串并结合实现大规模LED的实时显示

Realization of Many LEDs Displaying in Real Time Based on Serial and Parallel

介绍了一种利用数据串行和并行结合实现大规模LED实时显示的方法。该方法将所有需要显示的LED分成若干组,计算机对组一级的数据采用并行输出,而对每一组内部的数据则采用串行传输,这样只需要少量的计算机端口就可以控制大量LED的实时显示。工程实践证明,这种方法在保证数据显示的正确性和实时性的前提下,不仅能使硬件电路结构简单,控制方便,降低成本,而且可以借助LabVIEW强大的界面编辑功能,缩短程序开发周期,美化人机界面。

A method that can realize a great deal of LEDs displaying in real time based on serial and parallel conbimed is introduced, in which all the LEDs was distributed in several groups, data were sent to these groups parallel by computer, but data were sented to the LEDs serial in every group, that we can use several computer port to control the displaying of a great deal of LEDs in real time. It has been proved that, by this method those LEDs can display acctually in real time, and the circuit can be simplified, cost can be cutted ,development time also can be cut short and I/O interface can be beautified by the powerful interface editor of LabVIEW.