2305179_en-US

Yes

usb host with CODEC(i2S)

hi NXP team.

I am developing a project using LPC5528. lpc5528 I2S RX receives I2S tx signals from an external source and outputs digital signals to usb speakers via USB. This requires a USB HOST+i2s component solution. But I didn't find such a program in the routines. Can you provide me with such a program?

I'm developing a project using LPC5528. The LPC5528 I2S RX receives I2S TX signals from an external device, and outputs digital signals to a USB speaker via USB. This requires a solution using USB HOST + I2S components. However, I couldn't find such a solution in the example code. Could you provide a solution like this?

thanks

LPC55xx

Re: usb host with CODEC(i2S)

Hi @harry3

Thanks for your post,

There is not a solution that accomplishes with the requirements you mentioned, but you could use as reference the examples of host_audio_speaker it has the options of bm or freertos (Included in SDK_25.12.00_LPCXpresso55S28).

Also, there are two examples of I2S one using DMA and the other using interrupts, please refer to these examples.

The final implementation is up to you, feel free to reach out with any questions in the developing process of the solution.

Re: usb host with CODEC(i2S)

Hi @harry3

Please also at the codec path to the MCU Assembler settings

let me know if this solves the issue.

Re: usb host with CODEC(i2S)

Hi Carlos.

I was already doing that when I came out with this question.

I had already done it this way when this problem arose.

thanks

harry

Re: usb host with CODEC(i2S)

Hi @harry3

Thanks for clarifying.

Please also add the folder to Path and Symbols -> Source location to be recognized as a folder with source files:

You could confirm that the change make effect when the folder symbol has a blue C.

Re: usb host with CODEC(i2S)

hi Carlos，

I'm very sorry that I made a mistake with the attachment just now. Please refer to this initial attachment.

thanks

harry

Re: usb host with CODEC(i2S)

hi carlos,

Thank you very much for your support.

I just found the problem of MCLk having no output. I will further develop this project and will continue to consult you if I encounter any problems in the future.

thanks

harry