EEPW论坛

//外部晶振
void Clock_Init( void )
{
 uchar temp_stabset, temp_stabwait;
 OSTS = 0x05;
 OSCCTL = 0x40|0x01; 
 MSTOP = 0;
 temp_stabset = 0x1f;
 do{
  temp_stabwait = OSTC;
  temp_stabwait &= temp_stabset;
 }while(temp_stabwait != temp_stabset);
 MCM = 0x05;
 RSTOP = 1;
 XTSTART = 0;
 PCC &= (uchar)~(0x07 | 0x10);
 PCC |= 0x01;
 LSRSTOP = 0;
}

//内部晶振
void Clock_Init( void )
{
 OSCCTL = 0x00;
 MSTOP = 1;
 RSTOP = 0;
 MCM = 0x00; 
 XTSTART = 0;
 PCC &= (uchar)~(0x07 | 0x10);
 PCC |= 0x01;
 LSRSTOP = 0;
}