kl25 usb

[LArmstrong1985]

Hi,

I've downloaded the example for the FRDK-KL25 board on MCUXpresso, but I've some questions about USB.

- Where I can download the USB stack? If I create a new project in MCUXpresso USB isn't present.

- How can I configure the stack to use it with Freertos? I've seen there are some defines, but I cannot try it in the example because the file "usb_osa_freertos.h" are missing.

Thank you very much!

[jingpan]

Hi,

I think you sould not only download example, but also build and download the SDK for FRDK_KL25 on https://mcuxpresso.nxp.com/.

Click SDK Builder, then select FRDM-KL25Z, then click Specify additional Configuration Setting. In Configuration Settings page, there is a menu named Select Optional Middleware.  Please add Freertos and USB stack into SDK.

Then click Go to SDK Builder.

By this way, you will get the Freertos and USB stack you want.

Regards