Small-spacing LED full-color synchronous screen receiving board and working method thereof

Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of digital multimedia broadcasting, and in particular relates to a small-pitch LED full-color synchronous screen receiving board and a working method thereof. Background technique [0002] Single-chip microcomputer refers to the integration of circuit chips. Relying on huge-scale integrated circuits, functions such as CPU, RAM and ROM are integrated on silicon chips to complete the construction of small computer systems. At present, the single-chip microcomputer has been applied in many fields. The single-chip microcomputer is relatively convenient to use, the overall volume is small, the requirements for the surrounding environment are relatively simple, and the control ability is strong. It can integrate various functions and give the technology a strong control effect. The processing speed of the single-chip microcomputer is fast, its own processing function is powerful, and the reliability of the single...

AI Technical Summary

Problems solved by technology

For the LED display control technology based on the embedded system, although the LED display control system implemented by the embedded control technology has improved screen display resolution and flexible control, the display content needs to be stored in the memory in advance. , there is a certain gap in the requirements for real-time display, and the cost is high, so it is not suitable for real-time display

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