SDK目录结构

.
+-- bootloader
|   +-- boot_ram	//Second Bootloader
+-- examples		//Different types of Demos
|   +-- ble
|   +-- mesh
|   +-- peripheral
|   +-- prop_24g
|   +-- utility
+-- module			//Software Components
+-- peripheral		//On-chip Peripheral Drivers
|   +-- api
|   +-- inc
|   +-- src
+-- rtos			//RTOS Source code
|   +-- freertos
+-- soc				//Platform-Dependent Code
|   +-- arm_cm
|   |   +-- cmsis
|   |   +-- le501x
+-- tools			//Tools enabling firmware build/test/run