RobotHardware-UESTC/Hardware/银星机器人底盘/PiRobot-YH_Firmware v1.0/STM32/BSPLIB/flash.c

#ifdef __cplusplus
extern "C"
{
#endif

#include "flash.h"

u16 Flash_ReadHalfWord(u32 faddr)
{
    uint16_t val = 0;
    faddr = faddr + FLASH_SAVE_ADDR;
    val = *(uint16_t *)faddr;

    return val;
}

u32 Flash_ReadWord(u32 faddr)
{
    uint16_t val = 0;
    faddr = faddr + FLASH_SAVE_ADDR;
    val = *(uint32_t *)faddr;

    return val;
}

#define PageSize 0x400

void Flash_EnableWrite()
{
    /*FLASH_Unlock();
    FLASH_ErasePage(FLASH_SAVE_ADDR);
    CLEAR_BIT(FLASH->CR, FLASH_CR_PER);*/
    FLASH_Unlock();
    FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);
    FLASH_ErasePage(FLASH_SAVE_ADDR);
    // FLASH_ErasePage(FLASH_SAVE_ADDR + PageSize);
}

void Flash_DisableWrite()
{
    FLASH_Lock();
}

u32 Flash_WriteHalfWord(u32 faddr, u16 data)
{
    faddr = faddr + FLASH_SAVE_ADDR;

    return FLASH_ProgramHalfWord(faddr, data);
}

u32 Flash_WriteWord(u32 faddr, u32 data)
{
    faddr = faddr + FLASH_SAVE_ADDR;
    return FLASH_ProgramWord(faddr, data);
}

#ifdef __cplusplus
}
#endif