Title A LED Display System Control Base On MCU
Abstract
This text clarifies to use a singlechip control monochrome manifestation to
hold of method, show the mold piece how the unit carry on the row or column
signal control and signal to deliver to the LED medium of drove a problem
to research. Discussing a problem of singlechip in a control system how dose
it processing the key data and sending out,result indicate adoption parallel
communication, string data in line and synchronous the clock output's
appropriation electric circuit can reduce CPU assistant time consumedly, the
exaltation data sends out speed.
The LED display dynameic scan can show the way at the same time six 16*16
dot matrix chinese characters, and pc software can modify the content and
effect shows,and so on. IAP used in the application of programmable
technology ,the characters within the code stored in the SCM free program
memory space.so that the system can be enhanced scalability,for a number of
display units of the cascade.
This article from the start LED display principle,elaborated on LED display
dynamic process,as well as hardware circuit design,computing and software
algorithms.
Keywords; LED; Surface Mount Assembilies; Display; Driver; Scan
