porting User-Defined Class USB Device on LPC55S28

_Ferrari_ — Wed, 26 Mar 2025 10:19:50 GMT

Hello everyone,

I'm developing a project based on the LPC55S28 CPU. The project requires a User-Defined Class USB Device. I've read the AN14169 application note and implemented all the suggested changes in the relevant files.

Unfortunately, it's not working (an error occurs when I try to install the driver on my PC), and I'm unsure if:

the code is specifically designed for the i.MX RT chip and is incompatible with the LPC55 family, or
I made a mistake while adapting the changes to my platform (but I checked the changes thoroughly and I believe everything is correct).

For testing, I'm using the LPC55S28-EVK board, and my IDE is MCUXpresso IDE v24.12.148. The SDK version is SDK_2.x_LPCXpresso55S28, version 2.15.000.

Are there any other resources or application notes I can consult? Has anyone encountered similar issues, and if so, how were they resolved?

Zadig software doesn't show Driver

Re: porting User-Defined Class USB Device on LPC55S28

Habib_MS — Thu, 03 Apr 2025 17:34:00 GMT

Hello @_Ferrari_,

The only resource available is the app note you mentioned, however as explained in this post, it is possible.
Also, you can take by reference the SDK examples of USB:

Sorry for the inconvenience this may cause.
BR
Habib

topic Re: porting User-Defined Class USB Device on LPC55S28 in Processor Expert Software

porting User-Defined Class USB Device on LPC55S28

Re: porting User-Defined Class USB Device on LPC55S28