64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/* Includes ----------------------------------------------------------------- */
|
||
#include "bsp/flash.h"
|
||
|
||
#include <main.h>
|
||
#include <string.h>
|
||
|
||
/* Private define ----------------------------------------------------------- */
|
||
/* Private macro ------------------------------------------------------------ */
|
||
/* Private typedef ---------------------------------------------------------- */
|
||
/* Private variables -------------------------------------------------------- */
|
||
/* Private function -------------------------------------------------------- */
|
||
/* Exported functions ------------------------------------------------------- */
|
||
|
||
/// @brief 擦除指定的Flash扇区
|
||
/// @param sector 扇区编号，0~7对应Bank1的扇区
|
||
void BSP_Flash_EraseSector(uint32_t sector) {
|
||
FLASH_EraseInitTypeDef flash_erase;
|
||
uint32_t sector_error;
|
||
|
||
// 仅支持sector 0~7，属于Bank1
|
||
if (sector < 8) {
|
||
flash_erase.TypeErase = FLASH_TYPEERASE_SECTORS;
|
||
flash_erase.Banks = FLASH_BANK_1;
|
||
flash_erase.Sector = sector;
|
||
flash_erase.NbSectors = 1;
|
||
flash_erase.VoltageRange = FLASH_VOLTAGE_RANGE_3;
|
||
|
||
HAL_FLASH_Unlock();
|
||
FLASH_WaitForLastOperation(HAL_MAX_DELAY, FLASH_BANK_1);
|
||
HAL_FLASHEx_Erase(&flash_erase, §or_error);
|
||
HAL_FLASH_Lock();
|
||
}
|
||
}
|
||
|
||
/// @brief 写入指定地址的字节数据到Flash
|
||
/// @param address Flash地址，必须是32字节对齐
|
||
/// @param buf 指向要写入的数据缓冲区
|
||
/// @param len 要写入的字节数，必须是32的倍数
|
||
void BSP_Flash_WriteBytes(uint32_t address, const uint8_t *buf, size_t len) {
|
||
HAL_FLASH_Unlock();
|
||
while (len > 0) {
|
||
uint8_t flash_word[32];
|
||
size_t write_len = (len >= 32) ? 32 : len;
|
||
memset(flash_word, 0xFF, 32);
|
||
memcpy(flash_word, buf, write_len);
|
||
|
||
// 地址需32字节对齐
|
||
uint32_t aligned_addr = address & ~0x1F;
|
||
HAL_FLASH_Program(FLASH_TYPEPROGRAM_FLASHWORD, aligned_addr, (uint32_t)flash_word);
|
||
|
||
address += write_len;
|
||
buf += write_len;
|
||
len -= write_len;
|
||
}
|
||
HAL_FLASH_Lock();
|
||
}
|
||
|
||
/// @brief 从指定地址读取字节数据到缓冲区
|
||
/// @param address Flash地址，必须是32字节对齐
|
||
/// @param buf 指向要读取数据的缓冲区
|
||
/// @param len 要读取的字节数，必须是32的倍数
|
||
void BSP_Flash_ReadBytes(uint32_t address, void *buf, size_t len) {
|
||
memcpy(buf, (void *)address, len);
|
||
} |