那位大佬大神帮忙看一下为什么TIM6定时器延时不起作用

只看该作者 · 2019-9-11 16:19

#ifndef __TIM_H_
#define __TIM_H_

#include "stm32f0xx_tim.h"

void BSP_TIM6_Init(void);

#endif

#include "TIM.h"

void BSP_TIM6_Init()
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6,ENABLE);

TIM_TimeBaseInitStructure.TIM_Period = (1000-1);
TIM_TimeBaseInitStructure.TIM_Prescaler = (48-1);
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CKD_DIV1;
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM6,&TIM_TimeBaseInitStructure);

TIM_ITConfig(TIM6,TIM_IT_Update,ENABLE);

NVIC_InitStructure.NVIC_IRQChannel = TIM6_IRQn;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_InitStructure.NVIC_IRQChannelPriority = 1;
NVIC_Init(&NVIC_InitStructure);
TIM_Cmd(TIM6,ENABLE);

}

void TIM6_IRQHandler(void)
{
if(TIM_GetITStatus(TIM6,TIM_IT_Update) == SET)
{
TIM_ClearITPendingBit(TIM6,TIM_IT_Update); //清除更新中断标志位
MotorTick_Now ++;
}
}

/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/
uint32_t MotorTick_Now = 0;
uint32_t MotorTick_Trig = 0;
uint8_t MotorTrig_Flag = 0;

void delay(uint32_t xms)
{
__IO uint32_t i, j;
i = xms * 999;
while(i--)
{
j = 47;
while(j--);
}
}

/**

      @brief Main program.
      @param None
      @retval None / int main(void) { /!< At this stage the microcontroller clock setting is already configured, this is done through SystemInit() function which is called from startup file (startup_stm32f0xx.s) before to branch to application main. To reconfigure the default setting of SystemInit() function, refer to system_stm32f0xx.c file */ BSP_GPIO_Init(); BSP_TIM6_Init(); SysTick_Init(8); //滴答定时器延时初始化

// __set_PRIMASK(1);

/* Infinite loop */

while(1)
{
if(GPIO_ReadInputDataBit(INPUT_Port,SW_Pin) == SET )

{
GPIO_ResetBits(JK_Port,JK_Pin);
}
else
{
if(GPIO_ReadInputDataBit(INPUT_Port, DS_Pin) == RESET)
{
MotorTrig_Flag = 1;
}
if(MotorTrig_Flag == 1)
{
GPIO_ResetBits(JK_Port, JK_Pin);
MotorTick_Trig = 0;

            if(GPIO_ReadInputDataBit(SWs_Port, GPIO_Pin_2) ==0)
            {
                  MotorTick_Trig = 1000 * 10;
            }
            if(GPIO_ReadInputDataBit(SWs_Port, GPIO_Pin_3) ==0)
            {
                  MotorTick_Trig += 1000 * 60 * 2;
            }
            if(GPIO_ReadInputDataBit(SWs_Port, GPIO_Pin_4) == 0)
            {
                  MotorTick_Trig += 1000 * 60 * 4;
            }
            if(GPIO_ReadInputDataBit(SWs_Port, GPIO_Pin_5) == 0)
            {
                  MotorTick_Trig += 1000 * 60 * 8;
            }
            if(GPIO_ReadInputDataBit(SWs_Port, GPIO_Pin_6) == 0)
            {
                  MotorTick_Trig += 1000 * 60 * 16;
            }
            if(GPIO_ReadInputDataBit(SWs_Port, GPIO_Pin_7) == 0)
            {
                  MotorTick_Trig += 1000 * 60 * 32;
            }
            if(MotorTick_Now <= MotorTick_Trig)
            {
                  GPIO_SetBits(JK_Port, JK_Pin); //引脚输出1  继电器吸合
            }
         }
         else
         {
         MotorTick_Trig = 0;
         }
         GPIO_SetBits(JK_Port,JK_Pin);
         if(GPIO_ReadInputDataBit(INPUT_Port, DS_Pin) == RESET)       //压力
         {
            GPIO_ResetBits(JK_Port, JK_Pin);
         }

         if(GPIO_ReadInputDataBit(INPUT_Port, WS_Pin) == SET) //液位
         {
            GPIO_ResetBits(JK_Port, JK_Pin);
         }

      if(GPIO_ReadInputDataBit(INPUT_Port, DK_Pin) == RESET) //强制启动
         {
            GPIO_SetBits(JK_Port, JK_Pin);
         }
      }

      Delay_ms(10); //滴答定时器延时
   // delay(10); //while延时

// Delay_ms(10); //滴答定时器延时

   }

}