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annotate Small_CPU/Src/uartProtocol_GNSS.c @ 916:4832981f9af8 Evo_2_23

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External sensor UART: Switch to DMA TX transfers: The previous version used polling tx function to transfer data. Because of the short command length of the protocols supported this was no big issue. New protocolls (like GNSS) have longer command sequence which have an impact to the program flow. That's why the implementation has been changed to DMA transmission.
author Ideenmodellierer
date Mon, 28 Oct 2024 20:34:58 +0100
parents 2225c467f1e9
children c0553dd70608
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899
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1 /**
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2 ******************************************************************************
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3 * @file uartProtocol_GNSS.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 30-Sep-2024
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7 * @brief Interface functionality operation of GNSS devices
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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) 2024 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 "scheduler.h"
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24 #include <uartProtocol_GNSS.h>
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25 #include "uart.h"
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26 #include "GNSS.h"
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27
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28 #ifdef ENABLE_GNSS
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29
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30 static uartGnssStatus_t gnssOpState = UART_GNSS_INIT;
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31 static receiveStateGnss_t rxState = GNSSRX_READY;
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32
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33 void ConvertByteToHexString(uint8_t byte, char* str)
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34 {
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35 uint8_t worker = 0;
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36 uint8_t digit = 0;
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37 uint8_t digitCnt = 1;
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38
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39 worker = byte;
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40 while((worker!=0) && (digitCnt != 255))
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41 {
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42 digit = worker % 16;
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43 if( digit < 10)
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44 {
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45 digit += '0';
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46 }
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47 else
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48 {
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49 digit += 'A' - 10;
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50 }
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51 str[digitCnt--]= digit;
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52 worker = worker / 16;
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53 }
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54 }
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55
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56 void uartGnss_Control(void)
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57 {
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58 static uint32_t delayStartTick = 0;
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59
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60 uint32_t tick = HAL_GetTick();
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61
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62 switch (gnssOpState)
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63 {
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64 case UART_GNSS_INIT: delayStartTick = tick;
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65 gnssOpState = UART_GNSS_LOAD;
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66 break;
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67 case UART_GNSS_LOAD: if(time_elapsed_ms(delayStartTick,HAL_GetTick()) > 1000)
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68 {
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69 GNSS_LoadConfig(&GNSS_Handle);
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70 gnssOpState = UART_GNSS_GET_ID;
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71 delayStartTick = tick;
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72 }
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73 break;
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74 case UART_GNSS_GET_ID: if(time_elapsed_ms(delayStartTick,HAL_GetTick()) > 250)
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75 {
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76 GNSS_GetUniqID(&GNSS_Handle);
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77 gnssOpState = UART_GNSS_IDLE;
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78 rxState = GNSSRX_RECEIVING;
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79 delayStartTick = tick;
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80 }
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81 break;
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82 case UART_GNSS_IDLE: if(time_elapsed_ms(delayStartTick,HAL_GetTick()) > 1000)
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83 {
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84 GNSS_GetPVTData(&GNSS_Handle);
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85 gnssOpState = UART_GNSS_OPERATING;
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86 rxState = GNSSRX_RECEIVING;
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87 delayStartTick = tick;
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88 }
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89 break;
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90 case UART_GNSS_OPERATING: if(time_elapsed_ms(delayStartTick,HAL_GetTick()) > 1000)
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91 {
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92 gnssOpState = UART_GNSS_IDLE; /* simple error handling => start next request */
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93 rxState = GNSSRX_READY;
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94 }
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95 break;
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96 default:
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97 break;
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98 }
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99 }
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100
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101 void uartGnss_ProcessData(void)
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102 {
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103 if(rxState == GNSSRX_RECEIVING)
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104 {
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105 if(GNSS_ParseBuffer(&GNSS_Handle))
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106 {
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107 gnssOpState = UART_GNSS_IDLE;
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108 }
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109 }
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110 }
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111
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112 #endif
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113