Path: utzoo!utgpu!watserv1!watmath!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!dali.cs.montana.edu!milton!uw-beaver!zephyr.ens.tek.com!tektronix!percy!omen!caf From: caf@omen.UUCP (Chuck Frosberg WA7KGX) Newsgroups: comp.dcom.modems Subject: Re: Questions on High speed UARTS Message-ID: <14@omen.UUCP> Date: 29 Nov 90 07:40:43 GMT References: <6Dk8s3w163w@mudos.ann-arbor.mi.us> <1990Nov28.040535.7891@jwt.UUCP> Organization: Omen Technology INC Lines: 18 In article <1990Nov28.040535.7891@jwt.UUCP> john@jwt.UUCP (John Temples) writes: -In article bradfrd2@ncar.ucar.edu (Mark Bradford) writes: ->I have >heard< that Western Digital 16550As have some sort of problem ->that National Semiconductor 16550s don't - -I have three of the WD parts and one NS part in my Digiboard. I have -yet to notice any anomalies from the WD chips. --- -John W. Temples -- john@jwt.UUCP (uunet!jwt!john) Early WD chips have problems transmitting at slow speeds (< 4800 or so). I haven't heard of a fix yet other than disabling the FIFO. Chuck Forsberg WA7KGX ...!tektronix!reed!omen!caf Author of YMODEM, ZMODEM, Professional-YAM, ZCOMM, and DSZ Omen Technology Inc "The High Reliability Software" 17505-V NW Sauvie IS RD Portland OR 97231 503-621-3406 TeleGodzilla:621-3746 FAX:621-3735 CIS:70007,2304 Genie:CAF