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Hacking
The Black Magic Probe consists of both hardware and firmware components. Both are under open-source licenses and available on Github.
- Firmware: https://github.com/blacksphere/blackmagic (GPLv3)
- Hardware: https://github.com/blacksphere/blackmagic-hardware (CC-BY-SA)
The project resides in a GitHub git repository
Clone this repository (or fork and clone) using your desired method. Typically:
git clone https://github.com/blacksphere/blackmagic.git
The project uses libopencm3, which is included as a git submodule. Thus, prior to building the project, one must initialize this submodule:
cd /path/to/blackmagic
git submodule init
git submodule update
To build the firmware for the standard hardware platform run 'make' in the
top-level directory. You will require a GCC cross compiler for ARM Cortex-M3
targets. A good option is gcc-arm-embedded.
The default makefile assumes the target prefix is arm-none-eabi-, but you can override this
on the command line:
make CROSS_COMPILE=arm-cortexm3-eabi-
This will result in binary files:
blackmagic - ELF binary of the Black Magic debug probe.
blackmagic.bin - Flat binary of the Black Magic debug probe, load at 0x8002000.
blackmagic_dfu - ELF binary of the Black Magic DFU bootloader.
blackmagic_dfu.bin - Flat binary of the DFU bootloader, load at 0x8000000.
A number of users have contributed alternative hardware designs that are compatible with the native firmware. Some of these designs are in the hardware repo. Check the README files for details.
There have also been efforts to port the firmware to other hardware platforms, most notably the ST-Link and discovery boards, as these are very cheap and common. See this tutorial.
The Black Magic application can also be compiled as a native PC application which will use an FT2232 device to implement the physical JTAG interface. This is not the intended mode of operation, but is useful for debugging, experimentation, and if you don't have the actual hardware.
Compile the application with the command:
make PROBE_HOST=libftdi
Running the application blackmagic -c <cable> will start a GDB server on TCP port 2000. <cable> is a string identifier for your particular FTDI JTAG cable. See src/platforms/libftdi/platform.c for valid options.