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RE: [avr-gcc-list] atmega16 vs. atmega32

From: James . Harris
Subject: RE: [avr-gcc-list] atmega16 vs. atmega32
Date: Thu, 5 Aug 2004 14:45:46 +0930

Another (very subtle) difference is the MCUCR used for power management:
The positions of the SE and CM2 bits are swapped between Mega16 and Mega32.

/James Harris

                    "Dave Hansen"                                               
                    <address@hidden>         To:     address@hidden, 
                    Sent by:                   cc:                              
                    avr-gcc-list-bounce        Subject:     RE: [avr-gcc-list] 
atmega16 vs. atmega32                                  
                    05/08/2004 07:31 AM                                         

From: Reza Naima <address@hidden>

>I ran out of flash on the atmega16, and the atmega32 seems identical but
>with more memory.  I just wanted to ask if this was the case.  The pin

We went the other way (existing product used mega32, prototype new product
on mega32,  eventual product uses mega16).

The differences are slight, but they're enough to prevent binary
compatibility.  The biggest difference I remember is that the location (and

thus the priority) of some of the interrupt vectors changed.  So a
will be necessary, but source code should be identical (or nearly so).


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