现场可编程门阵列( FPGA) 是一种可编程逻辑器件, 它具有丰富的I/O 口及内部资源, 编程和修改极为方便, 并且易于扩展和维护, 简化电子电路的设计。本系统采用Altera 公司的FLEX10K作为核心器件, 结合VHDL程序, 实现了对LED 点阵显示字符的控制。-Field programmable gate array (FPGA) is a programmable logic device, which has a wealth of I/O port and internal resources, programming and modification is very convenient and easy to extend and maintain, simplified the design of electronic circuits. The system uses Altera' s FLEX10K as a core device, combined with VHDL program, realized right LED dot matrix display character control.