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本文介绍一种能把计算机与示波器相连接的图形显示适配器。其原理如图1所示。它由接口、存贮器、地址扫描器和D/A转换器等部分组成。下面简述其工作原理。 欲显示的图形或曲线,通过运算,把它们分解成x和Y坐标。用计算机的输出命令,分别把这些点的坐标送到适配器上x和Y坐标存贮器里,然后,循环地址扫描器,对x和Y存贮器同时进行周期性扫
This article describes a graphical display adapter that connects a computer to an oscilloscope. The principle shown in Figure 1. It consists of interface, memory, address scanner and D / A converter and other components. The following briefly describes its working principle. To show the graphics or curves, through the operation, they are broken down into x and y coordinates. Using computer output commands, the coordinates of these points are sent to the x- and y-coordinate memories on the adapter, respectively, and then the address scanner is cycled to periodically scan the x and y memories simultaneously