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文件名称:bxjkxp8255
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在可编程并行接口芯片8255的PA口或PB口的某一口线上产生连续周期性矩形波。
在可编程并行接口芯片8255的PC口的PC0-PC3上接4个按键作输入,PC4-PC7上接4个发光二极管作输出,编程实现发光二极管正确指示按键的状态。-the programmable parallel interface chip 8255 PA mouth or PB mouth one bite of the online continuous periodic rectangular wave.
in programmable parallel interface chip 8255 PC mouth PC0- PC3 on four key as input, PC4- PC7 on four leds as output, programming instruction implement leds button state.
在可编程并行接口芯片8255的PC口的PC0-PC3上接4个按键作输入,PC4-PC7上接4个发光二极管作输出,编程实现发光二极管正确指示按键的状态。-the programmable parallel interface chip 8255 PA mouth or PB mouth one bite of the online continuous periodic rectangular wave.
in programmable parallel interface chip 8255 PC mouth PC0- PC3 on four key as input, PC4- PC7 on four leds as output, programming instruction implement leds button state.
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