topic Re: Accessing the USB driver in Windows to connect to a NXP board ? in Kinetis Microcontrollers

Accessing the USB driver in Windows to connect to a NXP board ?

randyseedle — Tue, 22 Jul 2025 22:36:17 GMT

I want to communicate with my NXP FRDM-K64F through the Windows USB driver. Is there any

documentation on accessing the USB driver in Windows to connect to a NXP board ?

Randy Seedle

Re: Accessing the USB driver in Windows to connect to a NXP board ?

Celeste_Liu — Wed, 23 Jul 2025 03:11:56 GMT

Thanks for your post. Do you mean that your Windows cannot recognize the FRDM-K64F board? Please check the link below to see if it is helpful to you.

Fixing the USB Drivers | MCU on Eclipse

BRs,

Celeste

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Re: Accessing the USB driver in Windows to connect to a NXP board ?

randyseedle — Wed, 23 Jul 2025 09:05:36 GMT

Its not that it is broken. I anticipate working on a USB application that is present in Windows as well as the microcontroller.

At this point I am just hunting or information on the USB environment in both areas (Windows and microcontroller).

Randy

Re: Accessing the USB driver in Windows to connect to a NXP board ?

Celeste_Liu — Thu, 24 Jul 2025 03:28:03 GMT

We don't have such information. Sorry for the inconvenience caused.

Re: Accessing the USB driver in Windows to connect to a NXP board ?

bobpaddock — Thu, 24 Jul 2025 13:15:38 GMT

Look at the TinyUSB project.

https://github.com/hathach/tinyusb

Then Jan Axelson's book "USB Complete" 5th edition (Jan retired after that edition).

How exactly do you want to communicate? HID, Serial, WINUSB? It makes a difference.

I've been using TinyUSB with the KL27 and K32L for HID and looking at moving to WINUSB.

Re: Accessing the USB driver in Windows to connect to a NXP board ?

randyseedle — Fri, 25 Jul 2025 05:22:52 GMT

Bob:

I have a lot of slow speed data acquisition to do. I have wondered about isochronous but bulk might be fast enough. The question is, will I be able to get through all of it without missing some data points. My networking background wants me to segment the data space but wouldn't that all compete for the same space in the root hub ? What about a second USB card (PCI Express) on the workstation ?

I read Jan Axelson's book "USB Complete" 1st edition. It didn't have any examples back then. I hope its gotten better.

Randy Seedle

Re: Accessing the USB driver in Windows to connect to a NXP board ?

bobpaddock — Fri, 25 Jul 2025 12:25:14 GMT

A PCI board would get rid of all of the inherent hub stacking of a typical PC. Going that route doesn't really match 'slow speed' but then 'slow' is subjective.

USB Tree View shows the stacking:

https://www.uwe-sieber.de/usbtreeview_e.html

USBDeView shows connections:

https://www.nirsoft.net/utils/usb_devices_view.html

The example code for HID and WinUSB are here:

http://www.janaxelson.com/hidpage.htm

http://www.janaxelson.com/winusb.htm