main1.c

这是一个基于DSP的MP3应用的demo程序

#include "cpu_reg.h"
void main()
{


     asm("  STM #0000h,CLKMD ");  
     while(*(int *)CLKMD & 0x01 );
     asm("  STM #50c7h,CLKMD ");
/*  40c7h:5*clkin  =60
    50c7h:6*clkin  =101M
    8107h:9*clkin  =108
    7107h:8*clkin  =96
    
*/

     asm("  stm   #4000h, SWWSR ");
     //2 wait except for on-chip program 1
     asm("  stm   #00a0h, PMST  "); //MP/MC = 0, IPTR = 001,ovly=1  
     asm("  stm   #0802h, BSCR  "); 
     asm("  STM #0h,IMR ");
     
     asm("  STM #0010h,TCR  "); //关定时器
     asm("  STM #0186ah,PRD  ");//1ms
     asm("  STM #0C2fh,TCR  "); //TCR=最后四位
     asm("  STM #0008h,IFR  ");
     asm("  ORM #0008h,*(IMR) ");/*开时间中断*/
 
}

interrupt void int0()
{
}
interrupt void timer0()
{
}