dsp281x_sci.c

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// TI File $Revision: /main/2 $
// Checkin $Date: April 29, 2005   11:08:40 $
//###########################################################################
//
// FILE:	DSP281x_Sci.c
//
// TITLE:	DSP281x SCI Initialization & Support Functions.
//
//###########################################################################
// $TI Release: DSP281x Header Files V1.11 $
// $Release Date: September 26, 2007 $
//###########################################################################

#include "DSP281x_Device.h"     // DSP281x Headerfile Include File
#include "DSP281x_Examples.h"   // DSP281x Examples Include File

//---------------------------------------------------------------------------
// InitSPI: 
//---------------------------------------------------------------------------
// This function initializes the SPI(s) to a known state.
//
void InitSci(void)
{
	// Initialize SCI-A:
	
	EALLOW;
	GpioMuxRegs.GPFMUX.all = 0x0030;
	EDIS;
	/* loopback   8 bit data */
	SciaRegs.SCICCR.all = 0x07;	// 1 bit stop, disable parity, idle mode, 8 bits data 
	
	SciaRegs.SCICTL1.all = 0x03; // enable TX 
	SciaRegs.SCICTL2.all = 0x03; //
	
	SciaRegs.SCIHBAUD = 0x00;
	SciaRegs.SCILBAUD = 0x60;  //9600
	
	SciaRegs.SCICTL1.all = 0x23;
	

	//tbd...
 	

	// Initialize SCI-B:

	//tbd...
}

/********************************************************************************
	name:	int SciaTx_Ready(void)
	input:	none
	output:	i	1:	ready
			0:	busy
*********************************************************************************/

int SciaTx_Ready(void)
{
	unsigned int i;
	if(SciaRegs.SCICTL2.bit.TXRDY == 1)
	{
		i = 1;
	}
	else
	{
		i = 0;
	}
	return(i);
}

/********************************************************************************
	name:	int SciaRx_Ready(void)
	input:	none
	output:	i	1:	new data
			0:	none
*********************************************************************************/

int SciaRx_Ready(void)
{
	unsigned int i;
	if(SciaRegs.SCIRXST.bit.RXRDY == 1)
	{
		i = 1;
	}
	else
	{
		i = 0;
	}
	return(i);
}


	
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