SK-AM62B-P1: Sound does not play when running the PLAYBACK sample code

Hi,

I will have it run this tomorrow on my setup and get back to you. 

Best Regards,

Suren

Hi Satoshi-san,

My colleague was able to run the example using CCS and was able to hear the audio.

I tested the example using CCS. It is working fine on AM62x.

Here are the logs -
SYSFW Firmware revision 0xa
SYSFW ABI revision 4.0

INFO: Bootloader_runCpu:176: CPU m4f0-0 is initialized to 400000000 Hz !!!
INFO: Bootloader_runCpu:176: CPU a530-0 is initialized to 1400000000 Hz !!!
INFO: Bootloader_runCpu:176: CPU a530-1 is initialized to 1400000000 Hz !!!
INFO: Bootloader_runCpu:176: CPU a531-0 is initialized to 1400000000 Hz !!!
INFO: Bootloader_runCpu:176: CPU a531-1 is initialized to 1400000000 Hz !!!
INFO: Bootloader_loadSelfCpu:229: CPU r5f0-0 is initialized to 400000000 Hz !!!
INFO: Bootloader_JumpSelfCpu:248: All done, jumping self ...

[MCASP] Audio playback example started.
Enter your response on UART terminal
Stop the demo? (y/n) : 

Best Regards,

Suren

Hi Suren, 

If possible could you show us the picture you tested. I would like to know the speaker and mic connection. 

And are you useing pre-build binary?

Best regards,

Ito

Hi Ito-san,

I have assigned the query to my Colleague (Ritapravo) who is based in India to comment as he tested it.

Best Regards,

Suren

Hi, Suren, 

Thanks for sharing the log.
The exact same log is output in this environment, but there is no sound.

I have used the project “aic31” to check the operation, because the project “aic32” does not exist in the SDK of am62x.
(mcasp_playback_codec_ aic31 _am62x-sk_a53ss0-0_freertos_gcc-aarch64)

Share “Compiler” and “Products” settings.

Best regards,

Satoshi

Hi Satoshi,

Just wanted to confirm if your earphone has a built-in working microphone? 
This example takes input from the microphone and outputs it to the speakers of the earphone.

Regards,
Ritapravo

Hi Ritapravo,

No, it is not.
I understand that sound input/output is only valid if the headset is connected to a 3.5mm jack.

Satoshi Shinohara said:

Connect the headset to the 3.5mm jack.

I have followed the steps below and there is still no sound. 
Is there any cause that you can think of?

Satoshi Shinohara said:

Steps:

In the sample code embedded in the SDK, the callback functions (mcasp_txcb(), mcasp_rxcb()) appear to be defined but not used.
Also, the implementation differs from the usage example.
Example Usage

Regards,
Satoshi

Hi Ritapravo,

Some errors were made in the answers.

Satoshi Shinohara said:

No, it is not.

I use headphones with a built-in microphone.

Regards,
Satoshi

Hi Satoshi,

Satoshi Shinohara said:

In the sample code embedded in the SDK, the callback functions (mcasp_txcb(), mcasp_rxcb()) appear to be defined but not used.

These two functions are Callback functions. After a MCASP transaction is completed, these functions are called. You can put a breakpoint in these functions to see them working. 

Your setup looks correct to me. One thing you can try is to use a different earphone with mic. Other than that things look correct to me.

Regards,
Ritapravo

Hi Ritapravo,

Thanks for the answer.

Ritapravo Sarker said:

You can put a breakpoint in these functions to see them working. 

We have already tried this one.
The log is embedded in the Callback function, but it is not logged output.
We share videos of debugging runs.

Also, I will share the project file I am using, can you please check if there are any differences?
mcasp_playback_codec_aic31.zip

Regards,
Satoshi

Hi Ritapravo,

Thanks for the lecture.
I was able to confirm that it stops at breakpoints.

And, when the audio output was checked again, it was confirmed that the output was normal, although the volume was low.

Thank you for your time.

Refards,
Satoshi