Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cica!ctrsol!uakari!indri!dogie.macc.wisc.edu!uwvax!astroatc!nicmad!madnix!perry From: perry@madnix.UUCP (Perry Kivolowitz) Newsgroups: comp.sys.amiga Subject: Re: DECnet for the Amiga Message-ID: <735@madnix.UUCP> Date: 22 Jul 89 17:51:14 GMT References: <735@orbit.UUCP> <791@medsys.UUCP> Reply-To: perry@madnix.UUCP (Perry Kivolowitz) Organization: ASDG Incorporated Lines: 28 In article shadow@pawl.rpi.edu (Deven T. Corzine) writes: >On 19 Jul 89 23:25:24 GMT, >bbs@medsys.UUCP (BBS login) said: >bbs> Was this guy serious when he said the Amiga's serial port >bbs> couldn't run above 19,200 baud??? Call him back and ask if he's >bbs> ever seen EMIT. It's PD, and allows two Amigas connected by >According to the hardware manual, the Amiga's internal serial port >tops out somewhere over a million baud. (!) However, it will drop >bits attempting to READ at that rate. (Optimizing the serial.device >driver might increase the maximum effective speed...) It can easily >go far beyond 19200. (Though many comm programs often don't offer it >as an option, oddly.) First, if it were easy, it would have been done. Actually, the price that you pay for going faster with the Amiga's own serial port is full take over of the machine. The Amiga's serial hardware, with zero buffering, will lose characters at much above 32,000 baud even if you bypass the Amiga's serial device and go directly to the hardware unless you disable ALL interrupts. The advantage of an expansion serial board (like the ASDG Dual Serial Board) is that you can go 115,200 baud and still multitask and not lose bytes. -- Perry Kivolowitz, ASDG Inc. ARPA: madnix!perry@cs.wisc.edu {uunet|ncoast}!marque! UUCP: {harvard|rutgers|ucbvax}!uwvax!astroatc!nicmad!madnix!perry CIS: 76004,1765 (what was that about ``giggling teenagers''?)