uchar idata syn[8]={"24.5 6 0"};
void main(void)
{
initlcm();//初始化LCD
initmcu();//初始化单片机
for(;;)
{
if(ByteRead(0x0080+7)==3)//这里应该可以证明数据能否写进吧？
//检查最后一个数据是否是3，如果是从Flash中读取数据更新syn
{
sst_read();
}
else//否则往sst29sf040写入数据
{
sst_write();
}
syn_add();//syn增
syn_dec();//syn减
Write595((syn[1]<<4)|(syn[3]&0x0f),(syn[5]<<4)|(syn[7]&0x0f));
sst_write();
}
}
void ByteProgram(uchar data SrcByte,uint Dst)
{
XBYTE[0x0555] = 0xAA;
XBYTE[0x02AA] = 0x55;
XBYTE[0x0555] = 0xA0;
XBYTE[Dst] = SrcByte;
wait(1,9);//等待25us
}
int Erase_One_Sector(uint Dst)
{
/* Issue the Sector Erase command to 39SF040 */
XBYTE[0x0555] = 0xAA; /* set up address to be 555h */
/* write data 0xAA to the address */
XBYTE[0x02AA] = 0x55; /* set up address to be 2AAh */
/* write data 0x55 to the address */
XBYTE[0x0555] = 0x80; /* set up address to be 555h */
/* write data 0x80 to the address */
XBYTE[0x0555] = 0xAA; /* set up address to be 555h */
/* write data 0xAA to the address */
XBYTE[0x02AA] = 0x55; /* set up address to be 2AAh */
/* write data 0x55 to the address */
XBYTE[Dst] = 0x20; /* set up starting address to be erased */
/* write data 0x30 to the address */
wait(85,134); /* check DATABOOK for the most */
/* accurate value -- Tse */
}
uchar ByteRead(uint addr)
{
uchar GetData;
GetData = XBYTE[addr];
return(GetData);
}
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