论坛 › STM8 › STM8s103的定时器4定时中断问题

moqiqi 发表于 2011-11-4 20:27:26

STM8s103的定时器4定时中断问题

定时器4初始化
void timer_init( void )
{
 TIM4_CNTR = 0x00;   //计数器
 TIM4_PSCR = 0x07;   //分频数128
 TIM4_ARR = 0xFA;   //自动重载值
 TIM4_SR = 0x00;
 TIM4_IER = 0x01;   //更新中断使能
 TIM4_CR1 = 0x01;   //使能计数器
}
@far @interrupt void Time4_20ms_interrupt( void )
{
 LED();
}
extern void _stext();     /* startup routine */
struct interrupt_vector const _vectab[] = {
 {0x82, (interrupt_handler_t)_stext}, /* reset */
 {0x82, NonHandledInterrupt}, /* trap  */
 {0x82, NonHandledInterrupt}, /* irq0  */
 {0x82, NonHandledInterrupt}, /* irq1  */
 {0x82, NonHandledInterrupt}, /* irq2  */
 {0x82, NonHandledInterrupt}, /* irq3  */
 {0x82, NonHandledInterrupt}, /* irq4  */
 {0x82, NonHandledInterrupt}, /* irq5  */
 {0x82, NonHandledInterrupt}, /* irq6  */
 {0x82, NonHandledInterrupt}, /* irq7  */
 {0x82, NonHandledInterrupt}, /* irq8  */
 {0x82, NonHandledInterrupt}, /* irq9  */
 {0x82, NonHandledInterrupt}, /* irq10 */
 {0x82, NonHandledInterrupt}, /* irq11 */
 {0x82, NonHandledInterrupt}, /* irq12 */
 {0x82, NonHandledInterrupt}, /* irq13 */
 {0x82, NonHandledInterrupt}, /* irq14 */
 {0x82, NonHandledInterrupt}, /* irq15 */
 {0x82, NonHandledInterrupt}, /* irq16 */
 {0x82, NonHandledInterrupt}, /* irq17 */
 {0x82, NonHandledInterrupt}, /* irq18 */
 {0x82, NonHandledInterrupt}, /* irq19 */
 {0x82, NonHandledInterrupt}, /* irq20 */
 {0x82, NonHandledInterrupt}, /* irq21 */
 {0x82, NonHandledInterrupt}, /* irq22 */
 {0x82, Time4_20ms_interrupt}, /* irq23 */
 {0x82, NonHandledInterrupt}, /* irq24 */
 {0x82, NonHandledInterrupt}, /* irq25 */
 {0x82, NonHandledInterrupt}, /* irq26 */
 {0x82, NonHandledInterrupt}, /* irq27 */
 {0x82, NonHandledInterrupt}, /* irq28 */
 {0x82, NonHandledInterrupt}, /* irq29 */
};
 
以上为定时器4及中断处理函数，中断映射函数，但是运行时却无法正常进中断

安 发表于 2011-11-5 11:34:33

RE:STM8s103的定时器4定时中断问题

如下定义：
#ifdef _COSMIC_
@far @interrupt void TIM4_UPD_OVF_IRQHandler (void) {
#else
void TIM4_UPD_OVF_IRQHandler (void) interrupt 23 {
#endif
        TIM4->SR1&=~TIM4_SR1_UIF;                // clear overflow flag
        return;
}

fghjhuang123 发表于 2015-3-25 12:02:17

main.c：

#include "stm8s103f2u.h"
//int a,b,c;
void initLED(void);
void initTIM4(void);

/*void delay_10us(int us);
void delay_ms(unsigned int ms);*/

@far @interrupt void TIM4light(void);
main()
{
        initLED();
        initTIM4();
        _asm("rim");
        TIM4_CR1|=0x01;
        while (1){
               
        }
}

void initLED(void){
        PC_DDR=0x70;
        PC_CR1=~0x70;
        PC_CR2=~0x70;
//        PC_ODR=0x70;
}

void initTIM4(void){
        TIM4_PSCR=0x07;
        TIM4_IER=0x01;
        TIM4_CNTR=255;
        TIM4_ARR=255;
}


中断向量表：

/*        BASIC INTERRUPT VECTOR TABLE FOR STM8 devices
*        Copyright (c) 2007 STMicroelectronics
*/
#include "stm8s103f2u.h"
int i;
typedef void @far (*interrupt_handler_t)(void);

struct interrupt_vector {
        unsigned char interrupt_instruction;
        interrupt_handler_t interrupt_handler;
};

@far @interrupt void NonHandledInterrupt (void)
{
return;
}

@far @interrupt void TIM4light (void)
{
       
        i++;
       
        if(i==61)
        { i=0;
                if(PC_ODR==0x70)
                {
                        PC_ODR=~0x70;
                }
                else
              {
                                  PC_ODR=0x70;
                                }
}
TIM4_SR=0x00;
        return;
}

extern void _stext();   /* startup routine */

struct interrupt_vector const _vectab[] = {
        {0x82, (interrupt_handler_t)_stext}, /* reset */
        {0x82, NonHandledInterrupt}, /* trap*/
        {0x82, NonHandledInterrupt}, /* irq0*/
        {0x82, NonHandledInterrupt}, /* irq1*/
        {0x82, NonHandledInterrupt}, /* irq2*/
        {0x82, NonHandledInterrupt}, /* irq3*/
        {0x82, NonHandledInterrupt}, /* irq4*/
        {0x82, NonHandledInterrupt}, /* irq5*/
        {0x82, NonHandledInterrupt}, /* irq6*/
        {0x82, NonHandledInterrupt}, /* irq7*/
        {0x82, NonHandledInterrupt}, /* irq8*/
        {0x82, NonHandledInterrupt}, /* irq9*/
        {0x82, NonHandledInterrupt}, /* irq10 */
        {0x82, NonHandledInterrupt}, /* irq11 */
        {0x82, NonHandledInterrupt}, /* irq12 */
        {0x82, NonHandledInterrupt}, /* irq13 */
        {0x82, NonHandledInterrupt}, /* irq14 */
        {0x82, NonHandledInterrupt}, /* irq15 */
        {0x82, NonHandledInterrupt}, /* irq16 */
        {0x82, NonHandledInterrupt}, /* irq17 */
        {0x82, NonHandledInterrupt}, /* irq18 */
        {0x82, NonHandledInterrupt}, /* irq19 */
        {0x82, NonHandledInterrupt}, /* irq20 */
        {0x82, NonHandledInterrupt}, /* irq21 */
        {0x82, NonHandledInterrupt}, /* irq22 */
        {0x82, TIM4light}, /* irq23 */
        {0x82, NonHandledInterrupt}, /* irq24 */
        {0x82, NonHandledInterrupt}, /* irq25 */
        {0x82, NonHandledInterrupt}, /* irq26 */
        {0x82, NonHandledInterrupt}, /* irq27 */
        {0x82, NonHandledInterrupt}, /* irq28 */
        {0x82, NonHandledInterrupt}, /* irq29 */
};

我的也进入不了中断，求大神！

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