testzm.cpp

DOS下采用中断接收数据的串口通讯的例子,很难找到的好东西!

// ********************* START OF TESTZM.CPP *********************
//
// This is the test program for the Zmodem file transfer class.  
// It is a simple terminal emulator that has a menu accessed via 
// the Escape key.  The Send function just sends a couple of 
// predefined files.  The Receive function will accept whatever 
// the remote end sends.

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "rs232.h"
#include "pc8250.h"
#include "zmodem.h"
#include "ascii.h"

int main()
{
    int c;
    char *files[] = { "TESTZM.EXE", "ZMODEM.H", 0 };
    PC8250 port( COM1, 38400L, 'N', 8, 1 );
    Zmodem *zmodem;

    port.XonXoffHandshaking( 1 );
    zmodem = new Zmodem( &port );
    setbuf( stdout, 0 );
    for ( ; ; ) {
        if ( kbhit() ) {
            c = getch();
            if ( c == 27 ) {
                printf( "\n(Escape Receive Send) Command: " );
                c = getch();
                printf( "\n" );
                switch( toupper( c ) ) {
                    case 'R' :
                        printf( "Starting to receive...\n" );
                        zmodem->Receive( 0 );
                        printf( "\nReceive complete\n" );
                        break;
                    case 'S' :
                        printf( "Starting to send...\n" );
                        zmodem->Send( files );
                        printf( "\nSend complete\n" );
                        break;
                }
                if ( c == 27 || toupper( c ) == 'E' )
                    break;
            } else
                port.Write( c );
        }
        c = port.Read();
        if ( c == CAN ) {
            char buf[ 21 ];
            port.Read( buf, 20, 500 );
            if ( strnicmp( buf, "B00000000000000\r\n", 17 ) == 0 )
                zmodem->Receive( 0 );
            else {
                putc( CAN, stdout );
                for ( int i = 0 ; buf[ i ] ; i++ )
                    putc( buf[ i ], stdout );
            }
        } else if ( c > 0 )
             putc( c, stdout );
    }
    return 0;
}

// ********************** END OF TESTZM.CPP **********************