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MAX7219是一个采用3线串行接口的8位共阴极7段LED显示驱动器。本文分析了MAX7219各个寄存器的功能,并结合MAX7219的工作时序,给出了MAX7219在8031单片机系统中的一个应用实例。
The MAX7219 is an 8-bit common cathode 7-segment LED display driver with a 3-wire serial interface. This paper analyzes the functions of the various registers of the MAX7219, combined with the working sequence of the MAX7219, gives an example of the application of the MAX7219 in a 8031 microcontroller system.