The Embedded Platform Design On Through-The-Earth Communication

Now ore disaster happens occasionally.Through the earthcommunication platform's building is very important for relief communication. This article we study how to build the stable,low-power consumption platform.Selecting S3C2410 as processor,uda1341 as sound circuit, K9F1208 as the storage circuit. LM1117-33 as the power circuit,build the hardware platform. According to our system's requirement, selectingμCLinux as the OS. The kernel is cutted and ported to processor S3C2410. U-boot,busybox andμClibc are also builded.Our system uses the JFFS2.According to the JFFS2's weakness,When the storage's volume is big,booting time is big too. This article we improve the mounting algorithm so that the system not only boots well but also has a quick mounting time.Sound driver is designed for our system.When we design the program,the oss is selected as our system's architecture program. According to the system's instantaneity and efficiency of memory, the DMA mode are selected as transmission method. According to our system rate's requirements, the driver layer use the G.723.1and realize the audio data compress and uncompress function.Appliation program are designed for our system.We also test the driver program through the appliation program.We study how to debug our kernel by using skyeye.