用stm32f103c8t6编写一段程序实现测量电机转速
时间: 2023-07-29 21:05:59 浏览: 95
电机转速转矩测量系统分两部分:1.基于STM32F103单片机的信号采集模块。2、用Qt编写的界面显示软件.zip
好的,以下是基本的程序流程:
1. 初始化GPIO口,将用于接收电机的脉冲信号的GPIO口配置为输入模式。
2. 初始化定时器,用于产生计数器计数并产生中断。
3. 在定时器中断服务函数中,读取计数器计数值,计算出电机转速,并将计数器清零。
4. 不断循环输出电机转速。
下面是示例代码,供参考:
```c
#include "stm32f10x.h"
#define MOTOR_PULSE_GPIO_PORT GPIOA
#define MOTOR_PULSE_GPIO_PIN GPIO_Pin_0
volatile uint16_t motor_pulse_count = 0;
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = MOTOR_PULSE_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(MOTOR_PULSE_GPIO_PORT, &GPIO_InitStructure);
}
void TIM2_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
TIM_TimeBaseStructure.TIM_Prescaler = SystemCoreClock / 1000000 - 1; // 定时器时钟为1MHz
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_Cmd(TIM2, ENABLE);
}
void TIM2_IRQHandler(void)
{
if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
{
motor_pulse_count = TIM_GetCounter(TIM2);
TIM_SetCounter(TIM2, 0);
TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
}
}
int main(void)
{
uint16_t motor_speed = 0;
GPIO_Configuration();
TIM2_Configuration();
while (1)
{
motor_speed = (motor_pulse_count * 60) / 7.5; // 计算电机转速
motor_pulse_count = 0;
// 将电机转速输出到相应的设备或者终端上
}
}
```
需要注意的是,以上代码仅供参考,实际情况可能需要根据具体的电机和外设进行修改。同时,还需要注意定时器时钟的设置,以确保计数器计数精度和计算电机转速的准确度。
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