topic Re: USB enumeration failed in MCUXpresso General

USB enumeration failed

elinaiman — Thu, 30 Jul 2020 12:34:38 GMT

I am using MCUXpresso 11.2.0 and SDK 2.8.0. I imported SDK example "frdmk64f_host_hid_generic_bm" .

When I connect a usb keyboard, I get enumeration failed.

Is this a problem with the usb stack?

Re: USB enumeration failed

danielchen — Fri, 31 Jul 2020 06:52:31 GMT

Hi elinaiman:

This HOST HID example only suppors the HID generic device that runs the device HID generic example in pairs.

Please refer to readme file for more details. This file is under the installation folder.

Regards

Daniel

Re: USB enumeration failed

elinaiman — Fri, 31 Jul 2020 11:39:19 GMT

The same thing happens with "frdmk64f_host_hid_mouse_keyboard_bm"

Re: USB enumeration failed

elinaiman — Fri, 31 Jul 2020 13:47:50 GMT

In the file readme.fdf there is a reference to a PC program that will communicate with the target (k64f) via the generic usb example.

Where can I get this program.

Re: USB enumeration failed

myke_predko — Fri, 31 Jul 2020 14:26:51 GMT

elinaiman‌,

I don't know if that will be helpful - three-four years ago I asked for this program for a product that I had that had a bidirectional HID interface but when I got the application a) it didn't work and I was subsequently told that it only worked with Freescale (at the time) HID interfaces (which never sounded right to me) and b) I couldn't get the source code.

I'm hoping that this isn't the same case as I would like to see the source code for a bi-directional USB HID interface rather than use CDC - although the reason for not wanting to use a CDC (ie it requires a driver in Windows 7) isn't an issue for all modern OSes.

Good luck, please post what you get.

myke

Re: USB enumeration failed

elinaiman — Fri, 31 Jul 2020 17:24:14 GMT

I got the program and connected a usb barcode reader to it. The program recognized the barcode reader but did not display any data that it received when I scanned a barcode. Nevertheless, what we have here is the program being a host and the barcode reader being the device.

What I am interested in is having the K64F be the host. I connected a barcode reader to the K64F and a standard usb keyboard. I used SDK examples such as "frdmk64f_host_hid_generic_bm" and "frdmk64f_host_hid_mouse_keyboard_bm". In all the cases I get enumeration failed.

Am I doing something wrong.