stm32f103c8t6光敏传感器控制直流电机代码
时间: 2023-08-23 14:04:33 浏览: 38
以下是一个简单的示例代码,可以在STM32F103C8T6上控制直流电机,根据光敏传感器的读数来调整电机的转速。
```c
#include "stm32f10x.h"
#define ADC1_DR_Address ((u32)0x4001244C)
void GPIO_Configuration(void);
void ADC_Configuration(void);
void TIM_Configuration(void);
volatile uint16_t adc_value = 0;
int main(void)
{
GPIO_Configuration();
ADC_Configuration();
TIM_Configuration();
while (1)
{
// 读取光敏传感器的ADC值
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);
adc_value = ADC_GetConversionValue(ADC1);
// 根据ADC值调整电机的转速
int duty_cycle = (adc_value * 100) / 4095; // 转换为占空比
TIM_SetCompare1(TIM3, duty_cycle); // TIM3_CH1控制电机
}
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// 使能GPIOA和GPIOB时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);
// GPIOA.0: 光敏传感器输入
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// GPIOB.0: 电机控制
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
// 使能ADC1时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
// ADC1配置
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
// 配置ADC1通道0
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);
// 使能ADC1 DMA
ADC_DMACmd(ADC1, ENABLE);
// 使能ADC1
ADC_Cmd(ADC1, ENABLE);
}
void TIM_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
// 使能TIM3时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
// TIM3配置
TIM_TimeBaseStructure.TIM_Prescaler = 719; // 时钟预分频
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = 999; // 定时器周期
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
// TIM3_CH1配置: PWM模式1, 输出使能
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM3, &TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);
// 启动TIM3
TIM_Cmd(TIM3, ENABLE);
}
```
注意:这只是一个简单的示例代码,实际使用中还需要根据具体的硬件和功能需求进行修改和完善。另外,直流电机的控制需要特殊的电路和驱动器,建议在使用前仔细阅读相关资料和手册。