无法进入中断

只看该作者 · 2014-8-2 11:18

TIMR8 的中断

也查了一下以前的资料,情况是

1.timr81_int.asm 中添加了 ljmp _Timer8_1_ISR_C
仍然不行

2万 · 2014-8-2 11:19

源代码呢

只看该作者 · 2014-8-2 11:20

#pragma interrupt_handler Timer8_1_ISR_C
void Timer8_1_ISR_C(void)
{
   static BYTE ucCnt = 0;
   ucCnt++;
   if(ucCnt == 100){
         ucCnt = 0;
         PRT1DR ^=  BIT_MASK6;

}
//return;
}

void main(void)
{

  M8C_EnableGInt ; // Uncomment this line to enable Global Interrupts
Timer8_1_WritePeriod(10);//vc3 = vc1/16/5/100 T unit = 1ms
  Timer8_WriteCompareValue(0x00);
Timer8_1_EnableInt();
Timer8_1_Start();

// Insert your main routine code here.
while(1){

}

2万 · 2014-8-2 11:23

你怎么配置的

只看该作者 · 2014-8-2 11:24

只看该作者 · 2014-8-2 11:26

_Timer8_1_ISR:

;@PSoC_UserCode_BODY@ (Do not change this line.)
;---------------------------------------------------
; Insert your custom assembly code below this banner
;---------------------------------------------------
; NOTE: interrupt service routines must preserve
; the values of the A and X CPU registers.

;---------------------------------------------------
; Insert your custom assembly code above this banner
;---------------------------------------------------
ljmp _Timer8_1_ISR_C
//_Timer8_1_ISR_C
;---------------------------------------------------
; Insert a lcall to a C function below this banner
; and un-comment the lines between these banners
;---------------------------------------------------

pRESERVE_CPU_CONTEXT
;lcall _My_C_Function
;RESTORE_CPU_CONTEXT

;---------------------------------------------------
; Insert a lcall to a C function above this banner
; and un-comment the lines between these banners
;---------------------------------------------------
;@PSoC_UserCode_END@ (Do not change this line.)

reti

2万 · 2014-8-2 11:28

static BYTE ucCnt = 0; 这一句应该定义成全局变量。

只看该作者 · 2014-8-2 11:29

嗯，你这里每次进入中断时都对 ucCnt 重新定义并赋值 0，这样 ucCnt 只能在 0 和 1 之间变化，不会到达 100.

2万 · 2014-8-2 12:09

改成这样试一下：
#include <m8c.h>       // part specific constants and macros
#include "PSoCAPI.h" // PSoC API definitions for all User Modules

static BYTE ucCnt;

#pragma interrupt_handler Timer8_1_ISR_C
void Timer8_1_ISR_C(void)
{
      ucCnt++;
   if(ucCnt == 100)
      {
      ucCnt = 0;
      PRT1DR ^= 0x40;
   }
}

void main(void)
{

      M8C_EnableGInt ; // Uncomment this line to enable Global Interrupts
      Timer8_1_WritePeriod(10);//vc3 = vc1/16/5/100 T unit = 1ms
      Timer8_1_WriteCompareValue(0x00);
      Timer8_1_EnableInt();
      Timer8_1_Start();

      while(1)
      {
               ;
      }

}