基于网口传输的LED同步屏控制系统及其FPGA实现

Implementation of LED synchronous display control system and its FPGA based on Ethernet port transmission

介绍一种以FPGA为核心,基于网口传输的全彩高灰度同步LED显示屏控制系统的设计方法。该设计改变传统设计中低效高成本的信号采集和传送方式,改用实时采集DVI接口显示信号、通过网口传输数据,采用高集成度FPGA和大容量SDRAM,采用信号包复用技术同步传送显示数据和控制数据及高效率的灰度切片算法等新技术,具有成本低、显示面积大、显示稳定、刷新率高等特点。

The paper presents a design method which is based on Ethemet port transmission of high gray-scale full-color LED display control system of synchronous with FPGA-core.The design changes the traditional inefficient and high-cost design in signal acquisition and transmission with using a real-time acquisition of DVI display signals and transferring data through the Ethernet port.The design uses a highly integrated FPGA and high-capacity SDRAM ,multiplexing of signal package to transfer display data and control data,and efficient algorithm for gray-scale slice as well.h has the features of low cost,large display area,stable display,and high refresh rate.