英文翻译-基于单片机的le点阵显示屏的设计英文翻译-基于单片机的led点阵显示屏的设计英文翻译-基于单片机的led点阵显示屏的设计英文翻译-基于单片机的led点阵显示屏的设计.doc

原 文 题目：LED dot matrix screen design based on MCU As a popular display device component, LED dot-matrix display board consists of several independent LED (Light Emitting Diode). The LED dot-matrix display board can display the number or sign, and it is usually used to show time, speed, the state of system etc. This paper introduces a kind of simple 16ｘ32 LED display screen design process based on STC89C52 single chip minicomputer . The detail hardware scheme, software flow and C language programmer design and so on is followed. The display part can be cascaded to meet the need. The practice proves the design is low-cost and effective. First of all know of LED dot matrix, the so-called of LED dot matrix is LED to more array in a way device, can be divided into monochrome, double-color, three kinds of color. According to the arrangement of polarity LED into type of Yin and Yang type two kinds. According to the matrix each line or each column contains the number of different LED, and can be divided into 5 x7, 8 x 8, 16 × 16 type etc. One of the LEDs pin regular connection, divided into type of Yin and Yang of type 8 x8 LED array. Usually the control including glyph LED control (display what characters) and a control (what a display). In the static display mode, each a display of the form the line is independent, respectively, received a eight I/O mouth, the word a line also connected to another I/O mouth. When want to display a character, make corresponding LED light can. Now a lot of billboards would do this. This kind of low cost and easy to implement. Dynamic display of use of or more extensive, dynamic display is a a turn LED light, in every time only a display in the work (light), but because of the human eye for a visual effect and leds extinguishing rays, will appear more characters and showing that the phenomenon. That in every moment, all LED to show the same characters will, to each show the different characters, they must use scanning methods in turn