摘要
首先介绍了16位定点DSP芯片TMS320LF2407的串行外设接口模块SPI及8位串行LED显示驱动器PS7219的功能、特点和工作原理;然后讨论了两者的硬件连接和软件编程;最后说明了串行总线接口相比较并行总线接口的优势。
This paper introduces first the function, characteristics and principle of 16 bit DSP chip TMS320LF2407 and 8-bit serial LED display driver PS7219. Then it discusses their hardware oonnections and software programming. Finally the superiority of serial bus interface compared with parallel bus interface is explained.
出处
《山西电子技术》
2007年第6期15-17,共3页
Shanxi Electronic Technology
