ABSTRACT
The design is a 16 × 16 dot matrix LED display design. The machine to EP2C5T144C8N
as the main chip, LED dot-matrix electronic display for the control system it dynamic design
and development process. Through the chip to control a line drive 74HC154 and two drive
74HC595 to drive the display shows. The electronic screen can display text or monochrome
images, four 8 x 8 dot matrix LED display module to form a 16x16 dot matrix display mode.
Displays the dynamic display, graphics or text to achieve stationary, moved out of the other
display.
LED dot matrix display hardware design ideas, features and principles of the various parts
of the hardware circuit, the corresponding software programming, and instructions for use,
etc. in detail.
Control system using FPGA Editor, by programming the control point corresponds to the
LED anode and cathode level, can effectively control the display point bright off. Shows the
character of the lattice data can write your own (ie, direct dot drawing) can also be extracted
from the standard font.LED display with its group structure is flexible, showing a stable, low
power consumption, long life, mature technology, low cost and other characteristics of the
station, securities, sports venues, major trunk roads and a variety of indoor / outdoor
occasions, information dissemination, public promotion, environmental parameters in real
time, the major activities of the countdown has been widely used.The design results show that
the system is stable performance, reasonable structure, with horizontal expansion splicing.
Keywords: LED FPGH hardware description language
