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在简要介绍了 PC/AT键码、旋转开关和 EPM71 2 8结构特点的基础上 ,介绍了利用 FPGA实现旋转开关信号到 PC/AT键码转换的设计方法
Based on the brief introduction of PC / AT key code, rotary switch and EPM71 28 structural characteristics, the design method of using FPGA to realize rotary switch signal to PC / AT key code conversion is introduced.