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- 通过仿真软件Protues,实现1632点阵的汉字显示控制,行扫描用74HC154,用4个74HC595级联送数据,附有源程序及仿真电路。-The simulation software Protues, to achieve the 1632 dot matrix display control characters, line scan with a 74HC154, 74HC595 with four cascaded to send data, with source code and