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mirror of git://projects.qi-hardware.com/ben-wpan.git synced 2024-12-23 13:06:51 +02:00
ben-wpan/atusb/fw
Werner Almesberger 12fef1b196 atusb/fw/: disable INT0 if manipulating GPIOs (tentative)
Since GPIO manipulations may cause stray INT0 activity, we turn off
INT0 handing on ATUSB_GPIO. The MCU must be reset to restore access
to INT0.

There are still issues to resolve with the GPIO test. It may turn
out that there's a less invasive solution than just turning off
INT0 completely.

- board_app.c (gpio): mask INT0 before manipulating GPIOs
- board_app.c (board_app_init): make it clearer that EIMSK is a bit
  mask
2011-06-20 20:50:22 -03:00
..
an moved atusb/fw3/ to atusb/fw/ 2011-02-22 00:24:07 -03:00
include atusb/fw/: new mechanism for SPI commands (more general than reg/buf requests) 2011-06-19 15:50:49 -03:00
usb atusb/fw/usb/: added support for bulk IN EP 1 2011-06-20 14:34:08 -03:00
atusb.c atusb/fw/: added reporting of RF interrupts via bulk EP1 2011-06-20 15:49:33 -03:00
board_app.c atusb/fw/: disable INT0 if manipulating GPIOs (tentative) 2011-06-20 20:50:22 -03:00
board.c atusb/fw/: moved timer initialization to board_app.c as well 2011-06-11 01:52:16 -03:00
board.h atusb/fw/: added reporting of RF interrupts via bulk EP1 2011-06-20 15:49:33 -03:00
boot.c atusb/fw/boot.c: adjusted the delay loop and don't race with dfu-util 2011-06-11 14:26:52 -03:00
descr.c atusb/fw/: added reporting of RF interrupts via bulk EP1 2011-06-20 15:49:33 -03:00
ep0.c atusb/fw/ep0.c (my_setup): fixed test for ATUSB_SPI_READ2 2011-06-20 13:43:17 -03:00
flash.c atusb/fw: introduced function flash_end_write to properly finish flashing 2011-03-11 17:56:41 -03:00
Makefile atusb/fw/: added transition from runtime to DFU mode according to DFU spec 2011-06-10 23:26:36 -03:00
README atusb/fw/README: boot loader flashing time was a bit too optimistic (15 -> 30 s) 2011-05-09 23:44:51 -03:00
sernum.c atusb/fw: use the unique serial number of the ATmega8/16/32U2 for iSerialNumber 2011-05-10 17:23:08 -03:00
sernum.h atusb/fw: use the unique serial number of the ATmega8/16/32U2 for iSerialNumber 2011-05-10 17:23:08 -03:00
spi.c atusb/fw/: added "lazy enabling" of UART-SPI after ATUSB_GPIO 2011-06-09 14:02:26 -03:00
spi.h atusb/fw/: added "lazy enabling" of UART-SPI after ATUSB_GPIO 2011-06-09 14:02:26 -03:00
version.h moved atusb/fw3/ to atusb/fw/ 2011-02-22 00:24:07 -03:00

Requires a very recent toolchain, because ATmega32U2 is relatively new.

- Building:

  make

- Uploading the firmware to a Ben (for flashing with the atusb-pgm cable):

  make HOST=<hostname> upload

  Example:

  make HOST=ben upload

  HOST defaults to "jlime".

- Flashing the boot loader:

  Prerequisite: avrdude on the Ben.

  Disconnect the atusb board from USB. Insert the atusb-pgm connector into
  the Ben. Place the atusb-pgm adapter on the exposed contact pads of the
  atusb board and push it down. Then run

  make prog

  This takes about 30 seconds. If the programming fails with an error
  message like "Yikes!  Invalid device signature.", verify that the
  atusb-pgm board is properly connected and placed, then try again.

- Uploading the application:

  Prerequisite: dfu-util installed on the PC.

  Insert atusb into the PC, then run

  make dfu

  Note: since the boot loader resets the USB bus after timing out,
  this operation can fail with a message like "No DFU capable USB device
  found". Just retry, and it will eventually get through.

--------------------------

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