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USB device not recognized (Simple PIC USB IF tutorial)

Posted: Thu Dec 18, 2014 11:29 pm
by MrSparkle
Hello,
Regarding the Simple PIC USB Interface tutorial, I built the hardware according to the provided schematic and was able to load the PIC .hex file, and the LEDs are blinking. When I plug it into a USB port I get the dreaded "USB device not recognized" error. I am running Windows 7 32-bit. Ideas?

Thank you,

Mr Sparkle

Re: USB device not recognized (Simple PIC USB IF tutorial)

Posted: Wed Jan 21, 2015 2:20 am
by ThePyroElectro
MrSparkle wrote:Hello,
Regarding the Simple PIC USB Interface tutorial, I built the hardware according to the provided schematic and was able to load the PIC .hex file, and the LEDs are blinking. When I plug it into a USB port I get the dreaded "USB device not recognized" error. I am running Windows 7 32-bit. Ideas?

Thank you,

Mr Sparkle


Honestly I never tested it out on Win7. I would look at the device drivers and see what the PID comes up as. You can look in the code to see what the PID should be. This will tell you if the USB communication path initializations are even work or if there is a deeper problem.

It might be wise to upgrade to the XC8 or CCS compilers. The C18 compiler + USB stuff is fairly old at this point and no longer supported by microchip. (FYI)

Re: USB device not recognized (Simple PIC USB IF tutorial)

Posted: Wed Jun 10, 2015 7:26 am
by plotino
hello.
i got the same problem as MrSparkle.
What you mean to look to device drivers?

thankx

plot