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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!n8emr!elektro!charlie
- From: charlie@elektro.cmhnet.org (Charlie Smith)
- Subject: Re: How to increase speed of communications in OS/2 2.0
- Message-ID: <1992Dec19.014832.7465@elektro.cmhnet.org>
- Keywords: os2 waffle 165
- Organization: Why do you suspect that?
- References: <4ewqVB16w165w@vicuna.ocunix.on.ca> <brown.198.724388877@chinchilla.ir.ucf.edu> <8149@lib.tmc.edu>
- Date: Sat, 19 Dec 92 01:48:32 GMT
- Lines: 23
-
- In article <8149@lib.tmc.edu> jmaynard@oac.hsc.uth.tmc.edu (Jay Maynard) writes:
- >In article <brown.198.724388877@chinchilla.ir.ucf.edu> brown@chinchilla.ir.ucf.edu (Bill Brown) writes:
- >>This is probably your problem. Although the 16550AN has a FIFO buffer (a 16
- >>byte queue to prevent character overrun under high speed serial rates), it's
- >>completely broke. The 16550AFN is the fixed version of this chip.
- >
- >Sorry. The 16550 (non-A, non-AF) was the broken one. (The N is National
- >Semiconductor's package designator for a plastic DIP.) The 16550A fixed the
- >FIFO so that it works. I'm using two of them continuously under heavy loading,
- >and the FIFOs work fine. The AF fixed an obscure bug, but the info I have is
- >that there's no practical difference in normal use.
- >
-
- I've got a whole bag full of PC16550CN chips ... where do these fit in the
- scheme?
-
-
- Charlie Smith charlie@elektro.cmhnet.org csmith@dsac.dla.mil whois ces10
- Eves: 614-471-1418 Days: 614-692-9064 FAX: 614-692-8217
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- Columbus Ohio USA
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