From: Wolfgang Denk <wd@denx.de>
To: "Graham Williams" <gwilliams@sbir.com>
Cc: "'saurosalomoni'" <saurosalomoni@bol.com.br>,
"'linuxppc-embedded'" <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: Lite5200 from RS232 to RS485
Date: Mon, 14 Jun 2004 17:37:23 +0200 [thread overview]
Message-ID: <20040614153728.13AD1C13D3@atlas.denx.de> (raw)
In-Reply-To: Your message of "Mon, 14 Jun 2004 07:47:33 PDT." <005801c4521e$86e0ea40$26c8a8c0@GMAN>
In message <005801c4521e$86e0ea40$26c8a8c0@GMAN> you wrote:
>
> I used tcgetattr and tcsetattr to set the termios settting like baud. I
> also had to recompile the kernel using make menuconfig and in MPC8xx CPM
> Options-> I selected Use SCCx UART then Use SSC1 UART then selected PC15 for
Ummm... but the MPC8xx CPM options _definitely_ have zero influence
on the behaviour of the MPC5200 PSC UART driver. This is completely
different hardware.
> RTS on SCC1 UART. Make sure the second UART device (ttyS1) is in the /dev
> directory and this should enable the RTS to work. You can only use RTS with
No, it will NOT work. I repeat: the existing driver DOES NOT SUPPORT
hardware handshake, so no matter what you do (short of extending the
driver) - it will not work.
> the SCCs and NOT the SMCs. Maybe the console ttyS0 is an SMC not an SCC at
> least that is the way my eval board was setup. I hope this helps.
Sorry, but it doesn't.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
Our missions are peaceful -- not for conquest. When we do battle, it
is only because we have no choice.
-- Kirk, "The Squire of Gothos", stardate 2124.5
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-06-14 15:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-14 11:54 Lite5200 from RS232 to RS485 saurosalomoni
2004-06-14 14:47 ` Graham Williams
2004-06-14 15:37 ` Wolfgang Denk [this message]
2004-06-22 14:53 ` Sauro Salomoni
-- strict thread matches above, loose matches on Subject: below --
2004-06-11 13:35 saurosalomoni
2004-06-14 17:53 ` Steve Kaiser
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