[Pkg-raspi-maintainers] Serial on Raspi 3

[Michael Stapelberg]

[+cc pkg-raspi-maintainers, in case someone else has run into this issue
before]

I have only verified the serial port works with 115200 8n1.

Please report an upstream Linux kernel bug, as there are no Debian-specific
changes in this area of the kernel.

Sorry I can’t be of more help,

On Sun, Feb 18, 2018 at 11:59 AM, Thomas Wuensche <wuensche at ems-wuensche.com
> wrote:

> Hello,
>
> after having troubles with the unclear kernel upgrade structures
> on raspbian I switched to your debian image. However I have troubles
> with the serial port - hope you can help.
>
> My project needs serial data from a sensor module. If I go with
> serial-over-usb it works, however not with direct connection.
>
> After a number of fruitless tries I have the following constellation:
>
> If I output serial data to /dev/ttyS1 I can see the data on the port
> lines with the oscilloscope and read back the data from that port.
> However when trying to switch line parameters, stty does not come
> back. So I can not adjust the required terminal parameters.
>
> If I try the same with /dev/ttyAMA0 I do not see anything on the
> port and can't read back data. However changing port parameters
> works. In message log I have a line:
>
> uart-pl011 3f201000.serial: no DMA platform data
>
> I have tried both with and without "enable_uart=1" in
> /boot/firmware/config.txt
>
> As I'm playing for weeks now with that issue and no result I would
> be glad if you could help me!
>
> Best regards,
>
> Thomas Wuensche
> --
> EMS Dr. Thomas Wuensche e.K.
> Sonnenhang 3
> 85304 Ilmmuenster
> HR Ingolstadt, HRA 170106
>
> Phone: +49-8441-490260
> Fax  : +49-8441-81860
> http://www.ems-wuensche.com
>



-- 
Best regards,
Michael
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