//51單片機(jī)用的程序,有兩個,如下
//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
unsigned long htod(unsigned long convdata)//將一個十六進(jìn)制數(shù)據(jù)轉(zhuǎn)換成十進(jìn)制數(shù)據(jù)
{                      //十六進(jìn)制數(shù)據(jù)最大不能超過:0x05f5e0ff
unsigned long temp1,temp2;
unsigned char a1;

temp1=0;
a1=convdata/10000000;
temp1=a1;
temp1=temp1<<4;

temp2=convdata%10000000;
a1=temp2/1000000;
temp1 |=a1;
temp1=temp1<<4;

temp2=temp2%1000000;
a1=temp2/100000;
temp1 |=a1;
temp1=temp1<<4;

temp2=temp2%100000;
a1=temp2/10000;
temp1 |=a1;
temp1=temp1<<4;

temp2=temp2%10000;
a1=temp2/1000;
temp1 |=a1;
temp1=temp1<<4;

temp2=temp2%1000;
a1=temp2/100;
temp1 |=a1;
temp1=temp1<<4;

temp2=temp2%100;
a1=temp2/10;
temp1 |=a1;
temp1=temp1<<4;

a1=temp2%10;
temp1 |=a1;

return temp1;
}

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
unsigned long dtoh(unsigned long convdata)//將一個十進(jìn)制數(shù)據(jù)轉(zhuǎn)換為十六進(jìn)制數(shù)據(jù)
{
  unsigned long temp;
                           
  temp=((convdata>>28)&0x0000000f)*10000000;

  temp=temp+((convdata>>24)&0x0000000f)*1000000;

  temp=temp+((convdata>>20)&0x0000000f)*100000;

  temp=temp+((convdata>>16)&0x0000000f)*10000;

  temp=temp+((convdata>>12)&0x0000000f)*1000;

  temp=temp+((convdata>>8)&0x0000000f)*100;

  temp=temp+((convdata>>4)&0x0000000f)*10;

  temp=temp+(convdata&0x0000000f);

  return temp;
}
//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// zxw36792116@hotmail.com