1 SILICA I The Engineers of Distribution 1 Joe Bungo ARM mbed Hello World 2 SILICA I The Engineers of Distribution 2 Agenda ► ARM Overview ● Who is ARM? ► mbed ● Introduction to mbed ● Lab 1 mbed registration and hello world demo ● Lab 2 Rapid prototyping: Creating a file system What you’ll need: ● http://mbed.org/handbook/Windows-serial-configuration (download driver and run installer if you have Windows) ● http://mbed.org/handbook/Terminals (download any terminal application if you do not already have one installed) 3 SILICA I The Engineers of Distribution 3 ARM Ltd ARM founded in November 1990 ● Advanced RISC Machines Company headquarters in Cambridge, UK ● Processor design centers in Cambridge, Austin, and Sophia Antipolis ● Sales, support, and engineering offices all over the world Best known for its range of RISC processor cores designs ● Other products – fabric IP, software tools, models, cell libraries - ● to help partners develop and ship ARM-based SoCs ARM does not manufacture silicon More information about ARM and our offices on our web site: www.arm.com 4 SILICA I The Engineers of Distribution 4 ARM Connected Community – 800+ 5 SILICA I The Engineers of Distribution 5 Huge Range of Applications IR Fire Detector Exercise Utility Intelligent Intelligent toys Machines Energy Efficient Appliances Meters Vending Tele-parking Equipment Adopting 32-bit ARM Microcontrollers 6 SILICA I The Engineers of Distribution 6 Huge Opportunity For ARM Technology 35+ 100+ billion accumulated billion after next 7 yrs processors shipped 1998 2013 2020 7 SILICA I The Engineers of Distribution 7 From 1mm3 to 1km3 1mm3 1km3 10¢ $1000 Mobile Home Mobile Computing Server Embedded Consumer Enterprise PC HPC 8 SILICA I The Engineers of Distribution 8 ARM Cortex Advanced Processors ARM Cortex™-A family: ● Applications processors for feature- Cortex-A57 rich OS and 3 rd party applications ...2.5GHz Cortex-A53 Cortex-A15 ARM Cortex-R family: Cortex-A9 ● Embedded processors for real-time Cortex-A8 signal processing, control applications Cortex-A7 Cortex-A5 Cortex-R7 ARM Cortex-M family: Cortex-R5 Cortex-R4 ● Microcontroller-oriented processors Cortex-M4 for MCU, ASSP, and SoC applications Cortex-M3 Cortex-M1 Cortex-M0 SC300 SC000 Cortex-M0+ <12k gates... 9 SILICA I The Engineers of Distribution 9 ARM Cortex family Cortex-A8 Cortex-R4 Cortex-M3 ° Architecture v7A ° Architecture v7R ° Architecture v7M ° MMU ° MPU (optional) ° MPU (optional) ° AXI ° AXI ° AHB Lite & APB ° VFP & NEON support ° Dual Issue 10 SILICA I The Engineers of Distribution 10 Rapid Prototyping for Microcontrollers 11 SILICA I The Engineers of Distribution 11 What’s happening in Microcontrollers? ► Microcontrollers are getting cheap ● 32-bit ARM Cortex-M3 Microcontrollers @ $1 ► Microcontrollers are getting powerful ● Lots of processing, memory, I/O in one package ► Microcontrollers are getting interactive ● Internet connectivity, new sensors and actuators ► Creates new opportunities for microcontrollers 12 SILICA I The Engineers of Distribution 12 Opportunities for Microcontrollers ► Before 1980 computers were used and applied by computer scientists ► now they are: ● Applied across all industries ● Widely used in the home ● Used by almost anybody ► Currently microcontroller technology is mainly applied by the embedded professional ► Microcontrollers interact with “the real world” ● Sensors, actuators and communication, define their application ● Their potential is greater than the home computer 13 SILICA I The Engineers of Distribution 13 Barriers for Microcontrollers ► What prevents microcontrollers from being designed in? ► Conceptually simple things can be hard to prototype ● I want to send an SMS when my cat comes through the cat flap ► Repetition of choices to make: ● Microcontroller ● Tool chain ● Dev board ● Sensors ● It’s not difficult, but can be tedious and time consuming ► Overhead for starting a new project ● Fine for a long complex projects ● A deterrent for quick experiments and tests 14 SILICA I The Engineers of Distribution 14 Rapid Prototyping ► Rapid Prototyping helps industries create new products ● Control, communication and interaction increasingly define products ● Development cycles for microelectronics have not kept pace 3D Moulding 3D Printing 2D/3D Design Web Frameworks 15 SILICA I The Engineers of Distribution 15 mbed Rapid Prototyping Platform ► Complete Hardware, Software and Web 2.0 Solution Dedicated Developer Website Lightweight Online Compiler High-level Peripheral APIs Prototyping Form-Factor 16 SILICA I The Engineers of Distribution 16 mbed.org - Rapid Prototyping for MCUs ► Fastest way to get started with ARM microcontrollers ● Plug ‘n’ Play Hardware, Online Compiler ● Get setup and run “Hello World!” in 60 seconds ● Removes entry barriers to MCU technology ► Focused on rapid prototyping for a diverse audience ● DIP form-factor, High-level APIs, Developer website ● Technology and tradeoffs to enable fast experiments ● Creates new applications for MCU technology ► Launched at ESC Boston in Sept 2009 with live demo ● Internet-enabled “Twittering Billy” read out tweets ● An embedded internet device, prototyped in ½ day ● Over ¼ million video views in first week! 17 SILICA I The Engineers of Distribution 17 mbed SDK C/C++ SDK for ARM Microcontrollers ● High-level APIs and standard environment ● Low level control as needed ● Portable across different ARM silicon vendor MCUs Built on industry standard technology ● ANSI/ISO C/C++ ● CMSIS Compliant ● Compatible with all major professional MCU tools Open Source ● Released under permissive Apache 2.0 license ● Suitable for commercial and non-commercial use ● Managed, maintained and tested by ARM 18 SILICA I The Engineers of Distribution 18 mbed HDK HDK for ARM Microcontroller Boards ● MCU sub-system and debug interface architecture ● Includes on-board USB interface ● Enables standard connection on low-cost boards, starter kits, modules Built on industry standard technology ● USB Device ● CMSIS-DAP Debug Interface Protocol ● Compatible with Windows, Mac, Linux Free for commercial and non-commercial use ● Portable across different ARM silicon vendor MCUs ● Developed, tested and maintained by ARM 19 SILICA I The Engineers of Distribution 19 mbed-enabled Hardware Expanding range of off-the-shelf mbed-enabled hardware ● ARM Cortex-M0, M0+, M3 all represented; M4 TBA ● DIP prototyping modules, Arduino eval board form-factors ● Available through worldwide distribution TBA... $49 $45 $13 Design and production $20 ● All boards implement the mbed HDK ● Hardware is designed and/or made by ARM or 3 rd parties ● mbed HDK enables anyone to build alternate board designs 20 SILICA I The Engineers of Distribution 20 mbed Website ► Dedicated Developer Web Platform ● Custom Web 2.0 tools and environment focused on developers ● Simple route to get started, comprehensive resources and support http://mbed.org 21 SILICA I The Engineers of Distribution 21 mbed Compiler ► Lightweight Online Compiler ● Web 2.0 browser-based IDE with personal workspace “in the cloud” ● Nothing to install or configure, login from anywhere ● Industry leading compilation tools in the back end. It is a real tool 22 SILICA I The Engineers of Distribution 22 mbed Library ► High-level Peripheral APIs ● Trading memory and CPU performance for ease of use ● Abstract software interfaces for controlling microcontroller hardware ● Intuitive peripheral access, encapsulation of implementation details ● Treat hardware and software the same 23 SILICA I The Engineers of Distribution 23 Lab 1 mbed registration and hello world 24 SILICA I The Engineers of Distribution 24 Registration ► mbed microcontroller enumerates as a Mass Storage Device (USB disk) ► double-click the mbed.htm file on the mbed USB disk ► Log in or sign up for a new account ► The mbed microcontroller contains your license to the compiler 25 SILICA I The Engineers of Distribution 25 Getting Started Useful resources linked from the first page, including very clear links to “Hello World” and the Getting Started guide Compiler linked from front page 26 SILICA I The Engineers of Distribution 26 Getting started ► Create or open a project in the Program Workspace ► Develop code in the text editor ► Save and compile ► Compiler outputs ● Errors and warnings ● -or- ● A downloadable binary ► Save to the USB flash disk 27 SILICA I The Engineers of Distribution 27 Getting started ► Once the file has saved to the flash disk, it needs to be programmed into the microcontroller ► Press the button on the mbed module ► Your code will start running! 28 SILICA I The Engineers of Distribution 28 Lab 2 Rapid Prototyping: Data Logging 29 SILICA I The Engineers of Distribution 29 Example : Data Logging Applications often include data logging capabilities, and access to the data often involves custom software and interface cables. This example shows how standard methods and interfaces can be used to display, save and retrieve data from an application ► For the purposes of the experiment, we will be displaying and logging noise from an unconnected ADC ● Touching the pin will influence the noise ● It is a demonstration, imagine it is real data! 30 SILICA I The Engineers of Distribution 30 Example : See the data ► The USB connection to mbed can also be used to provide a serial port ► Windows requires a driver, linux and Mac “just work” ► http://mbed.org/handbook/Windows -serial-configuration ► Standard C functions, printf and scanf ► This example displays 100 samples to a terminal application 31 SILICA I The Engineers