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《Tianjin Science & Technology》 2018-10
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Design of 16×16 Dot Matrix Module Controller Based on FPGA

QIAO Guangxin;LI Yajun;LI Song;YANG Bin;YU Baokun;College of Electronic Information and Automation,Tianjin University of Science & Technology;  
74 HC138 and 74 HC595 were used to drive dot matrix row and column respectively to reduce the occupation of the chip IO port. Programming was implemented using VHDL language to control the dot matrix display via FPGA chip.This paper introduces hardware connection of the 16×16 dot matrix module,and analyzes the timing of the 74 HC595 and storage and transfer of dot matrix column data. A VHDL program design method for dot matrix row and column controller was proposed to implement new data loading,the strobe dot matrix row,16-bit data serial output according to the low first and then high,the generation of 74 HC595 clock signal and output latch signal. The dot matrix module is connected to the Basys2 development board,and the program is downloaded to the FPGA.A 16×16 dot matrix display is implemented,which verifies the correctness of the design. The design has practical application value.
【Fund】: 天津科技大学大学生实验室创新基金(No.1702A203);; 全国高校实验室工作研究会学术研究计划(No.SY2015Z059)
【CateGory Index】: TN791
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