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RE: [avr-libc-dev] [task #3693][task #4102] Add new devices:mega640-1280
Mark E. Scott Jr.
RE: [avr-libc-dev] [task #3693][task #4102] Add new devices:mega640-1280-1281-2560-2561
Tue, 6 Sep 2005 15:43:31 -0500
I wished I were in a position (in terms of proper knowledge) of how to do that
rewrite. Could definitely use it :)
Mark E. Scott, Jr.
512-478-7727 x 122
From: address@hidden [mailto:address@hidden On Behalf Of Björn Haase
Sent: Tuesday, September 06, 2005 11:24 AM
Subject: Re: [avr-libc-dev] [task #3693][task #4102] Add new
Darcy Watkins wrote on Dienstag, 6. September 2005 16:56 :
> Just to let you know. I have just soldered an ATmega2561 to plug into an
> old Kanda STK300 board so I'll be in a position to check out some 256x
> related changes to the tool set.
Unfortunately, I fear that unless you are having an Atmega128 compatibility
switch somewhere in the ATmega256 you might run into severe problems because
the return address of calls now happens to take 3 bytes. Gcc will, e.g. no
longer be able to find the correct location of function parameters that have
been passed on the stack. :-(.
Adding support for the > 128k devices is much more than just adding a new
header file. It's re-writing a small but important fraction of the compiler.
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- RE: [avr-libc-dev] [task #3693][task #4102] Add new devices:mega640-1280-1281-2560-2561,
Mark E. Scott Jr. <=