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- From: davidg@aegis.or.jp (Dave McLane)
- Newsgroups: comp.dcom.modems
- Subject: Re: 82510 UARTs and 16550A UARTs
- Message-ID: <2389@aegis.or.jp>
- Date: 17 Aug 92 22:58:16 GMT
- References: <1992Aug17.151620.29438@access.usask.ca>
- Organization: Aegis Society, Kyoto Japan
- Lines: 48
-
- tan@skorpio.usask.ca (Chris Tan) writes:
-
- >My computer has two 82510 UARTs soldered in its serial ports.
- >After reading the docs to the Fossil Driver X00V124.ZIP, I
- >realized that the 82510 UART has a 4 byte FIFO buffer, similar
- >to the 16550A UART's 16 byte FIFO buffer.
-
- The serial ports on my Dell 333D were built into a chip doing
- a bunch of stuff....
-
- >Using a SupraFaxModem v.32bis, I normally have no problems when
- >my serial port is set to 19200, but when I try higher speeds like
- >38400 and 57600, I get character loss from the serial port.
-
- Yes, the Dell ports had the same 'feature'.
-
- >My questions are as follows:
-
- > 1) Is there any terminal program out there that supports an
- >82510 UART and its FIFO buffer? Also, a list of any term programs
- >that use the X00 Fossil driver would be helpful.
-
- Even if you could, you would still only have a 4 port FIFO.
-
- > 2) For whoever has a 16550A UART; is it possible to set your
- >serial port to 38400/57600 and get no character loss?
-
- I got a little 2-port card with 16550A UARTs on it from Decision Ltd
- in Taiwan for $44 and run it at 38400 without problems.
-
- My real-world tests have shown that I don't need any faster than
- 38400 as there isn't any data that gets sent that needs to go out
- the port to the modem any faster than that. Maybe it would work
- at 38400+ but why temp fate?
-
- Also, FYI, Decision makes a 4 port AST-4 clone card for $98 which
- can be run as COM1,COM2,COM3,COM4 or with FAS under UNIX. I have
- both cards in my Dell under FAS and they work well with no data loss
- and very little overhead.
-
- Hope that helps,
-
- Dave
-
- --
- Dave McLane
- JUNET: davidg@aegis.or.jp (ONLY within Japan: post otherwise)
- Nagaokakyoshi, Kyoto Japan Tel: +81-75-951-1168 Fax: +81-75-957-1087
-