摘要
采用大规模可编程逻辑阵列器件EPM7128以及发光二极管灯HLMP2X50实现键盘编码以及状态显示电路。键盘编码显示电路与主控电路间的通信通过CAN总线实现。所设计的键盘编码显示电路使用外围器件少,简单可靠,显示亮度均匀。
The key encoder and display circuit are designed using CPLD EPM7128 and LED light bars HLMP2X50 series.This circuit can communicate with main control circuit through CAN bus.The circuit need few devices, and it is simple, reliable and brightness uniform.
出处
《国外电子元器件》
2007年第11期20-23,共4页
International Electronic Elements
