cominfsci3_2.cpp

com port communiaction funtions renesas

/***********************************************************************/
/*                                                                     */
/*  FILE        :ComInfSCI3_2.cpp                                      */
/*  DATE        :Thu, Nov 18, 2004                                     */
/*  DESCRIPTION :Implementation of the Communication Interface Class   */
/*				 for SCI32											   */
/*  CPU TYPE    :H8/38076                                              */
/*                                                                     */
/***********************************************************************/

#include "common.h"
#include "ComInfSCI3_2.h"
#include "iodefine.h"
#include "extern_variable.h"
#include <machine.h>

CComInfSCI3_2::CComInfSCI3_2()
{

}

CComInfSCI3_2::~CComInfSCI3_2()
{

}

void CComInfSCI3_2::initChild (unsigned char bitRate, unsigned char byteSize, unsigned char parity, unsigned char stopBits, unsigned char clock, unsigned char isInvert)
{	SCI3_2.SCR3.BYTE = 0x00;      //Serial Control Register is set to 0.
	unsigned char smrValue = 0;
	if (byteSize != 8)
		smrValue |= 0x40;
	parity <<= 4;
	smrValue |= parity;
	if (stopBits)
		smrValue |= 0x08;
	smrValue |= clock;
	SCI3_2.SMR3.BYTE = smrValue;	//Serial Mode Register.
	SCI3_2.BRR3 = bitRate;          //Bit Rate Register.
	nop();
	SCI3_2.SPCR.BIT.SPC32 = TRUE;        //Serial Port Control Register.
	if (Neutral_Fail)
	//if (0)
	{
	//	SCI3_2.SPCR.BIT.SCINV3 = TRUE;
	//	SCI3_2.SPCR.BIT.SCINV2 = FALSE;
	}
	else
	{
	
	//	SCI3_2.SPCR.BIT.SCINV3 = FALSE;
	//	SCI3_2.SPCR.BIT.SCINV2 = FALSE;
	}
//	IO.PDR9.BIT.B0=~Neutral_Fail;		// no use of this pin bhaskar
	/*if (isInvert)
	{
		SCI3_2.SPCR.BIT.SCINV3 = TRUE;
		SCI3_2.SPCR.BIT.SCINV2 = TRUE;
	}
	else
	{
		SCI3_2.SPCR.BIT.SCINV3 = FALSE;
		SCI3_2.SPCR.BIT.SCINV2 = FALSE;
	}*/
	INTC.IPRD.BIT._SCI3_2 = TRUE;
	SCI3_2.SCR3.BIT.TE = TRUE;
	SCI3_2.SSR3.BIT.RDRF = FALSE;
	SCI3_2.SSR3.BIT.OER = FALSE;
	SCI3_2.SSR3.BIT.FER = FALSE;
	SCI3_2.SSR3.BIT.PER = FALSE;
	
}

void CComInfSCI3_2::receiveEnable()
{	OPTICAL_RIE = TRUE;
	OPTICAL_RE = TRUE;
}

void CComInfSCI3_2::receiveDisable()
{	OPTICAL_RIE = FALSE;
	OPTICAL_RE = FALSE;
}

void CComInfSCI3_2::init(unsigned char bitRate, unsigned char byteSize, unsigned char parity, unsigned char stopBits, unsigned char clock, unsigned char isInvert, unsigned char *txBufferPtr, unsigned char *rxBufferPtr)
{
	rxEnable = FALSE;
	txRequest = FALSE;
	dataReceived = FALSE;
	txDataCount = NULL;
	rxDataCount = NULL;
	txDataPointer = txBufferPtr;
	rxDataPointer = rxBufferPtr;
	initChild(bitRate, byteSize, parity, stopBits, clock, isInvert);
}

void CComInfSCI3_2::requestProc(unsigned char command)
{	switch (command)
	{	case RX_ENABLE:
			rxEnable = TRUE;
			receiveEnable();
			break;
		case RX_DISABLE:
			rxEnable = FALSE;
			receiveDisable();
			break;
	}
	dataReceived = FALSE;
	rxDataCount = NULL;
	rxDataPointer = txRxBuffer;
}

void CComInfSCI3_2::transmitData()
{	
//	if(Transmit_Flag)
//	{
//		SCI3_2.SPCR.BIT.SCINV3 = FALSE;
//		SCI3_2.SPCR.BIT.SCINV2 = FALSE;	
//		for (temp_int=0;temp_int<0xff;temp_int++) nop(); // delay
//	}
	
	if (OPTICAL_TDRE)
	{	OPTICAL_TDR = *txDataPointer;
		txDataPointer++;
		txDataCount--;
		if (txDataCount == NULL)
			txRequest = FALSE;
	}
	
	
}

void CComInfSCI3_2::receiveData()
{	if ((OPTICAL_RDRF || OPTICAL_FER) && (!OPTICAL_OER) && (!OPTICAL_PER))
	{	*rxDataPointer = OPTICAL_RDR;
		rxDataPointer++;
		rxDataCount++;
		dataReceived = TRUE;
		if ((rxDataPointer < txRxBuffer) || (rxDataPointer > (txRxBuffer + 128)) || (rxDataCount > 128))
		{	rxDataPointer = txRxBuffer;
			rxDataCount = NULL;
			dataReceived = FALSE;
		}
	}
	OPTICAL_RDRF = FALSE;
	OPTICAL_OER = FALSE;
	OPTICAL_FER = FALSE;
	OPTICAL_PER = FALSE;
}