TAS5825M : 0x71 Clock halt - no sound

Short updating information

1) It is first - default configuration                  www.dropbox.com/.../default.ppc3

2) It is second - customer configuration        www.dropbox.com/.../channel-tester.ppc3

Please check it

Hello Dmytro,

Can you upload the files directly to your post. Dropbox links can't be accessed for security reasons.

Best Regards,

Luis

Hello Luis,

Yes, sure.

This is first configuration 

default.zip

and the second configuration

channel-tester.zip

Best Regards,

Dmytro

Hello Dmytro,

Can you provide a waveform capture of the I2S bus in both the case where there is no clock error and the case where you do see the clock error.

Best Regards,

Luis

Hello Luis,

Thanks a lot of your help but during this week we don't opportunity working in our our laboratory. The main reason is COVID 19. I will back to you on the begin next week.

So, maybe we can do some experiments with software part and send you status registers etc ?


Best Regards,

Dmytro Kalynenko

Hello Dmytro,

Is the audio input using USB audio or driven externally via SPDIF/PSIA connections. If driven via USB can you provide your sound settings on windows(e.g. bit depth and sample rate).

Best Regards,

Luis

Hello Luis,

I hope that next week i can send to you a waveform capture of the I2S bus.  About my Windows sound settings: I have not noticed anything strange.

1) This picture show all sound devices.

2 ) This picture show current sample rate. So if we use default.pcc3 setting all work's fine , and when i want to device channel - no sound.

Sample rate: 48000

2 channels , bit depth 16

So, maybe i need to share something else ?

However, I tried to reset all errors , write command "0x78, 0x80" ~ // Reset Errors and after that "0x03, 0x03" // // Set unmute and Play but also nothing happened.

Best Regards,

Dmytro Kalynenko

Hello Luis,

You are right. Thanks for your answer , you are help to solve this problem in debug board and now we have sound.  But if it possible I have additional question about amplifier settings.
The main key that we designed our own board with tas5825m amplifier. Control is via a board with a processor amlogic, arm architecture. We wrote special tas5825m driver for management  though i2c and i2s bus and also like "sound codec" in Linux. We have the same problem with "I2S clock error" and also we are not sure for 100% percent that h file loading correctly because we hear some sound distortion. In Linux we can use special software utility. It is "i2ctools" and it allow us to dump or get value from i2c bus.

1) It is looks like this :

So, but we only have the ability to read 77 registers (status errors, warnings, sound set value, etc.). I think this is a problem with the EG setting and we have an idea to check all these registers, but they are hidden. Do you have any software utilities that allow you to check not only 77 registers, but all.

Hello Matthew Miao,

I am sorry for the delay with the answer, I will try to give an answer for all your questions.

Would you explain please what you mean by "checked through CheckSum"? I think we have great I2C communication because we can read the value of all registers at any time. It is no problem for us. We are thinking that the main problem is with incorrect settings of register values  during the loading process. As I said before we would like some software tool or script which allows us in real time to parse required registers. Our problem is that we can only read register 77 and we don't have access to other registers. As far as i know this means that we can't see if the amplifier EQ setup was correct or not ?

I had already tried to reset all errors and faults. The clock error has disappeared but the sound quality has not changed in any way. We still hear a distorted sound output.

About datasheet 9.5.3 "Control via Software requirements" - yes , I checked all this requirement and we have the same settings as in the datasheet. 

Best Regards,

Dmytro Kalynenko