前輩,我需要CH32V003J4M6開啟TIM2的PC2(T2CH2_)PWM輸出,這是個復(fù)用PIN,我不懂復(fù)用重映射配置,麻煩幫忙提供下資源范例或代碼.謝謝!

/********************************** (C) COPYRIGHT *******************************

?* File Name? ? ? ? ? : main.c

?* Author? ? ? ? ? ? ?: WCH

?* Version? ? ? ? ? ? : V1.0.0

?* Date? ? ? ? ? ? ? ?: 2022/08/08

?* Description? ? ? ? : Main program body.

*********************************************************************************

* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.

* Attention: This software (modified or not) and binary are used for?

* microcontroller manufactured by Nanjing Qinheng Microelectronics.

*******************************************************************************/

/*

?*@Note

?PWM output routine:

?TIM1_CH1(PD2)

?This example demonstrates that the TIM_CH1(PD2) pin outputs PWM in PWM mode 1

?and PWM mode 2.

*/

#include "debug.h"

/* PWM Output Mode Definition */

#define PWM_MODE1? ?0

#define PWM_MODE2? ?1

/* PWM Output Mode Selection */

//#define PWM_MODE PWM_MODE1

#define PWM_MODE PWM_MODE2

/*********************************************************************

?* @fn? ? ? TIM1_OutCompare_Init

?*

?* @brief? ?Initializes TIM1 output compare.

?*

?* @param? ?arr - the period value.

?*? ? ? ? ? psc - the prescaler value.

?*? ? ? ? ? ccp - the pulse value.

?*

?* @return? none

?*/

void TIM2_PWMOut_Init(u16 arr, u16 psc, u16 ccp)

{

? ? GPIO_InitTypeDef GPIO_InitStructure={0};

? ? TIM_OCInitTypeDef TIM_OCInitStructure={0};

? ? TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure={0};

? ? RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE );

? ? GPIO_PinRemapConfig(GPIO_PartialRemap1_TIM2, ENABLE);

? ? RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIM2, ENABLE );

? ? GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;

? ? GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

? ? GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

? ? GPIO_Init( GPIOC, &GPIO_InitStructure );

? ? TIM_TimeBaseInitStructure.TIM_Period = arr;

? ? TIM_TimeBaseInitStructure.TIM_Prescaler = psc;

? ? TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;

? ? TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;

? ? TIM_TimeBaseInit( TIM2, &TIM_TimeBaseInitStructure);

#if (PWM_MODE == PWM_MODE1)

? TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;

#elif (PWM_MODE == PWM_MODE2)

? ? TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;

#endif

? ? TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;

? ? TIM_OCInitStructure.TIM_Pulse = ccp;

? ? TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

? ? TIM_OC2Init( TIM2, &TIM_OCInitStructure );

? ? TIM_CtrlPWMOutputs(TIM2, ENABLE );

? ? TIM_OC2PreloadConfig( TIM2, TIM_OCPreload_Disable );

? ? TIM_ARRPreloadConfig( TIM2, ENABLE );

? ? TIM_Cmd( TIM2, ENABLE );

}

/*********************************************************************

?* @fn? ? ? main

?*

?* @brief? ?Main program.

?*

?* @return? none

?*/

int main(void)

{

? ? USART_Printf_Init(115200);

? ? printf("SystemClk:%d\r\n",SystemCoreClock);

? ? TIM2_PWMOut_Init( 100, 48000-1, 50 );

? ? while(1);

}

你好 ，參考這個。