This paper studies the LED display control system based on single chip microcomputer. By taking advantage of the fast operation speed and high-speed SPI interface of VRS51L3074, through software optimization and reasonable hardware design, the control of super long LED display is achieved. Combined with the characteristics of multiple I/O ports, VRS51L3074 can not only control super long LED display, but also operate multiple LED unit boards in parallel, thus having the ability to control super long special-shaped LED display. The overall circuit design block diagram is given in this paper, and the key part program is attached.
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