garethconner
- 20th December 2007, 23:56
Hi all,
Today was my first day taking a crack at testing an 18F4550 as a USB device. My first attempt was to get the PICBasic Mouse demo application working, but so far no luck.
The only oscillator I have lying about is 6MHz, so I was trying to run the chip as a low-speed device. However, when I plug in the USB cable Windows throws a message stating that the 'Device is not recognized'.
I read through the USB.txt file and changed a single line in the MOUSEDESC.ASM file (commented out the hi-speed line and uncommented the low-speed line). But perhaps I'm missing some other configuration settings? Or is this more likely a wiring issue?
Thanks for any pointers.
Best,
Gareth
Today was my first day taking a crack at testing an 18F4550 as a USB device. My first attempt was to get the PICBasic Mouse demo application working, but so far no luck.
The only oscillator I have lying about is 6MHz, so I was trying to run the chip as a low-speed device. However, when I plug in the USB cable Windows throws a message stating that the 'Device is not recognized'.
I read through the USB.txt file and changed a single line in the MOUSEDESC.ASM file (commented out the hi-speed line and uncommented the low-speed line). But perhaps I'm missing some other configuration settings? Or is this more likely a wiring issue?
Thanks for any pointers.
Best,
Gareth