本文介绍了通用计算机键盘在智能化仪器中的软硬件接口技术,采用该技术可大大增强智能化仪器的输入功能,丰富输入信息量;同时可进一步减小仪器体积,提高仪器可靠性。文章详细描述了通用计算机键盘的工作原理,接口规范,详细分析健盘的扫描码、AT 通信协议和通信时序。给出通用计算机键盘与智能化仪器硬件接口电路和软件应用实例。 This article introduces the common computer keyboard in the intelligent instrument hardware and software interface technology, using this technology can greatly enhance the input function of intelligent instruments, rich input information; the same time can further reduce the size of the instrument and improve instrument reliability. This article describes in detail the working principles of common computer keyboard, interface specifications, a detailed analysis of Jianpan scan code, AT communication protocol and communication timing. Give the general computer keyboard and intelligent instrument hardware interface circuit and software application examples.