stm32利用uln2003驱动步进电机停止程序
时间: 2023-08-24 15:06:06 浏览: 43
以下是一个基本的STM32利用ULN2003驱动步进电机停止程序:
```c
#include "stm32f4xx.h"
#define STEPPER_PORT GPIOA
#define STEPPER_PIN1 GPIO_Pin_0
#define STEPPER_PIN2 GPIO_Pin_1
#define STEPPER_PIN3 GPIO_Pin_2
#define STEPPER_PIN4 GPIO_Pin_3
void delay(uint32_t count){
while(count--);
}
void stepper_stop(){
GPIO_ResetBits(STEPPER_PORT, STEPPER_PIN1 | STEPPER_PIN2 | STEPPER_PIN3 | STEPPER_PIN4);
}
void stepper_step(uint32_t steps){
uint8_t i;
for(i = 0; i < steps; i++){
GPIO_SetBits(STEPPER_PORT, STEPPER_PIN1);
delay(50000);
GPIO_SetBits(STEPPER_PORT, STEPPER_PIN2);
delay(50000);
GPIO_SetBits(STEPPER_PORT, STEPPER_PIN3);
delay(50000);
GPIO_SetBits(STEPPER_PORT, STEPPER_PIN4);
delay(50000);
GPIO_ResetBits(STEPPER_PORT, STEPPER_PIN1 | STEPPER_PIN2 | STEPPER_PIN3 | STEPPER_PIN4);
delay(50000);
}
stepper_stop();
}
int main(){
GPIO_InitTypeDef GPIO_InitStruct;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitStruct.GPIO_Pin = STEPPER_PIN1 | STEPPER_PIN2 | STEPPER_PIN3 | STEPPER_PIN4;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(STEPPER_PORT, &GPIO_InitStruct);
stepper_step(1000);
while(1);
return 0;
}
```
在这个例子中,我们使用STM32F4 Discovery板和ULN2003驱动器驱动步进电机。在main函数中,我们初始化GPIO并调用stepper_step函数来驱动步进电机转动1000步,然后进入一个无限循环。stepper_step函数使用四个GPIO引脚(STEPPER_PIN1, STEPPER_PIN2, STEPPER_PIN3和STEPPER_PIN4)来控制步进电机的转动。函数中使用了一个简单的delay函数来控制步进电机的转速。当步进电机完成指定的步数时,stepper_stop函数被调用来停止步进电机的转动,即将所有GPIO引脚重置为低电平。