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- Path: sparky!uunet!olivea!decwrl!sdd.hp.com!hpscdc!hplextra!hpcc05!hpbbn!hpuamsa!franks
- From: franks@hpuamsa.neth.hp.com (Frank Slootweg CRC)
- Newsgroups: comp.sys.hp
- Subject: Re: How to operate 750 serial ports at 57600 baud?
- Message-ID: <28510298@hpuamsa.neth.hp.com>
- Date: 27 Jul 92 11:50:22 GMT
- References: <RAYMOND.92Jul23153140@anaconda.es.ele.tue.nl>
- Organization: Hewlett-Packard, The Netherlands
- Lines: 32
-
- raymond@es.ele.tue.nl (Raymond Nijssen) writes:
-
- > We're trying to connect a high-speed modem to our 9000/750.
- >
- > The modem is capable of running at 57600 baud, but the 750 (running 8.05)
- > builtin ports seem to be capable of running at 57600 and up, but
- > the software (stty, [uu]getty) seems to be limited to at most 38400 baud.
- >
- > Do I miss something?
- > Your help would be appreciated.
-
- From termio(7) :
-
- > DEPENDENCIES
- [deleted]
- > Series 700
- > Built-in serial ports on the Series 700 machines support the
- > following additional baud rate settings: 57600, 115200, 230400,
- > and 460800 baud. An RS-232-to-RS-422 converter may be required
- > to achieve actual throughput at these baud rates (because RS-232
- > only specifies up to 19200 baud).
-
- I don't know if there are any limitations in stty(1). In any case it
- is easy to write a little C program to set the baud rate and use stty(1)
- for the rest. See termio(7) for the required ioctl's.
-
- There is no need for uugetty(1m) on HP systems. We only supply it for
- compatibility reasons. See "Terminal port access interlock" in modem(7)
- as to why uugetty(1m) is not needed. I don't know if getty(1m) can
- handle 57600 baud, just try it.
-
- Frank Slootweg, HP, Dutch Customer Response Center
-