基于FPGA/CPLD的LED/LCD通用顯示譯碼器設計
Design of Commonly Used LED/LCD Display Decoder Based on FPGA/CPLD

摘要:各種數字系統的終端設備都需要對十進制信息進行數碼顯示，而LED和LCD是最常用的顯示器件。在大規模可編程邏輯器件FPGA與CPLD的硬件基礎上，根據顯示譯碼器原理運用VHDL硬件描述語言對LED/LCD的通用七段顯示譯碼器進行了設計，同時使用QUARTUS 1開發軟件對設計電路進行了時序仿真和功能驗證。此設計在大規模數字電路的數碼顯示中更為實用，具有設計簡單、使用靈活和工作可靠等優點。
關鍵詞:譯碼器仿真VHDL描述數字電路脈沖信號
Abstract; Digital display of decimal information is needed for all kinds of terminal equipments of digital systems, and LED and LCD are the most common display devices. On the hardware basis of large-scale programmable logical devices FPGA and CPLD, and by using hardware description language VHDL, the seven-segment display decoder for LED/LCD is designed. In addition, with QUARTUS 11 developing software,the timing simulation and functional verification of the designed circuit are carried out. The design can be used practicaly in digital display of large-scale digital circuits. This device features simple design, flexible and reliable operation.
Keywords;D ecoder Simulation VHDLd escription Digitalc ircuit Pulses ignal