Wanted USB sniffing for AF Shift Adjustment

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Wanted USB sniffing for AF Shift Adjustment

Postby leegong » Sun Jan 19, 2014 7:09 pm

Hi , all ,
I got trouble with decoding Lens protocol , running progress of AF , Mirror and curtain ,
could anybody sniff USB communication while doing AF Shift Adjustment for D5100 with
the service software ? it will be greatly helpful for decoding .

Best regards,
Leegong
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Re: Want USB sniffing for AF Shift Adjustment

Postby 4cc3ss » Sun Jan 19, 2014 8:10 pm

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Re: Want USB sniffing for AF Shift Adjustment

Postby 4cc3ss » Mon Jan 20, 2014 10:06 am

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Re: Wanted USB sniffing for AF Shift Adjustment

Postby leegong » Tue Jan 21, 2014 4:57 pm

@Simeon,
If you see this , if you have time and don't mind , could you please take a look at sniffed data by 4cc3ss ?
In the sniffed data above , 0xFEB2 looks like PTP Operation Code very much ,
what's your opinion ?
but seems no input data(info) indicates which focus point is to be adjusted , or the AF shift value
is for all focus points ?
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Re: Wanted USB sniffing for AF Shift Adjustment

Postby Simeon » Tue Jan 21, 2014 6:47 pm

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Re: Wanted USB sniffing for AF Shift Adjustment

Postby 4cc3ss » Tue Jan 21, 2014 8:55 pm

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Re: Wanted USB sniffing for AF Shift Adjustment

Postby 4cc3ss » Tue Jan 21, 2014 9:53 pm

Hi lee,

Good news,
I'm able sniff focus data using AF insp. for focus adj.
i can manually focus by hand and data changes with this.. please
bare with myself it's been another late for for myself but i'll post sniff data later today. :)

Best regards,
4cc3ss
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Re: Wanted USB sniffing for AF Shift Adjustment

Postby leegong » Tue Jan 21, 2014 11:27 pm

Great news ! :beer:
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Re: Wanted USB sniffing for AF Shift Adjustment

Postby 4cc3ss » Wed Jan 22, 2014 3:25 am

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Re: Wanted USB sniffing for AF Shift Adjustment

Postby felis » Thu Feb 27, 2014 3:58 am

If you are referring to the data transferring that occurs during the 'AF adjustment' function in the service software, see my recent discovery in
http://nikonhacker.com/viewtopic.php?f=8&t=1784
In this post, I have established the UART communication with the D90 camera body and captured a plenty of communication sequences while running the service software.
Specifically, the 'AF adjustment' function for the D90 is essentially writing 84 bytes of the af adjustment data into the 'FLASH'. I think you may apply the same method on the D5100 and get the similar results.
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