CH32V203整片擦除函数，末尾有个诡异的延迟实现，单纯的判断标志位还不行

eric2013

这个确实有点奇怪，手册上没找到说明

[C] 纯文本查看 复制代码

/*********************************************************************
 * @fn      FLASH_EraseAllPages
 *
 * @brief   Erases all FLASH pages.
 *
 * @return  FLASH Status - The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
 *        FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
 */
FLASH_Status FLASH_EraseAllPages(void)
{
    FLASH_Status status = FLASH_COMPLETE;

    status = FLASH_WaitForLastOperation(EraseTimeout);
    if(status == FLASH_COMPLETE)
    {
        FLASH->CTLR |= CR_MER_Set;
        FLASH->CTLR |= CR_STRT_Set;

        status = FLASH_WaitForLastOperation(EraseTimeout);

        FLASH->CTLR &= CR_MER_Reset;
    }
#if defined (CH32V20x_D8) || defined (CH32V20x_D8W)
        FLASH_EraseAll_Delay(180000);
#else
        FLASH_EraseAll_Delay(150000);
#endif
    return status;
}

tovinz

看沁恒的手册时不时有让人头大的时候。我印象比较深的是在手册里面说明某些功能不同批次之间会有差异，要查看芯片上的批次号