程序没有加入iap前,各项功能都很正常,加入iap写flash后iap功能正常,但串口就不能正常执行.
具体表现:在串口的通讯数据出错,好象频率错误,把pll去掉后也不对.
请指教!
uint8 iap(uint32 dst, uint32 src, uint32 no, uint8 sec1, uint8 sec2)
{
MAMCR = 0; // 关闭MAM
// PLLCON = 0; // 关闭PLL
// PLLFEED = 0xaa;
// PLLFEED = 0x55;
if(ReadParID() !=0){
return FALSE;
}
if(BootCodeID() != 0){
return FALSE;
}
if(SelSector(sec1, sec2) != 0){ // 选择扇区
return FALSE;
}
if(EraseSector(sec1, sec2) != 0){ // 擦除扇区
return FALSE;
}
if(BlankCHK(sec1, sec2) != 0){ // 查空扇区
return FALSE;
}
if(SelSector(sec1, sec2) != 0){
return FALSE;
}
if(RamToFlash(dst, src, no) != 0){
return FALSE;
}
if(BlankCHK(sec1, sec2) == 0){
return FALSE;
}
if(Compare(dst, src, no) != 0){ // 比较数据
return FALSE;
}
return TRUE;
}
uint8 iapTask(uint32 dst, uint32 src, uint32 no, uint8 sec1, uint8 sec2)
{
uint32 temp1;
//防止狗复位,喂数
//关中断
temp1 =VICIntEnable;
VICIntEnClr =temp1;
if (iap(dst, src, no, sec1, sec2)==0){
VICIntEnable =temp1;
/* PLLCON = 1; // 使能PLL
PLLFEED = 0xaa;
PLLFEED = 0x55;
while((PLLSTAT & (1 << 10)) == 0); //判断pll锁定
PLLCON = 3;
PLLFEED = 0xaa;
PLLFEED = 0x55;
*/
return FALSE;
}
VICIntEnable =temp1;
/*
PLLCON = 1; // 使能PLL
PLLFEED = 0xaa;
PLLFEED = 0x55;
while((PLLSTAT & (1 << 10)) == 0); //判断pll锁定
PLLCON = 3;
PLLFEED = 0xaa;
PLLFEED = 0x55;
*/
return TRUE;
}
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