The Intelligent Heating Controller Software Design Based on NIOS II

In this paper a software design based of NIOS-based water level detection and constant temperature control system is mainly introduced, while the keyboard input, circuit display, and other control circuit design also are completed. In accordance with the design requirements, the design is divided into several functional modules to carry out the various sub-module designs. These mainly include fuzzy control algorithm process, fuzzy query forms, fuzzy control subprogram and keyboard scan subprogram.