In the way of combining VHDL with graph, an inputted electronicspeedometer in CPLD is designed.
本文采用VHDL语言和图形输入方式相结合的方法，在CPLD芯片上实现了电子车速里程表。
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In the way of combining VHDL with graph, an inputted electronicspeedometer in CPLD is designed. This device is small in size, stable in function, and can be upgraded and reused.