[MinnowBoard] Debug display on HDMI display Vs on Hyperterm on Minnow board MAX

[Darren Hart]

On 9/9/14, 7:49, "David Anders" <danders at circuitco.com> wrote:

>Pavitra,
>
>
>> On September 9, 2014 at 5:29 AM Pavitra Ramanujam
>><pramanujam at sunedison.com>
>> wrote:
>>
>>
>> While working with Minnow board Max I could get the debug display of EFI
>> booting on HDMI. I was not able to display on hyperterm connected to
>> Minnowboard via serial debug except for the very first few messages.
>>After
>> that all display got diverted to HDMI display.
>>
>> How to address this issue?
>>
>> I am trying to boot Debian Squeeze Linux Kernel 2.6.32.
>>

I don't know if the serial port will work on that kernel. We support 3.14+
and recommend 3.16. The board should boot and provide basic functionality
on older kernels - one of the advantages of x86 - but you will still need
the newer device drivers to do much else with the board.

That said, I would expect the debug console to work as it is a basic UART
supported by the 8250 driver. Check to make sure you have the serial
console specified in your kernel command line:

console=ttyS0,115200

And that you have your terminal emulator configured accordingly.

--
Darren

>
>
>you would need to talk to the Debian folks on how they have the serial
>console
>configured....
>
>Dave
>
>
>> Regards,
>> Pavitra
>>
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-- 
Darren Hart					Open Source Technology Center
darren.hart at intel.com				            Intel Corporation