LED點陣顯示器作為一種新興的顯示器件,是由多個獨立的LED發光二極管封裝而成。
本文介紹了基于單片機(89C51) 的一種8×8 LED 漢字顯示屏的設計與制作過程,內容包括 LED 漢字顯示屏的硬件電路、PCB 設計、程序設計與調試等方面,涉及到單片機電子產品設計與制造過程中的各個環節。
以8×8LED點陣顯示器，單片機89C51作控制器，探討簡單的漢字、英文字母和動態圖象顯示技術。
為闡明用單片機控制雙色顯示屏的方法，對LED顯示模塊單元如何進行信號控制及信號傳輸中的驅動問題進行了研究。
討論了單片機控制系統中關鍵的數據發送問題，結果表明采用并行數據輸入、串行數據及同步時鐘輸出的專用電路可大大減少CPU 的輔助時間，提高數據的發送速度。
關鍵詞：LED、驅動電路、單片機
Abstract
LED dot matrix display as a new display is LED by a number of independent light-emitting diode package from.
In this paper, Introduced a simple 8 × 8 LED display based on single-chip microcomputer (89C51) of Chinese characters design and production process, including character LED display hardware, PCB design, programming and debugging, etc., related to a single machine design and manufacture of electronic products in all aspects of the process.
Use 8 × 8LED dot displays, for single-chip controller 89C51 explore simple Chinese characters, English letters and the dynamic image display technology.
To clarify the use of single-chip dual-color display control method, LED display module unit how to signal control and signal transmission in the study of driver issues.
Discussion of the single-chip control system to send the issue of critical data, results show that the parallel data input, serial output data and clock synchronization circuits dedicated to significantly reduce the CPU support time and increase the speed of data sent.
