//?TI?File?$Revision:?/main/2?$
//?Checkin?$Date:?March?1?2007???16:06:07?$
//###########################################################################
//
//?FILE:	DSP2833x_Sci.c
//
//?title:	DSP2833x?SCI?Initialization?&?Support?Functions.
//
//###########################################################################
//?$TI?Release:?DSP2833x/DSP2823x?C/C++?Header?Files?V1.31?$
//?$Release?Date:?August?4?2009?$
//###########################################################################

#include?“DSP2833x_Device.h“?????//?DSP2833x?Headerfile?Include?File
#include?“DSP2833x_Examples.h“???//?DSP2833x?Examples?Include?File


//---------------------------------------------------------------------------
//?InitSci:?
//---------------------------------------------------------------------------
//?This?function?initializes?the?SCI（s）?to?a?known?state.
//
void?InitSci（void）
{
	//?Initialize?SCI-A:

	//tbd...
?	

	//?Initialize?SCI-B:

	//tbd...
??
??????//?Initialize?SCI-C:

??????//tbd...
}	

//---------------------------------------------------------------------------
//?Example:?InitSciGpio:?
//---------------------------------------------------------------------------
//?This?function?initializes?GPIO?pins?to?function?as?SCI?pins
//
//?Each?GPIO?pin?can?be?configured?as?a?GPIO?pin?or?up?to?3?different
//?peripheral?functional?pins.?By?default?all?pins?come?up?as?GPIO
//?inputs?after?reset.??
//?
//?Caution:?
//?Only?one?GPIO?pin?should?be?enabled?for?SCITXDA/B?operation.
//?Only?one?GPIO?pin?shoudl?be?enabled?for?SCIRXDA/B?operation.?
//?Comment?out?other?unwanted?lines.

void?InitSciGpio（）
{
???InitSciaGpio（）;
/*#if?DSP28_SCIB
???InitScibGpio（）;
#endif?//?if?DSP28_SCIB??
#if?DSP28_SCIC
???InitScicGpio（）;
#endif?//?if?DSP28_SCIC
*/
}

void?InitSciaGpio（）
{
???EALLOW;

/*?Enable?internal?pull-up?for?the?selected?pins?*/
//?Pull-ups?can?be?enabled?or?disabled?disabled?by?the?user.??
//?This?will?enable?the?pullups?for?the?specified?pins.

	GpioCtrlRegs.GPAPUD.bit.GPIO28?=?0;????//?Enable?pull-up?for?GPIO28?（SCIRXDA）
	GpioCtrlRegs.GPAPUD.bit.GPIO29?=?0;	???//?Enable?pull-up?for?GPIO29?（SCITXDA）

/*?Set?qualification?for?selected?pins?to?asynch?only?*/
//?Inputs?are?synchronized?to?SYSCLKOUT?by?default.??
//?This?will?select?asynch?（no?qualification）?for?the?selected?pins.

	GpioCtrlRegs.GPAQSEL2.bit.GPIO28?=?3;??//?Asynch?input?GPIO28?（SCIRXDA