Abstract: This paper mainly introduces the design of vacuum counter-pressure casting control system which is made up of S3C2440 as the core, describes the systematic principle of its implementation, hardware composition and its corresponding software design. The ladle pressure can be controlled accurately by using the application programs of the system. In the process of casting, the system can display the parameters in real-time and graphically display the casting. What’s more, it will add so many functions, such as network transmission, storage, printing, and so on. The designed system is good for improving human-computer interaction and reliability of casting.

Key words: S3C2440, vacuum counter-pressure casting, human-machine interaction