关于hardfault - 平头弟

关于hardfault

2019-03-23 18:34发布

站内问答 / STM32/STM8

6585 6

本人小白，刚开始自学stm32单片机，用的MDK4.72，采用J-link下载程序。
程序目的是用3路PWM控制RBG三 {MOD}灯，定时中断让灯切换颜 {MOD}。可是程序循环的一会儿就不在循环，卡住了，
于是我就开始调试，采用软件调试时，它能运行，可是用J-link调试时就跳入到了HardFault_Handler()！
查了好多资料，讲的好抽象。希望大神能帮助我一把，感激不敬！程序不复杂，如下：
#include "stm32f10x.h"
u8 num=0,cha=0;
void RCC_Confguration()
{
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOB|RCC_APB2Periph_AFIO ,ENABLE);
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2|RCC_APB1Periph_TIM3|RCC_APB1Periph_TIM4,ENABLE);
}
void GPIO_Confguration()
{
      GPIO_InitTypeDef GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
      void Timer_Confguration(u16 shu,u16 fenpin )
{
      TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

TIM_DeInit(TIM2);
TIM_DeInit(TIM3);

TIM_TimeBaseStructure.TIM_Period = shu;
TIM_TimeBaseStructure.TIM_Prescaler = fenpin;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
      TIM_TimeBaseStructure.TIM_Period = shu;
TIM_TimeBaseStructure.TIM_Prescaler = fenpin;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

      TIM_DeInit(TIM4);

TIM_TimeBaseStructure.TIM_Period = 50000;
TIM_TimeBaseStructure.TIM_Prescaler = 71;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);

TIM_ClearFlag(TIM4, TIM_FLAG_Update);

TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);



TIM_Cmd(TIM4, ENABLE);
      }

void PWM_Confguration()
{
         TIM_OCInitTypeDef TIM_OCInitStructure;

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
         TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
         TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
         TIM_OC3Init(TIM3, &TIM_OCInitStructure);

         TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
            TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
         TIM_OC4Init(TIM3, &TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
            TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
         TIM_OC2Init(TIM2, &TIM_OCInitStructure);

         TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Enable);
   TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);
         TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Enable);

            TIM_Cmd(TIM2, ENABLE);
            TIM_Cmd(TIM3, ENABLE);
                     }

int main()
{


            NVIC_InitTypeDef  NVIC_InitStructure;
      SystemInit();
      RCC_Confguration();
      GPIO_Confguration();
      Timer_Confguration(2000,0);
      PWM_Confguration();
      NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
      NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;
      NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
      NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
      NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
      NVIC_Init(&NVIC_InitStructure);
      while(1)；

      }

void TIM4_IRQHandler(void)
{
      if(TIM_GetITStatus(TIM4,TIM_IT_Update)==SET)
      {

               TIM_ClearITPendingBit(TIM4,TIM_IT_Update);
   num++;
               if(20==num)
                     {
                     num=0;
                     cha++;
                     if(8==cha)
                              cha=1;
                     if(cha==1){
         TIM2->CCR2 = 1000;
         TIM3->CCR3 = 1900;
         TIM3->CCR4 = 1900;
                     }
                     else if(cha==2){
                     TIM2->CCR2 = 1900;
         TIM3->CCR3 = 1000;
         TIM3->CCR4 = 1900;
                     }
                     else if(cha==3){
                     TIM2->CCR2 = 1900;
         TIM3->CCR3 = 1900;
         TIM3->CCR4 = 1000;
                     }
                     else if(cha==4){
                     TIM2->CCR2 = 1900;
         TIM3->CCR3 = 1000;
         TIM3->CCR4 = 1000;
                     }
                     else  if(cha==5){
                     TIM2->CCR2 = 1000;
         TIM3->CCR3 = 1900;
         TIM3->CCR4 = 1000;
                     }
                     else if(cha==6){
                     TIM2->CCR2 = 1000;
         TIM3->CCR3 = 1000;
         TIM3->CCR4 = 1900;
                     }
                     else if(cha==7){
                     TIM2->CCR2 = 1000;
         TIM3->CCR3 = 1000;
         TIM3->CCR4 = 1000;
                     }
               }

      }
      TIM_ClearITPendingBit(TIM4,TIM_IT_Update);
}
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6条回答

1楼-- · 2019-03-24 01:17

精彩回答 2 元偷偷看……

2楼-- · 2019-03-24 06:17

sjtitr 发表于 2015-6-10 09:25
所谓硬fault，就是硬伤，来源于其他类型的fault。因为你没有对某fault设置异常处理，所以那个fault就升级为硬伤了。具体一定要参考手册，查看fault寄存器，检查是哪种fault产生并升级了。

能不能分步骤具体跟我讲讲，我查了资料还是没有解决，折磨了我好几天。

3楼-- · 2019-03-24 09:45

正如二楼所言，hardfault，是其他类型的fault没有处理导致的。你可以把其他的异常都使能，看看会发生哪个异常。

4楼-- · 2019-03-24 10:55

精彩回答 2 元偷偷看……

5楼-- · 2019-03-24 11:29

一般都是堆栈空间问题导致。

6楼-- · 2019-03-24 17:16

zhaojun_xf 发表于 2015-6-11 09:56
一般都是堆栈空间问题导致。

启动文件里有0x00000400耶，为什么别人程序比我的还要复杂都可以。

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