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42 lines
1.3 KiB
42 lines
1.3 KiB
3 years ago
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#include "motor.h"
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void PWM_Init(u16 arr,u16 psc)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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TIM_OCInitTypeDef TIM_OCInitStructure;
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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TIM_TimeBaseStructure.TIM_Period = arr;
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TIM_TimeBaseStructure.TIM_Prescaler =psc;
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TIM_TimeBaseStructure.TIM_ClockDivision = 0;
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
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TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
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TIM_OCInitStructure.TIM_Pulse = 0;
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TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
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TIM_OC1Init(TIM1, &TIM_OCInitStructure);
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TIM_OC4Init(TIM1, &TIM_OCInitStructure);
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TIM_CtrlPWMOutputs(TIM1,ENABLE);
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TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Enable);
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TIM_OC4PreloadConfig(TIM1, TIM_OCPreload_Enable);
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TIM_ARRPreloadConfig(TIM1, ENABLE);
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TIM_Cmd(TIM1, ENABLE);
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}
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