片子是8037，写的程序如下。目的是定时（1秒）控制一个发光二极管亮一次，但是在亮了11次后，EVM板上的6个二极管都复位（全亮）了，我原先在初始化程序里设置了六个管子是熄灭的。后来把时间改成5秒，结果亮了2次后，又复位了。也就是说在程序执行一定时间后就不执行了。请帮我找找问题所在吧。谢谢
/***********************************************
*功能：GPIOA0口驱动的发光二极管每个1秒钟闪烁一次
*芯片：8037
************************************************/
#include "MC56F803x.h"
#include "SUB.h"
/*函数名：delay()*/
/*形参：dtime */
/*作用：有效延时1ms */
void delay (unsigned int dtime)
{
unsigned int i;
for(;dtime>0;dtime--)
{
for(i=0;i<124;i++)
{
;
}
}
}
/*函数名：initgpioA() */
/*作用：初始化程序*/
void initgpioA ()
{
asm(bfclr #$0002,X:COP_CTRL);
asm(bfclr #$0001,X:GPIO_A_PEREN);
asm(bfclr #$0002,X:GPIO_A_PEREN);
asm(bfclr #$0004,X:GPIO_A_PEREN);
asm(bfclr #$0008,X:GPIO_A_PEREN);
asm(bfclr #$0010,X:GPIO_A_PEREN);
asm(bfclr #$0020,X:GPIO_A_PEREN);
asm(bfset #$0001,X:GPIO_A_DDIR);
asm(bfset #$0002,X:GPIO_A_DDIR);
asm(bfset #$0004,X:GPIO_A_DDIR);
asm(bfset #$0008,X:GPIO_A_DDIR);
asm(bfset #$0010,X:GPIO_A_DDIR);
asm(bfset #$0020,X:GPIO_A_DDIR);
asm(bfclr #$0001,X:GPIO_A_DATA);
asm(bfclr #$0002,X:GPIO_A_DATA);
asm(bfclr #$0004,X:GPIO_A_DATA);
asm(bfclr #$0008,X:GPIO_A_DATA);
asm(bfclr #$0010,X:GPIO_A_DATA);
asm(bfclr #$0020,X:GPIO_A_DATA); } /*函数名：main() */
/*作用：主程序*/
void main (void)
{
initgpioA ();
while(1)
{
asm(bfchg #$0001,X:GPIO_A_DATA);
delay(1000); } }
下面是MC56F803x_vector.asm文件的一部分。我在调试时看到程序停到
MC56F803x_intRoutine:
debughlt
nop 处。
下面是完整的MC56F803x_vector.asm文件。 ; sample code ; interrupt vectors for MC56F803x
section interrupt_routines
org p:
MC56F803x_intRoutine:
debughlt
nop
nop
rti
; illegal instruction interrupt($04)
MC56F803x_illegal:
debughlt
nop
nop
rti
; hardware stack overflow interrupt ($08)
MC56F803x_HWSOverflow:
debughlt
nop
nop
rti
; misaligned long word access interrupt ($0A)
MC56F803x_misalign:
debughlt
nop
nop
rti
; PLL lost of lock interrupt ($22)
MC56F803x_PLL:
debughlt
nop
nop
rti
endsec
section interrupt_vectors
org p:
global FMC56F803x_intVec FMC56F803x_intVec: jsr >Finit_MC56F803x_ ; RESET ($00)
jsr >MC56F803x_intRoutine ; COP Watchdog reset ($02)
jsr >MC56F803x_illegal ; illegal instruction ($04)
jsr >MC56F803x_intRoutine ; software interrupt 3 ($06)
jsr >MC56F803x_HWSOverflow ; hardware stack overflow ($08)
jsr >MC56F803x_misalign ; misaligned long word access ($0A)
jsr >MC56F803x_intRoutine ; EOnCE step counter ($0C)
jsr >MC56F803x_intRoutine ; EOnCE breakpoint unit 0 ($0E)
jsr >MC56F803x_intRoutine ; EOnCE trace buffer ($10)
jsr >MC56F803x_intRoutine ; EOnCE transmit register empty ($12)
jsr >MC56F803x_intRoutine ; EOnCE receive register full ($14)
jsr >MC56F803x_intRoutine ; software interrupt 2 ($16)
jsr >MC56F803x_intRoutine ; software interrupt 1 ($18)
jsr >MC56F803x_intRoutine ; software interrupt 0 ($1A)
jsr >MC56F803x_intRoutine ; reserved ($1C)
jsr >MC56F803x_intRoutine ; reserved ($1E)
jsr >MC56F803x_intRoutine ; Low Voltage Detector (power sense) ($20)
jsr >MC56F803x_PLL ; PLL ($22)
jsr >MC56F803x_intRoutine ; HFM Error Interrupt ($24)
jsr >MC56F803x_intRoutine ; HFM Command Complete ($26)
jsr >MC56F803x_intRoutine ; HFM Command, Data, and Address Buffers Empty ($28)
jsr >MC56F803x_intRoutine ; reserved ($2A)
jsr >MC56F803x_intRoutine ; GPIO D ($2C)
jsr >MC56F803x_intRoutine ; GPIO C ($2E)
jsr >MC56F803x_intRoutine ; GPIO B ($30)
jsr >MC56F803x_intRoutine ; GPIO A ($32)
jsr >MC56F803x_intRoutine ; SPI Receiver Full ($34)
jsr >MC56F803x_intRoutine ; SPI Transmtter Empty ($36)
jsr >MC56F803x_intRoutine ; SCI Transmitter Empty ($38)
jsr >MC56F803x_intRoutine ; SCI Transmitter Idle ($3A)
jsr >MC56F803x_intRoutine ; SCI Reserved ($3C)
jsr >MC56F803x_intRoutine ; SCI Receiver Error ($3E)
jsr >MC56F803x_intRoutine ; SCI Receiver Full ($40)
jsr >MC56F803x_intRoutine ; I2C Arbitration Lost ($42)
jsr >MC56F803x_intRoutine ; I2C Byte Transfer ($44)
jsr >MC56F803x_intRoutine ; I2C Address Detect ($46)
jsr >MC56F803x_intRoutine ; Timer Channel 0 ($48)
jsr >MC56F803x_intRoutine ; Timer Channel 1 ($4A)
jsr >MC56F803x_intRoutine ; Timer Channel 2 ($4C)
jsr >MC56F803x_intRoutine ; Timer Channel 3 ($4E)
jsr >MC56F803x_intRoutine ; ADCA Conversion Complete ($50)
jsr >MC56F803x_intRoutine ; ADCB Conversion Complete ($52)
jsr >MC56F803x_intRoutine ; ADC Zero Crossing or Limit Error ($54)
jsr >MC56F803x_intRoutine ; Reload PWM ($56)
jsr >MC56F803x_intRoutine ; PWM fault ($58)
jsr >MC56F803x_intRoutine ; SW interrupt Low Priority ($5A)
endsec
end | 
