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microphone array board which version is 1.4 cannot work

Posted: Tue Nov 21, 2017 3:05 pm
by shanghaiwangyong
Hello,

we buy a microphone array board which version is 1.4 ,we find that the VBUS voltage is not connect to the XCMOS chip VBUS pin. we use the latest version software(sw_usb_audio-[sw]_6.15.2rc1.zip) ,bulid it,burn it into our the microphone array board, we find the USB is not work, when we tie a wire from the VBUS pin to the 5V, the USB function is work.so we doubt that the softare is too old for the 1V4 version board. Can you tell me how to solve this problem?

Re: microphone array board which version is 1.4 cannot work

Posted: Fri Nov 24, 2017 11:05 am
by matthew1
Sorry for the delay in replying, I'm following this up internally and will get back to you with a solution ASAP.

Matthew.
XMOS

Re: microphone array board which version is 1.4 cannot work

Posted: Thu Nov 30, 2017 11:09 am
by matthew1
Apologies for the delay in replying. We have published a design advisory on this issue here:

https://www.xmos.com/download/private/D ... 281%29.pdf

It's a workaround for now rather than a solution, but it will help to get you working with the array mic board without having to make physical mods.

I hope this helps!

Matthew.
XMOS

Re: microphone array board which version is 1.4 cannot work

Posted: Tue Dec 05, 2017 4:03 am
by shanghaiwangyong
Thank you for your reply .