[STM32F2]

GD32F207VC开发板无法输出互补PWM波形

[复制链接]
611|5
手机看帖
扫描二维码
随时随地手机跟帖
xiaobai032|  楼主 | 2018-11-14 19:01 | 显示全部楼层 |阅读模式
具体程序如下。使用高级时钟1.将PA8和PB13使能为互补PWM输出引脚、结果PA8输出一直为低。请各位帮我看一下。谢谢!

#include "gd32f20x.h"
#include <stdio.h>
#include "systick.h"

int compare ;


void TIM8_init()
{
  TIMER_BaseInitPara tim1_int;// ʱÖÓ1³õʼ»¯
        TIMER_BKDTInitPara tim1_DT; //ʱÖÓ1ËÀÇøʱ¼ä
        TIMER_OCInitPara   tim1_OC; // ʱÖÓ1ͨµÀÉèÖÃ
  tim1_int.TIMER_Period = 1200;// 120Mʱ¿ª¹ØƵÂÊ100k
        tim1_int.TIMER_Prescaler = 0;//¶¨Ê±Æ÷ʱÖÓΪ120M
  tim1_int.TIMER_ClockDivision = TIMER_CDIV_DIV1;//¶¨Ê±Æ÷ʱÖÓΪ120M
        tim1_int.TIMER_CounterMode = TIMER_COUNTER_UP;//ÏòÉϼÆÊý
        TIMER_BaseInit(TIMER1,&tim1_int);
       
        //ÅäÖÃËÀÇøʱ¼ä  ËÀÇøΪ0.1us
       
  tim1_DT.TIMER_ROSState = TIMER_ROS_STATE_ENABLE;
        tim1_DT.TIMER_IOSState = TIMER_IOS_STATE_ENABLE;
        tim1_DT.TIMER_LOCKLevel = TIMER_LOCK_LEVEL_OFF;
        tim1_DT.TIMER_DeadTime = 12;
        tim1_DT.TIMER_Break = TIMER_BREAK_DISABLE;
        tim1_DT.TIMER_BreakPolarity = TIMER_BREAK_POLARITY_LOW;
        tim1_DT.TIMER_OutAuto = TIMER_OUTAUTO_DISABLE ;
  TIMER_BKDTConfig(TIMER1,&tim1_DT);
       
        //ÉèÖÃͨµÀ1£¬Í¨µÀ1N
       
        tim1_OC.TIMER_OCMode = TIMER_OC_MODE_PWM1;//¼ÆÊýֵСÓÚÉ趨ֵΪÓÐЧµçƽ
        tim1_OC.TIMER_OutputState = TIMER_OUTPUT_STATE_ENABLE;//Êä³ö±È½ÏʹÄÜ
        tim1_OC.TIMER_OutputNState = TIMER_OUTPUTN_STATE_ENABLE;//Êä³ö±È½Ï·´ÏòʹÄÜ
        tim1_OC.TIMER_Pulse = compare;//±È½ÏÖµ
        tim1_OC.TIMER_OCPolarity = TIMER_OC_POLARITY_HIGH;//ÓÐЧµçƽΪ¸ßµçƽ
        tim1_OC.TIMER_OCNPolarity = TIMER_OCN_POLARITY_HIGH;//ÓÐЧµçƽΪ¸ßµçƽ
        tim1_OC.TIMER_OCIdleState = TIMER_OC_IDLE_STATE_SET;//¿ÕÏÐʱÒý½Å״̬
        tim1_OC.TIMER_OCNIdleState = TIMER_OCN_IDLE_STATE_RESET;//¿ÕÏÐʱÒý½Å×´
  TIMER_OC1_Init(TIMER1,&tim1_OC);
        TIMER_OC1_Preload(TIMER1,TIMER_OC_PRELOAD_ENABLE);//×Ô¶¯×°ÔØʹÄÜ

  TIMER_Enable(TIMER1,ENABLE);
        TIMER_CtrlPWMOutputs(TIMER1,ENABLE);//¿ªÆôON£¬OCÊä³ö£¨BDTR£©
//        TIMER_CC_PreloadControl(TIMER1,ENABLE);
}


void  PWM_GPIO_init()
{
  GPIO_InitPara GPIO_InitPara;
        RCC_APB2PeriphClock_Enable(RCC_APB2PERIPH_TIMER1,ENABLE);
        RCC_APB2PeriphClock_Enable(RCC_APB2PERIPH_GPIOA | RCC_APB2PERIPH_GPIOB, ENABLE);
        GPIO_InitPara.GPIO_Pin = GPIO_PIN_8;
        GPIO_InitPara.GPIO_Mode = GPIO_MODE_AF_PP;
        GPIO_InitPara.GPIO_Speed = GPIO_SPEED_50MHZ;
        GPIO_Init(GPIOA,&GPIO_InitPara);//ÅäÖÃPA7Ϊ¸´ÓÃÍÆÍì TM8-CH1N
  GPIO_InitPara.GPIO_Pin = GPIO_PIN_13;
        GPIO_InitPara.GPIO_Mode = GPIO_MODE_AF_PP;
        GPIO_InitPara.GPIO_Speed = GPIO_SPEED_50MHZ;
  GPIO_Init(GPIOB,&GPIO_InitPara);//ÅäÖÃPC6Ϊ¸´ÓÃÍÆÍì TM8-CH1

}

int main(void)
{
        compare = 800;
        TIM8_init();
        PWM_GPIO_init();
       
        while(1)
        {
    compare = 800;
                TIMER_Compare1Config(TIMER1,compare);
       
        }
   
}
zhuomuniao110| | 2018-11-14 22:45 | 显示全部楼层
发错版块了。

使用特权

评论回复
zhuomuniao110| | 2018-11-14 22:45 | 显示全部楼层
另外这个系列官网给的有例子吧

使用特权

评论回复
wowu| | 2018-11-15 13:03 | 显示全部楼层
亲 你发错版块了吧

使用特权

评论回复
heimaojingzhang| | 2018-11-15 14:09 | 显示全部楼层
这个用的是st的库吧

使用特权

评论回复
xiaoqizi| | 2018-11-21 15:48 | 显示全部楼层
用两通道 示例应该不少

使用特权

评论回复
发新帖 我要提问
您需要登录后才可以回帖 登录 | 注册

本版积分规则

15

主题

48

帖子

2

粉丝