http://www.ucl.ac.uk/~ucapwas/pportbas.html is a link about interfacing to the parallel port. Decide what kind of parallel interface you want on the PC side before planning how to implement the PIC end- ie whether you want to use ECP for dma transfers or whether you want to poll the pic to see if has any available data. In this situation you can make either the pc or pic the master or slave device to suit your needs. -- Jon Baker jb707017@hotmail.com ----- Original Message ----- From: "Delhaye Marijn" To: Sent: Wednesday, January 09, 2002 7:06 PM Subject: [PIC]:parallel connection Hello , i'm a beginner with Pic programing . I need to make a connection between the PC and the PIC16F877 . The PIC is the master of an RS485-bus and the information from the RS485 bus must be viewed at the PC-screen . How i must make the connection with the PC ?(parallel) How i sent or receive ascii-code ? -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body