Design of Schematic Mapping System Based on I2C and USB Bus

In this paper, a design method of schematic mapping system based on inter-integrated circuit (I2C) bus and universal serial bus (USB) is introduced. The test principle which is adept by the system and the hardware design structure of the schematic mapping system are explained. Then this paper details hardware design structures of control-circuit, test-circuit and flexible needle bed. At the last, the system software structure and design are analyzed.