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annotate Small_CPU/Src/uartProtocol_O2.c @ 959:5d5fa0a3b409 Evo_2_23 tip

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Devbugfix: external surface pressure calibration: Due to mixing of mBar and Bar units the calculation of the new offset for the surface pressure could be wrong. The code was cleaned up and the problem is solved.
author Ideenmodellierer
date Mon, 06 Jan 2025 21:36:31 +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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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 tmpO2 = 0;
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diff changeset
153 uint32_t tmpData = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
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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Ideenmodellierer
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diff changeset
158
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
159 lastReceiveTick = tick;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
160 switch(rxState)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
161 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
162 case O2RX_CONFIRM: if(data == '#')
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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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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diff changeset
167 if(errorReadIndex < sizeof(errorStr)-1)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
168 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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parents:
diff changeset
169 if(data == errorStr[errorReadIndex])
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
170 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
171 errorReadIndex++;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
172 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
173 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
174 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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175 errorReadIndex = 0;
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Ideenmodellierer
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diff changeset
176 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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177 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
178 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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179 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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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 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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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 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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192 errorReadIndex = 0;
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193 if((activeSensor == MAX_MUX_CHANNEL))
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194 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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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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diff changeset
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 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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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;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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223 default: localComState = UART_O2_IDLE;
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224 rxState = O2RX_IDLE;
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diff changeset
225 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
226 }
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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diff changeset
228 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
229 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
230 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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231 cmdReadIndex = 0;
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diff changeset
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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diff changeset
235 case O2RX_GETSTATUS:
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diff changeset
236 case O2RX_GETTEMP:
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diff changeset
237 case O2RX_GETTYPE:
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Ideenmodellierer
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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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Ideenmodellierer
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diff changeset
241 case O2RX_GETO2:
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Ideenmodellierer
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diff changeset
242 case O2RX_GETNR:
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Ideenmodellierer
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diff changeset
243 case O2RX_GETDPHI:
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Ideenmodellierer
parents:
diff changeset
244 case O2RX_INTENSITY:
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Ideenmodellierer
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diff changeset
245 case O2RX_AMBIENTLIGHT:
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Ideenmodellierer
parents:
diff changeset
246 case O2RX_PRESSURE:
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Ideenmodellierer
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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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diff changeset
251 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
252 tmpRxBuf[tmpRxIdx++] = data;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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parents:
diff changeset
253 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
254 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
255 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
256 if(tmpRxIdx != 0)
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diff changeset
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:
Ideenmodellierer
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diff changeset
260 case O2RX_GETCHANNEL: StringToInt(tmpRxBuf,&tmpData);
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diff changeset
261 rxState = O2RX_GETVERSION;
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262 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
263 case O2RX_GETVERSION: StringToInt(tmpRxBuf,&tmpData);
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diff changeset
264 rxState = O2RX_GETSUBSENSORS;
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diff changeset
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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diff changeset
267 rxState = O2RX_GETCHANNEL;
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268 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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269
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
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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diff changeset
276 rxState = O2RX_GETSTATUS;
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277 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
278 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status); /* raw data cycle */
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diff changeset
279 rxState = O2RX_GETDPHI;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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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_GETDPHI: /* ignored to save memory and most likly irrelevant for diver */
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diff changeset
282 rxState = O2RX_INTENSITY;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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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_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
285 rxState = O2RX_AMBIENTLIGHT;
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_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
288 rxState = O2RX_PRESSURE;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
289 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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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:
Ideenmodellierer
parents:
diff changeset
292 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
293 default:
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
294 break;
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 memset((char*) tmpRxBuf, 0, tmpRxIdx);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
297 tmpRxIdx = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
298 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
299 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
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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diff changeset
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
parents:
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