Design of Digital Responder Based on The Mono-chip of AT89C51
Abstract: The paper designs a new, digital and intelligent responder. The chip of AT89C51 is adopted as the core control chip in this system, the responder is completed by adopting the method of the combination of hardware and software. In the system, the design of hardware uses the concept of modular and divides the system into following parts: the core control module, the power modules, display module, alarm module, key input module, clock and reset module. The software design is realized by programming the assembly language. Based on the analysis of the system working principle, suitable component parameters and models have been selected, the design of intelligent digital responder is realized by adopting the PROTEL and the program. The responder has the function of timing, alarm, display, control of illicit answer, making up the defects of old-style responders.
Key words: Microcomputer AT89C51; Responder; Module
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