Hello to everyone,
I would like to use a maxim 9867 codec to communicate via I2S, with PCM protocol in TDM mode with the mdm9607, in stereo mode.
Below please find additional details about our application.
Also, referring to the integrated ALSA library, I would like to understand if it is possible to change the audio paths.
At present I can only use:
Record an active voice call (analog audio) :
Record an active voice call (digital audio):
Obtaining a 16K .wav file, with 2 equal channels.
But I have seen that with amix, I could give many other configurations (audio paths), as long as they are activated, and I would like to understand if I can use one to use DVI as audio data (nov voice call), so that I can read the 2 stereo channels.
Looking forward for your feedback
Best Regards
Hello to everyone,
the qualcomm device is an mdm9207 ( the kernel used is the one related to mdm9607 ).
At this link:
https://developer.qualcomm.com/hardware/mdm9207-startup-kit
I read:
But the link to github is broken.
Where can I find the repository for the mdm9207 startup kit?
Looking forward for your feedback
Thanks for the quick reply JD Dennis,
I am waiting for the startup kit link to understand if it is possible to modify some of the libraries present in the MDM9207 kernel.
I want to describe my problem:
We are currently designing a system based on your MDM9207 processor that captures stereo audio from 2 microphones and can send it over the network.
The codec used is the max9867 which can communicate with the mdm9207 via I2S / PCM. The codec can send the left and right channels through the aforementioned protocols, but the library integrated in the kernel reads only the left channel (mono), or copying it to the right channel (dual mono).
The device under testing was taken through the Telit distributor (LE910C1 device). The kernel is limited in permissions, we cannot load any additional libraries or modify existing ones. We opened a ticket with Telit, who informed us that it is impossible to make the change as the kernel is managed by Qualcomm.
I would like to understand if this limitation (purely software) can be solved through the SDK, or if there is already a kernel version that supports I2S / PCM communication in stereo. Thanks for any information / help you can give us.
Best Regards