From: David Jander <david.jander@protonic.nl>
To: "'linuxppc-embedded@ozlabs.org'" <linuxppc-embedded@ozlabs.org>
Subject: The RS485 driver problem...
Date: Mon, 31 Jan 2005 09:51:24 +0100 [thread overview]
Message-ID: <200501310951.24600.david.jander@protonic.nl> (raw)
Hi,
If you want to connect a RS485 transceiver to a normal UART, you always have
the problem of dealing with enabling/disabling transmitter and recveiver. I
have seen hardware that misuses RS-232 hardware handshaking lines (RTS/CTS)
for this purpose. What I have not been able to find is a linux driver or
software solution to this problem.
Has anybody used the CPM uarts (or even a standard 16C550 uart) for this
purpose? How?
Greetings,
--
David Jander
Protonic Holland.
next reply other threads:[~2005-01-31 8:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-31 8:51 David Jander [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-02-02 8:27 AW: The RS485 driver problem Martin Krause
2005-02-02 13:15 ` Mark Chambers
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