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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。
Using large-scale programmable logic array device EPM7128 and LED lamp HLMP2X50 keyboard encoding and status display circuit. The communication between the keyboard code display circuit and the main control circuit is realized through the CAN bus. The design of the keyboard code display circuit using less peripheral devices, simple and reliable, uniform display brightness.