/*********************************************************************
 *
 *                  UART Basic Example
 *
 *********************************************************************
 * FileName:        uart_basic.c
 * Dependencies:
 * Processor:       PIC32
 *
 * Complier:        MPLAB C32
 *                  MPLAB IDE
 * Company:         Microchip Technology Inc.
 *
 * Software License Agreement
 *
 * The software supplied herewith by Microchip Technology Incorporated
 * (the Company) for its PIC32 Microcontroller is intended
 * and supplied to you, the Companys customer, for use solely and
 * exclusively on Microchip PIC32 Microcontroller products.
 * The software is owned by the Company and/or its supplier, and is
 * protected under applicable copyright laws. All rights are reserved.
 * Any use in violation of the foregoing restrictions may subject the
 * user to criminal sanctions under applicable laws, as well as to
 * civil liability for the breach of the terms and conditions of this
 * license.
 *
 * THIS SOFTWARE IS PROVIDED IN AN AS IS CONDITION. NO WARRANTIES,
 * WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
 * TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT,
 * IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
 * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
 *
 *
 * $Id: uart_basic.c 9390 2008-06-16 23:43:04Z rajbhartin $
 * $Name: x.x $
 *
 **********************************************************************/
#include <plib.h>

// Configuration Bit settings
// SYSCLK = 80 MHz (8MHz Crystal/ FPLLIDIV * FPLLMUL / FPLLODIV)
// PBCLK = 40 MHz
// Primary Osc w/PLL (XT+,HS+,EC+PLL)
// WDT OFF
// Other options are don't care
//
#pragma config FPLLMUL = MUL_20, FPLLIDIV = DIV_2, FPLLODIV = DIV_1, FWDTEN = OFF
#pragma config POSCMOD = HS, FNOSC = PRIPLL, FPBDIV = DIV_1

#define SYS_FREQ 				(80000000L)

#define DESIRED_BAUDRATE    	(9600)      // The desired BaudRate



int main(void)
{
	int	pbClk;
   unsigned char data;

	// Configure the device for maximum performance but do not change the PBDIV
	// Given the options, this function will change the flash wait states, RAM
	// wait state and enable prefetch cache but will not change the PBDIV.
	// The PBDIV value is already set via the pragma FPBDIV option above..
	pbClk=SYSTEMConfig(SYS_FREQ, SYS_CFG_WAIT_STATES | SYS_CFG_PCACHE);


	// Open UART2 with Receive and Transmitter enable.
   OpenUART2(UART_EN, UART_RX_ENABLE | UART_TX_ENABLE, pbClk/16/DESIRED_BAUDRATE-1);	// calculate actual BAUD generate value.

	mPORTAClearBits(BIT_7); 		// Turn off RA7 on startup.
	mPORTASetPinsDigitalOut(BIT_7);	// Make RA7 as output.


   putsUART2("*** UART Simple Application Example ***\r\n");
   putsUART2("*** Type some characters and observe echo and RA7 LED toggle  ***\r\n");

   while(1)
   {
      while(!DataRdyUART2()); /* Wait for data in the UARTRx. */

      data = (char)ReadUART2(); /* Read data from Rx. */

      mPORTAToggleBits(BIT_7);

      while(BusyUART2()); /* Wait till the UART transmitter is free. */
      putcUART2(data); /* Write data into Tx. */

   };

   return 0;
}

