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共阴极数码管编码
- 在嵌入式开发过程中有用到数码管的情况,数码管需要显示某些数值,对应的IO口有一个十六进制数值。可以省去查表的时间。(Embedded development process in the use of digital tube, digital tube needs to display some values, the corresponding IO port has a sixteen binary number. The time of checking the table can be