stm32f103c6t6产生可调整相位的PWM波的程序代码
时间: 2023-03-19 14:25:32 浏览: 132
以下是一个用于产生可调整相位的PWM波的示例代码,适用于stm32f103c6t6:
```c
#include "stm32f10x.h"
void PWM_Init(void);
int main(void)
{
PWM_Init();
while (1)
{
// 在这里添加需要执行的代码
}
}
void PWM_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
// 使能TIM2和GPIOA的时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
// 配置PA0为TIM2的通道1输出
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 初始化TIM2
TIM_TimeBaseStructure.TIM_Period = 999; // 设置周期为1000
TIM_TimeBaseStructure.TIM_Prescaler = 71; // 设置预分频为72
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
// 初始化TIM2的通道1输出
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 500; // 设置占空比为50%
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM2, &TIM_OCInitStructure);
// 使能TIM2
TIM_Cmd(TIM2, ENABLE);
}
```
这段代码使用了stm32f103c6t6的TIM2模块产生PWM波,并通过TIM2的通道1输出到PA0引脚。您可以根据需要更改周期、预分频和占空比的值。
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