新手问个MC9S08DZ60flash擦写的问题

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楼主 | 2012-5-3 15:12 | 只看该作者回帖奖励

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flash, MC9S08DZ60, ST, AD, address

#include <MC9S08DZ60.h>

//初始化
void Flash_Init(void) {
  FCDIV=0x31;
  FPROT=0xFF;
  FCNFG=0x00;
  FSTAT = FSTAT | (FSTAT_FPVIOL | FSTAT_FACCERR);
  if(!FCDIV&0x80)
  {
FCDIV_DIVLD = 1;
  }
  while(!FSTAT&0x80);
}
//erase
void Flash_erase(unsigned int * address_1 ){
  unsigned int * address;
  if((FSTAT_FPVIOL==1)||(FSTAT_FACCERR==1)){
  FSTAT=0x30;
  }
  address = (unsigned int *) address_1;
  (* address) =0x00;
  FCMD = 0x40;          //Mass Erase
  FSTAT = 0x80;
do{

  _asm nop; _asm  nop;                                                                                           _asm nop;
  _asm nop;
}
  while( !(FSTAT & 0x80));
  while(!FSTAT_FCCF);
  }

  //写入数据

void Flash_write(unsigned int * __far address_1){
unsigned int * __far address;

address = (unsigned int * __far ) address_1;
  if((FSTAT_FPVIOL==1)||(FSTAT_FACCERR==1)){
  FSTAT=0x30;
  }
FCMD=0x20;
  * address = 0x12;

  FSTAT_FCBEF=1;
  FSTAT = 0x80;
  do{

  _asm nop;
  _asm nop;
  _asm nop;
  _asm nop;
  }
  while( !(FSTAT & 0x80));
  while(!FSTAT_FCBEF);
  while(!FSTAT_FCCF);
}

以上是我自己写的一段代码，想求问下为什么写入flash 0x12这个数据不成功呢？谢谢各位了

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