
/*
//      LISTING 2
*/

/****************************************************************************
//
// main() - test driver for crc16 function
//
****************************************************************************/

#include <stdio.h>

main(argc, argv)
int argc;
char *argv[];
{
        unsigned short crc;
        static unsigned char string[40];
        string[0] = 'T';
        string[1] = (unsigned char)0xd9;
        string[2] = (unsigned char)0xe4;
        string[3] = NULL;

        printf ("The crc of \"T\" is 0xD9E4. crc16 returned 0x%X.\r\n\n",
                        crc16(string, (short)1));
                 
        printf ("The crc of \"T 0xD9 0xE4\" is %X. The value of crc_ok is 0x%X.\r\n\n",
                        crc16(string, (short)3), crc_ok);

        strcpy(string, "THE,QUICK,BROWN,FOX,0123456789");
        printf("The crc of \"%s\" is 0x6E20. crc16 returned 0x%X.\r\n\n", 
                        string, crc16(string, strlen(string)));
        
        string[0] = (unsigned char)0x03;
        string[1] = (unsigned char)0x3F;
        puts("CCITT Recommendation X.25 (1984) Appendix I example:");
        printf("\tThe crc of 0x03 0x3F is 0x5BEC. crc16 returned 0x%X.\r\n\n",
                        crc16(string, (short)2));

        puts("strike RETURN to continue...");
        getchar();

}

