#include "stm32f10x.h"
#include "delay.h"
#include "lcd.h"
#include "usart.h"
#include "LightSensor.h"int main()
{u8 LightSensor = 0;delay_init();NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);LightSensor_InitConfig();uart_init(115200);LCD_Init();while(1){LightSensor = DigitalConvLight();printf("LightSensor = %d\n",LightSensor);LCD_ShowNum(10,10,LightSensor,4,16);delay_ms(50);}
}

#include "LightSensor.h"
#include "stm32f10x.h"
#include "delay.h"void LightSensor_InitConfig()
{ADC_InitTypeDef ADC_InitStructure;GPIO_InitTypeDef GPIO_InitStructure;RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC3|RCC_APB2Periph_GPIOF,ENABLE);GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOF,&GPIO_InitStructure);ADC_DeInit(ADC3); // ADC3复位RCC_ADCCLKConfig(RCC_PCLK2_Div6); // ADC正常工作的频率<=14MHzADC_InitStructure.ADC_ContinuousConvMode = DISABLE;ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;ADC_InitStructure.ADC_NbrOfChannel = 1;ADC_InitStructure.ADC_ScanConvMode = DISABLE;ADC_Init(ADC3,&ADC_InitStructure); // 配置ADC3的属性ADC_Cmd(ADC3,ENABLE); // 配置完ADC3的属性就使能ADC3ADC_ResetCalibration(ADC3);while(ADC_GetResetCalibrationStatus(ADC3) == SET); // 当函数返回为SET说明还在复位校准当中，当退出复位校准后函数返回RESETADC_StartCalibration(ADC3);while(ADC_GetCalibrationStatus(ADC3) == SET); // 当函数返回为SET说明还在启动校准当中，当校准完成后函数返回RESET
}u16 GetSingleADCValue()
{u16 temp = 0;ADC_RegularChannelConfig(ADC3,ADC_Channel_6,1,ADC_SampleTime_28Cycles5); // 配置ADC3_CH6规则通道的属性ADC_SoftwareStartConvCmd(ADC3,ENABLE); // ADC3的规则通道开始转换while(ADC_GetFlagStatus(ADC3,ADC_FLAG_EOC) == RESET); // 等待ADC3_CH6规则通道转换完成temp = ADC_GetConversionValue(ADC3);temp = temp>=4000?4000:temp;return temp;
}u8 DigitalConvLight()
{u8 i = 0;float temp = 0;while(i<=4){temp += GetSingleADCValue();i++;}temp = 100*(1 - temp/5/4000);return (u8)temp;
}

#ifndef _LIGHT_SENSOR_H
#define _LIGHT_SENSOR_H#include "sys.h"void LightSensor_InitConfig();
u16 GetSingleADCValue();
u8 DigitalConvLight();#endif