flux.c

M37546产品群智能水表的解决方案,请需要的朋友下载

/************************************************************************/
/* Renesas System Solutions (Beijing) Co., LTD.							*/
/* All rights reserved.													*/
/*																		*/
/* File Name		: Flux.c											*/
/* Description		: 													*/
/*																		*/
/* Current Version	: 1.0												*/
/* Designer			: Feng Jun											*/
/* Start Date		: 2006-11-6											*/
/* Complete Date	: 2006-11-22										*/
/*																		*/
/* Lastest Version	:													*/
/* Designer			:													*/
/* Start Date		: 													*/
/* Complete Date	: 													*/
/************************************************************************/
#include "Flux.h"
#include "main.h"



/*************************************************************************
Name: 			ProcessWholeFlux
Parameters: 	None
Returns: 		None
Description: 	Process a whole flux 
*************************************************************************/
void ProcessWholeFlux(void)
{
	char readtemp[4];
	char fluxtemp;
	union byte_2 intdataaddr;
	#define intdata		intdataaddr.word
	#define intlow		intdataaddr.byte.low
	#define inthigh	intdataaddr.byte.high
	
	union byte_2 warndataaddr;
	#define warndata	warndataaddr.word
	#define warnlow		warndataaddr.byte.low
	#define warnhigh	warndataaddr.byte.high
	
	g_statusA = 4;								/* Go to DetectFlux */

	EEPROMReadNBytes(readtemp, 2, 0x14);		/* Read surplus */
	inthigh = readtemp[0];
	intlow = readtemp[1];

	EEPROMReadNBytes(&fluxtemp, 1, 0x01);		/* Read status */
	fluxtemp &= 0xfc;							/* Clear flag of flow */
	EEPROMWriteNBytes(0x01, 1, &fluxtemp);
	
	if (intdata == 0)
	{											/* Negative */
		EEPROMReadNBytes(readtemp, 2, 0x1a);
		inthigh = readtemp[0];
		intlow  = readtemp[1];
		
		intdata++;
		readtemp[0] = inthigh;
		readtemp[1] = intlow;
		EEPROMWriteNBytes(0x1a, 2, readtemp);	/* Write overdraft to EEPROM */

		if (TASTP==1 && B_openvalve==0 && B_closevalve==0)
		{	
			g_statusA = 5;				/* Power down */
		}
	}
	else
	{
		intdata--;
		readtemp[0] = inthigh;
		readtemp[1] = intlow;
		EEPROMWriteNBytes(0x14, 2, readtemp);
		
/* Compare with warning data (display) */
		EEPROMReadNBytes(readtemp, 4, 0x07);	/* Read the value to warning */
		warnhigh = readtemp[2];					/* Threshold of colsing valve to warn */
		warnlow  = readtemp[3];
		if (intdata == warndata)
		{
			B_closevalve = 1;					/* To close the valve */
			B_dispvalve = 1;
			B_timerA3s = 1;
			TimerAStart();						/* 3s timer start */
			g_statusA = 3;
		}

		warnhigh = readtemp[0];					/* Threshold of display warning */
		warnlow  = readtemp[1];
		if (intdata <= warndata)
		{
			B_timerA3s = 1;
			B_warning = 1;						/* To display '关阀' */
			TimerAStart();						/* 3s timer start */
			g_statusA = 3;
		}
		else
		{
			if (TASTP==1 && B_openvalve==0 && B_closevalve==0)
			{	
				g_statusA = 5;				/* Power down */
			}
		}
		
		if (intdata == 0)
		{
			B_warning = 1;						/* To display '交费' */
			B_dispvalve = 1;					/* To display '关阀' */
			B_closevalve = 1;					/* To close the valve */
			g_statusA = 3;
		}
	}
}

/*************************************************************************
Name: 			ProcessFlux
Parameters: 	None
Returns: 		None
Description: 	Process flux 
*************************************************************************/
void ProcessFlux(void)
{
	char fluxtemp;
	EEPROMReadNBytes(&fluxstatus, 1, 0x01);		/* Read status */
	fluxstatus = fluxstatus & 0x03;
	if (iofluxstatus != fluxstatus)
	{											/* Not same */
		fluxstatus |= iofluxstatus;
		if (fluxstatus == 3 )
		{										/* A whole flux */
			ProcessWholeFlux();
		}
		else 
		{
			EEPROMReadNBytes(&fluxtemp, 1, 0x01);		/* Read status */
			fluxstatus |= fluxtemp;
			EEPROMWriteNBytes(0x01, 1, &fluxstatus);

			if (TASTP == 0 || B_openvalve==1 || B_closevalve==1)
			{									/* 3s timer started */
				g_statusA = 4;
			}
			else
			{
				g_statusA = 5;					/* Power down */
			}
		}
	}
	else
	{
		if (TASTP==0 || B_openvalve==1 || B_closevalve==1)	
		{							/* 3s timer started */
			g_statusA = 4;
		}
		else
		{							/* Power down */
			g_statusA = 5;
		}
	}
	
}