Debugging with a JTAG interface

• Two types of JTAG dongles

• Those offering a gdb compatible interface, over a serial port or an Ethernet connexion. Gdb can directly connect to them.
• Those not offering a gdb compatible interface are generally supported by OpenOCD (Open On Chip Debugger)
• OpenOCD is the bridge between the gdb debugging language and the JTAG-dongle specific language
• http://openocd.berlios.de/web/
• See the very complete documentation: http://openocd.berlios.de/doc/
• For each board, you'll need an OpenOCD configuration file (ask your supplier)

• See very useful details on using Eclipse / gcc / gdb / OpenOCD on Windows: http://www2.amontec.com/sdk4arm/ext/jlynch-tutorial-20061124.pdf and http://www.yagarto.de/howto/yagarto2/