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annotate Small_CPU/Inc/uart.h @ 704:f1b40364b0af

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Added protocol functions for UART DiveO2 sensor: The code has been modified to support the handling of several protocols (including baud rate changes). The data is requested by polling and passed via DMA into a ringbuffer which is then parsed by a cyclic function call in the main loop. At the moment only the O2 values are forwarded but because the sensor send several types of data within a signle message already more is extracted but yet discarded.
author Ideenmodellierer
date Fri, 28 Oct 2022 20:49:21 +0200
parents fca2bd25e6e2
children 045ff7800501
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1 /**
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2 ******************************************************************************
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3 * @file uart.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 27-March-2014
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7 * @brief button control
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8 *
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9 ******************************************************************************
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10 * @attention
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11 *
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12 * <h2><center>&copy; COPYRIGHT(c) 2015 heinrichs weikamp</center></h2>
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13 *
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14 ******************************************************************************
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15 */
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16
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17 /* Define to prevent recursive inclusion -------------------------------------*/
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18 #ifndef UART_H
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19 #define UART_H
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20
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21 #ifdef __cplusplus
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22 extern "C" {
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23 #endif
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24
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25 #include "stm32f4xx_hal.h"
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26
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27
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28 typedef enum
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29 {
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30 RX_Ready= 0, /* Initial state */
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31 RX_DetectStart, /* validate start byte */
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32 RX_SelectData, /* Data contained in this frame */
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33 RX_Data0, /* Process incoming data */
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34 RX_Data1,
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35 RX_Data2,
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36 RX_Data3,
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37 RX_Data4,
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38 RX_Data5,
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39 RX_Data6,
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40 RX_Data7,
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41 RX_Data8,
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42 RX_Data9,
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43 RX_Data10,
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44 RX_Data11,
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45 RX_Data12,
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46 RX_DataComplete
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47 } receiveState_t;
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48
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49 typedef enum
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50 {
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51 UART_O2_INIT = 0,
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52 UART_O2_CHECK, /* send blink command and check if sensor answers */
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53 UART_O2_REQ_INFO, /* request information about available internal sensors of sensor */
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54 UART_O2_REQ_ID, /* request ID of sensor */
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55 UART_O2_IDLE, /* sensor detected and no communication pending */
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56 UART_O2_REQ_O2, /* O2 value has been requested and is in receiption progress */
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57 UART_O2_ERROR /* Error state which could not be resolved => only exit via de-/activation cycle */
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58 } uartO2Status_t;
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59
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60
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61 typedef enum
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62 {
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63 O2RX_IDLE = 0, /* no receiption pending */
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64 O2RX_CONFIRM, /* check the command echo */
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65 O2RX_GETNR, /* extract the sensor number */
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66 O2RX_GETO2, /* extract the ppo2 */
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67 O2RX_GETTEMP, /* extract the temperature */
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68 O2RX_GETSTATUS, /* extract the sensor status */
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69 O2RX_GETTYPE, /* extract the sensor type (should be 8) */
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70 O2RX_GETCHANNEL, /* extract the number of sensor channels (should be 1) */
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71 O2RX_GETVERSION, /* extract the sensor version */
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72 O2RX_GETSUBSENSORS /* extract the available measures (O2, temperature, humidity etc) */
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73 } uartO2RxState_t;
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74
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75 void MX_USART1_UART_Init(void);
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76 void MX_USART1_UART_DeInit(void);
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77 void MX_USART1_DMA_Init(void);
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78 uint8_t UART_ButtonAdjust(uint8_t *array);
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79 #ifdef ENABLE_CO2_SUPPORT
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80 void HandleUARTCO2Data(void);
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81 #endif
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82 #ifdef ENABLE_SENTINEL_MODE
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83 void HandleUARTSentinelData(void);
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84 #endif
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85 void HandleUARTDigitalO2(void);
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86
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87 #ifdef __cplusplus
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88 }
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89 #endif
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90
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91 #endif /* UART_H */
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92
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93 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/