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by DetlevT
Tue Jun 29, 2010 8:30 am
Forum: V-USB
Topic: v-usb on ATMega168PA
Replies: 3
Views: 1537

Re: v-usb on ATMega168PA

What's your system clock? By default the driver is set to 12Mhz.
by DetlevT
Tue Jun 29, 2010 8:27 am
Forum: V-USB
Topic: ATMEGA328P on V-USB
Replies: 43
Views: 23528

Re: ATMEGA328P on V-USB

From the wiki: The ATmega328p has no non-p variant, but it's binary-compatible with the ATmega168, so compile for the ATmega168. This is a bad idea. The 328p has twice as much RAM as the 168, so the stackpointer will point to the wrong position (RAMEND of the 168) and the usable RAM is reduced by ha...
by DetlevT
Thu Nov 12, 2009 12:41 am
Forum: V-USB
Topic: Atmega8535 OK / Atmega328p FAIL
Replies: 34
Views: 18487

Re: Atmega8535 OK / Atmega328p FAIL

I also had some trouble to get the USBAsploader working on a ATMEGA328p although the code was working on an ATMEGA88 before. I discovered that the cause is a change in the identifier of the INT0 vector. V-USB is using the outdated "SIG_INTERRUPT0" as default in usbdrvasm.S (Line 60) which ...

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