我的程序怎么也进 不了中断， 不知道怎么回事？

yangjingwei128

1. #include <hidef.h> /* common defines and macros */
   
2. #include "derivative.h" /* derivative-specific definitions */
   
3. 
   
4. #include <hidef.h> /* common defines and macros */
   
5. #include <MC9S12XS128.h> /* derivative information */
   
6. #pragma LINK_INFO DERIVATIVE "mc9s12xs128"
   
7. 
   
8. void SetBusClock(void)
   
9. {
   
10. CLKSEL=0x00; //禁止PLL
    
11. PLLCTL_PLLON=1; //turn on PLL
    
12. SYNR=0X43;
    
13. REFDV=0X81; //pllclock=2*20M*(1+SYNR)/(1+REFDV)=80MHz;
    
14. POSTDIV=0X00; //总线=40M 总线时钟= pllclock/2
    
15. _asm(nop);
    
16. _asm(nop);
    
17. while(!(CRGFLG_LOCK==1)); //当PLL稳定，系统允许调用
    
18. CLKSEL_PLLSEL =1; //使能PLL;
    
19. }
    
20. 
    
21. void Dly_ms(int ms) //{
    
22. int i,j;
    
23. for(i=0;i<ms;i++)
    
24. for(j=0;j<0x7ff;j++);
    
25. }
    
26. 
    
27. void main(void) {
    
28. /* put your own code here */
    
29. EnableInterrupts;
    
30. SetBusClock();
    
31. DDRB_DDRB0=1;
    
32. DDRB_DDRB7=1;
    
33. PIEJ_PIEJ7=1; //中断使能
    
34. PPSJ_PPSJ7=0; //上升沿触发
    
35. 
    
36. for(;;)
    
37. {
    
38. PTS=0X00;
    
39. Dly_ms(500);
    
40. PTS=0XA0; }
    
41. 
    
42. // for(;;) {
    
43. // _FEED_COP(); /* feeds the dog */
    
44. // } /* loop forever */
    
45. /* please make sure that you never leave main */
    
46. }
    
47. #pragma CODE_SEG __NEAR_SEG NON_BANKED
    
48. void interrupt 24 PortJ7RisingInterrupt(void)
    
49. {
    
50. PIFJ_PIFJ7=1; //清除标记位
    
51. PTP=0X00;
    
52. 
    
53. }
    
54. 
    

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yangjingwei128

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yangjingwei128

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