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Wed, 20 Apr 2005 21:46:30 +1000
I want to replace the Mega169 currently in use in a product with the
Mega329. Atmel had said (through their Australian agents) that the '329
is a direct replacement. After plugging one in I found the pin change
interrupt I use on PE2 was not working. After much searching I found a
small note on page 47 of the '329 manual saying the PCINT2 was not
implemented on the '329. This was duly reported to Atmel that it really
was not a plug-in replacement for the '169. Their reply was I should
specify the '329 to the compiler (rather than the '169), and give them a
call when I had tried this.
Problem is, avr-gcc doesn't support or include an iom329.h file yet, and
even if it did, I can't see how this would compensate for the missing
Maybe I'm missing something here. Has anyone else had this problem? If
the team is looking at supporting the '329 with avr-gcc, could they have
a look at this apparent discrepancy?