getting NSH console to listen to a particular UART?

[Adam Feuer <ad...@starcat.io>]

Hi,

Just restating the subject line for clarity.

The SAMA5D36-Xplained has an on-chip debug serial port, the DBGU. That port
board boots NuttX and the NSH console works. The SAMA5D27-XULT board has a
DEBUG port, but it appears to be connected to the SAMA5D27's UART2 via a
factory programmed AT32UC3A4256HHB
<http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-44028-32-bit-Cortex-A5-Microprocessor-SAMA5D2-Xplained-Ultra_User-Guide.pdf>
.

I can compile and boot NuttX on the SAMA5D27-XULT if I disable the DBGU.

In the menuconfig system I looked for a way to get an NSH prompt on UART2,
but didn't find it. Is there a way to do that? If so, how? Or can I put an
NSH prompt on a USB interface?

cheers
adam
-- 
Adam Feuer <ad...@starcat.io>

Re: getting NSH console to listen to a particular UART?

[Adam Feuer <ad...@starcat.io>]

Thanks for the help! And I'll keep trying with the UART1 for now.

-adam


On Thu, Dec 26, 2019 at 4:43 PM Gregory Nutt <sp...@gmail.com> wrote:

>
> > In the menuconfig system I looked for a way to get an NSH prompt on
> UART2,
> > but didn't find it. Is there a way to do that? If so, how? Or can I put
> an
> > NSH prompt on a USB interface?
>
> I mentioned that but I thought you wanted to use the CDC/ACM serial port
> on the AVR32.  If you want to use UART2, that answer is the same except
> that n=2 and 115,200 baud should be okay.
>
> When you said USB, were you talking about the CDC/ACM in the AVR32?
> That was not clear.  that is easy per the preceding response.  Getting a
> true USB port directly to the SAMA5D27 is a lot more complex.
>
> The place to look in the configuration menus is drivers -> serial.
>
> If you ever get lost in the configurations, type '/'.  A menu will come
> up an you can use it find configuration items in the menu tree and also
> any dependencies needed.
>
>

-- 
Adam Feuer <ad...@starcat.io>

Re: getting NSH console to listen to a particular UART?

[Gregory Nutt <sp...@gmail.com>]

> In the menuconfig system I looked for a way to get an NSH prompt on UART2,
> but didn't find it. Is there a way to do that? If so, how? Or can I put an
> NSH prompt on a USB interface?

I mentioned that but I thought you wanted to use the CDC/ACM serial port 
on the AVR32.  If you want to use UART2, that answer is the same except 
that n=2 and 115,200 baud should be okay.

When you said USB, were you talking about the CDC/ACM in the AVR32?  
That was not clear.  that is easy per the preceding response.  Getting a 
true USB port directly to the SAMA5D27 is a lot more complex.

The place to look in the configuration menus is drivers -> serial.

If you ever get lost in the configurations, type '/'.  A menu will come 
up an you can use it find configuration items in the menu tree and also 
any dependencies needed.