BC127 analog to digital interface

IoT Modules WiFi and Bluetooth Modules
1

Hello,

I would like to test the ANALOG to DIGITAL (bidirectional) interface.
I use two BC127 evaluation board with latest software (Melody 7.2).

The test setup is as follow :
Device A = Mobile phone -> jack Analog input -> Digital output (i2s)
Device B = Digital input (i2s) -> Analog output -> headphones (jack)

I configured the devices as follow :

Device A
SET AUDIO=0 1
SET AUDIO_DIGITAL=0 44100 64 100A00 OFF (Device A is Master ?)
ROUTE 2 (Digital interface to analog interface (bidirectional))

Device B
SET AUDIO=1 0
SET AUDIO_DIGITAL=0 44100 64 100200 OFF (Device B is Slave ?)
either ROUTE 3 (Digital input to analog output) or ROUTE 2 doesn’t give any output sound in the headphones.

Could you please check if my setup is correct and advise for the right parameters.

Thanks a lot,
Eric

2

Update : Solved.

Eric

3

Another question regarding ROUTE 2 usage.
I am not able to control music volume using VOLUME command.

Can you advice the right way to control music level ?

Cheers,
Eric

4

Any help on this please ?