }
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129 else
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130 {
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131 localComState = UART_O2_REQ_RAW;
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132 }
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133 }
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134 rxState = O2RX_CONFIRM;
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135 uartO2_SetupCmd(localComState,cmdString,&cmdLength);
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136 UART_SendCmdString(cmdString);
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137 if(localComState == UART_O2_CHECK)
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138 {
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139 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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140 }
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141 }
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142 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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143 }
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144
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145 void uartO2_ProcessData(uint8_t data)
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146 {
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147 static uint8_t cmdReadIndex = 0;
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148 static uint8_t errorReadIndex = 0;
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149 static char tmpRxBuf[30];
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150 static uint8_t tmpRxIdx = 0;
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151
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
152 uint32_t tmpO2 = 0;
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diff changeset
153 uint32_t tmpData = 0;
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154
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
155 uint32_t tick = HAL_GetTick();
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diff changeset
156
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
157 uartO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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158
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
159 lastReceiveTick = tick;
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diff changeset
160 switch(rxState)
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diff changeset
161 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
162 case O2RX_CONFIRM: if(data == '#')
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diff changeset
163 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
164 cmdReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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165 errorReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
166 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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167 if(errorReadIndex < sizeof(errorStr)-1)
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diff changeset
168 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
169 if(data == errorStr[errorReadIndex])
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170 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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171 errorReadIndex++;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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172 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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173 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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174 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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175 errorReadIndex = 0;
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176 }
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177 }
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178 else
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179 {
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180 respondErrorDetected = 1;
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181 errorReadIndex = 0;
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182 if(localComState != UART_O2_IDLE)
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183 {
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184 localComState = UART_O2_ERROR;
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185 }
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186 }
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187 if(data == cmdString[cmdReadIndex])
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188 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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189 cmdReadIndex++;
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190 if(cmdReadIndex == cmdLength - 3)
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191 {
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192 errorReadIndex = 0;
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193 if((activeSensor == MAX_MUX_CHANNEL))
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194 {
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195 if(respondErrorDetected)
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196 {
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197 digO2Connected = 0; /* the multiplexer mirrors the incoming message and does not generate an error information => no mux connected */
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198 }
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199 else
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200 {
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201 digO2Connected = 1;
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202 }
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203 }
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204 else /* handle sensors which should respond with an error message after channel switch */
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205 {
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206 digO2Connected = 1;
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207 }
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208 tmpRxIdx = 0;
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209 memset((char*) tmpRxBuf, 0, sizeof(tmpRxBuf));
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210 cmdReadIndex = 0;
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211 switch (localComState)
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212 {
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213 case UART_O2_CHECK: localComState = UART_O2_IDLE;
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214 rxState = O2RX_IDLE;
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215 break;
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216 case UART_O2_REQ_ID: rxState = O2RX_GETNR;
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217 break;
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218 case UART_O2_REQ_INFO: rxState = O2RX_GETTYPE;
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219 break;
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220 case UART_O2_REQ_RAW:
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221 case UART_O2_REQ_O2: rxState = O2RX_GETO2;
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222 break;
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223 default: localComState = UART_O2_IDLE;
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224 rxState = O2RX_IDLE;
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225 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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226 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
227 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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228 }
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229 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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230 {
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231 cmdReadIndex = 0;
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232 }
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233 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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234
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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235 case O2RX_GETSTATUS:
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236 case O2RX_GETTEMP:
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diff changeset
237 case O2RX_GETTYPE:
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diff changeset
238 case O2RX_GETVERSION:
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diff changeset
239 case O2RX_GETCHANNEL:
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diff changeset
240 case O2RX_GETSUBSENSORS:
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diff changeset
241 case O2RX_GETO2:
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diff changeset
242 case O2RX_GETNR:
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diff changeset
243 case O2RX_GETDPHI:
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diff changeset
244 case O2RX_INTENSITY:
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diff changeset
245 case O2RX_AMBIENTLIGHT:
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diff changeset
246 case O2RX_PRESSURE:
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diff changeset
247 case O2RX_HUMIDITY:
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diff changeset
248 if(data != 0x0D)
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diff changeset
249 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
250 if(data != ' ') /* the following data entities are placed within the data stream => no need to store data at the end */
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251 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
252 tmpRxBuf[tmpRxIdx++] = data;
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diff changeset
253 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
254 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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255 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
256 if(tmpRxIdx != 0)
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257 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
258 switch(rxState)
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diff changeset
259 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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260 case O2RX_GETCHANNEL: StringToInt(tmpRxBuf,&tmpData);
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261 rxState = O2RX_GETVERSION;
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262 break;
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263 case O2RX_GETVERSION: StringToInt(tmpRxBuf,&tmpData);
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264 rxState = O2RX_GETSUBSENSORS;
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265 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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266 case O2RX_GETTYPE: StringToInt(tmpRxBuf,&tmpData);
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267 rxState = O2RX_GETCHANNEL;
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268 break;
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269
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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270 case O2RX_GETO2: StringToInt(tmpRxBuf,&tmpO2);
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271
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
272 setExternalInterfaceChannel(activeSensor + EXT_INTERFACE_MUX_OFFSET,(float)(tmpO2 / 10000.0));
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273 rxState = O2RX_GETTEMP;
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274 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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275 case O2RX_GETTEMP: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.temperature);
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276 rxState = O2RX_GETSTATUS;
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277 break;
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278 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status); /* raw data cycle */
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279 rxState = O2RX_GETDPHI;
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diff changeset
280 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
281 case O2RX_GETDPHI: /* ignored to save memory and most likly irrelevant for diver */
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282 rxState = O2RX_INTENSITY;
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283 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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284 case O2RX_INTENSITY: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.intensity); /* raw data cycle */
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diff changeset
285 rxState = O2RX_AMBIENTLIGHT;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
286 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
287 case O2RX_AMBIENTLIGHT: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.ambient); /* raw data cycle */
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
288 rxState = O2RX_PRESSURE;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
289 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
290 case O2RX_PRESSURE: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.pressure); /* raw data cycle */
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
291 rxState = O2RX_HUMIDITY;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
292 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
293 default:
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
294 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
295 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
296 memset((char*) tmpRxBuf, 0, tmpRxIdx);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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297 tmpRxIdx = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
298 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
299 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
300 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
301 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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302 { /* the following data items are the last of a sensor respond => store temporal data */
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
303 switch (rxState)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
304 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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305 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status);
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306 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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307 localComState = UART_O2_IDLE;
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308 rxState = O2RX_IDLE;
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309 break;
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310 case O2RX_GETSUBSENSORS: StringToInt(tmpRxBuf,&tmpData);
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311 localComState = UART_O2_IDLE;
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312 rxState = O2RX_IDLE;
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313 break;
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314 case O2RX_HUMIDITY: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.humidity); /* raw data cycle */
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315 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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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_GETNR: StringToUInt64((char*)tmpRxBuf,&tmpSensorDataDiveO2.sensorId);
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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 default: localComState = UART_O2_IDLE;
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325 rxState = O2RX_IDLE;
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326 break;
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327 }
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328 }
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329 break;
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330 default: rxState = O2RX_IDLE;
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331 break;
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332
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333 }
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334 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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335 }
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336
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337
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338 uint8_t uartO2_isSensorConnected()
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339 {
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340 return digO2Connected;
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341 }
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342
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343 void uartO2_SetChannel(uint8_t channel)
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344 {
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345 if(channel <= MAX_MUX_CHANNEL)
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346 {
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347 activeSensor = channel;
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348 }
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349 }
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350