[Rtai] Rtai Digest, Vol 129, Issue 2

[Cédric]

Hello,
I am also very interested in the tests on the serial link, I used it
without problem on RTAI 3.8. There have been big changes (detection of MOXA
cards automatically), and I do not know how to use this new version of the
16550A module on RTAI 5.
Best Regards

Send Rtai mailing list submissions to
To subscribe or unsubscribe via the World Wide Web, visit
https://mail.rtai.org/cgi-bin/mailman/listinfo/rtai
or, via email, send a message with subject or body 'help' to
You can reach the person managing the list at
When replying, please edit your Subject line so it is more specific
than "Re: Contents of Rtai digest..."
1. Re: serial communication (Paolo Mantegazza)
----------------------------------------------------------------------
Message: 1
Date: Thu, 6 Sep 2018 13:54:28 +0200
Subject: Re: [Rtai] serial communication
Content-Type: text/plain; charset=utf-8; format=flowed
I've not (re)tested 16650 with the latest RTAI. The test case may not be
up to date with the latest RTDM. It is on my to do list, but I've to
find some time, either to upgrade my old PIII, which has a serial port,
or to use an USB-RS232 adapter on a newer machine.
In in a hurry, I'd rather modify rtai_serial to support memory_mapped IO.
If there is not too much rust in my mind, mapping should be the standard
way and the rest could come from a simple rewrite of outb/inb functions.
Paolo.

Hi,
I want to do realtime serial communication over a UART. So I first tried
the rtai_serial module. This perfectly works with the legacy iomapped

UART.

However, my UART are memory mapped and I think the rtai_serial module

doesn't

support it.
So I tried the rtai_16550A module based on the RTDM layer. It doesn't

work

with the legacy UART.
I tried the example 'test' from the directory rtdm in the showroom. It

seems

the driver doesn't find the UART and there's something wrong with

parameters.

rtai_16550A: unknown parameter 'ioaddr' ignored
hello_world_lxrt: error in rt_dev_open()
-is the rtdm and rtai_16550A uptodate and known as working in RTAI 5.1?
-is the rtai_16550A driver the right solution for memory mapped UART?
-what are the right params to the rtai_16550A?
Any help is appreciated.
Felix
_______________________________________________
Rtai mailing list
https://mail.rtai.org/cgi-bin/mailman/listinfo/rtai

------------------------------
Subject: Digest Footer
_______________________________________________
Rtai mailing list
https://mail.rtai.org/cgi-bin/mailman/listinfo/rtai
------------------------------
End of Rtai Digest, Vol 129, Issue 2
************************************