STM32F030输出不了二分频的24MHZ的PWM

只看该作者 · 2016-1-9 15:48

帮我看一下程序
include "time.h"
#include "led.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;
uint16_t TimerPeriod = 0;
uint16_t Channel1Pulse = 0, Channel2Pulse = 0, Channel3Pulse = 0, Channel4Pulse = 0;
void TIM_Config(void)
{

GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM14, ENABLE);
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOB, ENABLE);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;// | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  GPIO_PinAFConfig(GPIOB, GPIO_PinSource1, GPIO_AF_0);

void TIM_PWM_Config(void)

{


TimerPeriod = (SystemCoreClock/2000000) -1 ;

  Channel1Pulse = (uint16_t) (((uint32_t) 5 * ( TimerPeriod - 1)) / 10);

  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM14 , ENABLE);

  TIM_TimeBaseStructure.TIM_Prescaler =0 ;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  /* Time ¶¨Ê±ÉèÖÃÎªÉÏÉýÑØ¼ÆËãÄ£Ê½*/

  TIM_TimeBaseStructure.TIM_Period = 0;//TimerPeriod;
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
  TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
  TIM_TimeBaseInit(TIM14, &TIM_TimeBaseStructure);

  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
  TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
  TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;

TIM_OCInitStructure.TIM_Pulse = Channel1Pulse;//Ê¹ÄÜÆµµÀ1ÅäÖÃ
  TIM_OC1Init(TIM14, &TIM_OCInitStructure);

  TIM_Cmd(TIM14, ENABLE);

//  /* TIM1 Ö÷Êä³öÊ¹ÄÜ */
  TIM_CtrlPWMOutputs(TIM14, ENABLE);
//  TIM_ITConfig(TIM3,TIM_IT_CC1,ENABLE);
//// .NVIC_IRQChannel=TIM3_IRQN;
//// NVIC_Init
}

只看该作者 · 2016-1-10 21:50

这程序编译通过了吗，少个 } 吧

STM32F030输出不了 二分频的24MHZ的PWM

STM32F030输出不了二分频的24MHZ的PWM