最近在做bootloader在程序运行到flashread之后就停止了，不知道为啥，大家帮忙看下啊
[mw_shl_code=c,true]void FlashWrite(u32 addr,u16 *pbuffer,u16 num) { u16 num_sector; //在第几页 u16 offset_sector; //在一页的偏移量 u16 num_last; //剩下的半字 u16 i; FLASH_Unlock(); num_sector = (addr - STM32_FLASH_BASE) / STM_SECTOR_SIZE; //获取第几页 offset_sector = ((addr - STM32_FLASH_BASE) % STM_SECTOR_SIZE) / 2; //获取偏移量，16个字节为单位 num_last = STM_SECTOR_SIZE / 2 - offset_sector; //求出剩下的半字 PUT("falsh unlock "); //解锁 if(num <= num_last) num_last = num; //可以一次写完 for(;;) //开始不停的写 { PUT("flash_1"); FlashRead(num_sector * STM_SECTOR_SIZE + STM32_FLASH_BASE,FlashBuffer,STM_SECTOR_SIZE / 2); //读出一页 PUT("xxzz"); for(i = 0;i < num_last;i++) { PUT("flash_2"); if(FlashBuffer[offset_sector + i] != 0xffff) break; } if(i < num_last) //需要擦除 { FLASH_ErasePage (num_sector * STM_SECTOR_SIZE + STM32_FLASH_BASE); //擦除 for(i = 0;i < num_last;i++) { FlashBuffer[offset_sector + i] = pbuffer; //把要写入的数据填入数组 } PUT("flash_3"); FlashWriteNoCheck(num_sector * STM_SECTOR_SIZE + STM32_FLASH_BASE,FlashBuffer,STM_SECTOR_SIZE / 2); //写整个扇区 }else //不需要擦除 { FlashWriteNoCheck(addr,pbuffer,num_last); //直接将要写入的数据写入flash } if(num_last == num) break; //写完后就跳出 else //没有写完继续 { num_sector += 1; //页加一 offset_sector = 0; //偏移为0 pbuffer += num_last; addr += num_last * 2; num -= num_last; //调整要写入的数量 if(num > (STM_SECTOR_SIZE / 2)) num_last = STM_SECTOR_SIZE / 2; else num_last = num; //调整num_last } } FLASH_Lock(); //上锁 } [/mw_shl_code] 在 [mw_shl_code=c,true]FlashRead(num_sector * STM_SECTOR_SIZE + STM32_FLASH_BASE,FlashBuffer,STM_SECTOR_SIZE / 2); //读出一页 运行之后，调试时并没有出现xxzz [/mw_shl_code]