【STM32】 6步PWM输出

最新推荐文章于 2025-07-07 17:27:55 发布

LittleAshes

最新推荐文章于 2025-07-07 17:27:55 发布

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CC 4.0 BY-SA版权

分类专栏： STM32

本文链接：https://blog.youkuaiyun.com/weixin_41746317/article/details/89072233

本文介绍了在STM32中实现六步PWM输出遇到的问题及解决过程，详细探讨了TIM1的CCER寄存器配置，解释了主通道与互补通道的关系，并提出可能与中断函数TIM_ITConfig()相关，最后分享了解决问题的关键步骤。

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需要用到方波，今天看了下ST官方例程里的6步PWM,先验证下
Step1 | Step2 | Step3 | Step4 | Step5 | Step6
----------------------------------------------------------
|Channel1 | 1 | 0 | 0 | 0 | 0 | 1 |
----------------------------------------------------------
|Channel1N | 0 | 0 | 1 | 1 | 0 | 0 |
----------------------------------------------------------
|Channel2 | 0 | 0 | 0 | 1 | 1 | 0 |
----------------------------------------------------------
|Channel2N | 1 | 1 | 0 | 0 | 0 | 0 |
----------------------------------------------------------
|Channel3 | 0 | 1 | 1 | 0 | 0 | 0 |
----------------------------------------------------------
|Channel3N | 0 | 0 | 0 | 0 | 1 | 1 |

int main(void)
	{
		RCC_Configuration();
		NVIC_Configuration();
		GPIO_Configuration();
		SysTick_Configuration();
		
		/* Time Base configuration */
		TIM_TimeBaseStructure.TIM_Period = 4095;
		TIM_TimeBaseStructure.TIM_Prescaler = 0;
		TIM_TimeBaseStructure.TIM_ClockDivision = 0;
		TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
		TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
		
		TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
		/* Channel 1, 2,3 and 4 Configuration in PWM mode */
		TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;
		TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
		TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
		TIM_OCInitStructure.TIM_Pulse = 2047;
		TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCPolarity_High;
		TIM_OCInitStructure.TIM_O