/*********************************************************************
 *
 *                Microchip USB Bootloader Version 1.2
 *
 *********************************************************************
 * FileName:        main.c
 * Dependencies:    See INCLUDES section below
 * Processor:       PIC18
 * Compiler:        C18 3.11+
 * Company:         Microchip Technology, Inc.
 *
 * Software License Agreement
 *
 * The software supplied herewith by Microchip Technology Incorporated
 * (the “Company”) for its PICmicro® Microcontroller is intended and
 * supplied to you, the Company’s customer, for use solely and
 * exclusively on Microchip PICmicro 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.
 *
 * Author               Date        Comment
 *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Rawin Rojvanit       11/19/04    Original.
 * Rawin Rojvanit       05/14/07    Minor updates.
 ********************************************************************/

/*********************************************************************
IMPORTANT NOTE: This booloader example code is not intended to work
with the PIC18F87J50 Family of microcontrollers.
*********************************************************************/


/** I N C L U D E S **********************************************************/
#include <p18cxxx.h>
#include "typedefs.h"                        // Required
#include "usb.h"                         // Required
#include "io_cfg.h"                                 // Required

#include "usb_compile_time_validation.h" // Optional

/** C O N F I G U R A T I O N ************************************************/

#if   defined(__18F4550)||defined(__18F4455)|| \
      defined(__18F2550)||defined(__18F2455)|| \
      defined(__18F4553)||defined(__18F4458)|| \
      defined(__18F2553)||defined(__18F2458)

// Note: Some of the below configuration bits are commented out
// to prevent build errors with some of the above listed devices.
// For example, on the PIC18F4458 CP3, WRT3, and EBTR3 don't exist.

#pragma config PLLDIV   = 5       // (20 MHz input)
#pragma config CPUDIV   = OSC1_PLL2
#pragma config USBDIV   = 2       // Clock source from 96MHz PLL/2
#pragma config FOSC     = HSPLL_HS
#pragma config FCMEN    = OFF
#pragma config IESO     = OFF
#pragma config PWRT     = OFF
#pragma config BOR      = ON
#pragma config BORV     = 3
#pragma config VREGEN   = ON
#pragma config WDT      = OFF
#pragma config WDTPS    = 32768
#pragma config MCLRE    = ON
#pragma config LPT1OSC  = OFF
#pragma config PBADEN   = OFF
#pragma config CCP2MX   = ON
#pragma config STVREN   = ON
#pragma config LVP      = OFF
//#pragma config ICPRT    = OFF       // Dedicated In-Circuit Debug/Programming
#pragma config XINST    = OFF       // Extended Instruction Set
#pragma config CP0      = OFF
#pragma config CP1      = OFF
#pragma config CP2      = OFF
//#pragma config CP3      = OFF
#pragma config CPB      = OFF
#pragma config CPD      = OFF
#pragma config WRT0     = OFF
#pragma config WRT1     = OFF
#pragma config WRT2     = OFF
//#pragma config WRT3     = OFF
#pragma config WRTB     = ON       // Boot Block Write Protection
#pragma config WRTC     = OFF
#pragma config WRTD     = OFF
#pragma config EBTR0    = OFF
#pragma config EBTR1    = OFF
#pragma config EBTR2    = OFF
//#pragma config EBTR3    = OFF
#pragma config EBTRB    = OFF

#endif

/** V A R I A B L E S ********************************************************/
#pragma udata

/** P R I V A T E  P R O T O T Y P E S ***************************************/

/** V E C T O R  R E M A P P I N G *******************************************/

#pragma code _HIGH_INTERRUPT_VECTOR = 0x000008
void _high_ISR (void)
{
    _asm goto RM_HIGH_INTERRUPT_VECTOR _endasm
}

#pragma code _LOW_INTERRUPT_VECTOR = 0x000018
void _low_ISR (void)
{
    _asm goto RM_LOW_INTERRUPT_VECTOR _endasm
}

#pragma code

/** D E C L A R A T I O N S **************************************************/
#pragma code
/******************************************************************************
 * Function:        void main(void)
 *
 * PreCondition:    None
 *
 * Input:           None
 *
 * Output:          None
 *
 * Side Effects:    None
 *
 * Overview:        Main program entry point.
 *
 * Note:            None
 *****************************************************************************/
void main(void)
{
    byte temp;
    temp = ADCON1;
    ADCON1 |= 0x0F;
    
    //TRISBbits.TRISB4 = 1;     // Reset value is already '1'
    
    //Check Bootload Mode Entry Condition
    if(PORTBbits.RB4 == 1)      // If not pressed, User Mode
    {
        ADCON1 = temp;          // Restore reset value
        _asm goto RM_RESET_VECTOR _endasm
    }//end if
    
    //Bootload Mode
    mInitAllLEDs();
    mInitializeUSBDriver();     // See usbdrv.h
    USBCheckBusStatus();        // Modified to always enable USB module
    while(1)
    {
        USBDriverService();     // See usbdrv.c
        BootService();          // See boot.c
    }//end while
}//end main

#pragma code user = RM_RESET_VECTOR

/** EOF main.c ***************************************************************/