mirror of
git://projects.qi-hardware.com/ben-wpan.git
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0db361d49d
We currently don't provide the DFU Functional Descriptor, which modern versions of dfu-util request to determine the transfer size. Luckily, they don't do this if the transfer size is given on the command line. |
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|---|---|---|
| .. | ||
| an | ||
| include | ||
| usb | ||
| atusb.c | ||
| board.c | ||
| board.h | ||
| boot.c | ||
| descr.c | ||
| ep0.c | ||
| flash.c | ||
| Makefile | ||
| README | ||
| spi.c | ||
| spi.h | ||
| version.h | ||
Requires very recent toolchain, because ATmega32U2 is relatively new.
Building:
make
make upload prog
--------------------------
Making the toolchain:
# patches according to
# http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=789527
# some gcc prerequisites
apt-get remove avr-libc gcc-avr binutils-avr
apt-get install libmpfr-dev libmpc-dev
# binutils
wget http://ftp.gnu.org/gnu/binutils/binutils-2.21.tar.bz2
tar xfj binutils-2.21.tar.bz2
cd binutils-2.21
./configure --target=avr --disable-nls
make
make install
# gcc
wget http://ftpmirror.gnu.org/gcc/gcc-4.5.2/gcc-4.5.2.tar.bz2
wget -O gcc_452_avr.patch http://gcc.gnu.org/bugzilla/attachment.cgi?id=23050
tar xfj gcc-4.5.2.tar.bz2
cd gcc-4.5.2
patch -p1 -s <../gcc_452_avr.patch
mkdir obj-avr
cd obj-avr
../configure --target=avr --enable-languages=c \
--disable-nls --disable-libssp --with-dwarf2
make
make install
wget http://download.savannah.gnu.org/releases/avr-libc/avr-libc-1.7.1.tar.bz2
tar xfj avr-libc-1.7.1.tar.bz2
cd avr-libc-1.7.1
./bootstrap # the automake at the end takes a while
./configure --build=`./config.guess` --host=avr
make
make install