基于单片机的跑马灯课程设计(论文).doc

The smallest system one chip computer is in expands at the base of

MCS-52 one chip computer，make it used more convient in the test

system. This design mainly expands I/O in the take 52 on chip computer,

reset circuit, crystals circuit, the LED display circuitand writes the first

floor procedure.Make for scrolling minimum system.