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介绍一种在ARM处理器与LBWA18HEPZ-135 WiFi模块间利用SDIO方式实现电纸书WiFi接口的方法。在阐述嵌入式体系结构与系统开发流程的基础上,介绍WiFi模块,给出硬件接口并简要分析其设备驱动与电纸书应用程序的处理流程,重点对WiFi设备的驱动(包括模块初始化、数据传输与应用模块移植)以及网络应用模块的调试方法进行阐述。测试结果表明,该方法成功实现了电纸书SDIO方式的WiFi通信接口。
This paper introduces a method to realize the electronic paper WiFi interface using SDIO between ARM processor and LBWA18HEPZ-135 WiFi module. Based on the embedded architecture and system development process, this paper introduces the WiFi module, gives the hardware interface and briefly analyzes the processing flow of its device driver and electronic paper application. The focus is on the WiFi device driver (including module initialization, data Transmission and application module migration) and network application module debugging methods are described. The test results show that this method successfully implements the SDIO mode WiFi communication interface.