使用Matlab读取和写入VGA 15针端口数据 [英] VGA 15 pin port data read and write using Matlab

问题描述

我正在使用带有Windows 7 Ultimate(32位OS)的compaq presario cq40笔记本电脑.我想使用Matlab(最好使用数据采集工具箱)访问15针VGA端口.我需要额外的驱动程序还是应该从Mathworks.com下载任何内容?

I am using compaq presario cq40 laptop with windows seven ultimate(32-bit OS). I would like to access the 15 pin VGA port using Matlab (preferrably using the Data Acquisition Toolbox). Do I require extra drivers or should download anything from Mathworks.com ??

我已经开发了一个程序，该程序使用DAQ工具箱中的digitalio()函数通过并行端口(LPT1)发送数字信号.我打算以相同的方式使用VGA 15针端口(因为笔记本电脑没有并行端口).

I have already developed a program for sending digital signal through parallel port (LPT1) using digitalio() function in DAQ toolbox. I intend to use the VGA 15 pin port the same way (since there is no parallel port for the laptop).

谢谢.

推荐答案

无法访问VGA端口上的各个引脚.

It is not possible to access the individual pins on a VGA port.

问题在于图形卡完全将其抽象化(非泄漏)，因此即使在内核级别也无法解决.

The problem is that the graphics card completely abstracts it away(non-leakyish) so there is no way of working around it, not even at the kernel level.

尽管如此，我还是不建议将VGA端口用作数据端口.

I would not recommend using the VGA port as a data port anyway though.

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