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標(biāo)題: 自己寫(xiě)的傳感器代碼 [打印本頁(yè)]

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作者: 啦啦啦啦啦2112    時(shí)間: 2018-6-8 16:10
標(biāo)題: 自己寫(xiě)的傳感器代碼

void Single_Write_BH1750(uint8_t REG_Data)

{

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_BUSY)!=RESET);//檢測(cè)是否總線忙

I2C_TransferHandling(I2C1,SlaveAddress,1,I2C_SoftEnd_Mode,I2C_Generate_Start_Write);

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_TXIS)==RESET);//檢測(cè)發(fā)送

I2C_SendData(I2C1,REG_Data);

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_TC)==RESET);

I2C_GenerateSTOP(I2C1,ENABLE);

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_STOPF)==RESET);//是否停止

}

uint16_t Read_BH1750()

{

uint16_t Recev=0x00;//光強(qiáng)為16位。先發(fā)送高8后低8

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_BUSY)!=RESET);//IFBUSY

I2C_TransferHandling(I2C1,SlaveAddress+1,2,I2C_AutoEnd_Mode,I2C_Generate_Start_Read);

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_RXNE)==RESET);

Recev|=I2C_ReceiveData(I2C1);Recev<<=8;

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_RXNE)==RESET);

Recev|=I2C_ReceiveData(I2C1);

while(I2C_GetFlagStatus(I2C1,I2C_FLAG_STOPF)==RESET);

return Recev;

}

void BH1750_Get_Guang(float*Zhaodu)

#include"stm32f10x_lib.h"

#define uchar unsigned char

#define uint unsigned int

#define DataPort P0//LCD1602數(shù)據(jù)端口

#define SlaveAddress 0x46#define BH1750_SCL GPIO_Pin_14

#define BH1750_SDA GPIO_Pin_15

#define GPIO_I2C GPIOB

#defineBH1750_SCL_0()GPIOF->BRR=BH1750_SCL

#define BH1750_SCL_1()GPIOF->BSRR=BH1750_SCL

#define BH1750_SDA_0()GPIOF->BRR=BH1750_SDA

#define BH1750_SDA_1()GPIOF->BSRR=BH1750_SDA

#define BH1750_SDA_STATE()(GPIOF->IDR&BH1750_SDA)

return(GPIOB->IDR typedefunsigned char BYTE;

typedef unsigned short WORD;BYTE BUF[8];//接收數(shù)據(jù)緩存區(qū)

uchar ge,shi,bai,qian,wan;//顯示變量

int dis_data;//變量

void Init_BH1750(void);

void conversion(uint temp_data);void Single_Write_BH1750(ucharREG_Address); uchar Single_Read_BH1750(uchar REG_Address);

void Multiple_Read_BH1750(void);//連續(xù)的讀取內(nèi)部寄存器數(shù)據(jù)

u8BH1750_Start(void);

void BH1750_Stop(void);

u8 BH1750_SendByte(u8 Data);

u8 BH1750_ReceiveByte(void);

void BH1750_SendACK(void);

void BH1750_SendNACK(void);

void BH1750_Nop

(void voidBH1750_Delay(unsigned int u8BH1750_ACK u8BH1750_READYu8BH1750_NACK

u8BH1750_BUS_BUSY

u8BH1750_BUS_ERROR u8BH1750_RETRY_COUNT//重試次數(shù)

void BH1750_Nop(void)u8i=50;

while(i)

voidBH1750_Delay(unsigned

int unsignedintu8BH1750_Start(void)BH1750_SDA_1();BH1750_Nop();

BH1750_SCL_1();BH1750_Nop();

if(!BH1750_SDA_STATE())//

//DebugPrint("TWI_START:BUSY\n");

return BH1750_BUS_BUSY;

BH1750_SDA_0();

BH1750_Nop();

BH1750_SCL_0();BH1750_Nop();

if(BH1750_SDA_STATE())//

//DebugPrint("TWI_START:BUSERROR\n");

return BH1750_BUS_ERROR;

returnBH1750_READY;

voidBH1750_Stop(void)

BH1750_SDA_0();BH1750_Nop();

BH1750_SCL_1();BH1750_Nop();

BH1750_SDA_1();BH1750_Nop();//

//DebugPrint("TWI_STOP\n");

voidBH1750_SendACK(void)BH1750_SDA_0();

BH1750_Nop();

BH1750_SCL_1();

BH1750_Nop();

BH1750_SCL_0();

BH1750_Nop();

BH1750_SDA_1();

//DebugPrint("TWI_SendACK\n");

voidBH1750_SendNACK(void)BH1750_SDA_1();

BH1750_Nop();

BH1750_SCL_1();

BH1750_Nop();

BH1750_SCL_0();

BH1750_Nop();//

//DebugPrint("TWI_SendNACK\n");

//---------數(shù)據(jù)建立----------if(Data&0x80)Data<<=1;BH1750_Nop();//---數(shù)據(jù)建立保持一定延時(shí)----//

BH1750_SCL_1();

BH1750_Nop();

BH1750_SCL_0();

BH1750_Nop();//延時(shí),防止SCL還沒(méi)變成低時(shí)改變SDA,從而產(chǎn)生START/STOP信號(hào)//接收從機(jī)的應(yīng)答B(yǎng)H1750_SDA_1();

BH1750_Nop();

BH1750_SCL_1();

BH1750_Nop();

if(BH1750_SDA_STATE())BH1750_SCL_0();BH1750_SDA_1();//

//DebugPrint("TWI_NACK!n");return BH1750_NACK;

BH1750_SCL_0();

BH1750_SDA_1();//

//DebugPrint("TWI_ACK!n");

return BH1750_ACK;

u8BH1750_ReceiveByte(void)u8i,Dat;

BH1750_SDA_1();

BH1750_SCL_0();

Dat=0;BH1750_SCL_1();//產(chǎn)生時(shí)鐘上升沿[正脈沖],讓從機(jī)準(zhǔn)備好數(shù)據(jù)BH1750_Nop();

Dat<<=1;if(BH1750_SDA_STATE())//讀引腳狀態(tài)BH1750_SCL_0();//準(zhǔn)備好再次接收數(shù)據(jù)BH1750_Nop();//等待數(shù)據(jù)準(zhǔn)備好//

//DebugPrint("TWI_Dat:%xn",Dat);

return Dat;

//voidconversion(uint temp_data)temp_data=temp_data%10000;

//取余運(yùn)算

temp_data=temp_data%1000;//取余運(yùn)算

temp_data=temp_data%100;//取余運(yùn)算

temp_data=temp_data%10;//取余運(yùn)算

voidSingle_Write_BH1750(uchar

REG_Address)BH1750_Start();//起始信號(hào)

BH1750_SendByte(SlaveAddress);//發(fā)送設(shè)備地址+寫(xiě)信號(hào)

BH1750_SendByte(REG_Address);//內(nèi)部寄存器地址，

BH1750_SendByte(REG_data);//內(nèi)部寄存器數(shù)據(jù)，

BH1750_Stop();//發(fā)送停止信號(hào)

ucharSingle_Read_BH1750(uchar REG_Address)

ucharREG_data;BH1750_Start();//起始信號(hào)

BH1750_SendByte(SlaveAddress);//發(fā)送設(shè)備地址+寫(xiě)信號(hào)

BH1750_SendByte(REG_Address);//發(fā)送存儲(chǔ)單元地址，從0開(kāi)始

BH1750_Start();//起始信號(hào)

BH1750_SendByte(SlaveAddress+1);//發(fā)送設(shè)備地址+讀信號(hào)

REG_data=BH1750_RecvByte();//讀出寄存器數(shù)

BH1750_SendACK(1);BH1750_Stop();//停止信號(hào)

return REG_data;//連續(xù)讀出BH1750內(nèi)部數(shù)據(jù)

voidMultiple_Read_BH1750(void)BH1750_Start();

//起始信號(hào)

BH1750_SendByte(SlaveAddress+1);//發(fā)送設(shè)備地址+讀信號(hào)

BH1750_ReceiveByte();//BUF[0]存儲(chǔ)0x32地址中的數(shù)據(jù)

BH1750_SendNACK();//最后一個(gè)數(shù)據(jù)需要回NOACK

BH1750_SendACK();//回應(yīng)

ACK BH1750_Stop();//停止信號(hào)//

Delay5ms();BH1750_Delay(500)//初始化BH1750，

void Init_BH1750()

voidBH1750_Get_Guang(float*Zhaodu)//延時(shí)100ms

Init_BH1750();//初始化BH1750

Single_Write_BH1750(0x01);

resolutionmode BH1750_Delay(200)//延時(shí)180ms

Multiple_Read_BH1750();//連續(xù)讀出數(shù)據(jù)，存儲(chǔ)在BUF dis_data=BUF[0];

dis_data=(dis_data<<8)+BUF[1];

//合成數(shù)據(jù)，即光照數(shù)據(jù)

*Zhaodu=(float)dis_data/1.2;

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