The invention discloses a small-spacing LED full-color synchronous screen receiving board and a working method thereof, and the method comprises the steps: designing to-be-processed contents, interfaces and resources of an FPGA and a single-
chip microcomputer according to a
data structure of a
network packet, a to-be-displayed image and an
LED display screen architecture, and obtaining an overall architecture of the FPGA and an overall architecture of a small-spacing LED full-color synchronous screen receiving board
system; receiving a data packet by using a
single chip microcomputer, performing command analysis on a command part of the data packet, and sending a control command through an SPI (Serial
Peripheral Interface)
bus; receiving a control command by using the FPGA overall architecture, and
processing data according to the control command; receiving corresponding image data according to the control command and
processing the image data; performing
image correction on the processed image data; the FPGA is used for controlling an LED
dot matrix scanning
signal, and the HUB75 interface is used for controlling an LED driving
chip to lighten a corresponding pixel. According to the invention, the characteristics of the single-
chip microcomputer and the FPGA are combined, so that the
processing work of data and commands of the sending card can be better completed.