Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!rutgers!husc6!psuvax1!vu-vlsi!cbmvax!daveh From: daveh@cbmvax.UUCP Newsgroups: comp.sys.amiga Subject: Re: Amiga memory and serial questions Message-ID: <2901@cbmvax.UUCP> Date: Fri, 4-Dec-87 00:53:16 EST Article-I.D.: cbmvax.2901 Posted: Fri Dec 4 00:53:16 1987 Date-Received: Tue, 8-Dec-87 03:04:22 EST References: <1303@saturn.ucsc.edu> Distribution: na Organization: Commodore Technology, West Chester, PA Lines: 29 in article <1303@saturn.ucsc.edu>, wolf@ssyx.ucsc.edu (Mike Wolf,4264777) says: > Keywords: slow ram, fast ram, MIDI > In article <4558@pyr.gatech.EDU> gt4785b@pyr.UUCP (David Carter) writes: >>And since I didn't get any reply to my question "What bit rates are available >>on the serial port?" can somebody at least tell me what the MIDI bit rate is? >>I've heard 'guesses' of 32,768 and 30,500, but my communications text says >>that 20,000 bps is a practical upper limit for RS-232. >> >>David Carter (waiting for my A500!) > > Hmm, last time I checked, my GraphOn 250 can zip along as high > as 56.7 KBaud. Even old VT100's can do 19.2 KBaud. Yeah. Remember, everyone, that RS-232 is a complete protocol with all kinds of specs. All together, taking the longest permissible cable and other worst case things, the specification probably reads that 20,000 bps is the upper limit on what you can use without dropping bits. Sounds reasonable, but how many of you are using 100ft cables? For the 2 foot cable that goes between your Amigas, 31.8K or whatever is probably no problem. The RS-232 spec doesn't place any inherent limit on how fast your RS-232 hardware can run, only how fast physics might be likely to let it run over a long cable. And even at that, it might still work. It's just that if it doesn't meet the spec, it's not really RS-232. > Michael Wolf -- Dave Haynie Commodore-Amiga Usenet: {ihnp4|uunet|rutgers}!cbmvax!daveh "The B2000 Guy" PLINK : D-DAVE H BIX : hazy "I can't relax, 'cause I'm a Boinger!"