INA226驅(qū)動程序

INA226是一款分流/功率監(jiān)視器，具有IPCTM或SMBUS兼容接口。該器件監(jiān)視分流壓降和總線電源電壓。可編程校準(zhǔn)值、轉(zhuǎn)換時間和取平均值功能與內(nèi)部乘法器相結(jié)合，可實現(xiàn)電流值（單位為安培）和功率值（單位為瓦）的直接讀取。

INA226可在OV至36V的共模總線電壓范圍內(nèi)感測電流，與電源電壓無關(guān)。該器件由一個2.7V至5.5V的單電源供電，電源電流典型值為330uA。該器件的額定工作溫度范圍為-40°C至125°C，PC兼容接口上具有多達16個可編程地址。
C文件

#define _LED_C_

#include "led.h"
#include "delay.h"
#include "system.h"




#define IIC_PORT	GPIOA																				//IIC IO端口
#define IIC_RCC 	RCC_APB2Periph_GPIOA												//端口時鐘
#define IIC_SDA GPIO_Pin_5																		//SDA引腳
#define IIC_SDA_H	GPIO_SetBits(IIC_PORT,IIC_SDA)							//拉高SDA
#define IIC_SDA_L	GPIO_ResetBits(IIC_PORT,IIC_SDA)						//拉低SDA
#define IIC_SDA_READ()	GPIO_ReadInputDataBit(GPIOA,IIC_SDA)	//讀取SDA

#define IIC_SCL GPIO_Pin_4																		//SCL引腳
#define IIC_SCL_H	GPIO_SetBits(IIC_PORT,IIC_SCL)							//拉高SCL
#define IIC_SCL_L	GPIO_ResetBits(IIC_PORT,IIC_SCL)						//拉低SCL



char time=5;


void INA_IIC_Delay()
{unsigned char x;
	for(x=1;x>0;x--)
	{
		__NOP();__NOP();__NOP();__NOP();__NOP();
	}
}


void INAInit(void)
{
    GPIO_InitTypeDef  GPIO_InitStructure;

    RCC_AHBPeriphClockCmd(RCC_AHBENR_GPIOA, ENABLE);
    GPIO_StructInit(&GPIO_InitStructure);
    GPIO_InitStructure.GPIO_Pin  =  IIC_SDA | IIC_SCL;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
		IIC_SDA_H;
	  IIC_SCL_H;
	
}


void INA_IIC_SDA_OUT(void)	//SDA配置為輸出
{
	GPIO_InitTypeDef GPIO_INIT;
	GPIO_INIT.GPIO_Mode=GPIO_Mode_Out_PP;
	GPIO_INIT.GPIO_Pin=IIC_SDA ;
	GPIO_INIT.GPIO_Speed=GPIO_Speed_50MHz;
	GPIO_Init(IIC_PORT,&GPIO_INIT);
}
void INA_IIC_SDA_IN(void)	//SDA配置為輸入
{
	GPIO_InitTypeDef GPIO_INIT;
	GPIO_INIT.GPIO_Mode=GPIO_Mode_IPU;
	GPIO_INIT.GPIO_Pin=IIC_SDA ;
	GPIO_INIT.GPIO_Speed=GPIO_Speed_50MHz;
	GPIO_Init(IIC_PORT,&GPIO_INIT);
}

void INA_IIC_Start(void)	//開始信號
{
	IIC_SDA_H;
	IIC_SCL_H;
	INA_IIC_Delay();
	IIC_SDA_L;
	INA_IIC_Delay();
	IIC_SDA_L;
}
void INA_IIC_Stop(void )	//結(jié)束信號
{
	IIC_SDA_L;
	IIC_SCL_H;
	INA_IIC_Delay();
	IIC_SDA_H;
	INA_IIC_Delay();
	IIC_SCL_L;
	
	IIC_SCL_H;
	IIC_SDA_H;
}
bool INA_IIC_ACK_Read(void)	//讀取應(yīng)答信號
{
	bool ack;
	IIC_SDA_H;
	INA_IIC_SDA_IN();

	IIC_SCL_H;
	INA_IIC_Delay();
	if(IIC_SDA_READ() == SET) ack=false;
	else ack=true;
	IIC_SCL_L;
	INA_IIC_SDA_OUT();
	return ack;
}
void INA_IIC_ACK_Send(bool ack)	//發(fā)送應(yīng)答信號
{
	IIC_SCL_L;
	if(ack == true) 
		IIC_SDA_L;
	else IIC_SDA_H;
	IIC_SCL_H;
	INA_IIC_Delay();
	IIC_SCL_L;
}
void INA_IIC_Send_Byte(unsigned char byte)	//IIC發(fā)送一位數(shù)據(jù)
{
	unsigned char i;
	IIC_SCL_L;
	for(i=0;i>8);
	data_temp[1]=(unsigned char )(data & 0xFF);
	INA_IIC_Start();
	INA_IIC_Send_Byte(addr);	//發(fā)送INA219地址
	INA_IIC_Send_Byte(reg);							//發(fā)送寄存器地址
	INA_IIC_Send_Byte(data_temp[0]);						//發(fā)送高8位數(shù)據(jù)
	data++;
	INA_IIC_Send_Byte(data_temp[1])	;					//發(fā)送低8位數(shù)據(jù)
	INA_IIC_Stop();
}

 
void INA226_Init(void)
{	
	INAInit();
	DELAY_Ms(10);
	INA226_SendData(INA226_ADDR1,CFG_REG,0x484f);//設(shè)置轉(zhuǎn)換時間204us，求平均值次數(shù)128，采樣時間204*128，設(shè)置模式為分流模式和總線連續(xù)模式
	INA226_SendData(INA226_ADDR1,CAL_REG,0x0012);//設(shè)置分流電壓轉(zhuǎn)轉(zhuǎn)電流轉(zhuǎn)換參數(shù)
}
 


u16 INA226_ReadData(u8 addr)
{
	u16 temp=0;
	INA_IIC_Start();
 
	INA_IIC_Send_Byte(addr+1);
	
	
	temp = INA_IIC_Read_Byte();
	temp

#ifndef __LED_H
#define __LED_H

// Files includes
#include 

#include "mm32_device.h"
#include "hal_conf.h"

#define 	CFG_REG	 		0x00		//
#define 	SV_REG 			0x01		//分流電壓,分流電阻為0.1歐姆
#define 	BV_REG 			0x02		//總線電壓
#define 	PWR_REG 		0x03		//電源功率
#define 	CUR_REG 		0x04		//電流
#define 	CAL_REG 		0x05		//校準(zhǔn)，設(shè)定滿量程范圍以及電流功率測數(shù)
#define 	ONFF_REG 		0x06		//屏蔽 使能
#define 	AL_REG 			0x07		//警報功能的閾值
#define 	INA226_GET_ADDR 0XFF//唯一芯片識別號
#define   INA226_ADDR1	0x80  //芯片地址
#define   INA226_ADDR2	0x88  //芯片地址
 
#define     CAL             456     //0.00512/(Current_LSB*R_SHUNT) = 470  //電流偏大改小

typedef struct
{
	float voltageVal;			  //mV
	float Shunt_voltage;		//uV
	float Shunt_Current;		//mA
	float powerVal;
}INA226;
 
 
void INA226_Init(void);
void INA226_SetRegPointer(u8 addr,u8 reg);
void INA226_SendData(u8 addr,u8 reg,u16 data);
 
u16 INA226_ReadData(u8 addr);

u16 INA226_Get_ID(u8 addr);				    //獲取ID
u16 INA226_GetVoltage( u8 addr);		  //獲取總線電壓
u16 INA226_GetShunt_Current(u8 addr);	//獲取分流電壓
u16 INA226_GetShuntVoltage(u8 addr);	//分流電壓
u16 INA226_Get_Power(u8 addr);			  //獲取功率
 
u16 INA226_GET_CAL_REG(u8 addr);
void GetVoltage(float *Voltage);		
void Get_Shunt_voltage(float *Current);
void Get_Shunt_Current(float *Current);
//void Get_Power(float *Current);
void GetPower();//W
 
extern INA226 INA226_data;
#define Key4                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_8)    //RST
#define Key3                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_5)    //DOWN
#define Key2                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_6)    //UP
#define Key1                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_7)    //MODE


#define IN3                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_0)
#define IN4                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_4)
#define IN5                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_5)
#define IN6                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_8)
#define IN7                   GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_9)
#define KEY8                  GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_10)
#define KEY9                  GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_15)
#define KEY10                 GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_2)
#define KEY11                 GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_1)
#define KEY12                 GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_11)

#endif



審核編輯：湯梓紅