I2S output noise

[john.liu]

 I use Nrf52832 and sdk16.0.Use I2S play sound.

This sound file comes from https://github.com/NordicPlayground/nRF52-teensy-sgtl5000-audio/tree/master/Convert%20Audio%20Sample

Question 1:

I have subcontracted transmit.But But it's all noise.

I setting :

MCKFREQ=I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV63

RATIO=I2S_CONFIG_RATIO_RATIO_32X

SWIDTH=I2S_CONFIG_SWIDTH_SWIDTH_16BIT

CHANNELS=I2S_CONFIG_CHANNELS_CHANNELS_LEFT

Question 2:

I want setting EVENTS_TXPTRUPD interrupt.What should I do?I didn't find the interrupt  interface.

Please help me analyze the source code.thank you.

i2s.rar

[john.liu]

There are some bugs in subcontracting, so I'll update it.But the sound is not right. I find EVENTS_TXPTRUPD interrupt.

7701.sdk_config.h

0647.main.c

[Edvin]

Hello,

I see that the github repo that you link to is a very specific project using a specific module to play sound. Are you using that exact HW? Perhaps your I2S device doesn't have the same settings. Can you please let me know what sound device you are using?

When you say that the sound is not right. Does it resemble the sound it is supposed to make, or is it just noise?

Best regards,

Edvin

[john.liu]

car_sample_full.c

Thank you!

 It just noise,Use Nrf52832 I2S + AMP(NS4168). I juet use github car_sample_full.c.Maybe I didn't configure it right.I don't have a better idea.

[Edvin]

Do you use the Teensy SGTL5000?