2011-02-18 14:53:48 +02:00
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Requires very recent toolchain, because ATmega32U2 is relatively new.
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Building:
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make
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make upload prog
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--------------------------
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Making the toolchain:
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# patches according to
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# http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=789527
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# some gcc prerequisites
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apt-get remove avr-libc gcc-avr binutils-avr
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apt-get install libmpfr-dev libmpc-dev
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# binutils
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wget http://ftp.gnu.org/gnu/binutils/binutils-2.21.tar.bz2
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tar xfj binutils-2.21.tar.bz2
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cd binutils-2.21
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./configure --target=avr --disable-nls
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make
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make install
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# gcc
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wget http://ftpmirror.gnu.org/gcc/gcc-4.5.2/gcc-4.5.2.tar.bz2
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wget -O gcc_452_avr.patch http://gcc.gnu.org/bugzilla/attachment.cgi?id=23050
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tar xfj gcc-4.5.2.tar.bz2
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cd gcc-4.5.2
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patch -p1 -s <../gcc_452_avr.patch
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mkdir obj-avr
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cd obj-avr
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../configure --target=avr --enable-languages=c \
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--disable-nls --disable-libssp --with-dwarf2
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make
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make install
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2011-03-09 06:36:18 +02:00
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wget http://download.savannah.gnu.org/releases/avr-libc/avr-libc-1.7.1.tar.bz2
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tar xfj avr-libc-1.7.1.tar.bz2
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cd avr-libc-1.7.1
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2011-02-18 14:53:48 +02:00
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./bootstrap # the automake at the end takes a while
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./configure --build=`./config.guess` --host=avr
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make
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make install
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