From: Wolfgang Grandegger <wg@domain.hid>
To: Everett Wang <everteq@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] problem with serial example
Date: Sun, 23 May 2010 18:28:06 +0200 [thread overview]
Message-ID: <4BF95796.6030504@domain.hid> (raw)
In-Reply-To: <AANLkTinUBnuLgLj-k_rPVEPHtgf8gC5ZtTcbgnmspRn7@domain.hid>
On 05/23/2010 06:19 PM, Everett Wang wrote:
> On Sun, May 23, 2010 at 11:46 PM, Wolfgang Grandegger <wg@domain.hid> wrote:
>> There are other possibilities to interact with Linux, e.g. telnet,
>> slogin or netcat. But it's always good to have a console.
>>
> I guess I need a USB to ethernet for these.
Yes.
...
>> All three uarts are occupied by Linux and you cannot use them as
>> rtserial. First you need to release at least one of them. What Linux
>> config do you use for your board?
>
> I didn't do any configuration. Do you mean to config these during kernel
> configuration?
Can you show us the .config of your kernel?
Some more insights:
I think the serial ports for the beagle boards are configured in:
http://lxr.linux.no/#linux+v2.6.34/arch/arm/mach-omap2/serial.c
Therein you find entries like:
http://lxr.linux.no/#linux+v2.6.34/arch/arm/mach-omap2/serial.c#L82
As you can see, a regshift of 2 is used, which is not yet supported by
the 16550A RTDM driver. Should not be a big deal to add it, though.
Also, as "baud_base" you should use OMAP24XX_BASE_BAUD.
Wolfgang.
next prev parent reply other threads:[~2010-05-23 16:28 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-23 3:48 [Xenomai-help] problem with serial example Everett Wang
2010-05-23 9:37 ` Wolfgang Grandegger
2010-05-23 14:59 ` Everett Wang
2010-05-23 15:29 ` Gilles Chanteperdrix
2010-05-23 16:12 ` Everett Wang
2010-05-23 15:46 ` Wolfgang Grandegger
2010-05-23 16:19 ` Everett Wang
2010-05-23 16:28 ` Wolfgang Grandegger [this message]
2010-05-23 23:36 ` Everett Wang
2010-05-24 7:32 ` Everett Wang
2010-05-24 15:45 ` Wolfgang Grandegger
2010-05-25 13:47 ` Everett Wang
2010-05-26 5:38 ` Wolfgang Grandegger
2010-05-27 1:22 ` Everett Wang
2010-05-27 7:34 ` Wolfgang Grandegger
2010-05-23 16:28 ` Wolfgang Grandegger
2011-02-24 9:29 ` [Xenomai-help] problem with xeno_16550A:Fatal Module not found zair
2011-02-24 10:46 ` Gilles Chanteperdrix
[not found] ` <AANLkTinRd-KQ1HKy1tn1USfxL-8GT8FdZKujKTzfo_HE@mail.gmail.com>
2011-02-25 18:36 ` Gilles Chanteperdrix
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