Introduction to the Sitara Linux SDK In this

Introduction to the Sitara Linux SDK In this session we will review the various components of the Sitara Linux Software Development Kit (SDK) including the out-of-box application launcher, example applications, SDK installer, setup scripts, Code Composer Studio and other host tools including Pin. Mux Utility and Flash Tool. July 2012

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Agenda • Sitara SDK Roadmap • What is a Software Development Kit (SDK)? • Sitara Linux SDK Objectives • Sitara Linux SDK Overview • SDK Development Process • Current SDK Features • Downloading the SDK • Documentation • SDK Target Components • Installing the SDK • SDK Target Development Tools • SDK Host Tools • Driving Mainline 3

What is an SDK? • Definitions and solutions vary, but we think an SDK should be…. • More than just a board support package (BSP) or a Demo – An SDK should also contain tools for developing on TI parts – Pre-built libraries that customer applications can link against without requiring building their own – Documentation • Provide a known good starting point for product development – Start with the SDK reference distributions – Add and remove packages as needed 4

Sitara Linux SDK objectives • The purpose of the Texas Instruments Sitara Linux SDK is to provide customers with a unique out-of-box experience and a quick path to their application development. • The Sitara Linux SDK accomplishes this by providing – – Example applications for key, high touch IP and peripherals Tools for cross development and environment configuration Host tools for device configuration Documentation of SDK components • Out-of-box in < 10 minutes and Development in < 1 hour • A unified look and feel scaling across all Sitara devices from ARM 9 to Cortex-A 8 and beyond 5

Sitara Linux SDK overview • Board Support Package (BSP) – Linux Kernel, Bootloaders & File System • Documentation – Quick Start Guide & SW Developer’s Guide • Matrix Application Launcher – – GUI based on PHP and HTML 5 Touchscreen, Mouse & Keyboard, Web Browser • Example Applications – ARM Benchmarks, Power, Multimedia, Camera, Cryptography, WLAN/Bluetooth, Profiling, 3 D Graphics • SDK Installer – Easy installation of all target and host software components and documentation • CCSv 5 – – Linux aware debug Preconfigured projects for example applications • Host Tools – Flash Tool, Pin. Mux Utility 6

Sitara Linux SDK overview - Continued Matrix Application Launcher ARM Benchmarks USB Profiler 3 D Graphics Power Manager System Information Web Browser WLAN GUI Qt Embedded QGLWidget QWidget Gstreamer/FFMPEG Wifi Blue. Z MPEG 4, H. 264, MPEG 2, AAC, … Open. GL ES FBDEV ALSA DSS 2 I 2 C USB Mc. SPI Touch screen Ethernet Mc. BSP MMC/SD UART

SDK agile development process Daily Meeting • Items completed yesterday? • Plans for today? • Issues? Nightly Build & Test • Daily build using OE • Daily tests on dedicated systems using testlink Daily Release Planning Meeting • Review Release Cycle Backlog • Estimate Release Cycle Backlog • Commit to 1 -2 weeks SDK Release Cycles with Prioritized Requirements Nightly Build & Test 2 weeks Release Review Meeting • Demo release to BU • Retrospective on the Release Cycle Alpha Beta 1 Beta 2 RC RC Cycle Requirements SDK Release Increments Beta 2 Beta 1 Alpha 8

SDK release cycles T 0 + 2 wks T 0 + 4 wks Alpha + 2 wks T 0 + 6 wks Beta 1 + 2 wks T 0 + 7 wks Beta 2 + 1 wk T 0 + 8 wks RC + 1 wk T 0 + 9 wks Sys. Test + 1 wk Time = 0 Alpha (Proto 1) Beta 1 (Proto 2) Beta 2 (Proto 3) Release Candidate (RC) System Test Re. Integration PSP recipe received Cycle Start Review MRD Cycle Start Review Alpha results Cycle Start Review Beta 1 results Cycle Start Review Beta 2 results EVMs in hand Complete SDK Req’s Cycle Start Push RC to System Test for validation Integration patches pushed to Arago mainline Add new features and component updates No new features Resolve Critical issues only Occurs after the SDK release. Increment SDK version Kickoff Nightly Builds Cycle End Build review Base SDK Requirements Fulfilled Final recipes submitted by start of 2 nd wk Cycle End Build review Beta 1 Cycle Requirements Fulfilled Cycle End Build review Bug fixes and patches only Stop Nightly Build Remove/hide components if necessary Create Integration branch Release Note other issues Sign off from Comp Owners Cycle End Build review RC Cycle Req’s Fulfilled Cycle End Release RC to ti. com & board vendors Legal, OSRB & GTC approvals Sign off from BU Beta 2 Cycle Req’s Fulfilled Cycle End Push integration patches back to Arago mainline 9

Nightly automation overview Open Source Mainlines Arago and Open. Embedded Next Branches Master Branches sdit-build 01 Target Tests Arago Nightly Build Host Content Build Release Open. Test Publish Build and Test Results to Arago Site Target Content Build Productize Build Next Branches neo Open. Test Target Tests Host Tests SDK Nightly Build 10

SDK automation flow - Nightly CCSv 5 & other Proprietary SW Kernel & FS Components Front End Build Server Back End Build Server Arago baseline distro SDK Installers Release Web Server Push Board Vendor SD Card Contents • SD Card contents Open. Test Target Tests • Webgen contents Host Tests TI. com software-dl & contents 11

Obtaining the SDK • The Sitara SDK is provided on an SD card in the box with the EVM – NOTE: Some boards like the Beagle. Board and Beagle. Bone may come without the SDK SD card in the box • Often you will want to download the latest SDK from ti. com to get updates. • There is now a central location for finding all Sitara Linux SDKs at http: //www. ti. com/tool/linuxezsdk-sitara 12

Obtaining the SDK - Continued • Each SDK page contains not only the single SDK installer, but also has many individual SDK components pulled out for smaller and quicker downloads Single Installer Individual Components 13

Documentation - Quick Start Guide 14

Documentation - Software developer’s guide • This guide is a wiki based document hosted externally at http: //processors. wiki. ti. com/index. php/Sitara_Linux_Software_Develop er%E 2%80%99 s_Guide – Wiki based for instant updates & access – Step by Step details – How to start development using this SDK • Links to additional documentation such as – Component User’s Guides – PSP release notes – Host system configuration instructions • Also provided online and within the SDK as a pdf document 15

Sitara Linux training • There is considerable Linux training material available to our customers as well when using the Sitara Linux SDK. • Within the Software Developer’s Guide there is a Sitara Linux Training link that provides both the lecture and lab content • All content is licensed under Creative Commons Share. Alike (CC BY-SA v 3. 0) • Example training sessions include: – – – Hands On with Sitara Linux SDK (lecture/lab) Linux Qt GUI Development (lecture/labs) Optimizing Linux Boot Time U-Boot & Linux Kernel Board Port (lecture/labs) And many more… 16

SDK target components - Matrix Supports: All Platforms • Matrix is the out-of-box experience application contained within the SDK and is launched automatically when the development board is booted • Matrix is a PHP application running on an instance of the lighttpd web server on the target device and serving up HTML 5 content • The display is a simple Qt application using webkit to render the HTML being generated • Because Matrix is a web application it can also be controlled from remote by connecting to the target board with a modern web browser – This provides interaction with the running Linux system even on boards without video display capabilities 17

Matrix - Continued • Matrix can be used to launch applications on the target system • The content displayed within the Matrix screen is dynamically created by parsing. desktop files contained within the file system. • Applications bring their own description data making additional functionality and demos as easy as installing the application • Where possible the. desktop fields are based on the standard specified by freedesktop. – The rest of the. desktop fields as well as additional information on Matrix can be found at http: //processors. wiki. ti. com/index. php/Matrix_Users_Guide 18

SDK target components - Power Supports: AM 37 x, Beagleboard-x. M • Located in the “Power” submenu of matrix • The power submenu has applications that show: – How to transition between different CPU frequencies – Suspend and resume of the device • The options available can vary based on the capabilities of the device • User’s Guide available at http: //processors. wiki. ti. com/index. php/Power_Management_Users_Gui de 19

SDK target components - Multi. Media Supports: AM 335 x, AM 37 x, Beagleboard-x. M • Located in the “Multimedia” submenu • Based on Gstreamer media framework – Allows building dynamic pipelines that describe the data input, transformation operations, and output. – Pipelines are flexible and behaviour can be changed based on adjusting the elements in the pipeline • All media components are open source and provided without licensing restrictions • For Sitara devices with a Neon coprocessor (Cortex devices) – The ffmpeg Neon codecs are used to accelerate video decode operations • User’s Guide available at http: //processors. wiki. ti. com/index. php/ARM_Multimedia_Users_Guide 20

SDK Target Components - Camera Supports: AM 37 x • Launched with the “Camera Loopback” button • For devices with a camera input this application demonstrates how to take data from the media controller interface and output to the display. • User’s Guide available at http: //processors. wiki. ti. com/index. php/Camera_Users_Guide 21

SDK Target Components - Cryptography Supports: All Platforms • Located in the “Cryptos” submenu • Uses the Open. SSL open source package to demonstrate a variety of cryptographic operations and performance metrics. • On devices with cryptography accelerators the cryptodev API is available to allow Open. SSL to take advantage of hardware acceleration. – This operation is seamless to the user and will occur automatically if the hardware is available • Cryptographic software has TSU exemption filed and the software is hosted at http: //software-dl. ti. com/dsps_public_sw/am_bu/crypto/latest/index_FDS. html • User’s Guide available at http: //processors. wiki. ti. com/index. php/Cryptography_Users_Guide 22

SDK Target Components - WLAN/BT Supports: AM 335 x, AM 37 x, AM 180 x • WLAN located in the “Wi-Fi” submenu – The applications demonstrate configuring the device in: • Soft. AP mode - the device acts as an access point • WPA - connect to an existing network – Wi. Fi Direct - enables peer-to-peer connections between a group of up to 8 devices – Uses the wpa-supplicant open source software stack – Wpa-supplicant software has TSU exemption filed and the software is hosted at http: //softwaredl. ti. com/dsps_public_sw/am_bu/crypto/latest/index_FDS. html • BT application is launched using the “Bluetooth” button – This application shows using the device to: • Connect a bluetooth HID device such as a bluetooth keyboard • Connect a bluetooth audio device to stream audio data – Qt based GUI for configuring bluetooth and scanning for devices – Uses the bluez open source software stack • Information about additional command line demos can be found at http: //processors. wiki. ti. com/index. php/Open_Source_Wireless_Connectivity_WLAN_and _Bluetooth_demos 23

SDK Target Components - 3 D Supports: AM 335 x, Beaglebone, AM 35 x, AM 37 x, Beagleboard-x. M • Located in the “ 3 D” submenu • The applications demonstrate the use of the SGX graphics accelerator on devices with an SGX for 3 D operations • The driver and application sources as well as the SGX libraries are provided in the Sitara SDK as part of the graphics SDK which is packaged within it. – This SDK is produced by the graphics team from the Graphics DDK from Imagination • Supports – Open. GL ES 1. 1 – Open. GL ES 2. 0 – Open. VG 24

SDK Target Components - ARM Benchmarks Supports: All Platforms • Located in the “ARM” submenu • The following benchmars are provided – Dhrystone - Measures relative CPU cycles for comparison with other processors run from L 1 cache – Linpack - Measures CPU speed for single-precission floating point operations – Whetstone - Measures CPU speed for double-precission floating point operations – Lmbenchmarks • • Communication bandwidth - measure bandwidth between processes Communication latency - measure latency for various control messages DDR bandwidth - measure memory bandwidth Memory latency - measure memory latency 25

SDK Target Components - Profiling Supports: All Platforms • Located in the “Profiling” submenu • The applications in this demonstrate how to use the open source Oprofile application to: – Generate different reports from assembly level to long detailed reports – Allows profiling two different applications to demonstrate how Oprofile can be used • An application where one thread waits on another in a busy wait loop. This shows the CPU utilization of the busy wait • An application where one thread waits on another and is notified using a signal. This shows the low CPU utilization that signals can provide. 26

Installing the SDK • The Sitara Linux SDK is delivered as a single installer – NOTE: The Sitara Linux SDK will also provide the option to install CCSv 5 if the CCSv 5 installer in found in the local directory. When installing from the SD card the CCSv 5 installer is already placed in the local directory • The Sitara Linux SDK installation has been streamlined to make installation quick and easy. The customer only needs to select: – The installation location – Whether or not to install CCSv 5 if present • The installer also notifies the user of important information such as – The default recommended environment – Notice of GPLv 3 content within the SDK and information on how to remove it – The location of the setup scripts within the SDK for additional configuration • The installer has been designed such that “root” permission is not required to install and evaluate the SDK. 27

SDK Target Development Tools • These are the tools provided on the host to enable developing for the Sitara device. • These tools are components of the SDK that are installed on the host that are: – Run on the target – Build code to run on the target – Directly configure the target • They include – – – Cross Compiler Cross Libraries Board Support Packages Top-level Makefiles Setup Scripts 28

SDK Target Development Tools - Cross Compiler • The Sitara SDK contains its own GCC 4. 5. 3 based ARM cross-compiler – This eliminates the need for a separate toolchain download and removes the need for the customer to provide a toolchain location • This toolchain is optimized for the processor family the SDK is targetting: – Previous Code. Sourcery toolchains were made generic to ARM so that they could support both ARM 9 and Cortex-A 8 devices. – This meant that libraries that could take advantage of the Neon coprocessor such as libm were not utilizing the Cortex-A 8 to its full potential – The toolchain included with the SDK for Cortex-A 8 devices has been optimized for Cortex devices and uses the Neon coprocessor • The cross compiler is located in the linux-devkit/bin directory of the SDK • This cross compiler is also paired with a gdbserver installed on the reference file system to allow for source code debugging 29

SDK Target Development Tools - Cross Libraries • The Sitara SDK ships with many open source libraries already cross compiled and ready for linking • The libraries are located in the linux-devkit directory of the SDK • There is a script in the linux-devkit directory of the SDK called “environment-setup”. Sourcing this script will configure your development environment for cross compiling by performing actions such as: – Setting standard compile variables such as CC for the cross compiler – Adding the cross compiler to the PATH – Setting the PKG_CONFIG and other autotools settings to the cross libraries – Configuring the Qt variables • Sourcing the environment setup file will prepare the host system for target development • Users can identify if the environment-setup script has been sources because their prompt will change to say “linuxdevkit” 30

SDK Target Development Tools - Board Support Package • At the top-level of the SDK there is a directory called “board-support”. This directory contains the components required to port to your custom hardware. • This includes: – The Linux kernel sources – The bootloader sources • In most cases the u-boot SPL is used in place of x-loader, which has been deprecated. – Driver source for out-of-tree drivers • The contents of this directory are usually pieces of the SDK that will require modification/configuration/rebuilding when porting to a new hardware platform • You will also find pre-built kernel and bootloader images in a “prebuilt-images” directory that can be used to boot the TI EVM 31

SDK Target Development Tools - Top-level Makefile • At the top-level of the SDK there is a Makefile and a Rules. make file. These files can be used to build the SDK components as well as to import useful settings. • Rules. make - Provides settings used by component Makefiles for building the components. These include setting for the cross compiler and machine being built. • Makefile - This Makefile contains targets to build, install, and clean most of the components of the SDK such as the board-support packages and the example applications 32

SDK Target Development Tools - Setup Scripts • At the top-level of the Sitara SDK there is a script called setup. sh. This script should be run with “root” permission and will assist in configuring the development host and EVM. • The general flow is to – Install required host side packages such as tftp server and nfs server – Prompt the user for how they would like to configure the EVM • • TFTP kernel + NFS file system SD kernel + NFS file system TFTP kernel + SD file system SD kernel + SD file system – Setup the TFTP and NFS images if selected – Send the configuration to the EVM 33

SDK Host Tools • These tools are intended to run on the host and assist with the configuration of Sitara devices • These tools differ from the SDK Target Development tools in that they are not performing cross-compilation or contain code meant to run directly on the target • Most of these tools can be found in the “host-tools” directory of the SDK 34

SDK Host Tools - Pinmux • This tool allows users to select the peripherals and interfaces they intend to use and identifies pin conflicts if any • Each platform has a default configuration file to serve as a starting point • The output of the tool is a sample header file that can be used as a reference to configure the u-bootloader for the user’s configuration • The user’s guide can be found at http: //processors. wiki. ti. com/index. ph p/Pin_Mux_Utility_for_ARM_MPU_Pr ocessors 35

SDK Host Tools - Flash Tool • This tool was created to assist customers with flashing a board that has no existing bootloaders flashed. – This could be because the bootloaders were erased, or in production where clean memory devices are installed which do not have any software loaded yet. • The flash tool has the following features: – Open source & scalable – Supports additional NAND types through configuration files – Support ECC & ONFI – Supports UART & USB protocols – Developed in Qt 36

CCSv 5 • The Sitara SDK also comes with CCSv 5 available as: – Download for web updates – On the 3 rd partition of the in-the-box SD card • CCSv 5 provides the following features – – Eclipse based Runs on Linux for debugging Linux Multi-core debug Run-Mode Linux debug support • Remote GDB debug • Debug Linux applications and kernel – Stop-Mode Linux support • Control target using JTAG • Enables examination of target and current Linux process • Requires installation of emulator package • In addition to the standard CCSv 5 package the Sitara SDK also adds the following plugins – Remote System Explorer 37

Driving Mainline What is it? • The ability to provide our customers a stable release from the community with an incremental patch set Scope • Mainline applies to all 3 primary components of our Linux solution – – – Uboot Linux kernel Filesystem denx. de kernel. org Open. Embedded/Yocto • Each has its own *mainline* consisting of well documented development flows, release schedules, git trees & maintainers Benefits • Insanely easy, “just works” Linux solutions • Easy board port to customer’s platforms • Continued support of Existing Devices • New Device development is incremental • Bandwidth to focus on more middleware/applications • Potential to enable Reference Designs 38

For more Sitara Boot Camp sessions visit: www. ti. com/sitarabootcamp THANK YOU! 39