摘要
由于不同的单片机提供的片内外资源不同,所以在进行人机交互设计的键盘扩展和图形及字符显示时其硬件电路也有所不同。以C8051F020单片机和OCM320240K图形点阵液晶显示器为例,介绍矩阵键盘采用中断扫描的工作方式实现数字键和功能键的输入。
As different single chip computer provides different source,therefore when the keyboard expands its hardware and display graph and character,the electric circuit has different.Taking micro-controller C8051F020 and liquid-crystal display OCM320240K as an example,it introduces the input equipment of keyboard and the explicit method of graph and character.
出处
《工业控制计算机》
2007年第8期67-68,共2页
Industrial Control Computer
