我刚写了一个简单的测试程序，有点疑问就是为什么运行后 在for循环里设断点，程序停不住啊，定时中断里可以。第一次用这个模板，请各位多多指教哦～～ 下面是程序：： #include <hidef.h> /* common defines and macros */
#include <mc9s12dp256.h> /* derivative information */
#pragma LINK_INFO DERIVATIVE "mc9s12dp256b"
void Timer0_init(){
TIOS_IOS0 = 1;
TSCR1_TEN = 1;
TSCR2 = 0x07;
TCTL2_OL0 = 0;
TCTL2_OM0 = 0;
TC0 = 6250;//150ms
TIE_C0I = 1;
}
void main(void) {
/* put your own code here */
uchar i;
DDRA = 0xff;
PORTA = 0xff;
Timer0_init();
EnableInterrupts; for(;;)
{
i++;
if(i==255){
i= 0;
}
} /* wait forever */
/* please make sure that you never leave this function */
} uchar t = 0;
#pragma CODE_SEG NON_BANKED
#pragma TRAP_PROC
void timer0_interrupt(){
uchar flag;
static uint cnt;
flag = TFLG1;
TC0 = TC0 + 6250;
cnt++;
if(cnt==10){
t = ~t;
PORTA =~ PORTA;
}
}
#pragma CODE_SEG DEFAULT | 
