/******************************************************************************
 * Copyright (C) 2014-2015 HangZhou SiZhu Co.,LTD.
 *
 *-----------------------------------------------------------------------------
 * File: 			    pressure.h
 * Description:		head file of pressure.c used to output and display pressure  
 * Author:			  Lishoujian (867693272@qq.com)
 * Date:			    Jan 8, 2015
 *****************************************************************************/

/* ----------------------- Platform includes --------------------------------*/
#ifndef __pressure_H
#define __pressure_H	
#include "sys.h"


//85-500A-4R: span@1.5mA:100mV == 500Psi == 34.48Bar  =>2.9mv == 1bar
//85-300A-4R

#define    minvol               26      //10bar = 26mv(decide by the type of pressure sensor)
#define    op                   50      	//magnification of sampling the voltage
#define		PRESSURE_ERROR_DATA				800


float get_pressure(void);
float Get_kb_pressure(float pre_vol);
#endif