Hi,

We will check your settings and will get back to you as soon as possible.

Best Regards,

  -Diego Meléndez López
   Audio Applications Engineer

Hi,

I modified the register value, and the loudspeaker work well , but the microphone is not working .

Please give me some ideas about the codec.

Registers config :
{ 0x00, 0x29} { 0x01, 0x01} { 0x10, 0x03} { 0x20, 0x10} { 0x21, 0x00}
{ 0x23, 0x0f} { 0x30, 0x11} { 0x31, 0x00} { 0x40, 0x00} { 0x41, 0x00}
{ 0x44, 0x09} { 0x50, 0x27} { 0x54, 0x1b} { 0x55, 0x02} { 0x56, 0x02}
{ 0x15, 0x0c} { 0x16, 0x0f}

Hi,

Where are you expecting to sense the microphone signal? At the Class-D output?
As you can see in the picture below the microphone can only be routed to the ADC and the Class-AB output.

Best regards,
-Ivan Salazar
Audio Applications Engineer - Low Power Audio & Actuators

  Thanks for your reply.

  I want to input signal at microphone, and output digital signal at PORT1_SDO.

If so can we get some sample register config .

Could you please add the following to your command script?:
{ 0x42, 0x00} ADC_L fed to PORT1_L_TX & ADC_L fed to PORT1_R_TX

Best regards,
-Ivan Salazar
Audio Applications Engineer - Low Power Audio & Actuators

Hi Ivan,

I've tried it. It's no use。

I ran PORT1_IN->DAC->ADC->PORT1_OUT and it worked.  

When I enabled the DSP（reg 0x20 =0x90, 0x30=0x91），the routing “PORT1_IN->DAC->Loudspeaker”  doesn't work. And "MIC->ADC->PORT1_OUT" also doesn't work. I suspect it's ALC's problem.

Support for this device is being difficult as there is no evaluation board available for debugging.
I will inspect each register individually and come back to you with more information.

Best regards,
-Ivan Salazar
Audio Applications Engineer - Low Power Audio & Actuators

I noticed that my previous comment was incorrect, it should say:
{ 0x42, 0x05} ADC_L fed to PORT1_L_TX & ADC_L fed to PORT1_R_TX

When you set reg 0x20 =0x90, 0x30=0x91 it doesn't work but when you set reg 0x20 =0x10, 0x30=0x11 it works fine?

Best regards,
-Ivan Salazar
Audio Applications Engineer - Low Power Audio & Actuators

when I set reg 0x42=0x05, the PORT1_OUT has output signal. But I think it's incorrect .I did a test， just set PORT1 and DAC， still have output at PORT1_OUT,and the signal changes with the PORT1_IN. How can I determine the state of ADC, and now I suspect that ADC doesn't work. Is there any corresponding registers?

When I set reg 0x20=0x10,0x30=0x11, just the route "PORT1_IN->DAC->Loudspeak" work fine.

This is schematic：

I just want to use "MIC->ADC->PORT1_OUT" and "PORT1_IN->DAC->LS",  Can you provide sample configuration?

This is our  schematic:

We just use the route "MIC->ADC->PORT1_OUT" and "PORT1_IN->DAC->LS".  It doesn't work , I have no idea at all.  Can you give me some sample config?