Objective Development Forums

Re: diferent port for D+ and D-

2011-06-21T23:15:44+02:00

As it says on in the rules

please contact us directly through our support form.

http://www.obdev.at/products/vusb/feedback.html

Try to keep it short and to the point.

" Hi, I want to use separate ports for each of my usb pins. " Wound be a great title. Its a lot more clear then whats on this thread... Indicate you posted a forum thread and our advice was to contact the support team.

Statistics: Posted by ulao — Tue Jun 21, 2011 11:15 pm

Re: diferent port for D+ and D-

2011-06-21T20:48:29+02:00

OK. but where can I find contact to Christian???

Statistics: Posted by dzairo — Tue Jun 21, 2011 8:48 pm

Re: diferent port for D+ and D-

2011-06-21T20:09:30+02:00

Contact Christian, he will tell you if its do-able. He does not get on the forums much.

Statistics: Posted by ulao — Tue Jun 21, 2011 8:09 pm

Re: diferent port for D+ and D-

2011-06-21T13:40:05+02:00

OK. Then you should directly contact the developer of V-USB. But as I already wrote I think it won't work, because afaik all the timing is quite on the edge and there's hardly any time for more instructions. But I think no one except the developer himself can say this for sure.

Statistics: Posted by Guest — Tue Jun 21, 2011 1:40 pm

Re: diferent port for D+ and D-

2011-06-21T13:21:07+02:00

I'm look if have free pin on PORT D , no don't have free pin, I have 100pcs board , I can't cut and add new wire.
no , I can use only firmware with this pin D- Port C - 0 and D+ port D - 2 ,
really we need D- and D+ in same port , or just definition is for both pin,
I don't see in to deep of V-USB project what is need and what is variable.

regards

Statistics: Posted by dzairo — Tue Jun 21, 2011 1:21 pm

Re: diferent port for D+ and D-

2011-06-21T12:54:39+02:00

Sorry, I forgot my name in the last post.
2 suggestions, as already written in the last port:
- If you have no 4 or more layer board with signal traces in the inner layers you can take a sharp knife and cut the trace. Been there, done that many many times. The only reason against that would be because you want to stay compatible. But why should you?
- Just add one wire from your D- to a free pin of port D. Then configure the old D- on port C as input and make sure that nothing happens to it inside your software. This has nothing to do with drawing a new board.

dzairo wrote:ehm sorry but ...
I have complete PCB board of my old project , there is no possible to cut wire and change to other.
if I only draw new board , then no problem, but I want use V-USB in existing project where is used AVR-USB project from Igor Cesko .

any suggestion .

regards

Statistics: Posted by Guest — Tue Jun 21, 2011 12:54 pm

Re: diferent port for D+ and D-

2011-06-21T12:32:38+02:00

ehm sorry but ...
I have complete PCB board of my old project , there is no possible to cut wire and change to other.
if I only draw new board , then no problem, but I want use V-USB in existing project where is used AVR-USB project from Igor Cesko .

any suggestion .

regards

Statistics: Posted by dzairo — Tue Jun 21, 2011 12:32 pm

Re: diferent port for D+ and D-

2011-06-21T11:31:44+02:00

Are all other pins of Port D used? If yes you could switch D- with a pin of Port D, if not I absolutely cannot understand what's your problem. Just make a new trace to a pin of Port D (and cut the old one if you like, or leave it if you want to stay compatible).

dzairo wrote:realy I can't use V-USB firmware???

Statistics: Posted by Guest — Tue Jun 21, 2011 11:31 am

Re: diferent port for D+ and D-

2011-06-21T10:21:38+02:00

Hi.
I use board with firmware Igor Cesko, and he make firware full on ASM and use two pin and It does not matter what port pin use only D+ must be connect to INT0 .
Now I want use firmware V-USB and D- is in port C.
realy I can't use V-USB firmware???

regards

Statistics: Posted by dzairo — Tue Jun 21, 2011 10:21 am

Re: diferent port for D+ and D-

2011-06-20T23:01:32+02:00

If Micha is right and you want D- on Port C and D+ on Port D, I dont think that will work. Why do you need to use another port, is it because of your board wiring?

Statistics: Posted by ulao — Mon Jun 20, 2011 11:01 pm