[嵌入式]STM32 flash擦除读写

STM32 flash擦除读写

记录一下flash的擦除和读写操作，第一次玩嵌入式的板子

void flash_thread_entry(void *parameter)
{
        uint16_t my_add = 0x0011;
        uint32_t SectorError = 0;
        FLASH_EraseInitTypeDef My_Flash;
        HAL_FLASH_Unlock();

        My_Flash.TypeErase = FLASH_TYPEERASE_SECTORS;
        My_Flash.VoltageRange = FLASH_VOLTAGE_RANGE_3;
        My_Flash.Sector = 5;
        My_Flash.NbSectors = 6;

        if (HAL_FLASHEx_Erase(&My_Flash, &SectorError) != HAL_OK)
        {
            rt_kprintf("Erase error\r\n");
        }

        uint16_t Write_Flash_Data = my_add;
        uint32_t addr = ((uint32_t)0x08020000);
        HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, addr, Write_Flash_Data);

        HAL_FLASH_Lock();

        rt_kprintf("at address:0x%x, read value:0x%x\r\n", addr, *(__IO uint8_t*)addr);
        rt_thread_mdelay(500);

    for( ; ; ) {
        rt_thread_mdelay(500);
    }
}

环境是用的HAL库，STM32F2的板子