/*
   Copyright (c) 2015, Digi International Inc.

   Permission to use, copy, modify, and/or distribute this software for any
   purpose with or without fee is hereby granted, provided that the above
   copyright notice and this permission notice appear in all copies.

   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/********************************************************************
	Simple3wire.c

	This program is used with BL2600 series controllers.

	Description
	===========
	This program demonstrates basic initialization for a
	simple RS232 3-wire loopback displayed in STDIO window.

   Here's the typical connections for a 3 wire interface that
   would be made between controllers.

       TX <---> RX
       RX <---> TX
		Gnd <---> Gnd

	Connections
	===========
	1. Connect TXC to RXF located on J17.
   2. Connect TXF to RXC located on J17.

	Instructions
	============
	1. Compile and run this program.
 	2. View STDIO window for sample program results.

********************************************************************/
//  Set a default of declaring all local variables "auto" (on stack)
#class auto

// serial buffer size
#define CINBUFSIZE  15
#define COUTBUFSIZE 15
#define FINBUFSIZE  15
#define FOUTBUFSIZE 15


// serial baud rate
#define BAUD232 115200

main()
{
	auto int nIn;
	auto char cOut;

  // Initialize controller
	brdInit();

   // Open serial port
	serCopen(BAUD232);
   serFopen(BAUD232);

   // Can use serial mode 0 - 2 for 3 wire RS232 operation
   // depending on what serial port you select and serMode
   // must be executed after the serXopen function(s).
   serMode(0);

   // Clear serial buffers
	serCwrFlush();
	serCrdFlush();
   serFwrFlush();
	serFrdFlush();

	while (1)
	{
		for (cOut='a'; cOut<='z'; ++cOut)
		{
			serCputc (cOut);								//	Send Byte
			while ((nIn=serFgetc()) == -1);			// Wait for echo
			printf ("Upper case %c is %c\n", cOut, toupper(nIn));
		}
	}
}


