AT32F421定时器3和15启用中断就进入Infinite_Loop，原厂支持一下

只看该作者 · 2021-10-3 07:59

/**
  ******************************************************************************
  * File : main.c
  * Version: V1.2.4
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "at32f4xx.h"
#include "at32_board.h"

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitType GPIO_InitStructure;
TMR_TimerBaseInitType  TMR_TMReBaseStructure = {0};
TMR_OCInitType  TMR_OCInitStructure = {0};
NVIC_InitType NVIC_InitStructure;

/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void AT32_NVIC_Init(void);
void AT32_TMR3_Init(void);

/* Private functions ---------------------------------------------------------*/

int main(void){
  AT32_NVIC_Init();
  RCC_Configuration();

  Delay_init();
  AT32_LEDn_Init(LED3);
  AT32_LEDn_OFF(LED3);

  AT32_TMR3_Init();
  TMR_INTConfig(TMR3, TMR_INT_CC1, ENABLE);

  TMR_Cmd(TMR3, ENABLE);/* TMR3 enable counter */
  while (1){
Delay_ms(100);
  }
}

void RCC_Configuration(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1PERIPH_TMR3, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2PERIPH_TMR1, ENABLE);
}

void AT32_NVIC_Init(void){
// NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
NVIC_InitStructure.NVIC_IRQChannel = TMR3_GLOBAL_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

/* TMR3 base configuration */
void AT32_TMR3_Init(void){
TMR_TimeBaseStructInit(&TMR_TMReBaseStructure);
TMR_TMReBaseStructure.TMR_Period = SystemCoreClock/10000-1;
TMR_TMReBaseStructure.TMR_DIV = 10000-1;
TMR_TMReBaseStructure.TMR_ClockDivision = 0;
TMR_TMReBaseStructure.TMR_CounterMode = TMR_CounterDIR_Up;
TMR_TimeBaseInit(TMR3, &TMR_TMReBaseStructure);
}

void TMR3_GLOBAL_IRQHandler(void){
AT32_LEDn_Toggle(LED3);
TMR_ClearITPendingBit(TMR3, TMR_INT_Overflow | TMR_INT_CC1 | TMR_INT_CC2 | TMR_INT_CC3 | TMR_INT_CC4 | TMR_INT_Trigger);
}

只看该作者 · 2021-10-3 11:36

找到原因了，原厂启动文件问题。
  .word  TMR1_BRK_UP_TRG_COM_IRQHandler    /* TMR1 Break UP TRG COM                      */
  .word  TMR1_CC_IRQHandler                /* TMR1 Capture Compare                      */
  .word  0                         /*增加一行                      */
  .word  TMR3_GLOBAL_IRQHandler             /* TMR3