Date: Tue, 15 Oct 1996 14:44:24 -0800 (AKDT) From: hmmm <hmmm@alaska.net> To: freebsd-questions <questions@freebsd.org> Message-ID: <Pine.SOL.3.91.961015142254.25395A-100000@calvino>
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i'm not to great at UNIX and would appreciate any guidance in proceeding with the following: i have a FBSD box that needs to communicate with another non-UNIX box using a custom async protocol. my current state of ignorance would just like to mark off a BSD com port, throw in a polling-based driver for the marked off port, and be on my way, without further complications. but i think i'm oversimplifying. i think i'd have trouble because the remote PC would cause overruns in the FBSD box due to FBSD interrupts. if i have to use a standard FBSD sio driver for the com port i wish to use, what special considerations/configurations do i need to take into account? can i just connect the 2 PCs with a NULL modem cable and start C coding with some print routines in/out the ports? does it matter whether i use a NULL modem cable between the FBSD box and the remote PC as opposed to 2 radio modems? (diff cfgs?) is there a good libc function that allows you to putarray(numofbytes)/getarray(numofbytes) and puts()/gets() in and out of sio ports? ------------------------------------------------------------------------------ ? http://www.alaska.net/~hmmm ------------------------------------------------------------------------------
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