The Design of Rolling Bearing Testing for some Missile Control System Based on C8051F021

C8051F021 is a fully integrated mixed-signal System-on-a-Chip MCU. It is applied to rolling bearing testing, and portable rolling bearing testing machine is realized. Performance and integrated level of the system are improved greatly for C8051F021 application. The hardware structure of the system is discussed in this paper, and the key codes of information acquire is also given.