'''OpenOCD''' is the Open On-Chip Debugger. It aims to provide debugging, in-system programming and boundary-scan testing for embedded target devices. It has [Jim Tcl] onboard and exposes its functionality as Tcl commands. Configuration, automation, communication and more are done using Tcl. A very versatile tool, it allows (amongst others) ARM devices to be debugged/programmed using [gdb] over USB/JTAG/SWD/... **Links** [http://openocd.sourceforge.net/%|%Homepage]: [http://openocd.sourceforge.net/doc/html/index.html%|%User guide]: [http://openocd.sourceforge.net/doc/doxygen/html/index.html%|%Developers guide]: <> [Category Debugging], [Category Device Control], [Category Hardware], [Category Jim]