Lab03 - Bare Metal BSP 2013_3_02.pdfVIP

Copyright ? 2013 Avnet Inc. All rights reserved Developing Zynq Software with Xilinx SDK Lab 3 Bare Metal Board Support Package November 2013 Version 02 ZedBoard Lab 3 : 2 Lab 3 Overview One of the many time-saving features that SDK offers is the automatic generation of a board support package (BSP) for application development. This topic describes the bare metal BSP used within SDK. A board support package (BSP) is a collection of libraries and drivers that will form the lowest layer of your application software stack. Your software applications must link against or run on top of a given software platform using the application programming interfaces that it provides. Therefore, before you can create and use software applications in SDK, you must create a board support package. SDK includes the following board support package for application development: ? Standalone A simple, semi-hosted, and single-threaded environment that provides basic features such as standard input/output and access to processor hardware features. Semi-hosting is a mechanism for ARM targets to communicate I/O requests from application code to a host computer running a debugger. This mechanism could be used to enable functions in the C library, such as printf, or to use the screen and keyboard from the host to communicate with the target. “Standalone” is synonymous with “Bare-Metal.” When a board support package is built, the following software components are automatically included into the library: ? Device Drivers for all the PS7 and Xilinx PL peripherals in your design (libxil.a) Other libraries The Standalone BSP can be built with the following libraries from the Xilinx software library collection: ? lwIP - An open source light-weight TCP/IP networking library ? LibXil FATFS – A Xilinx SysAce-based FAT file system ? LibXil Flash – A library that provides read/write/erase/lock/unlock and device speci