TDM between AD1401 and AD1940 eval boards
Hi,
I've been able to send I2S stereo audio from a AD1401 eval board to a AD1940d board by connecting them as described in
https://ez.analog.com/thread/35830
Now I'd like to try sending TDM audio across the same interface, but cannot make it work. As far as I can tell, the wiring between the boards as well as the boards' jumper settings remain the same for I2S and TDM. After setting both chips' register controls for TDM, I find that the -1401 board is not sending any data to the -1940 board.
I attached the project file for each board:
1401 -- Two channels of analog in, straight to two used channels (out of eight) TDM
1940 -- TDM in, two channels out to analog
I'm hoping someone could look at the register settings therein and see what's wrong.
Bob
This issue is moot as the revised design no longer uses TDM.
Thanks, Bob. Sorry we let this one slip through the cracks.
Hello Brett,
No worries. Funny, though, I just spoke with Mike here and as it turns out, TDM is back into the design in question (a mixer with several SigmaDSP chips talking to each other). We need more channels than what straight I2S can provide. So I'd like to pursue the above question after all. Sorry about the confusion.
Best regards,
Bob
This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.
Thank you,
EZ Admin
Please log in to reply.