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MSP430读写擦除FLASH程序 天涯过客 发表于 2005-10-28 9:22:33
//参数:wAddr为地址,范围0x1000~0xFFFF
void ReadFlash(U16 wAddr,U8 *bBuf,U8 bLen) { while (bLen--) *bBuf++=*(U8 *)wAddr++; return; }
void WriteFlash(U16 wAddr,U8 *bBuf,U8 bLen) { U8 reg1,reg2; reg1=_BIC_SR(GIE);
reg2=IE1;IE1=0; while (bLen--) { while (FCTL3&BUSY); FCTL3 = FWKEY; FCTL1 =FWKEY+WRT; *(U8 *)wAddr++=*bBuf
while(FCTL3&BUSY); FCTL1 = FWKEY; FCTL3 = FWKEY+LOCK; } if(reg1&GIE) _BIS_SR(GIE); IE1=reg2; return; }
void EraseSectorFlash(U16 wAddr) { U8 reg1,reg2; reg1=_BIC_SR(GIE);
reg2=IE1;
IE1=0;
while(FCTL3&BUSY);
FCTL3 = FWKEY;
FCTL1 = FWKEY+ERASE;
*(U8 *)wAddr=0;
while(FCTL3&BUSY);
FCTL1 = FWKEY;
FCTL3 = FWKEY+LOCK;
if(reg1&GIE) _BIS_SR(GIE); IE1=reg2;
return; }
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