Open Debugger is a set of programming tools in the development of STM series of microcontrollers, TI CC1x, 2x, TI CC3x series SOC, when STC Series MCU can be programmed quickly and easily debug, debugging programmer does not have to do something different series of chips switching plug tedious work. In addition, it also integrates a USB to serial port, which is a common interface for embedded development. It is also one of USB2.0 HUB, making it easy to extend to other USB tools. With it, no longer need to face a bunch of different writer, complicated mess of wiring, USB port deficiencies.
More please read BPI Open debugger burn board gitbook.