Mercurial > public > ostc4
annotate Small_CPU/Src/uartProtocol_Co2.c @ 875:943918a69836 Evo_2_23
DevBugfix: Added missing default language value
author | Ideenmodellierer |
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date | Thu, 15 Aug 2024 20:44:35 +0200 |
parents | c3dd461ca3f9 |
children | 4832981f9af8 |
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1 /** |
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2 ****************************************************************************** |
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3 * @file uartProtocol_Co2.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 31-Jul-2023 |
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7 * @brief Interface functionality to external, UART based CO2 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>© 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 <uartProtocol_Co2.h> |
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24 #include "uart.h" |
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25 #include "externalInterface.h" |
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26 |
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27 |
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28 #ifdef ENABLE_CO2_SUPPORT |
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29 static uint8_t CO2Connected = 0; /* Binary indicator if a sensor is connected or not */ |
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30 static receiveStateCO2_t rxState = CO2RX_Ready; |
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31 |
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32 |
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33 |
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34 float LED_Level = 0.0; /* Normalized LED value which may be used as indication for the health status of the sensor */ |
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35 float LED_ZeroOffset = 0.0; |
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36 float pCO2 = 0.0; |
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37 |
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38 |
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39 |
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40 void uartCo2_SendCmd(uint8_t CO2Cmd, uint8_t *cmdString, uint8_t *cmdLength) |
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41 { |
809 | 42 *cmdLength = 0; |
43 | |
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44 switch (CO2Cmd) |
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45 { |
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46 case CO2CMD_MODE_POLL: *cmdLength = snprintf((char*)cmdString, 10, "K 2\r\n"); |
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47 break; |
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48 case CO2CMD_MODE_STREAM: *cmdLength = snprintf((char*)cmdString, 10, "K 1\r\n"); |
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49 break; |
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50 case CO2CMD_CALIBRATE: *cmdLength = snprintf((char*)cmdString, 10, "G\r\n"); |
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51 break; |
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52 case CO2CMD_GETDATA: *cmdLength = snprintf((char*)cmdString, 10, "Q\r\n"); |
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53 break; |
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54 case CO2CMD_GETSCALE: *cmdLength = snprintf((char*)cmdString, 10, ".\r\n"); |
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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 UART_SendCmdString(cmdString); |
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62 } |
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63 } |
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64 |
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65 |
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66 void uartCo2_Control(void) |
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67 { |
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68 static uint8_t cmdString[10]; |
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69 static uint8_t cmdLength = 0; |
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70 static uint8_t lastComState = 0; |
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71 |
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72 uint8_t activeSensor = externalInterface_GetActiveUartSensor(); |
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73 uartCO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET); |
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74 |
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75 uint8_t *pmap = externalInterface_GetSensorMapPointer(0); |
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76 |
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77 |
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78 if(localComState == UART_CO2_ERROR) |
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79 { |
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80 localComState = lastComState; |
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81 } |
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82 |
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83 if(localComState == UART_CO2_INIT) |
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84 { |
809 | 85 CO2Connected = 0; |
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86 externalInterface_SetCO2Scale(0.0); |
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87 UART_StartDMA_Receiption(); |
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88 localComState = UART_CO2_SETUP; |
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89 } |
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90 if(localComState == UART_CO2_SETUP) |
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91 { |
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92 if(externalInterface_GetCO2Scale() == 0.0) |
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93 { |
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94 uartCo2_SendCmd(CO2CMD_GETSCALE, cmdString, &cmdLength); |
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95 } |
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96 else |
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97 { |
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98 localComState = UART_CO2_IDLE; |
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99 } |
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100 } |
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101 else |
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102 { |
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103 if(localComState == UART_CO2_CALIBRATE) |
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104 { |
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105 uartCo2_SendCmd(CO2CMD_CALIBRATE, cmdString, &cmdLength); |
809 | 106 localComState = UART_CO2_IDLE; |
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107 } |
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108 else if(pmap[EXT_INTERFACE_SENSOR_CNT-1] == SENSOR_MUX) /* sensor is working in polling mode if mux is connected to avoid interference with other sensors */ |
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109 { |
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110 //if(cmdLength == 0) /* poll data */ |
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111 if(localComState == UART_CO2_IDLE) |
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112 { |
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113 uartCo2_SendCmd(CO2CMD_GETDATA, cmdString, &cmdLength); |
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114 localComState = UART_CO2_OPERATING; |
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115 } |
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116 else /* resend last command */ |
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117 { |
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118 UART_SendCmdString(cmdString); |
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119 cmdLength = 0; |
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120 } |
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121 } |
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122 else |
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123 { |
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124 localComState = UART_CO2_OPERATING; /* sensor in streaming mode if not connected to mux => operating */ |
809 | 125 UART_StartDMA_Receiption(); |
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126 } |
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127 } |
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128 lastComState = localComState; |
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129 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState); |
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130 } |
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131 |
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132 |
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133 void uartCo2_ProcessData(uint8_t data) |
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134 { |
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135 static uint8_t dataType = 0; |
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136 static uint32_t dataValue = 0; |
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137 uint8_t activeSensor = externalInterface_GetActiveUartSensor(); |
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138 uartCO2Status_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET); |
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139 |
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140 if(rxState == CO2RX_Ready) /* identify data content */ |
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141 { |
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142 switch(data) |
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143 { |
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144 case 'G': |
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145 case 'l': |
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146 case 'D': |
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147 case 'Z': |
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148 case '.': dataType = data; |
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149 rxState = CO2RX_Data0; |
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150 dataValue = 0; |
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151 break; |
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152 case '?': localComState = UART_CO2_ERROR; |
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153 break; |
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154 default: /* unknown or corrupted => ignore */ |
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155 break; |
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156 } |
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157 } |
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158 else if((data >= '0') && (data <= '9')) |
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159 { |
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160 if((rxState >= CO2RX_Data0) && (rxState <= CO2RX_Data4)) |
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161 { |
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162 dataValue = dataValue * 10 + (data - '0'); |
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163 rxState++; |
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164 if(rxState == CO2RX_Data5) |
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165 { |
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166 rxState = CO2RX_DataComplete; |
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167 } |
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168 } |
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169 else /* protocol error data has max 5 digits */ |
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170 { |
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171 if(rxState != CO2RX_DataComplete) /* commands will not answer with number values */ |
809 | 172 { |
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173 rxState = CO2RX_Ready; |
809 | 174 } |
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175 } |
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176 } |
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177 if((data == ' ') || (data == '\n')) /* Abort data detection */ |
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178 { |
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179 if(rxState == CO2RX_DataComplete) |
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180 { |
809 | 181 CO2Connected = 1; |
182 if(localComState == UART_CO2_SETUP) | |
183 { | |
184 if(dataType == '.') | |
185 { | |
186 localComState = UART_CO2_IDLE; | |
187 } | |
188 } | |
189 else | |
190 { | |
191 localComState = UART_CO2_IDLE; | |
192 } | |
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193 if(externalInterface_GetCO2State() == 0) |
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194 { |
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195 externalInterface_SetCO2State(EXT_INTERFACE_33V_ON); |
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196 } |
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197 switch(dataType) |
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198 { |
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199 case 'D': externalInterface_SetCO2SignalStrength(dataValue); |
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200 break; |
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201 case 'l': LED_ZeroOffset = dataValue; |
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202 break; |
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203 case 'Z': externalInterface_SetCO2Value(dataValue); |
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204 break; |
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205 case '.': externalInterface_SetCO2Scale(dataValue); |
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206 break; |
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207 default: rxState = CO2RX_Ready; |
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208 break; |
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209 } |
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210 } |
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211 if(rxState != CO2RX_Data0) /* reset state machine because message in wrong format */ |
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212 { |
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213 rxState = CO2RX_Ready; |
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214 } |
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215 } |
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216 externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState); |
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217 } |
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218 |
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219 uint8_t uartCo2_isSensorConnected() |
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220 { |
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221 return CO2Connected; |
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222 } |
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223 |
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224 #endif |
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225 |