需要帮助PIC16F877A使用VGA线 [英] Need a help in PIC16F877A with VGA cable

问题描述

欢迎所有人，



我需要帮助将有关pic16f877a微控制器与CRT或LCD屏幕通过VGA线连接起来。



我只想在屏幕上显示来自图片的彩色文字。



任何帮助都表示赞赏。



THX提前。

解决方案

这真的不会太轻松。

问题是VGA信号是像素和行方向的，而不是基于字符或矢量的。你可以这样做（ http://www.embedds.com/simple-pic-vga-tester/ [ ^ ]就是一个例子）但是坦率地说，我认为您将使用大部分处理能力来维护视频信号并将显示器转换为视频信号格式。



有更简单的方法：你可以得到基于字符或图形的LCD模块，包括一个LCD控制器，可以降低处理器的负载。接口可能更便宜，更快捷！

Welcome all ,

I need a help about interfacing pic16f877a micro-controller with a CRT or LCD screen via VGA cable.

I just want to display only a colored text from the pic on the screen.

any help is appreciated.

thx in advance.

解决方案

That is really not going to be too easy.
The problem is that VGA signals are pixel and row oriented, rather than character or vector based. You can do it (http://www.embedds.com/simple-pic-vga-tester/[^] is an example) but frankly I think you will be using most of your processing capacity just servicing the video signal and converting your display to video signal format.

There are simpler ways: you can get LCD modules that are character or graphics based and include an LCD controller to take the load off your processor. Might be a lot cheaper and quicker to interface!

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