What a Pain In The USB-utt

[Cobra_Phil]

I am definitely feeling the USB pain. I have spent the past 4 days scouring this site and the rest of the world for a working PBP example code of a HID USB Keyboard.
I have tried literally dozens of variations on keyboard descriptor files.
The PBP usb mouse demo works just fine. But all other files pertaining to keyboards, both on this site, other sites, and ones that I have pieced together do not work.
I have tried the file from this post http://www.picbasic.co.uk/forum/showthread.php?t=2872 a dozen different ways with no luck.
Usually one of three things happen:
1. The computer locks up and needs rebooted.
2. The computer indicates an unknown USB device is connected.
3. The computer does not recognize a new USB device at all.

Does somebody, anybody have a working demo? Even if it is only a single keystroke.
You might just keep me from committing suicide.

[Ioannis]

I know it is a long thread, but I think it might save you

http://www.picbasic.co.uk/forum/showthread.php?t=5418

Ioannis

[Cobra_Phil]

Thanks Ioannis for the post. I have read through most of the thread. Descriptor files very so much from device to device and there is the old way of doing USB and the new way of doing USB it is hard to determine where the actual problem is located. I will keep looking.

[towlerg]

If you find a working example would appreciate if you post.

George

[Ioannis]

You can download the zip file from the link I posted. It contains a fully working example on 4550 chip and a Visual Basic application (executable and source code) for the PC side.

Have you checked this?

Ioannis

[Cobra_Phil]

Ioannis,
I have downloaded the code and examined it. The problem is every descriptor file is different. Even ones that state they are for HID USB Keyboards are different. Finding one the compiles without errors and works as a keyboard is the problem. The benefit of emulating a true HID USB Keyboard is there is no need for special drivers on the PC side, or the Linux side for that matter.

George,
I will definitely post a solution when I find it. More than one person on this forum has expressed their aggravation with trying to get this to work.
http://www.picbasic.co.uk/forum/showthread.php?t=19333