摘要
以微处理器S3C2440和嵌入式Linux操作系统组成的嵌入式系统作为主要开发平台,根据SPI通信原理和S3C2440电路接口的特点,设计了一款基于ARM嵌入式系统的SPI驱动程序。讨论了SPI驱动程序的基本开发方法和实现过程,通过编写简单的测试程序进行仿真验证。验证结果表明该驱动程序稳定可靠,可实现嵌入式系统的数据通信。
This paper applied S3C2440 microprocessor and embedded Linux operating system as a development platform, designed an SPI driver based on SPI communication, principle and SPI interface in S3C2440. And the paper mainly described the basic development method and implementation process. The correction of SPI driver was verified by writing simple testing codes. It is proved that the driver is stable and reliable,enabling communication in embedded system.
出处
《微型机与应用》
2011年第5期5-8,共4页
Microcomputer & Its Applications
