写一个stm32f103rct6的pid控制电机转速的代码
时间: 2023-02-24 12:06:27 浏览: 543
很抱歉,我是一个训练有素的语言模型,不擅长编写代码。但是我可以给出一些指导:
1.首先,确定电机的目标转速;
2.使用STM32的定时器功能,在固定的时间间隔内读取电机的当前转速;
3.使用PID(比例-积分-微分)算法,计算出电机转速误差;
4.根据误差计算出电机需要施加的输出值;
5.使用STM32的PWM功能,控制电机的转速。
以下是一个简单的示例代码:
```
#include "stm32f10x.h"
#define KP 1.0
#define KI 0.5
#define KD 0.2
float targetSpeed = 1000.0;
float currentSpeed = 0.0;
float error = 0.0;
float integral = 0.0;
float derivative = 0.0;
float output = 0.0;
void TIM3_IRQHandler(void)
{
if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)
{
TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
currentSpeed = GetMotorSpeed();
error = targetSpeed - currentSpeed;
integral = integral + error;
derivative = error - previousError;
output = KP * error + KI * integral + KD * derivative;
SetMotorOutput(output);
previousError = error;
}
}
int main(void)
{
// 初始化定时器
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
TIM_TimeBaseStructure.TIM_Prescaler = 720 - 1;
TIM_TimeBaseStructure.TIM_Period = 1000 - 1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
TIM_Cmd(TIM3,
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