用107VC进行IAP在线升级,上位机每次发1000个字节,直到把整个APP代码发送完成,我能够接收一次就写一次flash,然后下一次再接收1000个字节,再写一次flash么?void STMFLASH_Write(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite)
{
u32 secpos;
u16 secoff;
u16 secremain;
u16 i;
u32 offaddr;
if(WriteAddr<STM32_FLASH_BASE||(WriteAddr>=(STM32_FLASH_BASE+1024*STM32_FLASH_SIZE)))return;
FLASH_Unlock();
offaddr=WriteAddr-STM32_FLASH_BASE;
secpos=offaddr/STM_SECTOR_SIZE;
secoff=(offaddr%STM_SECTOR_SIZE)/2;
secremain=STM_SECTOR_SIZE/2-secoff;
if(NumToWrite<=secremain)secremain=NumToWrite;
while(1)
{
STMFLASH_Read(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM_SECTOR_SIZE/2);
for(i=0;i<secremain;i++)
{
if(STMFLASH_BUF[secoff+i]!=0XFFFF)break;
}
if(i<secremain)
{
FLASH_ErasePage(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE);
for(i=0;i<secremain;i++)
{
STMFLASH_BUF[i+secoff]=pBuffer[i];
}
STMFLASH_Write_NoCheck(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM_SECTOR_SIZE/2);
}else STMFLASH_Write_NoCheck(WriteAddr,pBuffer,secremain);
if(NumToWrite==secremain)break;
else
{
secpos++;
secoff=0;
pBuffer+=secremain;
WriteAddr+=secremain*2;
NumToWrite-=secremain;
if(NumToWrite>(STM_SECTOR_SIZE/2))secremain=STM_SECTOR_SIZE/2;
else secremain=NumToWrite;
}
};
FLASH_Lock();
}
我定义了一个u8 RX_BUF【1000】用来接收每次传过来的1000个字节,但每次发送完之后都无法运行APP程序。写地址是iap_write_appbin((FLASH_APP1_ADDR+(cishu*1000)),RX_BUF,recvlen);
cishu为接收次数,接收一次就加1,目测是写flash出错了,但是没找到原因。
请大神指点迷津。
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给你我以前写的IAP上下位机,有兴趣的话,可以参考看看
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