How to check debug message from adf_os_print()?

[Matteo Danieletto]

Thanks Oleksij,

I soldered 49th how suggested in wikidevi, I modified the firmware adding adf_os_print.
When I opened minicom I set upped the serial port (ttyUSB0) with 19200 baudrate.

However I didn’t see any output. So I read the data sheet  and I found some different how reported in wikiDevi.
In wikidevi the 49th pin is GPIO8 instead in data sheet is GPIO10. The 21st pin is the GPIO8  -General purpose and multiplexed serial input data from an SPI device-.

BTW,I was watching the solder made by Oleksij and I recognized that the chipset is ar7010 and the pin was 48th pin (GPIO8)

Do I solder the 21st for my a r9721?

Thanks a lot
Matteo 
 
On Jan 20, 2014, at 7:43 PM, Oleksij Rempel <linux at rempel-privat.de> wrote:

> Am 20.01.2014 16:36, schrieb Matteo Danieletto:
>> Hi all,
>> a couple of months ago a I tried to solder in my TL-WN722N some pins how suggested by Oleksij.
>> It was very hard without the right equipment and time.
>> Now I am following this conversation and I am seeing a new hope.
>> 
>> So, is it necessary only to solder the UART-TX pin (in my case the 49th pin)? nothing else?
> 
> yes
> 
>> 
>> The adf_os_print’s output is visibile through minicom?
> 
> yes
> 
>> Thanks a lot
>> Matteo
>> 
>> 
>> On Jan 18, 2014, at 1:15 AM, Linus Lüssing <linus.luessing at web.de> wrote:
>> 
>>> Hi Eric Liu,
>>> 
>>> On Fri, Jan 17, 2014 at 12:13:53PM -0500, Xiaoyi Liu wrote:
>>>> Hi there,
>>>> 
>>>> I'm modifying the firmware source for my *TL_WN821N* usb adapter, and I'm
>>>> trying to use *adf_os_print()* to print out the debug message. Where can I
>>>> find the debug message on my Linux?
>>>> 
>>>> Thanks!
>>>> -Eric Liu
>>> 
>>> I was wondering about how adf_os_print() works a while ago, too.
>>> See my questions and Oleksij's answers in December.
>>> 
>>> What you need to do: Buy a serial console and solder it to one
>>> PIN, the UART-TX one, on the chip of your usb adapter.
>>> 
>>> You can find the correct PIN on wikidevi.
>>> 
>>> All this worked like a charm for me (after someone else did the
>>> soldering job for me...).
>>> 
>>> Cheers, Linus
> 
> -- 
> Regards,
> Oleksij