[coreboot] Getting output from serial..... kinda....

David Houston root at crankyadmin.net
Sun Dec 6 20:17:15 CET 2009


>
> 1) do you port new motherboard ?


I am.

2) if you  set speed to 115200 do you see something if you set on the other
> side 57600 or 28200 bauds?


Both set to 115200, works fine with OEM BIOS to get linux console up.

3) if you set coreboot to 57600 and the other side to 115200 do you get
> something?


Same

4) Sometimes when the clock is nearly 115200 but a bit off some USB serials
> cannot handle that. Maybe you can try to connect some other device, or try
> to test with some real serial line on some other PC.


Works on another PC.

If it is any help, minicom flicks between online and offline when doing it.

Dave
-------------
root at crankyadmin.net
cranky at archlinux.us


On Sun, Dec 6, 2009 at 7:12 PM, Rudolf Marek <r.marek at assembler.cz> wrote:

> Hi,
>
> Please answer following:
>
> 1) do you port new motherboard ?
>
> 2) if you  set speed to 115200 do you see something if you set on the other
> side 57600 or 28200 bauds?
>
> 3) if you set coreboot to 57600 and the other side to 115200 do you get
> something?
>
> 4) Sometimes when the clock is nearly 115200 but a bit off some USB serials
> cannot handle that. Maybe you can try to connect some other device, or try
> to test with some real serial line on some other PC.
>
> Rudolf
>
>
>
> David Houston napsal(a):
>
>> Hi all,
>>
>> Would anyone have any suggestions why all I get out of my serial port when
>> booting my coreboot build is
>>    ��FƢ���� =U$'E&&M#M y= �F ⌋!y= �F Ƌ!y=[$ M# MO"M
>> y=+_Y�b��������������#⣉/y
>>    =+OIfyy=[$K KO K!K$L��� H#C1 �"b�㢢�VM  K$LcDbD�b�#㢉
>>
>>                               #㌢
>>
>>       #㢉
>>                                                           #㌢
>>
>>
>>
>> I know the usb converter is good as I have tested it on another machine.
>> And I know the serial port is good as I have got a linux terminal up with
>> the OEM Bios.
>>
>> I'm not sure what else to attach to help diagnose the issue.
>> regards
>>
>> Dave
>> -------------
>> root at crankyadmin.net <mailto:root at crankyadmin.net>
>> cranky at archlinux.us <mailto:cranky at archlinux.us>
>>
>>
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