單片機(jī)與計(jì)算機(jī)串行通行的設(shè)計(jì)

 摘 要

   本課題是 “虛擬電子實(shí)驗(yàn)環(huán)境建設(shè)及實(shí)驗(yàn)教學(xué)方法的研究”立項(xiàng)的課題。為了便于實(shí)驗(yàn)教學(xué)中原理與應(yīng)用相結(jié)合，避免實(shí)驗(yàn)裝置的分散和重復(fù)，降低實(shí)驗(yàn)成本，我們?cè)O(shè)計(jì)了具有一定通用性的開放式的微機(jī)與單片機(jī)實(shí)驗(yàn)平臺(tái)”，可以很好的滿足微機(jī)化、自動(dòng)化等方面課程實(shí)驗(yàn)的需要，也可在該實(shí)驗(yàn)平臺(tái)上開設(shè)出獨(dú)立的實(shí)驗(yàn)課程和綜合應(yīng)用實(shí)驗(yàn)。在總體功能上，對(duì)該實(shí)驗(yàn)平臺(tái)的控制采用兩種方式：PC 機(jī)控制和單片機(jī)控制。實(shí)驗(yàn)平臺(tái)能夠通過增強(qiáng)型并行接口（EPP，Enhanced Parallel Port）與 PC 機(jī)連接，在 PC 機(jī)上通過匯編語言、C 語言、LabVIEW 或 LabWindows/CVI 虛擬儀器開發(fā)平臺(tái)等，實(shí)現(xiàn)對(duì)實(shí)驗(yàn)平臺(tái)上通用實(shí)驗(yàn)電路的操作；也能夠通過單片機(jī)控制通用實(shí)驗(yàn)電路；另外，為了試驗(yàn)方便，實(shí)驗(yàn)平臺(tái)還包含了一個(gè)單片機(jī)仿真器，在 PC 機(jī)上配備有相應(yīng)的仿真開發(fā)調(diào)試環(huán)境。另外在該實(shí)驗(yàn)平臺(tái)上還配備有 STD總線插槽，可以方便地實(shí)現(xiàn)實(shí)驗(yàn)功能的擴(kuò)充。

關(guān)鍵詞： 實(shí)驗(yàn)平臺(tái)；實(shí)驗(yàn)教學(xué)；微機(jī)接口；單片機(jī)；虛擬儀器；STD 總線,EPP

Abstract

 Based on the practical requirements of electronic experimenting education oncampus, this article brings forward the design and implementation of computer &MCU based experimenting platform developed by ourselves. Experiments can be implemented on this device not only by means of EPP port but also through the embedded simplified MCU emulator. In this article, the principle of each part of the experimenting platform is specially introduced by which this device is built. At present, the experimenting platform of this kind is still not reported to be designed in China.

Keywords: Experimenting Platform; Experimenting Education; Computer ports;EPP (Enhanced Parallel Port); MCU; Virtual Instrumentation; STD bus