Quote Originally Posted by Darrel Taylor View Post
Interesting, I got the same error with your's. Except I had to change it to _FC_MEM

After further review I see the P18F4550.inc file in my "MPASM Suite" folder shows these configs for CONFIG1H

Is yours different?

If you want more info on the ASM handling of the USB_INT, I can elaborate some.
<br>
Just checked mine for grins...
I've got FCMEM in my 4550.INC file

Also checked the file straight from the .zip file from Microchip, it's the same.