5 May
2021
5 May
'21
1:52 p.m.
AFAIK it shouldn't. No idea what can be wrong.. Maybe you could share your coreboot config and I may find something there?
Best regards,
--
Michał Żygowski
Firmware Engineer
https://3mdeb.com | @3mdeb_com
On 5/3/21 3:38 PM, lain via coreboot wrote:
> I tried two different firmware roms but both with HAP bit set.
> Could this affect the serial connectivity ( as SuperIO in PCH or smth ?
>
> On Monday, May 03, 2021 14:39 CEST, "lain" lain@datenwanderung.de wrote:
>
>> Hi Michal,
>>
>> I tired 2 Different USBto RS232 Converts, and a SerialPort on an
>> Thinkpad x60 dock, also flow control.
>> The Very same DB9 RJ45 cable works on a sun ultra.
>> Also tried Power unplug.
>> Maybe something firmware realted or faulty connector i would say
>> On Monday, May 03, 2021 14:27 CEST, Michał Żygowski
>> michal.zygowski@3mdeb.com wrote:
>>
>>> Hi Iain,
>>>
>>> On 5/3/21 2:20 PM, lain via coreboot wrote:
>>> > Does somebody has trouble with the Serial Port on an Protectli FW6C /
>>> > Yangling device ?
>>> > I am getting only Garbage ( yes i have checked the serial settings )
>>> >
>>> > How likely is a faulty connector ?
>>> I would check two things:
>>>
>>> 1. Faulty RS232 converter
>>> 2. Enabled hardware flow control.
>>>
>>> Such issue sometimes happened with the FW6 platform during the firmware
>>> development and the above were the main reasons. Don't forget to keep
>>> the hardware flow control off when opening the serial port in your
>>> terminal emulator. Please also try different RS232 converter if
>>> possible. I also encountered faulty samples of such converters which did
>>> not work reliably (I have a bunch of converters of the same model and
>>> vendor, but 1 out of 20 was simply not working). Alternatively you may
>>> unplug the converter from any power to let it reset, just in case the
>>> converter caught some escape sequence in a wrong moment. Very unlikely
>>> that something is wrong with FW6C platform.
>>> >
>>> > _______________________________________________
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>>> > To unsubscribe send an email to coreboot-leave@coreboot.org
>>> Best regards,
>>>
>>> --
>>> Michał Żygowski
>>> Firmware Engineer
>>> https://3mdeb.com | @3mdeb_com
>>>
>>> _______________________________________________
>>> coreboot mailing list -- coreboot@coreboot.org
>>> To unsubscribe send an email to coreboot-leave@coreboot.org
>>
>>
>>
>>
>
>
>
>
>
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