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I have designed the ADAU1702 into an engineering breadboard, using the MINIB eval board as the basis. I've replicated the circuitry as exactly as possible, but cannot get communications working with SigmaStudio via the ADUSB2Z adaptor board... yet when I

Question asked by TideTracker on Aug 31, 2015
Latest reply on Jun 1, 2016 by KJBob

I have designed the ADAU1702 into an engineering breadboard, using the MINIB eval board as the basis of the design. I've replicated the circuitry as exactly as possible, but cannot get communications working with SigmaStudio via the ADUSB2Z adaptor board... yet when I plug into a genuine ADI eval board, it works fine. I'm wondering about the use of pin 2 on J8 of the mini eval board... it appears to have the label 'USB_CLK', but there is no other signal with that name in the schematic.... yet the ADUSB2Z adaptor board appears to make a connection to this pin via the flat cable. Can you tell me what this signal is, and whether it is essential for communications?

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