I need help for my first make usb lcd for lcdsmartie

xbox1 · Post by **xbox1** » October 8th, 2008, 4:29 pm

I use this : http://forums.bit-tech.net/showthread.php?t=115461 project.

but i checked again again...

Now i connect use usb to pc

windows xp is display "Unknow usb devic"...

Where I can check again ???

Thanks

Post by **caesar** » October 8th, 2008, 5:17 pm

If crystal and fuses set in PIC are not matched then Windows will report "Unknown device".

The most important thing for USB PIC projects is the Crystal/Oscillator and the fuses set in the PIC.

(as per ch242 project requirements)
Make sure you've used the same crystal and that the fuses are set like this:

xbox1 · Post by **xbox1** » October 8th, 2008, 7:19 pm

I used programer is not same with this

Can you tell me , this picture(setting) is what kinds programer ?

I used QL_PROG chinese version ...

xbox1 · Post by **xbox1** » October 8th, 2008, 7:28 pm

I found a english version , can you help me how to setting it ?

I don't konw how to upload my setting screen picture ///

Iska · Post by **Iska** » October 8th, 2008, 8:47 pm

printscreen-button -> Paste into a image-editor -> save the image -> go to www.imageshack.us and upload your image

xbox1 · Post by **xbox1** » October 8th, 2008, 9:49 pm

Sorry , I CAN'T OPEN THAT URL

Is there have any DIY programmer for my 18f2550 ?

Maybe I will change a programmer ...

I use myself programmer try try try...nothing happend...

xbox1 · Post by **xbox1** » October 8th, 2008, 10:24 pm

Ohh.. I can upload now....

How to setting it ???

Thanks

Post by **caesar** » October 9th, 2008, 12:51 am

What crystal do you use? I need this info to tell you the correct settings.