This fixes the bug, now the usb communication works like a charm.
Thanks for the quick response.
Greetings!
Search found 4 matches
- Tue Aug 11, 2009 1:00 pm
- Forum: V-USB
- Topic: Possible bug in V-USB
- Replies: 13
- Views: 16936
- Sun Aug 02, 2009 9:11 pm
- Forum: V-USB
- Topic: Possible bug in V-USB
- Replies: 13
- Views: 16936
Re: Possible bug in V-USB
There is definitely a software bug in the 16 MHz asm part of the driver. I just changed to a 12MHz crystal and anything works as it should, no transmission errors. If you have built the UsbAsp - Loader, running at 16Mhz system clock, then you are affected by the bug. To test this you can simply try...
- Sun Aug 02, 2009 11:31 am
- Forum: V-USB
- Topic: Possible bug in V-USB
- Replies: 13
- Views: 16936
Re: Possible bug in V-USB
Has someone tried to reproduce the bug? The only things you need are the files from the link in the previous post and any uC that can run V-Usb. It is very strange that the error only happens with the data payload 0xFE / 0x7E, is it possible that the error is related to the bitstuffing routine in th...
- Fri Jul 31, 2009 4:33 pm
- Forum: V-USB
- Topic: Possible bug in V-USB
- Replies: 13
- Views: 16936
Possible bug in V-USB
Hello V-USB community, i spent a lot of time now, finding an error in my hard- software setup, but as it seems this might really be a bug in the V-USB firmware driver. Under special conditions, I can reproduce an USB transmission error. My Hardware Setup: Atmega128 with 16 MHz crystal oscillator Pow...