在DE2-70上使用LCD时，刚开始不知道要接电源，后来经过试验，终于知道要怎么设置了，该工程里面就有，希望能给初学者一些帮助。-DE2-70 used on the LCD when it was not known to take power, was tested, and finally know how to set up the project which had hoped to give beginners some help.