Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!mips!apple!agate!ucbvax!IFI.UIO.NO!ingea From: ingea@IFI.UIO.NO (Inge Arnesen) Newsgroups: comp.windows.ms.programmer Subject: Windows RS 232 and 16550 Message-ID: Date: 9 Jan 91 09:18:49 GMT Sender: daemon@ucbvax.BERKELEY.EDU Lines: 20 As have been pointed out by many, the COMMs handling in Windows 3 in 386 Enhanced mode is simply awful! Character loss will occur at high speeds on both high speed DX's and 16MHz SX's. The 8250/16440 compatible chip NS 16550, mainly a chip suited for UNIX, XENIX or other non-realtime OS's, saves the day for Windows 3 users. I've had the chips around for a while, but only last week did I fetch the soldering iron and did some surgery to an old RS card. Installing a serial driver in CONFIG.SYS patched up for the 550 FIFO support, and.... whiz bang! 38400 baud without problems on a 20MHz SX. If only the terminal emulators could speed up a bit.... DynaComm barely keeps up with 4800 baud...... Anybody seen a fast Windows terminal emulator ???? Inge (BoB) { ingea@ifi.uio.no } ========================================================================= == Inge Arnesen, University of Oslo, Norway. == == ==