Hola Ismael, http://www.piclist.com/andrewspicos/index.htm If you download the sources and assemble picos.asm, it will provide a command line interface over the USART1 as you describe. Good Luck and Have Fun! John E. A. ------------- original message ------------- Date: Mon, 6 Mar 2000 11:41:05 +0100 From: "Ismael M. Khangane" Subject: HELP:Codes in Assembly for RS232 comm. PIC<->PC for PIC17C756 Hello, I have been trying to communicate from pic17c756 to the PC through USART-Asynchronous mode without success. Here I am sending a code in assembly so that somebody can help me to te where is am I wrong? or if there is a site where i can get them ready made I will appreciate as I am a little bit delayed with my Project time table. Regards, ------------------------------------------------------------------ Ismael M. Khangane, Specialist in Robotics. Automatic Control & Systems ( Bsc in Eng.) Instituto de Automatica Industrial IAI-CSIC Madrid, Spain. Tel: (34) 91 871 1900 Fax: (34) 91 871 7050 E-mail: imkesp@excite.com ; ismaelm@iai.csic.es ------------------------------------------------------------------