usb not recognised

General discussions about V-USB, our firmware-only implementation of a low speed USB device on Atmel's AVR microcontrollers
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ojaswini
Posts: 2
Joined: Mon Apr 09, 2012 7:02 pm

usb not recognised

Post by ojaswini » Mon Apr 09, 2012 7:25 pm

I am making the cornell project- mister gloves using atmega 16. I have completed the hardware part and have used the programs from the website and hid keys program from v-usb.My problem is every time i put the usb cable in my laptop (windows 7),an error message pops up saying USB DEVICE is not recognised.
Please help.
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dlf23456
Posts: 5
Joined: Tue Apr 03, 2012 8:18 am

Re: usb not recognised

Post by dlf23456 » Tue Apr 10, 2012 6:53 am

ojaswini wrote:I am making the cornell project- mister gloves using atmega 16. I have completed the hardware part and have used the programs from the website and hid keys program from v-usb.My problem is every time i put the usb cable in my laptop (windows 7),an error message pops up saying USB DEVICE is not recognised.
Please help.


If you used the exactly the same schematic as the project, The fuse bit is the only thing that I can guess.. What did you use for fuse bit setting?
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ojaswini
Posts: 2
Joined: Mon Apr 09, 2012 7:02 pm

Re: usb not recognised

Post by ojaswini » Tue Apr 10, 2012 7:38 am

Yes i have used the exact schematic except, instead of 2 single axis accelerometer I have used a 2 axis accelerometer breakout board and i have used a different transceiver.
The HID Keys program which the website prescribes to use along with the main_usb.c prog is for ATtiny [i guess] and I have used that only.
I have used the default fuse bits only, that is HIGH - 99 LOW - E1.
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xiangrui
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Posts: 30
Joined: Sun Jan 01, 2012 5:19 am

Re: usb not recognised

Post by xiangrui » Tue Apr 10, 2012 3:17 pm

Are those bits for atmega16? You would try something like 0x80 and 0x9f for high and low fuse respectively. -Xiangrui

ojaswini wrote:Yes i have used the exact schematic except, instead of 2 single axis accelerometer I have used a 2 axis accelerometer breakout board and i have used a different transceiver.
The HID Keys program which the website prescribes to use along with the main_usb.c prog is for ATtiny [i guess] and I have used that only.
I have used the default fuse bits only, that is HIGH - 99 LOW - E1.
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Liutazbn

Re: usb not recognised

Post by Liutazbn » Sun Apr 15, 2012 9:25 pm

Hi, two years ago I have made one avr doper (rototron) version, and it works well until now. After about year I can't install it on my winxp. Problem that I have message "The usb device is malfunctioned and windows does not recognize it." I dont know what to do. This programmer woked well, and any changes I didn't.
Maybe anybody knows how I can solve this problem?
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Aviraj
Posts: 1
Joined: Wed Apr 18, 2012 10:41 am

Re: usb not recognised

Post by Aviraj » Wed Apr 18, 2012 10:46 am

Hey there,
Even i have made the same project and facing the same problem... :( Havent got the solution yet. Please post the solution of the problem if u get it...
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