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电脑钥匙具有操作票浏览、执行、回传、语音提示、锁码检测和掉电数据记忆保护等功能,能实现各种闭锁装置的开锁及检测。本文以AT89C51RC系列单片机为硬件开发平台,论述电脑钥匙的工作原理并给出相应的外围接口电路。
Computer keys with the operation of ticket browsing, execution, return, voice prompts, lock code detection and power-down data memory protection and other functions, enabling a variety of locking device unlock and detection. In this paper, AT89C51RC series MCU hardware development platform, discusses the working principle of computer keys and gives the corresponding peripheral interface circuit.