The Open On-Chip Debugger
A binary distribution of OpenOCD
stm8 binutils gdb
USB Resources for Microchip Microcontrollers, libusb and libftdi
A family of Eclipse CDT extensions and tools for GNU ARM development.
Extend GDB Server feature, OS Aware Debugging, Thread Stack Checking
Firmware rebuild and update uC in under 3 seconds
Universal programmer/debugger. Universal embedded software framework.