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Diskussions- und Newsboard des DARC-Ortsverbandes I40  |  allgemeine Kategorie  |  OVI40 SDR Projekt (English AND German discussions around OVI40 SDR project) (Moderators: DF8OE, DL1PQ)  |  Topic: Audio codec WM8731 not detected <- zurück vorwärts ->
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Co
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Audio codec WM8731 not detected
« on: 16. February 2019, 11:48:22 »

Good afternoon,

When I power-on my MCHF-OVI40 i sometimes get the error message as per above. I suspect a bad solder joint. It would be helpful to know when the error message is being generated in order to limit the problem search.  I suspect at start up of I2C. Is this correct?

73

Co
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DF8OE
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Re:Audio codec WM8731 not detected
« Reply #1 on: 16. February 2019, 12:02:46 »

Hi Co,

yes. The problem must be located in I2C lines to codecs or (!!) power supply of codecs.

Good luck!
Andreas
« Last Edit: 16. February 2019, 12:03:01 by DF8OE » Logged

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Re:Audio codec WM8731 not detected
« Reply #2 on: 17. March 2019, 10:33:18 »

Hi all,

I got also this error at startup of my mchf/ovi40 transceiver, are you success to resolve it ?

Andreas, I found this old post https://github.com/df8oe/UHSDR/issues/961. In this post you wrote that the IC2 speed can be changed, I would like to test this, but I could't found the menu in the Configuration menu. I use the last version of the firmware, is it still possible to do this with this version ?
Regards.

73's, Stéphane, F5UGQ.
« Last Edit: 17. March 2019, 16:30:51 by f5ugq » Logged
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Re:Audio codec WM8731 not detected
« Reply #3 on: 30. March 2019, 11:08:50 »

Hi all,

for information, solved for me by the replacement of the 3v regulator KA78RM33RTF, there was no 3v but less than 1v.

73's, Stéphane, F5UGQ.
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Diskussions- und Newsboard des DARC-Ortsverbandes I40  |  allgemeine Kategorie  |  OVI40 SDR Projekt (English AND German discussions around OVI40 SDR project) (Moderators: DF8OE, DL1PQ)  |  Topic: Audio codec WM8731 not detected <- zurück vorwärts ->
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