STM32F103ZET6定时器TIM1的PA8和PA9输出互补PWM标准库代码
时间: 2023-08-24 21:08:41 浏览: 197
以下是使用标准库代码在STM32F103ZET6配置TIM1的PA8PA9输出互补的代码示例:
首,需要包含相的头文件:
```c
#include "stm32f10x.h"
#include "stm32f10x.h"
#include "stm3210x_gpio.h"
"stm32f10x_rcc.h"
`
然后,进行初始化配置:
```c
void TIM1_PWM_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
// 使能TIM1和GPIOA的时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA, ENABLE);
// 配置GPIO引脚
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// TIM1配置为PWM模式1
TIM_TimeBaseStructure.TIM_Period = 999; // 设置周期为1000(0-999)
TIM_TimeBaseStructure.TIM_Prescaler = 0; // 不分频
TIM_TimeBaseStructure.TIM_ClockDivision = 0; // 不分频
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
// 配置TIM1通道1和通道2为PWM输出模式
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 500; // 设置占空比为50%
TIM_OC1Init(TIM1, &TIM_OCInitStructure);
TIM_OC2Init(TIM1, &TIM_OCInitStructure);
// 使能TIM1
TIM_Cmd(TIM1, ENABLE);
}
```
最后,在主函数中调用初始化函数:
```c
int main(void)
{
// 初始化系统时钟
SystemInit();
// 初始化PWM
TIM1_PWM_Init();
while (1)
{
// 主程序逻辑
}
}
```
这样配置后,TIM1的通道1(PA8)和通道2(PA9)会以互补的方式产生PWM信号,占空比为50%。你可以根据需要修改占空比和其他参数。
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