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annotate Small_CPU/Src/uartProtocol_O2.c @ 921:eb4109d7d1e9 Evo_2_23

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Improved mix mode ADC conversion: Activity of UART sensors may have an impact to ADC measurement. To avoid the ADC trigger was moved into a time window ~300ms after last UART command request => After UART sensor performed measurement but before next measurement is requested. In addition the general ADC measurement cycle has been changed to one second to avoid jitter in the value updates on the display.
author Ideenmodellierer
date Sun, 03 Nov 2024 18:19:51 +0100
parents 4832981f9af8
children effadaa3a1f7
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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();
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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 }
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138 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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139 }
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140
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141 void uartO2_ProcessData(uint8_t data)
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142 {
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143 static uint8_t cmdReadIndex = 0;
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144 static uint8_t errorReadIndex = 0;
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145 static char tmpRxBuf[30];
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146 static uint8_t tmpRxIdx = 0;
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147
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148 uint32_t tmpO2 = 0;
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149 uint32_t tmpData = 0;
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Ideenmodellierer
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diff changeset
150
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
151 uint32_t tick = HAL_GetTick();
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diff changeset
152
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
153 uartO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);
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154
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
155 lastReceiveTick = tick;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
156 switch(rxState)
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diff changeset
157 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
158 case O2RX_CONFIRM: if(data == '#')
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
159 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
160 cmdReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
161 errorReadIndex = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
162 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
163 if(errorReadIndex < sizeof(errorStr)-1)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
164 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
165 if(data == errorStr[errorReadIndex])
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 errorReadIndex++;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
168 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
169 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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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 = 0;
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172 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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173 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
174 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
175 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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176 respondErrorDetected = 1;
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177 errorReadIndex = 0;
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178 if(localComState != UART_O2_IDLE)
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179 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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180 localComState = UART_O2_ERROR;
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181 }
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182 }
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183 if(data == cmdString[cmdReadIndex])
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184 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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185 cmdReadIndex++;
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186 if(cmdReadIndex == cmdLength - 3)
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187 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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188 errorReadIndex = 0;
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189 if((activeSensor == MAX_MUX_CHANNEL))
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190 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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191 if(respondErrorDetected)
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192 {
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193 digO2Connected = 0; /* the multiplexer mirrors the incoming message and does not generate an error information => no mux connected */
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194 }
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195 else
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196 {
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197 digO2Connected = 1;
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198 }
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199 }
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200 else /* handle sensors which should respond with an error message after channel switch */
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201 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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202 digO2Connected = 1;
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203 }
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204 tmpRxIdx = 0;
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205 memset((char*) tmpRxBuf, 0, sizeof(tmpRxBuf));
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206 cmdReadIndex = 0;
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207 switch (localComState)
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208 {
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209 case UART_O2_CHECK: localComState = UART_O2_IDLE;
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210 rxState = O2RX_IDLE;
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211 break;
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212 case UART_O2_REQ_ID: rxState = O2RX_GETNR;
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213 break;
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214 case UART_O2_REQ_INFO: rxState = O2RX_GETTYPE;
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215 break;
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216 case UART_O2_REQ_RAW:
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217 case UART_O2_REQ_O2: rxState = O2RX_GETO2;
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218 break;
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219 default: localComState = UART_O2_IDLE;
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220 rxState = O2RX_IDLE;
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221 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
222 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
223 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
224 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
225 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
226 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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227 cmdReadIndex = 0;
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diff changeset
228 }
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229 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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230
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
231 case O2RX_GETSTATUS:
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232 case O2RX_GETTEMP:
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diff changeset
233 case O2RX_GETTYPE:
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diff changeset
234 case O2RX_GETVERSION:
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diff changeset
235 case O2RX_GETCHANNEL:
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diff changeset
236 case O2RX_GETSUBSENSORS:
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diff changeset
237 case O2RX_GETO2:
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diff changeset
238 case O2RX_GETNR:
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diff changeset
239 case O2RX_GETDPHI:
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diff changeset
240 case O2RX_INTENSITY:
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diff changeset
241 case O2RX_AMBIENTLIGHT:
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diff changeset
242 case O2RX_PRESSURE:
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diff changeset
243 case O2RX_HUMIDITY:
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diff changeset
244 if(data != 0x0D)
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diff changeset
245 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
246 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
247 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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248 tmpRxBuf[tmpRxIdx++] = data;
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diff changeset
249 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
250 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
251 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
252 if(tmpRxIdx != 0)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
253 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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254 switch(rxState)
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
255 {
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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256 case O2RX_GETCHANNEL: StringToInt(tmpRxBuf,&tmpData);
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257 rxState = O2RX_GETVERSION;
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258 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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259 case O2RX_GETVERSION: StringToInt(tmpRxBuf,&tmpData);
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260 rxState = O2RX_GETSUBSENSORS;
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261 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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262 case O2RX_GETTYPE: StringToInt(tmpRxBuf,&tmpData);
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263 rxState = O2RX_GETCHANNEL;
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264 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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265
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
266 case O2RX_GETO2: StringToInt(tmpRxBuf,&tmpO2);
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diff changeset
267
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
268 setExternalInterfaceChannel(activeSensor + EXT_INTERFACE_MUX_OFFSET,(float)(tmpO2 / 10000.0));
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269 rxState = O2RX_GETTEMP;
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270 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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271 case O2RX_GETTEMP: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.temperature);
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272 rxState = O2RX_GETSTATUS;
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273 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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274 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status); /* raw data cycle */
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275 rxState = O2RX_GETDPHI;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
276 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
277 case O2RX_GETDPHI: /* ignored to save memory and most likly irrelevant for diver */
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278 rxState = O2RX_INTENSITY;
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diff changeset
279 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
280 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
281 rxState = O2RX_AMBIENTLIGHT;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
282 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
283 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
284 rxState = O2RX_PRESSURE;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
285 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
286 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
287 rxState = O2RX_HUMIDITY;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
288 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
parents:
diff changeset
289 default:
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
290 break;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
291 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
292 memset((char*) tmpRxBuf, 0, tmpRxIdx);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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diff changeset
293 tmpRxIdx = 0;
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
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parents:
diff changeset
294 }
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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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
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diff changeset
297 else
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
298 { /* 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
299 switch (rxState)
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
parents:
diff changeset
301 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&tmpSensorDataDiveO2.status);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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diff changeset
302 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
d4083ac09b5d Moved DiveO2 sensor specific funtionality into separated file:
Ideenmodellierer
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303 localComState = UART_O2_IDLE;
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304 rxState = O2RX_IDLE;
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305 break;
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306 case O2RX_GETSUBSENSORS: StringToInt(tmpRxBuf,&tmpData);
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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_HUMIDITY: StringToInt(tmpRxBuf,(uint32_t*)&tmpSensorDataDiveO2.humidity); /* raw data cycle */
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311 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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312 localComState = UART_O2_IDLE;
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313 rxState = O2RX_IDLE;
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314 break;
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315 case O2RX_GETNR: StringToUInt64((char*)tmpRxBuf,&tmpSensorDataDiveO2.sensorId);
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316 externalInterface_SetSensorData(activeSensor + EXT_INTERFACE_MUX_OFFSET,(uint8_t*)&tmpSensorDataDiveO2);
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317 localComState = UART_O2_IDLE;
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318 rxState = O2RX_IDLE;
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319 break;
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320 default: localComState = UART_O2_IDLE;
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321 rxState = O2RX_IDLE;
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322 break;
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323 }
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324 }
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325 break;
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326 default: rxState = O2RX_IDLE;
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327 break;
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328
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329 }
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330 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
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331 }
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332
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333
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334 uint8_t uartO2_isSensorConnected()
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335 {
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336 return digO2Connected;
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337 }
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338
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339 void uartO2_SetChannel(uint8_t channel)
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340 {
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341 if(channel <= MAX_MUX_CHANNEL)
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342 {
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343 activeSensor = channel;
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344 }
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345 }
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346