液晶与显示2013，Vol.28Issue(3)：392-397,6.DOI:10.3788/YJYXS20132803.0392
LED大屏幕显示校正系数配置系统
Display Calibration Coefficient Configuration System Used in LED Panel
摘要
Abstract
To effectively write and read the calibration coefficients used in LED panel display control system,a display calibration coefficient configuration system based on USB interface and FPGA was developed.Firstly,the serial flash and its application in LED display systems were introduced.Next,an electrical circuit is built,including a FPGA chip and a USB peripheral controller chip.Finally several programs were developed,including a USB firmware,a PC user program and a configuration program for the FPGA.Experiments show that the calibration coefficients can be correctly written and read with this system.Each sector of the flash can be erased in 0.6 s.The data can be written in 2.3 Mbit/s and read in nearly 30Mbit/s.This system is easy to use,and it can take an important role in the calibration coefficients operation of the LED panel display control system.关键词
串行Flash/LED显示/校正系数/USB/FPGAKey words
serial flash/LED display/calibration coefficients/USB/FPGA分类
信息技术与安全科学引用本文复制引用
宋超,王瑞光,冯英翘..LED大屏幕显示校正系数配置系统[J].液晶与显示,2013,28(3):392-397,6.基金项目
国家科技支撑计划(No.2009BAE73B00) （No.2009BAE73B00）
