Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!nic.MR.NET!umn-cs!ns!logajan From: logajan@ns.UUCP (John Logajan x3118) Newsgroups: sci.electronics Subject: Re: Question: 10,000 bit wide UART Message-ID: <1143@ns.UUCP> Date: 20 Feb 89 16:35:08 GMT References: <10108@pasteur.Berkeley.EDU> Distribution: usa Organization: Network Systems Corp. Mpls MN Lines: 16 Alan Nishioka asks: > I am trying to build a digital data link, as an experiment, which uses > variable length packets (from 1 to about 10,000 bits in length). This sort of thing is almost always done more easily in software than in hardware (also much more cheaply.) Assuming your running your "UART" at conventional speeds, you could easily write machine language (and many higher level languages) which could easily assemble your bit stream in memory. Hardware requirements are then pratically ziltch (beyond the computer), you only need a single bit (such as one bit on a parallel input port -- many printer ports have bi-directional data lines which would be sufficient for your project.) -- - John M. Logajan @ Network Systems; 7600 Boone Ave; Brooklyn Park, MN 55428 - - ...rutgers!umn-cs!ns!logajan / logajan@ns.network.com / john@logajan.mn.org -