Device and method for debugging embedded system

A device for debugging an embedded system, comprising:

• a host system including:
• a user interface for managing an interface with a user;
• a debugging engine for outputting information necessary for debugging when the user selects a target system to be debugged through the user interface, and for outputting a debugging process result through the user interface to the user;
• and
• a JTAG (joint test action group) command generator for receiving an information necessary for debugging from the debugging engine and generating a corresponding debugging command, and for receiving a debugging result to the debugging engine;
• a JTAG signal generator for receiving the debugging command from the JTAG command generator of the host system and generating a corresponding JTAG signal, and for transmitting the debugging process result to the JTAG command generator of the host system;
• and
• a target system including:
• a TAP (test access port) for decoding the JTAG signal inputted from the JTAG signal generator and outputting a decoded debugging command, and for outputting the debugging process result to the JTAG signal generator;
• and
• a microprocessor for receiving the decoded debugging command through the TAP controller and applying the decoded debugging command to the microprocessor and a memory to thereby execute a necessary information and a debugging command, and outputting a result to the TAP controller.