GD32F207VC开发板无法输出互补PWM波形

只看该作者 · 2018-11-14 19:05

本人使用GD32F207VC开发板无法输出互补PWM波形。程序使用高级定时器时钟1，将PA8和PB11设为互补PWM输出引脚。具体程序如下。请各位帮我看一下。谢谢！程序编译无措。

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

int compare ;

void TIM8_init()
{
  TIMER_BaseInitPara tim1_int;// Ê±ÖÓ1³õÊ¼»¯
TIMER_BKDTInitPara tim1_DT; //Ê±ÖÓ1ËÀÇøÊ±¼ä
TIMER_OCInitPara tim1_OC; // Ê±ÖÓ1Í¨µÀÉèÖÃ
  tim1_int.TIMER_Period = 1200;// 120MÊ±¿ª¹ØÆµÂÊ100k
tim1_int.TIMER_Prescaler = 0;//¶¨Ê±Æ÷Ê±ÖÓÎª120M
  tim1_int.TIMER_ClockDivision = TIMER_CDIV_DIV1;//¶¨Ê±Æ÷Ê±ÖÓÎª120M
tim1_int.TIMER_CounterMode = TIMER_COUNTER_UP;//ÏòÉÏ¼ÆÊý
TIMER_BaseInit(TIMER1,&tim1_int);

//ÅäÖÃËÀÇøÊ±¼ä  ËÀÇøÎª0.1us

  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);

//ÉèÖÃÍ¨µÀ1£¬Í¨µÀ1N

tim1_OC.TIMER_OCMode = TIMER_OC_MODE_PWM1;//¼ÆÊýÖµÐ¡ÓÚÉè¶¨ÖµÎªÓÐÐ§µçÆ½
tim1_OC.TIMER_OutputState = TIMER_OUTPUT_STATE_ENABLE;//Êä³ö±È½ÏÊ¹ÄÜ
tim1_OC.TIMER_OutputNState = TIMER_OUTPUTN_STATE_ENABLE;//Êä³ö±È½Ï·´ÏòÊ¹ÄÜ
tim1_OC.TIMER_Pulse = compare;//±È½ÏÖµ
tim1_OC.TIMER_OCPolarity = TIMER_OC_POLARITY_HIGH;//ÓÐÐ§µçÆ½Îª¸ßµçÆ½
tim1_OC.TIMER_OCNPolarity = TIMER_OCN_POLARITY_HIGH;//ÓÐÐ§µçÆ½Îª¸ßµçÆ½
tim1_OC.TIMER_OCIdleState = TIMER_OC_IDLE_STATE_SET;//¿ÕÏÐÊ±Òý½Å×´Ì¬
tim1_OC.TIMER_OCNIdleState = TIMER_OCN_IDLE_STATE_RESET;//¿ÕÏÐÊ±Òý½Å×´
  TIMER_OC1_Init(TIMER1,&tim1_OC);
TIMER_OC1_Preload(TIMER1,TIMER_OC_PRELOAD_ENABLE);//×Ô¶¯×°ÔØÊ¹ÄÜ

  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);//ÅäÖÃPA7Îª¸´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);//ÅäÖÃPC6Îª¸´ÓÃÍÆÍì TM8-CH1

}

int main(void)
{
compare = 800;
TIM8_init();
PWM_GPIO_init();

while(1)
{
compare = 800;
TIMER_Compare1Config(TIMER1,compare);

}

}

只看该作者 · 2018-11-15 18:35

chenyilin 发表于 2018-11-15 12:14
您好，这是对于PA8,PB11 这两个引脚在207中的功能，您可以去查看datasheet

PA8是TM1的1通道啊。程序用的是PB13，上面文字写错了。PB13是TM1的1N通道啊。有什么设置问题吗？谢谢！

只看该作者 · 2018-11-15 21:02

本帖最后由 xiaobai032 于 2018-11-15 21:29 编辑

chenyilin 发表于 2018-11-15 19:20
PB11 和PA8,一个是CH1,一个是CH4，他们只是能输出PWM ，不代表能输出互补通道，对于互补通道的引脚说明应 ...

是PB13，不是PB11.PB13是CH1N

只看该作者 · 2018-11-16 10:20

xiaobai032 发表于 2018-11-15 21:02
是PB13，不是PB11.PB13是CH1N

您好，您可以到官网上下载最新的关于207的datasheet，上面有做标明，

如果您使用的是TIM1 那么修改为timer 0 试试。

只看该作者 · 2018-11-16 20:41

本帖最后由 xiaobai032 于 2018-11-16 20:51 编辑

chenyilin 发表于 2018-11-16 10:20
您好，您可以到官网上下载最新的关于207的datasheet，上面有做标明，

您好，我用的是跟板子一起提供的库函数。库函数中时钟只有1到14.没有时钟0.那应该怎么办。你提供的图应该时钟编号为0-13.与我的库函数不符？怎么办？改为timer0直接报错。

只看该作者 · 2018-11-20 11:33

我这边按照您的库改了一个代码你测试一下;

/* Includes ------------------------------------------------------------------*/
#include <gd32f20x.h>
#include "systick.h"
#include <stdio.h>

/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void GPIO_Configuration(void);
void TIM_Configuration(void);

/* Private functions ---------------------------------------------------------*/
/**
  * @brief  Configure system clocks.
  * @param  None
  * @retval None
  */
void RCC_Configuration(void)
{
/* GPIOA, GPIOB, GPIOC and AF clocks enable */
RCC_APB2PeriphClock_Enable( RCC_APB2PERIPH_GPIOA | RCC_APB2PERIPH_GPIOB |
                              RCC_APB2PERIPH_GPIOC | RCC_APB2PERIPH_AF, ENABLE);
}

/**
  * @brief  Configure the GPIO ports.
  * @param  None
  * @retval None
  */
void GPIO_Configuration(void)
{
GPIO_InitPara GPIO_InitStructure;

/* Configure PC7 as PP output */
GPIO_InitStructure.GPIO_Pin = GPIO_PIN_7;
GPIO_InitStructure.GPIO_Mode  = GPIO_MODE_OUT_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;
GPIO_Init(GPIOC,&GPIO_InitStructure);

/* Configure PA8 PA9 PA10(TIMER1 CH1 CH2 CH3) as alternate function */
GPIO_InitStructure.GPIO_Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStructure.GPIO_Mode  = GPIO_MODE_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;
GPIO_Init(GPIOA,&GPIO_InitStructure);

/* Configure PB13 PB14 PB15(TIMER1 CH1N CH2N CH3N) as alternate function */
GPIO_InitStructure.GPIO_Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStructure.GPIO_Mode  = GPIO_MODE_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;
GPIO_Init(GPIOB,&GPIO_InitStructure);
}

/**
  * @brief  Configure the TIMER peripheral.
  * @param  None
  * @retval None
  */
void TIM_Configuration(void)
{
/* -----------------------------------------------------------------------
TIMER1 Configuration to:
Generate 3 complementary PWM signals with 3 different duty cycles:
TIMER1CLK is fixed to SystemCoreClock, the TIMER1 Prescaler is equal
to 6000 so the TIMER1 counter clock used is 20KHz.

The Three Duty cycles are computed as the following description:
The channel 1 duty cycle is set to 25% so channel 1N is set to 75%.
The channel 2 duty cycle is set to 50% so channel 2N is set to 50%.
The channel 3 duty cycle is set to 75% so channel 3N is set to 25%.
  ----------------------------------------------------------------------- */
TIMER_BaseInitPara TIM_TimeBaseStructure;
TIMER_OCInitPara  TIM_OCInitStructure;

/* TIMER1 clock enable */
RCC_APB2PeriphClock_Enable(RCC_APB2PERIPH_TIMER1, ENABLE);

/* TIMER1  configuration */
TIMER_DeInit(TIMER1);
TIM_TimeBaseStructure.TIMER_Prescaler    = 5999;
TIM_TimeBaseStructure.TIMER_CounterMode = TIMER_COUNTER_UP;
TIM_TimeBaseStructure.TIMER_Period       = 15999;
TIM_TimeBaseStructure.TIMER_ClockDivision = TIMER_CDIV_DIV1;
TIMER_BaseInit(TIMER1,&TIM_TimeBaseStructure);

/* CH1,CH2 and CH3 Configuration in PWM mode */
TIM_OCInitStructure.TIMER_OCMode    = TIMER_OC_MODE_PWM1;
TIM_OCInitStructure.TIMER_OCPolarity = TIMER_OC_POLARITY_HIGH;
TIM_OCInitStructure.TIMER_OCNPolarity  = TIMER_OCN_POLARITY_HIGH;
TIM_OCInitStructure.TIMER_OutputState  = TIMER_OUTPUT_STATE_ENABLE;
TIM_OCInitStructure.TIMER_OutputNState = TIMER_OUTPUTN_STATE_ENABLE;
TIM_OCInitStructure.TIMER_OCIdleState  = TIMER_OC_IDLE_STATE_RESET;

TIM_OCInitStructure.TIMER_Pulse = 3999;
TIMER_OC1_Init(TIMER1, &TIM_OCInitStructure);
TIMER_OC1_Preload(TIMER1,TIMER_OC_PRELOAD_DISABLE);

TIM_OCInitStructure.TIMER_Pulse = 7999;
TIMER_OC2_Init(TIMER1, &TIM_OCInitStructure);
TIMER_OC2_Preload(TIMER1,TIMER_OC_PRELOAD_DISABLE);

TIM_OCInitStructure.TIMER_Pulse = 11999;
TIMER_OC3_Init(TIMER1, &TIM_OCInitStructure);
TIMER_OC3_Preload(TIMER1,TIMER_OC_PRELOAD_DISABLE);

/* TIMER1 output enable */
TIMER_CtrlPWMOutputs(TIMER1,ENABLE);
/* Auto-reload preload enable */
TIMER_CARLPreloadConfig(TIMER1,ENABLE);
/* TIMER enable counter*/
TIMER_Enable( TIMER1, ENABLE );
}

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main()
{
RCC_Configuration();
GPIO_Configuration();
SysTick_Configuration();
TIM_Configuration();

while(1)
{
      GPIO_SetBits(GPIOC,GPIO_PIN_7);
      Delay_1ms(1000);
      GPIO_ResetBits(GPIOC, GPIO_PIN_7);
      Delay_1ms(1000);
}
}

这是测试PA8 -PB13引脚的波形图

只看该作者 · 2018-11-20 18:23

kkkkk

只看该作者 · 2018-11-20 18:23

metalbei 发表于 2018-11-20 18:23
kkkkk

kkk
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只看该作者 · 2018-11-20 19:49

chenyilin 发表于 2018-11-20 11:33
我这边按照您的库改了一个代码你测试一下;

/* Includes -------------------------------------------- ...

问题已经找到，万分感谢！！因为我的gpio配置中含有rcc时钟设置，里面开启了timer1时钟。但在main函数中把gpio函数放在了timer1设置函数之后。将两个函数位置颠倒，就有输出了。是不是timer1的rcc时钟不开，配置不了timer1？

只看该作者 · 2018-11-22 10:19

xiaobai032 发表于 2018-11-20 19:49
问题已经找到，万分感谢！！因为我的gpio配置中含有rcc时钟设置，里面开启了timer1时钟。但在main函数中 ...

嗯嗯~ 真棒。你说的是对的

只看该作者 · 2018-11-25 10:46

这个跟定时器的应用有关的

只看该作者 · 2018-11-30 21:41

xiaobai032 发表于 2018-11-20 19:49
问题已经找到，万分感谢！！因为我的gpio配置中含有rcc时钟设置，里面开启了timer1时钟。但在main函数中 ...

原来是这样，我也是听你说的才反应过来了，确实是这个问题。

只看该作者 · 2018-11-30 21:41

chenyilin 发表于 2018-11-22 10:19
嗯嗯~ 真棒。你说的是对的

初始化的时候一定要注意的。