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Automation Protocol Appendix C – CRC Generation

Miranda Technologies Ltd Page 272

char message[128];

char* messageptr = (char*)message;

va_list argptr;

va_start(argptr, format);

vsprintf(message, format, argptr);

va_end(argptr);

rem_send_char(stx);

while((ch = *messageptr++) != 0)

{

rem_send_char(ch);

do_crc(ch, &rem_crc);

}

rem_send_char(':');

do_crc(':', &rem_crc);

rem_send_char(rem_crc & 0xff);

rem_send_char(rem_crc >> 8);

if (stx == STX0)

stx = STX1;

else

stx = STX0;

}