Diskussions- und Newsboard des DARC-Ortsverbandes I40 
allgemeine Kategorie => OVI40 SDR Projekt (English AND German discussions around OVI40 SDR project) => Message started by: Paul C. H. on 29. January 2018, 01:24:19
Title: [solved] WM8731 not detected
Post by: Paul C. H. on 29. January 2018, 01:24:19
Dear all,

I am building my OVI40 UI board, successfully installed the CPU, LCD and boot up normally.

But I see "WM8731 not detected" even I have installed both (and also resistors bridging the serial buses, verified soldering with 10x mini microscope).

To pinpoint the problem, I want ask if the "WM8731 not detected" refers to U1 or U12?

Paul
Title: Re:WM8731 not detected
Post by: Paul C. H. on 29. January 2018, 09:26:28
Quote from: DL8EBD on 29. January 2018, 04:15:06
The 3V for the codecs come from the RF board.


I temporarily borrowed 3V3 from UI_3V_CPU rail. Very nice design with three DC supplies of 3V3.
No more error message, thanks DL8EBD.

Paul



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