SPDIF incorrectly wired

[P Hibon]

The SPDIF connecter on the Wandboard is wired incorrectly and therefore unusable in many cases. Pins 2 and 3 are swapped. I recently bought a second Wandboard and notice that the board is still revision A0. I guess this means that the incorrectly wired SPDIF connecter hasn’t been corrected yet. Are there any plans to release an updated board where the SPDIF issue is corrected?

[P Hibon]

On Wednesday, May 29, 2013 10:32:33 PM UTC+2, P Hibon wrote:

The SPDIF connecter on the Wandboard is wired incorrectly and therefore unusable in many cases. Pins 2 and 3 are swapped. I recently bought a second Wandboard and notice that the board is still revision A0. I guess this means that the incorrectly wired SPDIF connecter hasn’t been corrected yet. Are there any plans to release an updated board where the SPDIF issue is corrected?

 

 

Just want to bumb this up since there aren't any replies yet. 

[Jim]

I'd also like to know what's happening with this issue. Is a new I/O
board planned?

[Chris Connaker]

Any news on this?

[Ionut Ana]

I just tested the quad version with the ubuntu image and I can confirm that spdif is working correctly.
The board and module have both in hand written revision B1 on them.

[stepha...@gmail.com]

Hi,

Thank you very much for this feedback regarding spdif.
I guess many people really wish to have a clear statement about this issue.
Unfortunately no official erratum nor answer from the team for now in spite of several questions...

For now, don't get too enthusiast. The issue may be still there : Have a look at this thread. It is by far the best info I have been able to found regarding this issue and it says :
"They swapped the connections to the VCC and VIN pins so that VIN is connected to the power supply (3.3V), and the VCC pin is connected to the SPDIF data out of the iMX6 processor.
The funny thing is that this actually works for some people"
So it may work in spite of the wrong wiring according to this source !

If only the board designers could share a clear status with us regarding this issue...

Best regards
Stephan

[Wand Board]

Hi,

WBQUAD userguide is nearly done and will be posted early next week. This includes BOM list for WBQUAD and also includes the schematics.

To confirm.

SPDIF has been updated for the WBQUAD. Also other items have been addressed. (MIPI, I2C selection for HDMI_DDC)

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[stepha...@gmail.com]

Hi,

Thank you very much : This confirmation is really appreciated !
There is nothing left which prevents me to rush to order a board now ;)

Regards
Stephan

[Nathan Myers]

I chose the Wandboard specifically for the built-in S/PDIF output.  What is the precise effect of this error? Is it fixable in the field, or must I send in the I/O board?

[P Hibon]

There is a bit of soldering involved to solve the incorrectly wired toslink connecter.

I completely removed the toslink connecter and punt it on a small board. At the same time I took this opportunity to add coax as well. If you are skilled with soldering then it is doable. See here for pics and more info:

http://www.communitysqueeze.org/image_gallery.jsp#Pascal_Hibon

[Nathan Myers]

Thank you, Pascal.  Any ideas on why S/PDIF would work anyhow,
for some people?  I can imagine a component that has two LEDs
wired oppositely in parallel, so it works either way, but that seems
unlikely.  People misreporting results seems more likely, but how
did the prototypes get past QA?