stm32如何输出不同平率的pwm
答案:1 悬赏:40
解决时间 2021-12-15 16:13
- 提问者网友：沉默的哀伤
- 2021-12-15 02:36
stm32如何输出不同平率的pwm
最佳答案
- 二级知识专家网友：修女的自白
- 2021-12-15 02:50
程序如下，每次交替，都有从新设置，但只改变一下红色部分的值。
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);
GPIO_PinRemapConfig(GPIO_FullRemap_TIM1,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOE, &GPIO_InitStructure);
TIM_DeInit(TIM1);
TIM1->BDTR=0x0000;
TIM_TimeBaseStructure.TIM_Period = 320-1;
TIM_TimeBaseStructure.TIM_Prescaler = 1-1;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);
GPIO_PinRemapConfig(GPIO_FullRemap_TIM1,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOE, &GPIO_InitStructure);
TIM_DeInit(TIM1);
TIM1->BDTR=0x0000;
TIM_TimeBaseStructure.TIM_Period = 320-1;
TIM_TimeBaseStructure.TIM_Prescaler = 1-1;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
我要举报
如以上问答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！
大家都在看
推荐资讯