jcky001 发表于 2024-11-13 10:45

GD32E230 PWM配置

GD32E230 PWM配置
//GPIO配置
void PWM_gpio_config(void)
{
    rcu_periph_clock_enable(RCU_GPIOA);

gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_1);
    gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_1);
    gpio_af_set(GPIOB, GPIO_AF_1, GPIO_PIN_1);
gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_9);
    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_9);
gpio_af_set(GPIOA, GPIO_AF_2, GPIO_PIN_9);
gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_10);
    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_10);
gpio_af_set(GPIOA, GPIO_AF_2, GPIO_PIN_10);
}
void PWM_timer_config(void)
{
    timer_oc_parameter_struct timer_ocintpara;
    timer_parameter_struct timer_initpara;
    rcu_periph_clock_enable(RCU_TIMER0);
    timer_deinit(TIMER0);
    rcu_periph_clock_enable(RCU_TIMER2);
    timer_deinit(TIMER2);
    /* TIMER0 configuration */
    timer_initpara.prescaler         = 3;
    timer_initpara.alignedmode       = TIMER_COUNTER_EDGE;
    timer_initpara.counterdirection= TIMER_COUNTER_UP;
    timer_initpara.period            = 999;
    timer_initpara.clockdivision   = TIMER_CKDIV_DIV1;
    timer_initpara.repetitioncounter = 0;
    timer_init(TIMER0,&timer_initpara);
timer_init(TIMER2,&timer_initpara);
/* CH1,CH2 and CH3 configuration in PWM mode1 */
    timer_ocintpara.ocpolarity   = TIMER_OC_POLARITY_HIGH;
    timer_ocintpara.outputstate= TIMER_CCX_ENABLE;
    timer_ocintpara.ocnpolarity= TIMER_OCN_POLARITY_HIGH;
    timer_ocintpara.outputnstate = TIMER_CCXN_ENABLE;
    timer_ocintpara.ocidlestate= TIMER_OC_IDLE_STATE_HIGH;
    timer_ocintpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
    timer_channel_output_config(TIMER2,TIMER_CH_3,&timer_ocintpara);
    timer_channel_output_config(TIMER0,TIMER_CH_1,&timer_ocintpara);
    timer_channel_output_config(TIMER0,TIMER_CH_2,&timer_ocintpara);
    /* CH1 configuration in PWM mode1,duty cycle 25% */
    timer_channel_output_pulse_value_config(TIMER2,TIMER_CH_3,500);
    timer_channel_output_mode_config(TIMER2,TIMER_CH_3,TIMER_OC_MODE_PWM0);
    timer_channel_output_pulse_value_config(TIMER0,TIMER_CH_1,500);
    timer_channel_output_mode_config(TIMER0,TIMER_CH_1,TIMER_OC_MODE_PWM0);
    timer_channel_output_pulse_value_config(TIMER0,TIMER_CH_2,500);
    timer_channel_output_mode_config(TIMER0,TIMER_CH_2,TIMER_OC_MODE_PWM0);
    timer_primary_output_config(TIMER0,ENABLE);
    /* auto-reload preload enable */
    timer_enable(TIMER0);
    timer_primary_output_config(TIMER2,ENABLE);
    /* auto-reload preload enable */
    timer_enable(TIMER2);
}
int main(void)
{
//PWM InitMotor
PWM_gpio_config();
PWM_timer_config();
while(1)
{
timer_channel_output_pulse_value_config(TIMER2,TIMER_CH_3,(uint16)rollPhase);
timer_channel_output_pulse_value_config(TIMER0,TIMER_CH_1,(uint16)rollPhase);
timer_channel_output_pulse_value_config(TIMER0,TIMER_CH_2,(uint16)rollPhase);
}
}
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以上例程经测试OK，希望能帮到你！！
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原文链接：https://blog.csdn.net/u014694105/article/details/105976954

tpgf 发表于 2024-12-2 15:40

#include "gd32e230.h"

void PWM_Init(void) {
    // 使能GPIOB和TIMER0的时钟
    rcu_periph_clock_enable(RCU_GPIOB);
    rcu_periph_clock_enable(RCU_TIMER0);

    // 配置GPIOB的第0引脚为复用功能，映射到定时器0的通道0
    gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_0);
    gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_0);
    gpio_af_set(GPIOB, GPIO_AF_2, GPIO_PIN_0);

    // 配置定时器0的基本参数
    timer_parameter_struct timer_initpara;
    timer_oc_parameter_struct timer_ocintpara;
    timer_deinit(TIMER0);
    rcu_periph_clock_enable(RCU_TIMER0);

    timer_initpara.prescaler = 71; // 预分频系数
    timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
    timer_initpara.counterdirection = TIMER_COUNTER_UP;
    timer_initpara.period = 999; // 自动重装载值
    timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
    timer_init(TIMER0, &timer_initpara);

    // 配置定时器0的通道0为PWM模式
    timer_ocintpara.ocpolarity = TIMER_OC_POLARITY_HIGH;
    timer_ocintpara.outputstate = TIMER_CCX_ENABLE;
    timer_channel_output_config(TIMER0, TIMER_CH_0, &timer_ocintpara);
    timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, 500); // 设置占空比为50%
    timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM0);

    // 启动定时器0
    timer_enable(TIMER0);
}

heimaojingzhang 发表于 2024-12-3 09:40

要配置GD32E230的PWM输出，首先需要初始化相关的GPIO引脚为复用功能，并将其映射到定时器的通道上

keaibukelian 发表于 2024-12-3 13:43

配置定时器的基本参数，包括时钟源、工作模式等，并选择PWM输出模式

paotangsan 发表于 2024-12-3 18:20

根据需要设置PWM信号的占空比和周期

renzheshengui 发表于 2024-12-3 20:03

需要根据具体的需求调整定时器的预分频系数、自动重装载值以及PWM信号的占空比等参数

wowu 发表于 2024-12-3 21:59

从代码层次上来讲 二楼的代码应该更好一点

等你下课 发表于 2025-1-31 19:16

需要初始化相关的GPIO引脚为复用功能
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