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annotate Small_CPU/Src/RTE_FlashAccess.c @ 865:cb386cccc7c5
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from mikeller
| author | heinrichsweikamp |
|---|---|
| date | Mon, 22 Jul 2024 16:39:48 +0200 |
| parents | 91a8f9893e68 |
| children |
| rev | line source |
|---|---|
| 38 | 1 /** |
| 2 ****************************************************************************** | |
| 3 * @file RTE_FLashAccess.c based on BonexFlashAccess.c based on firmwareEraseProgram.v | |
| 4 * @author heinrichs weikamp gmbh | |
| 5 * @version V0.0.1 | |
| 6 * @date 20-July-2016 | |
| 7 * @version V0.0.1 | |
| 8 * @since 20-July-2016 | |
| 9 * @brief erase and program the STM32F4xx internal FLASH memory for compasss calib etc. | |
| 10 * based on firmwareEraseProgram.c from OSTC4 | |
| 11 * | |
| 12 @verbatim | |
| 13 ============================================================================== | |
| 14 ##### How to use ##### | |
| 15 ============================================================================== | |
| 16 | |
| 17 4 x 32 Byte with first block can not be 0xFFFFFFFF | |
| 18 | |
| 19 | |
| 20 | |
| 21 @endverbatim | |
| 22 ****************************************************************************** | |
| 23 * @attention | |
| 24 * | |
| 25 * <h2><center>© COPYRIGHT(c) 2015 heinrichs weikamp</center></h2> | |
| 26 * | |
| 27 ****************************************************************************** | |
| 28 */ | |
| 29 | |
| 30 /* Includes ------------------------------------------------------------------*/ | |
| 31 #include "RTE_FlashAccess.h" | |
| 32 #include "stdio.h" | |
| 33 | |
| 34 /** @addtogroup BONEXINFOSYSTEM | |
| 35 * @{ | |
| 36 */ | |
| 37 | |
| 38 /* Exported variables --------------------------------------------------------*/ | |
| 39 | |
| 40 /* Private types -------------------------------------------------------------*/ | |
| 41 /* taken from | |
| 42 * C:\Users\hw\STM32Cube\Repository\STM32Cube_FW_F3_V1.2.0\Projects\STM32F3-Discovery\Examples\FLASH\FLASH_EraseProgram | |
| 43 */ | |
| 44 | |
| 45 #define FLASH_SECTOR_SIZE_128KB (0x00020000) | |
| 46 #define FLASH_USER_START_ADDR (ADDR_FLASH_SECTOR_7) /* Start @ of user Flash area */ | |
| 47 #define FLASH_USER_END_ADDR (ADDR_FLASH_SECTOR_7 + FLASH_SECTOR_SIZE_128KB) /* End @ of user Flash area */ | |
| 48 | |
| 49 /* Base address of the Flash pages */ | |
| 50 | |
| 51 #define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base @ of Sector 0, 16 Kbytes */ | |
| 52 #define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base @ of Sector 1, 16 Kbytes */ | |
| 53 #define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base @ of Sector 2, 16 Kbytes */ | |
| 54 #define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base @ of Sector 3, 16 Kbytes */ | |
| 55 #define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base @ of Sector 4, 64 Kbytes */ | |
| 56 #define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base @ of Sector 5, 128 Kbytes */ | |
| 57 #define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base @ of Sector 6, 128 Kbytes */ | |
| 58 #define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base @ of Sector 7, 128 Kbytes */ | |
| 59 | |
| 60 | |
| 61 | |
| 62 | |
| 63 /* Private variables ---------------------------------------------------------*/ | |
| 64 | |
| 65 //static FLASH_EraseInitTypeDef EraseInitStruct; //Variable used for Erase procedure | |
| 66 | |
| 67 uint32_t Address = 0; | |
| 68 uint32_t PageError = 0; | |
| 69 __IO uint32_t data32 = 0 , MemoryProgramStatus = 0; | |
| 70 | |
| 71 /* Private function prototypes -----------------------------------------------*/ | |
| 72 //uint8_t BFA_eraseSectors(uint32_t SectorAddress, uint32_t NbSectors); | |
| 73 //uint8_t BFA_eraseSectorsAll(void); | |
| 74 uint8_t BFA_FindLastDataBlockAndSetAddress(void); | |
| 75 | |
| 76 /* Exported functions --------------------------------------------------------*/ | |
| 77 | |
|
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78 uint8_t BFA_readLastDataBlock(tfull32 *dataArray4) |
| 38 | 79 { |
| 80 uint8_t answer; | |
| 81 | |
| 82 answer = BFA_FindLastDataBlockAndSetAddress(); | |
| 83 if(answer != BFA_OK) | |
| 84 return answer; | |
| 85 | |
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86 dataArray4[0].Full32 = *(__IO uint32_t*)(Address + 0); |
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87 dataArray4[1].Full32 = *(__IO uint32_t*)(Address + 4); |
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88 dataArray4[2].Full32 = *(__IO uint32_t*)(Address + 8); |
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89 dataArray4[3].Full32 = *(__IO uint32_t*)(Address + 12); |
| 38 | 90 return BFA_OK; |
| 91 } | |
| 92 | |
| 93 | |
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94 uint8_t BFA_writeDataBlock(const tfull32 *dataArray4) |
| 38 | 95 { |
| 96 uint8_t answer; | |
| 97 uint32_t dataTest[4]; | |
| 98 uint32_t StartAddress; | |
| 99 | |
| 100 answer = BFA_FindLastDataBlockAndSetAddress(); | |
| 101 Address = Address + 16; | |
| 102 | |
| 103 if((answer == BFA_EMPTY) || (Address >= FLASH_USER_END_ADDR) || (Address < FLASH_USER_START_ADDR)) | |
| 104 Address = FLASH_USER_START_ADDR; | |
| 105 | |
| 106 dataTest[0] = *(__IO uint32_t*)(Address + 0); | |
| 107 dataTest[1] = *(__IO uint32_t*)(Address + 4); | |
| 108 dataTest[2] = *(__IO uint32_t*)(Address + 8); | |
| 109 dataTest[3] = *(__IO uint32_t*)(Address + 12); | |
| 110 | |
| 111 for(int i=0;i<4;i++) | |
| 112 { | |
| 113 if(dataTest[i] != 0xFFFFFFFF) | |
| 114 { | |
| 115 return 0; | |
| 116 // answer = BFA_eraseSectorsAll(); | |
| 117 // break; | |
| 118 } | |
| 119 else | |
| 120 answer = BFA_OK; | |
| 121 } | |
| 122 | |
| 123 // can I write? | |
| 124 if(answer != BFA_OK) | |
| 125 return answer; | |
| 126 | |
| 127 StartAddress = Address; | |
| 128 HAL_FLASH_Unlock(); | |
| 129 for(int i=0;i<4;i++) | |
| 130 { | |
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131 answer = HAL_FLASH_Program(TYPEPROGRAM_WORD, Address, dataArray4[i].Full32); |
| 38 | 132 Address = Address + 4; |
| 133 } | |
| 134 HAL_FLASH_Lock(); | |
| 135 Address = StartAddress; // back to start of this data set (for reading etc.) | |
| 136 return answer; | |
| 137 } | |
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138 uint16_t BFA_calc_Block_Checksum(const tfull32 *dataArray4) |
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139 { |
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140 uint16_t checksum = 0; |
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141 uint8_t loop = 0; |
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142 uint16_t* p_data = (uint16_t*)dataArray4; |
| 38 | 143 |
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144 for (loop = 0; loop < 6; loop++) // calc checksum across first 6 words */ |
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145 { |
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146 checksum += *p_data; |
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147 } |
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148 return checksum; |
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149 } |
| 38 | 150 |
| 151 /* Private functions ---------------------------------------------------------*/ | |
| 152 /* | |
| 153 uint8_t BFA_eraseSectorsAll(void) | |
| 154 { | |
| 155 return BFA_eraseSectors(FLASH_USER_START_ADDR, (FLASH_USER_END_ADDR - FLASH_USER_START_ADDR)/FLASH_SECTOR_SIZE_128KB); | |
| 156 } | |
| 157 | |
| 158 | |
| 159 uint8_t BFA_eraseSectors(uint32_t SectorAddress, uint32_t NbSectors) | |
| 160 { | |
| 161 if((NbSectors > 1) || (SectorAddress != FLASH_USER_START_ADDR)) | |
| 162 return 0; | |
| 163 | |
| 164 uint8_t answer; | |
| 165 uint32_t PageError = 0; | |
| 166 | |
| 167 HAL_FLASH_Unlock(); | |
| 168 | |
| 169 EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;//ERASE_SECTORS; | |
| 170 EraseInitStruct.Sector = SectorAddress; | |
| 171 EraseInitStruct.NbSectors = NbSectors; | |
| 172 | |
| 173 answer = HAL_FLASHEx_Erase(&EraseInitStruct, &PageError); | |
| 174 | |
| 175 HAL_FLASH_Lock(); | |
| 176 return answer; | |
| 177 } | |
| 178 */ | |
| 179 | |
| 180 uint8_t BFA_FindLastDataBlockAndSetAddress(void) | |
| 181 { | |
| 182 uint32_t StartAddress; | |
| 183 | |
| 184 // first part from here to the end | |
| 185 // there it should be, most likely at Address itself | |
| 186 if(Address == 0) | |
| 187 Address = FLASH_USER_END_ADDR - 16; | |
| 188 else | |
| 189 Address &= 0xFFFFFFF0; // align with 16Byte | |
| 190 | |
| 191 StartAddress = Address; | |
| 192 while (Address >= FLASH_USER_START_ADDR) | |
| 193 { | |
| 194 data32 = *(__IO uint32_t*)Address; | |
| 195 if(data32 != 0xFFFFFFFF) | |
| 196 { | |
| 197 return BFA_OK; | |
| 198 } | |
| 199 Address = Address - 16; | |
| 200 } | |
| 201 | |
| 202 // second part from the end to here | |
| 203 if(StartAddress == FLASH_USER_END_ADDR - 16) | |
| 204 return BFA_EMPTY; | |
| 205 | |
| 206 Address = FLASH_USER_END_ADDR - 16; | |
| 207 while (Address > StartAddress) | |
| 208 { | |
| 209 data32 = *(__IO uint32_t*)Address; | |
| 210 if(data32 != 0xFFFFFFFF) | |
| 211 { | |
| 212 return BFA_OK; | |
| 213 } | |
| 214 Address = Address - 16; | |
| 215 } | |
| 216 | |
| 217 // empty flash | |
| 218 return BFA_EMPTY; | |
| 219 } | |
| 220 /** | |
| 221 * @} | |
| 222 */ | |
| 223 | |
| 224 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/ | |
| 225 | |
| 226 |