GD32E103读写内部FLASH问题

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kzero9|

楼主 | 2022-4-11 17:28 | 只看该作者回帖奖励

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GD32E1023, flash, GD32, 读写, fm

想用GD32E103读写内部FLASH，一直不成功。下面是程序。谁能看看哪有问题。
//写函数

static void fmc_program(uint32_t start_addr,uint32_t data)
{
/* unlock the flash program/erase controller */
fmc_unlock();

uint32_t address = FMC_WRITE_START_ADDR+start_addr;
/* program flash */

fmc_word_program(address, data);

fmc_flag_clear(FMC_FLAG_END | FMC_FLAG_WPERR | FMC_FLAG_PGERR);

/* lock the main FMC after the program operation */
fmc_lock();
}

//擦除函数
static void fmc_erase_pages(void)
{
/* unlock the flash program/erase controller */
fmc_unlock();
/* clear all pending flags */
fmc_flag_clear(FMC_FLAG_END | FMC_FLAG_WPERR | FMC_FLAG_PGERR);
/* erase the flash pages */
fmc_page_erase(FMC_WRITE_START_ADDR);
fmc_flag_clear(FMC_FLAG_END | FMC_FLAG_WPERR | FMC_FLAG_PGERR);
/* lock the main FMC after the erase operation */
fmc_lock();
}

//保存数据
int save_config_params(uint32_t start_addr,uint32_t data)
{
if(data == NULL)
return -1;

//擦除FLASH
fmc_erase_pages();
//保存配置数据到Flash中
fmc_program(start_addr,data);

return 0;
}

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