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Copy pathflash.c
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121 lines (111 loc) · 4.84 KB
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#include <stdio.h>
#include <stm32f4xx.h>
#include <stm32f4xx_flash.h>
#include "flash.h"
/* Base address of the Flash sectors */
#define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base @ of Sector 0, 16 Kbytes */
#define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base @ of Sector 1, 16 Kbytes */
#define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base @ of Sector 2, 16 Kbytes */
#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base @ of Sector 3, 16 Kbytes */
#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base @ of Sector 4, 64 Kbytes */
#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base @ of Sector 5, 128 Kbytes */
#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base @ of Sector 6, 128 Kbytes */
#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base @ of Sector 7, 128 Kbytes */
#define ADDR_FLASH_SECTOR_8 ((uint32_t)0x08080000) /* Base @ of Sector 8, 128 Kbytes */
#define ADDR_FLASH_SECTOR_9 ((uint32_t)0x080A0000) /* Base @ of Sector 9, 128 Kbytes */
#define ADDR_FLASH_SECTOR_10 ((uint32_t)0x080C0000) /* Base @ of Sector 10, 128 Kbytes */
#define ADDR_FLASH_SECTOR_11 ((uint32_t)0x080E0000) /* Base @ of Sector 11, 128 Kbytes */
static const uint32_t flash_info_table[26] = {
ADDR_FLASH_SECTOR_0, FLASH_Sector_0,
ADDR_FLASH_SECTOR_1, FLASH_Sector_1,
ADDR_FLASH_SECTOR_2, FLASH_Sector_2,
ADDR_FLASH_SECTOR_3, FLASH_Sector_3,
ADDR_FLASH_SECTOR_4, FLASH_Sector_4,
ADDR_FLASH_SECTOR_5, FLASH_Sector_5,
ADDR_FLASH_SECTOR_6, FLASH_Sector_6,
ADDR_FLASH_SECTOR_7, FLASH_Sector_7,
ADDR_FLASH_SECTOR_8, FLASH_Sector_8,
ADDR_FLASH_SECTOR_9, FLASH_Sector_9,
ADDR_FLASH_SECTOR_10, FLASH_Sector_10,
ADDR_FLASH_SECTOR_11, FLASH_Sector_11,
ADDR_FLASH_SECTOR_11 + 0x20000, 0,
};
uint32_t flash_get_sector_info(uint32_t addr, uint32_t *start_addr, uint32_t *size) {
if (addr >= flash_info_table[0]) {
for (int i = 0; i < 24; i += 2) {
if (addr < flash_info_table[i + 2]) {
if (start_addr != NULL) {
*start_addr = flash_info_table[i];
}
if (size != NULL) {
*size = flash_info_table[i + 2] - flash_info_table[i];
}
return flash_info_table[i + 1];
}
}
}
return 0;
}
#if 0
/**
* @brief Gets the sector of a given address
* @param None
* @retval The sector of a given address
*/
uint32_t flash_get_sector(uint32_t addr) {
if ((addr < ADDR_FLASH_SECTOR_1) && (addr >= ADDR_FLASH_SECTOR_0)) {
return FLASH_Sector_0;
} else if ((addr < ADDR_FLASH_SECTOR_2) && (addr >= ADDR_FLASH_SECTOR_1)) {
return FLASH_Sector_1;
} else if ((addr < ADDR_FLASH_SECTOR_3) && (addr >= ADDR_FLASH_SECTOR_2)) {
return FLASH_Sector_2;
} else if ((addr < ADDR_FLASH_SECTOR_4) && (addr >= ADDR_FLASH_SECTOR_3)) {
return FLASH_Sector_3;
} else if ((addr < ADDR_FLASH_SECTOR_5) && (addr >= ADDR_FLASH_SECTOR_4)) {
return FLASH_Sector_4;
} else if ((addr < ADDR_FLASH_SECTOR_6) && (addr >= ADDR_FLASH_SECTOR_5)) {
return FLASH_Sector_5;
} else if ((addr < ADDR_FLASH_SECTOR_7) && (addr >= ADDR_FLASH_SECTOR_6)) {
re
5E0A
turn FLASH_Sector_6;
} else if ((addr < ADDR_FLASH_SECTOR_8) && (addr >= ADDR_FLASH_SECTOR_7)) {
return FLASH_Sector_7;
} else if ((addr < ADDR_FLASH_SECTOR_9) && (addr >= ADDR_FLASH_SECTOR_8)) {
return FLASH_Sector_8;
} else if ((addr < ADDR_FLASH_SECTOR_10) && (addr >= ADDR_FLASH_SECTOR_9)) {
return FLASH_Sector_9;
} else if ((addr < ADDR_FLASH_SECTOR_11) && (addr >= ADDR_FLASH_SECTOR_10)) {
return FLASH_Sector_10;
} else {
return FLASH_Sector_11;
}
}
#endif
void flash_write(uint32_t flash_dest, const uint32_t *src, uint32_t num_word32) {
// unlock
FLASH_Unlock();
// Clear pending flags (if any)
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
// Device voltage range supposed to be [2.7V to 3.6V], the operation will be done by word
if (FLASH_EraseSector(flash_get_sector_info(flash_dest, NULL, NULL), VoltageRange_3) != FLASH_COMPLETE) {
/* Error occurred while sector erase.
User can add here some code to deal with this error */
return;
}
/* Program the user Flash area word by word ********************************/
for (int i = 0; i < num_word32; i++) {
if (FLASH_ProgramWord(flash_dest, *src) == FLASH_COMPLETE)
{
flash_dest += 4;
src += 1;
}
else
{
/* Error occurred while writing data in Flash memory.
User can add here some code to deal with this error */
return;
}
}
// lock
FLASH_Lock();
}