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annotate Small_CPU/Inc/RTE_FlashAccess.h @ 1079:9e1fdb383d86 Icon_Integration

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Changed reaction for uart DMA buffer overruns: In the previous version a DMA was not restarted in case the read pointer is in the chunk which should be filled next. In normal operation this should never happen, in special cases, like debugging, it may occure. In case of an overrun the data may be already outdated and can be discarded. Because of this the new handling of a buffer overflow is to set the read pointer to the start of the chunk => the read function will start with the latest received data. Not yet processed data will be discarded.
author Ideenmodellierer
date Sun, 08 Mar 2026 21:04:36 +0100
parents 91a8f9893e68
children
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1 /**
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2 ******************************************************************************
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3 * @file RTE_FLashAccess.h based on BonexFLashAccess.h based on firmwareEraseProgram.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 20-July-2016
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7 * @version V0.0.1
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8 * @since 20-July-2016
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9 * @brief erase and program the STM32F4xx internal FLASH memory for compasss calib etc.
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10 *
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11 @verbatim
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12 ==============================================================================
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13 ##### How to use #####
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14 ==============================================================================
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15 @endverbatim
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16 ******************************************************************************
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17 * @attention
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18 *
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19 * <h2><center>&copy; COPYRIGHT(c) 2016 heinrichs weikamp</center></h2>
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20 *
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21 ******************************************************************************
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22 */
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23
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24 /* Define to prevent recursive inclusion -------------------------------------*/
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25 #ifndef RTE_FLASH_ACCESS_H
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26 #define RTE_FLASH_ACCESS_H
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27
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28 #ifdef __cplusplus
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29 extern "C" {
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30 #endif
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31
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32 /* Includes ------------------------------------------------------------------*/
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33 #include "stm32f4xx_hal.h"
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34
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35 /* Exported variables --------------------------------------------------------*/
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36 /* Exported types ------------------------------------------------------------*/
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37 enum
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38 {
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39 BFA_OK = 0, //= HAL_OK
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40 BFA_ERROR = (uint8_t)HAL_ERROR,
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41 BFA_BUSY = (uint8_t)HAL_BUSY,
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42 BFA_TIMEOUT = (uint8_t)HAL_TIMEOUT,
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43 BFA_EMPTY,
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44 };
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45
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46 /// split word to 2 bytes
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47 typedef struct{
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48 uint8_t low; ///< split word to 2 bytes
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49 uint8_t hi; ///< split word to 2 bytes
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50 } two_byte;
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51
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52
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53 /// split word to 2 bytes
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54 typedef union{
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55 two_byte Byte; ///< split word to 2 bytes
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56 uint16_t Word; ///< split word to 2 bytes
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57 } tword;
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58
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59
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60 /// split signed word to 2 bytes
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61 typedef union{
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62 two_byte Byte; ///< split signed word to 2 bytes
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63 int16_t Word; ///< split signed word to 2 bytes
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64 } signed_tword;
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65
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66
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67 /// split full32 to 2 words
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68 typedef struct{
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69 uint16_t low16; ///< split word to 2 bytes
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70 uint16_t hi16; ///< split word to 2 bytes
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71 } two_word;
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72
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73 typedef union{
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74 two_word Word16; ///< split word to 2 bytes
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75 uint32_t Full32; ///< split word to 2 bytes
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76 } tfull32;
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77
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78 /* Exported functions --------------------------------------------------------*/
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79
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80 uint8_t BFA_readLastDataBlock(tfull32 *dataArray4);
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81 uint8_t BFA_writeDataBlock(const tfull32 *dataArray4);
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82 uint16_t BFA_calc_Block_Checksum(const tfull32 *dataArray4);
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83
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84 #ifdef __cplusplus
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85 }
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86 #endif
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87
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88 #endif /* RTE_FLASH_ACCESS_H */
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89
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90 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/