For a ZYNQ project, we have the following files in the root directory: PROJECT.cache PROJECT.data PROJECT.sdk PROJECT.srcs PROJECT.ppr The .PPR file is the project file of PLANAHEAD. You can double-click it directly under WINDOWS. PROJECT.cache PROJECT.data is a temporary document generated by the project. In PROJECT.srcs we find the PROJECT.srcs\sources_1\edk\system directory. There is a system.xmp file in this directory. This is the name of the project file generated by XPS with the name of the top-level entity SYSTEM. Double-click to open the XPS project. . Under PROJECT.SDK, the structure level is SDK\SDK_Export, which contains the following directories: .METADATA SDKPROJECT SDKPROJECT_BSP HW SYSTEM_HW_PLATFORM Among them, .METADATA is a temporary file, SKDPROJECT_BSP is a BOARD SUPPORT PAKCAGE project, HW and SYSTEM_HW_PLATFORM contain the corresponding hardware initialization code. I want to ask the difference between PS7_init.c/h. SDKPROJECT is the corresponding APPLICATION directory. In this directory, there is no corresponding project file. How to use the SDK to open this project separately? Open SDKà FIELà switch workspaceà and select the working root directory of the corresponding SDK. The so-called SDK root directory is the upper directory containing the folder such as .METADATA. Guangzhou Ehang Electronic Co., Ltd. , https://www.ehangmobile.com