给一个STM32的DRV8833驱动
时间: 2024-05-08 11:15:46 浏览: 248
以下是一个基于STM32的DRV8833直流电机驱动程序:
```
#include "stm32f4xx.h"
#define MOTOR1_EN_PIN GPIO_Pin_0
#define MOTOR1_EN_PORT GPIOA
#define MOTOR1_IN1_PIN GPIO_Pin_1
#define MOTOR1_IN1_PORT GPIOA
#define MOTOR1_IN2_PIN GPIO_Pin_2
#define MOTOR1_IN2_PORT GPIOA
#define MOTOR2_EN_PIN GPIO_Pin_3
#define MOTOR2_EN_PORT GPIOA
#define MOTOR2_IN1_PIN GPIO_Pin_4
#define MOTOR2_IN1_PORT GPIOA
#define MOTOR2_IN2_PIN GPIO_Pin_5
#define MOTOR2_IN2_PORT GPIOA
void DRV8833_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// Enable GPIOA clock
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
// Configure motor 1 pins
GPIO_InitStructure.GPIO_Pin = MOTOR1_EN_PIN | MOTOR1_IN1_PIN | MOTOR1_IN2_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Configure motor 2 pins
GPIO_InitStructure.GPIO_Pin = MOTOR2_EN_PIN | MOTOR2_IN1_PIN | MOTOR2_IN2_PIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Disable both motors
GPIO_ResetBits(MOTOR1_EN_PORT, MOTOR1_EN_PIN);
GPIO_ResetBits(MOTOR2_EN_PORT, MOTOR2_EN_PIN);
// Set both motors to forward direction
GPIO_SetBits(MOTOR1_IN1_PORT, MOTOR1_IN1_PIN);
GPIO_ResetBits(MOTOR1_IN2_PORT, MOTOR1_IN2_PIN);
GPIO_SetBits(MOTOR2_IN1_PORT, MOTOR2_IN1_PIN);
GPIO_ResetBits(MOTOR2_IN2_PORT, MOTOR2_IN2_PIN);
}
void DRV8833_SetMotorSpeed(uint8_t motor, uint8_t speed)
{
GPIO_TypeDef* en_port;
uint16_t en_pin;
if (motor == 1)
{
en_port = MOTOR1_EN_PORT;
en_pin = MOTOR1_EN_PIN;
}
else if (motor == 2)
{
en_port = MOTOR2_EN_PORT;
en_pin = MOTOR2_EN_PIN;
}
else
{
return; // Invalid motor number
}
if (speed == 0)
{
GPIO_ResetBits(en_port, en_pin); // Disable motor
}
else
{
GPIO_SetBits(en_port, en_pin); // Enable motor
TIM_SetCompare3(TIM3, (uint32_t) (speed * 10)); // Set PWM duty cycle
}
}
```
该程序使用了STM32的GPIO和定时器模块实现了DRV8833直流电机驱动。其中,`DRV8833_Init()`函数用于初始化GPIO和定时器,`DRV8833_SetMotorSpeed()`函数用于设置电机转速。在设置电机转速时,使用了STM32的PWM模块来控制电机速度。
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