BT1036 I2S Connect to TDA1541A is not work.

udom

BT1036 I2S connect to TDA1541A is not work but BT1026 is work which same I2SCFG = 65

FAE_Gavin

udom Hi Udom,

Since the same I2S configuration works on BT1026 but not on BT1036, please first check whether the input mode and related audio configurations are the same on both modules.

For BT1036, please confirm the following settings:

AT+AUXCFG (Input mode)
AT+I2SCFG
AT+VER

Please note that the AUXCFG parameter order for BT1036 is different from some other modules:

0: USB mode
1: Line-in mode
2: SPDIF mode
3: I2S mode

You can also try resetting the BT1036 to factory settings and then reconfigure the I2S parameters before testing again.

If the issue still exists, please provide the complete configuration commands and responses, and we will help check further.

udom

Step by step reply
AT-AUXCFG Fail to check and change value

udom

AT+I2SCFG
Confirm check.

udom

AT+VER

udom

After confirm and test result is not work . No any sound.

udom

Confirm check signal found abnormal the bits clock only 1.51..MHz.
Correct should be 3.072MHz.

FAE_Gavin

udom Hi Udom,

Thanks for your update.

We checked this with our R&D team.

The BT1036 only supports 16-bit I2S and does not support 32-bit I2S. The abnormal bit clock (about 1.5 MHz instead of 3.072 MHz) is caused by the current I2S bit depth configuration.

Please change the I2S configuration to:

AT+I2SCFG=1

Then test again.