帮我写一个使用STM32F103ZET6的定时器3输出两路PWM的HAL库函数代码
时间: 2023-08-28 11:09:42 浏览: 40
好的,下面是使用STM32F103ZET6的定时器3输出两路PWM的HAL库函数代码:
```c
#include "stm32f1xx_hal.h"
TIM_HandleTypeDef htim3;
void MX_TIM3_Init(void)
{
TIM_MasterConfigTypeDef sMasterConfig = {0};
TIM_OC_InitTypeDef sConfigOC = {0};
htim3.Instance = TIM3;
htim3.Init.Prescaler = 0;
htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
htim3.Init.Period = 999;
htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 500;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
if (HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
sConfigOC.Pulse = 250;
if (HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
{
Error_Handler();
}
HAL_TIM_MspPostInit(&htim3);
}
void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef* tim_pwmHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(tim_pwmHandle->Instance==TIM3)
{
/* TIM3 clock enable */
__HAL_RCC_TIM3_CLK_ENABLE();
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin : PB0 */
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pin : PB1 */
GPIO_InitStruct.Pin = GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
}
void HAL_TIM_PWM_MspDeInit(TIM_HandleTypeDef* tim_pwmHandle)
{
if(tim_pwmHandle->Instance==TIM3)
{
/* TIM3 clock disable */
__HAL_RCC_TIM3_CLK_DISABLE();
/*Configure GPIO pin : PB0 */
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0);
/*Configure GPIO pin : PB1 */
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_1);
}
}
```
这段代码使用了定时器3,在PB0和PB1上输出两路PWM。其中,TIM_CHANNEL_1输出500的占空比,TIM_CHANNEL_2输出250的占空比。你可以根据自己的需求修改这些参数。
希望能够帮到你!