RT-Thread的SPI总线驱动结构分析 、移植及应用

介绍了串行外设接口SPI的通信原理,对RT Thread操作系统下的SPI总线驱动结构进行了详细的研究与分析.以STM32F407ZG对W25Q64的读写为例,介绍了硬件SPI总线驱动的移植步骤,并详细介绍了SPI应用程序设计及技术实施细节.最后通过实验,对SPI驱动移植及程序设计的可行性及有效性进行验证,实验结果表明,RT Thread操作系统下的SPI总线驱动结构设计合理,移植方便且应用程序设计简单,本文所介绍的移植与应用方法可行有效.

Structure Analysis,Migration and Application of SPI Bus Driver for RT-Thread

In the paper ,the communication principle of SPI and the SPI bus driver structure of the RT -Thread operating system are re-searched and analyzed .Taking the example of STM32F407ZG's read and write operation on W25Q64 ,the transplant procedure of hard-ware SPI bus driver ,the SPI application design and technical implementation are introduced .Finally ,the experiment is carried out to veri-fy the feasibility and effectiveness of driver transplantation and program design of SPI .The experiment results show that the RT-Thread operating system under the SPI bus driver has reasonable structural design ,it is convenient to migration and easy for program design ,the transplantation and application method introduced in the paper is feasible and effective .