STM32C8T6發(fā)送控制信號給電機驅(qū)動，電機驅(qū)動控制步進電機。

電機驅(qū)動：控制一個步進電機轉(zhuǎn)動，使用一路PWM信號和一路方向信號，根據(jù)pwm信號的頻率控制步進電機的轉(zhuǎn)速，方向信號控制步進轉(zhuǎn)動的方向。

void SteppingMotor_Config(void)

{

GPIO_InitTypeDef GPIO_InitStructure;

TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

TIM_OCInitTypeDef TIM_OCInitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; //TIM2的1通道輸出pwm波形控制電機，對應PA0口

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOA,&GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2; //步進電機正反轉(zhuǎn)和使能控制口

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOA,&GPIO_InitStructure);

//定義PWM頻率

TIM_TimeBaseStructure.TIM_Prescaler =719; //預分頻值

TIM_TimeBaseStructure.TIM_Period =99; //重裝值，這里輸出的pwm頻率為1KHZ

TIM_TimeBaseStructure.TIM_ClockDivision =TIM_CKD_DIV1;

TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); //時基單元配置

//設定占空比

TIM_OCStructInit(& TIM_OCInitStructure);

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;

TIM_OCInitStructure.TIM_Pulse =50; //P的占空比

TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;

TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

TIM_OC1Init(TIM2, &TIM_OCInitStructure);

TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Enable);

TIM_ARRPreloadConfig(TIM2,ENABLE);

TIM_Cmd(TIM2, ENABLE);

TIM_CtrlPWMOutputs(TIM2, ENABLE);

}

void SteppingMotorControl(u8 dir) //正反轉(zhuǎn)控制

{

if(0==dir)

{

GPIO_ResetBits(GPIOA,GPIO_Pin_1); //反轉(zhuǎn)

}

else

{

GPIO_SetBits(GPIOA,GPIO_Pin_1); //正轉(zhuǎn)

}

}

void EnableSteppingMotor(void)

{

GPIO_ResetBits(GPIOA,GPIO_Pin_2);

}

void DisableSteppingMotor(void)

{

GPIO_SetBits(GPIOA,GPIO_Pin_2);

}