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annotate Small_CPU/Inc/uartProtocol_Sentinel.h @ 1065:1f2067cad41b Icon_Integration

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Mixed sensor operation improvment: A peak detector has been added to the adc measurement to avoid interferance while UART sensor are taking measurement while adc is active. The previous approach to shift adc into time windows where no UART were active had to be replaced because for the CO2 sensor is continously taking samples without providing a sync signal. In addition the UART MUX switching behavior has been improved (potential rx data received from previous sensor is discarded during channel switch etc.)
author Ideenmodellierer
date Mon, 16 Feb 2026 21:27:26 +0100
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children
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1 /**
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2 ******************************************************************************
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3 * @file uartProtocol_Sentinel.h
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4 * @author heinrichs weikamp gmbh
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5 * @version V0.0.1
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6 * @date 15-Jan-2024
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7 * @brief Interface functionality read data from Sentinel rebreather
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8 *
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9 @verbatim
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10 ==============================================================================
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11 ##### How to use #####
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12 ==============================================================================
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13 @endverbatim
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14 ******************************************************************************
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15 * @attention
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16 *
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17 * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
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18 *
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19 ******************************************************************************
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20 */
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21
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22 /* Define to prevent recursive inclusion -------------------------------------*/
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23 #ifndef UART_PROTOCOL_SENTINEL_H
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24 #define UART_PROTOCOL_SENTINEL_H
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25
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26 #ifdef __cplusplus
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27 extern "C" {
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28 #endif
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29
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30 /* Includes ------------------------------------------------------------------*/
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31 #include "configuration.h"
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32 #include "stm32f4xx_hal.h"
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33
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34 /* Bit flags for different sensor types provided by Sentinel or Red Head/Bare */
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35
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36 #define SENTINEL_O2 0x01
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37 #define SENTINEL_CO2 0x02
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38 #define SENTINEL_PRESSURE 0x04
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39 #define SENTINEL_TEMPSTICK 0x08
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40
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41
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42
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43 #define UART_SENTINEL_O2_P 'T' /* Primary O2 sensor */
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44 #define UART_SENTINEL_O2_S 'S' /* Secondary O2 sensor */
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45 #define UART_SENTINEL_PRESSURE_O2 'I' /* O2 pressure */
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46 #define UART_SENTINEL_PRESSURE_D 'J' /* Diluent pressure */
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47 #define UART_SENTINEL_TEMPSTICK 'Y' /* Sector value of the tempstick */
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48
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49 typedef enum
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50 {
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51 UART_SENTINEL_INIT = 0, /* Default Status for every sensor type */
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52 UART_SENTINEL_IDLE, /* sensor detected and no communication pending */
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53 UART_SENTINEL_ERROR,
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54 UART_SENTINEL_OPERATING, /* normal operation */
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55 } uartSentinelStatus_t;
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56
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57 typedef enum
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58 {
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59 SENTRX_Ready= 0, /* Initial state */
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60 SENTRX_DetectStart, /* validate start byte */
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61 SENTRX_SelectData, /* Data contained in this frame */
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62 SENTRX_Data0, /* Process incoming data */
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63 SENTRX_Data1,
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64 SENTRX_Data2,
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65 SENTRX_Data3,
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66 SENTRX_Data4,
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67 SENTRX_Data5,
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68 SENTRX_Data6,
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69 SENTRX_Data7,
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70 SENTRX_Data8,
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71 SENTRX_Data9,
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72 SENTRX_Data10,
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73 SENTRX_CheckSum,
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74 SENTRX_DataComplete
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75 } receiveStateSentinel_t;
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76
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77
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78 void uartSentinel_Control(void);
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79 void uartSentinel_ProcessData(uint8_t data);
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80 uint8_t uartSentinel_isSensorConnected();
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81
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82 #endif /* UART_PROTOCOL_SENTINEL_H */