void Erase_Page(unsigned short int addr)
{unsigned char ss;
unsigned short int flash_error;
flash_error = 0x00;
FEEADR = addr & 0xFE00; // set address
FEEMOD |=0x08; //enable the erase and write commands.
FEECON = 0x05; // page erase command
ss = FEESTA&0x01;
while (!ss && (flash_error++<=2000)) ss = FEESTA&0x01; // wait data read ready
}
unsigned short int read_flash_word(unsigned short int addr)
{unsigned char ss;
unsigned short int flash_error;
flash_error = 0x00;
FEEMOD =0x00; //关闭页面，禁止修改
FEEADR = addr; // set address
FEECON = 0x07;//FEECON = 0x01; // single read command
ss = FEESTA&0x01;
while (!ss && (flash_error++<=2000)) ss = FEESTA&0x01; // wait data read ready
FEEMOD =0x00; //关闭页面，禁止修改
flash_error = FEEDAT;
return(flash_error); // one byte data
}
void write_flash_word(unsigned short int addr, unsigned short int *word, unsigned short int count)
{ unsigned short int erased_page, i;
unsigned short int flash_error;
unsigned char ss;
erased_page = 0x01; //页面起始地址的低九位应该为0，设置为1表示开始就需要页面清空
for(i=0; i<count; i++)
{
if (erased_page!=(addr&0xFE00))
{
Erase_Page(addr);
erased_page = addr&0xFE00;
}
FEEADR = addr++; addr++; // set address //地址必须 “+ 2”
FEEDAT = *word; word++; // set data value
FEECON = 0x03; //FEECON = 0x02; // write command
flash_error = 0x00;
ss = FEESTA&0x01;
while (!ss && (flash_error++<=2000)) ss = FEESTA&0x01; // wait data read ready
}
FEEMOD =0x00; //关闭页面，禁止修改
}
执行上面的写操作，程序就飞了，中断也乱了！求教！ |
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