STM32F030RCT6的 TIM6定时器无法正常工作

只看该作者 · 2019-8-21 17:52

有没有大神帮忙看一下，什么问题，代码如下：
void TIM6_Init(void)
{
TIM_TimeBaseInitTypeDef       TIM_TimeBaseInitStructure;
NVIC_InitTypeDef             NVIC_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6, ENABLE);  //tim6时钟使能,APB时钟48M

TIM_TimeBaseInitStructure.TIM_Period = 500;
TIM_TimeBaseInitStructure.TIM_Prescaler = 48000-1;  //定时500ms
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0 ; //TIM_CKD_DIV1  分频系数为1
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数
TIM_TimeBaseInit(TIM6, &TIM_TimeBaseInitStructure);

NVIC_InitStructure.NVIC_IRQChannel = 17;//TIM6_DAC_IRQn //定时器6中断
NVIC_InitStructure.NVIC_IRQChannelPriority = 1; //优先级0
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

// TIM_ClearITPendingBit(TIM6,TIM_IT_Update);

TIM_ITConfig(TIM6,TIM_IT_Update,ENABLE); //允许定时器6更新中断
TIM_Cmd(TIM6,ENABLE); //使能定时器6
}

void TIM6_DAC_IRQHandler(void)
{
if(TIM_GetITStatus(TIM6,TIM_IT_Update) != RESET) //溢出中断
{
LED_TURN;
}
TIM_ClearITPendingBit(TIM6,TIM_IT_Update);  //清除中断标志位
//    TIM6->SR &= ~(1<<0);
// LED_TURN;
}
//==============以上是代码=============================

使用的是官网下载的 V1.5.0库，一直怀疑没有进入中断

;* File Name       : startup_stm32f0xx.s
;* Author          : MCD Application Team
;* Version          : V1.5.0
;* Date             : 05-December-2014
;* Description       : STM32F051 devices vector table for MDK-ARM toolchain.

  * @file stm32f0xx.h
  * @author  MCD Application Team
  * @version V1.5.0
  * @date 05-December-2014

只看该作者 · 2019-8-22 08:39

HAL库试一下

1万 · 2019-8-22 08:46

检查你的startup_stm32f030.s文件，确认下里面有没有TIM6_IRQHandler定时器中断，没有就换启动文件或者自己参考其它的添加试试

只看该作者 · 2019-8-22 10:31

yklstudent 发表于 2019-8-22 08:46
检查你的startup_stm32f030.s文件，确认下里面有没有TIM6_IRQHandler定时器中断，没有就换启动文件或者自己 ...

启动文件截取：
__Vectors    DCD    __initial_sp                ; Top of Stack
            DCD    Reset_Handler                ; Reset Handler
            DCD    NMI_Handler                   ; NMI Handler
            DCD    HardFault_Handler             ; Hard Fault Handler
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    SVC_Handler                   ; SVCall Handler
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    PendSV_Handler                ; PendSV Handler
            DCD    SysTick_Handler             ; SysTick Handler

            ; External Interrupts
            DCD    WWDG_IRQHandler             ; Window Watchdog
            DCD    PVD_IRQHandler                ; PVD through EXTI Line detect
            DCD    RTC_IRQHandler                ; RTC through EXTI Line
            DCD    FLASH_IRQHandler             ; FLASH
            DCD    RCC_IRQHandler                ; RCC
            DCD    EXTI0_1_IRQHandler          ; EXTI Line 0 and 1
            DCD    EXTI2_3_IRQHandler          ; EXTI Line 2 and 3
            DCD    EXTI4_15_IRQHandler          ; EXTI Line 4 to 15
            DCD    TS_IRQHandler                ; TS
            DCD    DMA1_Channel1_IRQHandler    ; DMA1 Channel 1
            DCD    DMA1_Channel2_3_IRQHandler    ; DMA1 Channel 2 and Channel 3
            DCD    DMA1_Channel4_5_IRQHandler    ; DMA1 Channel 4 and Channel 5
            DCD    ADC1_COMP_IRQHandler          ; ADC1, COMP1 and COMP2
            DCD    TIM1_BRK_UP_TRG_COM_IRQHandler ; TIM1 Break, Update, Trigger and Commutation
            DCD    TIM1_CC_IRQHandler          ; TIM1 Capture Compare
            DCD    TIM2_IRQHandler             ; TIM2
            DCD    TIM3_IRQHandler             ; TIM3
            DCD    TIM6_DAC_IRQHandler          ; TIM6 and DAC
            DCD    0                            ; Reserved
            DCD    TIM14_IRQHandler             ; TIM14
            DCD    TIM15_IRQHandler             ; TIM15
            DCD    TIM16_IRQHandler             ; TIM16
            DCD    TIM17_IRQHandler             ; TIM17
            DCD    I2C1_IRQHandler             ; I2C1
            DCD    I2C2_IRQHandler             ; I2C2
            DCD    SPI1_IRQHandler             ; SPI1
            DCD    SPI2_IRQHandler             ; SPI2
            DCD    USART1_IRQHandler             ; USART1
            DCD    USART2_IRQHandler             ; USART2
            DCD    0                            ; Reserved
            DCD    CEC_IRQHandler                ; CEC
            DCD    0                            ; Reserved

__Vectors_End

            EXPORT  WWDG_IRQHandler             [WEAK]
            EXPORT  PVD_IRQHandler                [WEAK]
            EXPORT  RTC_IRQHandler                [WEAK]
            EXPORT  FLASH_IRQHandler             [WEAK]
            EXPORT  RCC_IRQHandler                [WEAK]
            EXPORT  EXTI0_1_IRQHandler          [WEAK]
            EXPORT  EXTI2_3_IRQHandler          [WEAK]
            EXPORT  EXTI4_15_IRQHandler          [WEAK]
            EXPORT  TS_IRQHandler                [WEAK]
            EXPORT  DMA1_Channel1_IRQHandler    [WEAK]
            EXPORT  DMA1_Channel2_3_IRQHandler    [WEAK]
            EXPORT  DMA1_Channel4_5_IRQHandler    [WEAK]
            EXPORT  ADC1_COMP_IRQHandler          [WEAK]
            EXPORT  TIM1_BRK_UP_TRG_COM_IRQHandler [WEAK]
            EXPORT  TIM1_CC_IRQHandler          [WEAK]
            EXPORT  TIM2_IRQHandler             [WEAK]
            EXPORT  TIM3_IRQHandler             [WEAK]
            EXPORT  TIM6_DAC_IRQHandler          [WEAK]
            EXPORT  TIM14_IRQHandler             [WEAK]
            EXPORT  TIM15_IRQHandler             [WEAK]
            EXPORT  TIM16_IRQHandler             [WEAK]
            EXPORT  TIM17_IRQHandler             [WEAK]
            EXPORT  I2C1_IRQHandler             [WEAK]
            EXPORT  I2C2_IRQHandler             [WEAK]
            EXPORT  SPI1_IRQHandler             [WEAK]
            EXPORT  SPI2_IRQHandler             [WEAK]
            EXPORT  USART1_IRQHandler             [WEAK]
            EXPORT  USART2_IRQHandler             [WEAK]
            EXPORT  CEC_IRQHandler                [WEAK]

只能怀疑是库的版本太低了