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Setting up Eclipse for the Econotag
You will need a working toolchain, OpenOCD, and a verision of GDB targeted for ARM to use Eclipse with the Econotag. The following steps explain how to get these and configure Eclipse to use them.
Get and build the OpenOCD source
git archive --format=tar --remote=git://openocd.git.sourceforge.net/gitroot/openocd/openocd63763345d94b11f106c832c23e8ad730a4485723 > tagged_version.tar
Unpack the tar-ball and:
./bootstrap ./configure --enable-ft2232_libftdi --enable-ep93xx --enable-rlink --enable-maintainer-mode make sudo make install
For more details see the mc1322x OpenOCD setup guide
Get the toolchain
Use the mc1322x toolchain guide to setup the CodeSourcery chain.
Build GDB for an ARM target
From debian testing you can get the gdb-7.1 source. 7.0 should also work.
apt-get source gdb
mkdir build cd build ../gdb-7.1/configure --target=arm-none-eabi --prefix= make
Add gdb to your path. You probably already have the CodeSourcert bin in your path so you could do:
cp gdb/gdb ~/CodeSourcery/Sourcery_G++_Lite/bin/arm-none-eabi-gdb71
Get Eclipse with the CDT plugin
Follow the driections here: http://www.yagarto.de/howto/yagarto2/index.html
Use "Standard GDB Hardware Debugging" and set the
arm-none-eabi-gdb-71 (or to whatever you've named gdb)
Add the proper "Initialisation Commands"
In the Eclipse/CDT debugger settings, add:
monitor soft_reset_halt set *0x80020010 = 0
monitor soft_reset_halt causes GDB to send the soft_reset_halt
command (which performs a software reset, then halts the processor)
through the monitor (OpenOCD).
set *0x80020010 = 0 disables interrupts on the mc13224v. Executing a
soft_reset_halt does not reset CPU state. If were running code
that was using interrupt and you then modified codeto not use that
interrupt, then the CPU would still generate the interrupt but no code
would be in-place to handle it.