Mercurial > public > ostc4

annotate Small_CPU/Src/uartProtocol_O2.c @ 886:d398ecc7d103 Evo_2_23

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Improve communication stability: In case e.g. the bluetooth module has just been started some 'noice' characters may be in the receive buffer causing an error in the modul responds function. In case the legth of the response is unexpected then the buffer will be evaluated till it is empty or an matching answer is found.
author Ideenmodellierer
date Sun, 01 Sep 2024 21:38:06 +0200
parents f8a112c5e71d
children 4832981f9af8
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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 uartO2_SetupCmd(localComState,cmdString,&cmdLength);
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110
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111 rxState = O2RX_CONFIRM;
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112 respondErrorDetected = 0;
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113 digO2Connected = 0;
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114
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115 UART_StartDMA_Receiption();
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116 }
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117 else
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118 {
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119 if(localComState == UART_O2_ERROR)
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120 {
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121 localComState = lastComState;
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122 }
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123 lastComState = localComState;
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124 if(localComState == UART_O2_IDLE) /* cyclic request of o2 value */
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125 {
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126 if((activeSensor != MAX_MUX_CHANNEL) && (tmpSensorDataDiveO2.sensorId == 0))
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127 {
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128 localComState = UART_O2_REQ_ID;
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129 }
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130 else
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131 {
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132 localComState = UART_O2_REQ_RAW;
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133 }
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134 }
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135 rxState = O2RX_CONFIRM;
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136 uartO2_SetupCmd(localComState,cmdString,&cmdLength);
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137 UART_SendCmdString(cmdString);
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138 }
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139 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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140 }
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141
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142 void uartO2_ProcessData(uint8_t data)
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143 {
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144 static uint8_t cmdReadIndex = 0;
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145 static uint8_t errorReadIndex = 0;
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146 static char tmpRxBuf[30];
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147 static uint8_t tmpRxIdx = 0;
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148
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149 uint32_t tmpO2 = 0;
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150 uint32_t tmpData = 0;
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Ideenmodellierer
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diff changeset
151
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
152 uint32_t tick = HAL_GetTick();
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diff changeset
153
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
154 uartO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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Ideenmodellierer
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diff changeset
155
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
156 lastReceiveTick = tick;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
157 switch(rxState)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
158 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
159 case O2RX_CONFIRM: if(data == '#')
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
160 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
161 cmdReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
162 errorReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
163 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
164 if(errorReadIndex < sizeof(errorStr)-1)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
165 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
166 if(data == errorStr[errorReadIndex])
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
167 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
168 errorReadIndex++;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
169 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
170 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
171 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
172 errorReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
173 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
174 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
175 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
176 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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177 respondErrorDetected = 1;
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178 errorReadIndex = 0;
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179 if(localComState != UART_O2_IDLE)
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diff changeset
180 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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181 localComState = UART_O2_ERROR;
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182 }
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183 }
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184 if(data == cmdString[cmdReadIndex])
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185 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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186 cmdReadIndex++;
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187 if(cmdReadIndex == cmdLength - 3)
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188 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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189 errorReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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190 if((activeSensor == MAX_MUX_CHANNEL))
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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191 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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192 if(respondErrorDetected)
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193 {
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194 digO2Connected = 0; /* the multiplexer mirrors the incoming message and does not generate an error information => no mux connected */
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195 }
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196 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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197 {
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198 digO2Connected = 1;
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199 }
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200 }
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201 else /* handle sensors which should respond with an error message after channel switch */
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202 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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203 digO2Connected = 1;
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204 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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205 tmpRxIdx = 0;
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206 memset((char*) tmpRxBuf, 0, sizeof(tmpRxBuf));
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207 cmdReadIndex = 0;
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208 switch (localComState)
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209 {
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210 case UART_O2_CHECK: localComState = UART_O2_IDLE;
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211 rxState = O2RX_IDLE;
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212 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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213 case UART_O2_REQ_ID: rxState = O2RX_GETNR;
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214 break;
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215 case UART_O2_REQ_INFO: rxState = O2RX_GETTYPE;
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216 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
217 case UART_O2_REQ_RAW:
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218 case UART_O2_REQ_O2: rxState = O2RX_GETO2;
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diff changeset
219 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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220 default: localComState = UART_O2_IDLE;
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diff changeset
221 rxState = O2RX_IDLE;
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Ideenmodellierer
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diff changeset
222 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
223 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
224 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
225 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
226 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
227 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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228 cmdReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
229 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
230 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
231
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
232 case O2RX_GETSTATUS:
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diff changeset
233 case O2RX_GETTEMP:
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diff changeset
234 case O2RX_GETTYPE:
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diff changeset
235 case O2RX_GETVERSION:
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diff changeset
236 case O2RX_GETCHANNEL:
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diff changeset
237 case O2RX_GETSUBSENSORS:
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Ideenmodellierer
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diff changeset
238 case O2RX_GETO2:
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Ideenmodellierer
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diff changeset
239 case O2RX_GETNR:
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Ideenmodellierer
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diff changeset
240 case O2RX_GETDPHI:
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Ideenmodellierer
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diff changeset
241 case O2RX_INTENSITY:
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Ideenmodellierer
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diff changeset
242 case O2RX_AMBIENTLIGHT:
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Ideenmodellierer
parents:
diff changeset
243 case O2RX_PRESSURE:
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Ideenmodellierer
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diff changeset
244 case O2RX_HUMIDITY:
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
245 if(data != 0x0D)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
246 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
247 if(data != ' ') /* the following data entities are placed within the data stream => no need to store data at the end */
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Ideenmodellierer
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diff changeset
248 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
249 tmpRxBuf[tmpRxIdx++] = data;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
250 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
251 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
252 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
253 if(tmpRxIdx != 0)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
254 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
255 switch(rxState)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
256 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
257 case O2RX_GETCHANNEL: StringToInt(tmpRxBuf,&tmpData);
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diff changeset
258 rxState = O2RX_GETVERSION;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
259 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
260 case O2RX_GETVERSION: StringToInt(tmpRxBuf,&tmpData);
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diff changeset
261 rxState = O2RX_GETSUBSENSORS;
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diff changeset
262 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
263 case O2RX_GETTYPE: StringToInt(tmpRxBuf,&tmpData);
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diff changeset
264 rxState = O2RX_GETCHANNEL;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
265 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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266
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
267 case O2RX_GETO2: StringToInt(tmpRxBuf,&tmpO2);
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diff changeset
268
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
269 setExternalInterfaceChannel(activeSensor + EXT_INTERFACE_MUX_OFFSET,(float)(tmpO2 / 10000.0));
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Ideenmodellierer
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diff changeset
270 rxState = O2RX_GETTEMP;
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diff changeset
271 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
272 case O2RX_GETTEMP: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.temperature);
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Ideenmodellierer
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diff changeset
273 rxState = O2RX_GETSTATUS;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
274 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
275 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status); /* raw data cycle */
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diff changeset
276 rxState = O2RX_GETDPHI;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
277 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
278 case O2RX_GETDPHI: /* ignored to save memory and most likly irrelevant for diver */
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diff changeset
279 rxState = O2RX_INTENSITY;
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Ideenmodellierer
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diff changeset
280 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
281 case O2RX_INTENSITY: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.intensity); /* raw data cycle */
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
282 rxState = O2RX_AMBIENTLIGHT;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
283 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
284 case O2RX_AMBIENTLIGHT: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.ambient); /* raw data cycle */
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
285 rxState = O2RX_PRESSURE;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
286 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
287 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
288 rxState = O2RX_HUMIDITY;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
289 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
290 default:
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
291 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
292 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
293 memset((char*) tmpRxBuf, 0, tmpRxIdx);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
294 tmpRxIdx = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
295 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
296 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
297 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
298 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
299 { /* 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
300 switch (rxState)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
301 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
302 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
303 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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304 localComState = UART_O2_IDLE;
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305 rxState = O2RX_IDLE;
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306 break;
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307 case O2RX_GETSUBSENSORS: StringToInt(tmpRxBuf,&tmpData);
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308 localComState = UART_O2_IDLE;
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309 rxState = O2RX_IDLE;
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310 break;
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311 case O2RX_HUMIDITY: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.humidity); /* raw data cycle */
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312 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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313 localComState = UART_O2_IDLE;
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314 rxState = O2RX_IDLE;
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315 break;
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316 case O2RX_GETNR: StringToUInt64((char*)tmpRxBuf,&tmpSensorDataDiveO2.sensorId);
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317 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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318 localComState = UART_O2_IDLE;
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319 rxState = O2RX_IDLE;
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320 break;
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321 default: localComState = UART_O2_IDLE;
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322 rxState = O2RX_IDLE;
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323 break;
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324 }
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325 }
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326 break;
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327 default: rxState = O2RX_IDLE;
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328 break;
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329
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330 }
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331 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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332 }
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333
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334
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335 uint8_t uartO2_isSensorConnected()
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336 {
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337 return digO2Connected;
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338 }
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339
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340 void uartO2_SetChannel(uint8_t channel)
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341 {
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342 if(channel <= MAX_MUX_CHANNEL)
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343 {
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344 activeSensor = channel;
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345 }
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346 }
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347