console.c

通过cc2420+pic实现无线通信

/*********************************************************************
 *
 *                  Console Routines
 *
 *********************************************************************
 * FileName:        Console.c
 * Dependencies:
 * Processor:       PIC18
 * Complier:        MCC18 v1.00.50 or higher
 *                  HITECH PICC-18 V8.10PL1 or higher
 * Company:         Microchip Technology, Inc.
 *
 * Software License Agreement
 *
 * The software supplied herewith by Microchip Technology Incorporated
 * (the 揅ompany? for its PICmicro?Microcontroller is intended and
 * supplied to you, the Company抯 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 揂S 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
 *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Nilesh Rajbharti     10/15/04    Original
 * Nilesh Rajbharti     11/1/04 Pre-release version
 ********************************************************************/
// Uncomment ENABLE_DEBUG line to enable debug mode for this file.
// Or you may also globally enable debug by defining this macro
// in zigbee.def file or from compiler command-line.
#ifndef ENABLE_DEBUG
//#define ENABLE_DEBUG
#endif

#include "Console.h"
#include "zigbee.h"
#include "Debug.h"

#define USART_USE_BRGH_HIGH
#if defined(USART_USE_BRGH_LOW)
    #define SPBRG_VAL   ( ((CLOCK_FREQ/BAUD_RATE)/64) - 1)
#else
    #define SPBRG_VAL   ( ((CLOCK_FREQ/BAUD_RATE)/16) - 1)
#endif

#if SPBRG_VAL > 255
    #error "Calculated SPBRG value is out of range for currnet CLOCK_FREQ."
#endif

void ConsoleInit(void)
{
#if defined(USART_USE_BRGH_HIGH)
    TXSTA = 0x24;
#else
    TXSTA = 0x20;
#endif

    RCSTA = 0x90; // 0b10010000;
    SPBRG = SPBRG_VAL;
	ConsoleBuf_init();
}

void ConsolePutROMString(ROM char* str)
{
    BYTE c;

    while( c = *str++ )
        ConsolePut(c);
}


BYTE ConsoleGetString(char *buffer, BYTE bufferLen)
{
    BYTE v;
    BYTE count;

    count = 0;
    do
    {
        if ( bufferLen-- == 0 )
            break;

        while( !ConsoleIsGetReady() );

        v = RCREG;

        if ( v == '\r' || v == '\n' )
            break;

        count++;
        *buffer++ = v;
        *buffer = '\0';
    } while(1);
    return count;
}

void ConsolePut(BYTE c)
{
    while( !ConsoleIsPutReady() );
    TXREG = c;
}



void ConsolePutString(BYTE *s)
{
    BYTE c;

    while( (c = *s++) )
        ConsolePut(c);
}


BYTE ConsoleGet(void)
{
	// Clear overrun error if it has occured
	// New bytes cannot be received if the error occurs and isn't cleared
	if(OERR)
	{
		CREN = 0;	// Disable UART receiver
		CREN = 1;	// Enable UART receiver
	}
	
	return RCREG;
}

// Buffer Output
unsigned char len,first,last;
BYTE data[0xF1];

void ConsoleBuf_init(void)
{
	len = first = last = 0;
}

BYTE ConsoleBuf_Put(BYTE c)
{
	if(len<0xF0)
	{
		data[first] = c;
		first ++ ;
		if ( first > 0xF0 ) first = 0;
		len ++;
	}
	return c;
}

void ConsoleBuf_Flush(void)//send buffer data from rs-232
{
	while(len>0)
	{
		//ConsolePut(data[last]);
		while( !ConsoleIsPutReady() );
    		TXREG = data[last];
		last++;
		if ( last > 0xF0 ) last = 0;
		len --;
	}
}