EFM32 Embedded Software for the worlds most engineer friendly - PowerPoint PPT Presentation

EFM32 Embedded Software for the world’s most engineer friendly microcontrollers

Why software is important  EFM32 MCUs are designed to save energy, but Your code affects the battery life MCU in Energy Mode 0: 4mA and 1 day battery life MCU in Energy Mode 2: 1uA and 11 years battery life Battery Lifetime 4-Sep-13 2 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Motivation  Access the huge ARM Cortex-M software ecosystem  Compilers  Tools  Debuggers  An active community  RTOS  Filesystems  Drivers  GUI libraries  USB stacks  TCP/IP stacks  ... 4-Sep-13 3 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Simplicity Software 1. Reduces development time  Easy to use APIs  Ready to use examples and templates  Well written documentation 2. Reduces power consumption  Software written with low power consumption in mind  Develop drivers to minimize power consumption  Teach developers how to reduce power consumption 4-Sep-13 4 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Software library overview  Provided free of charge with every EFM32 MCU  Open source, production quality, supported Your code energyAware Drivers / USB Stack / RTOS emlib CMSIS 4-Sep-13 5 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

CMSIS  Cortex Microcontroller Software Interface Standard  Improves software portability and re-usability  Includes  Optimized DSP functions  RTOS abstraction  Register view (IDE integration) 4-Sep-13 6 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

emlib  Low level hardware abstraction  Corresponding hardware and emlib module  Low memory footprint (Flash and RAM)  Can be used with any RTOS  Portable API across the various EFM32 families  Zero Gecko | Tiny Gecko | Gecko | Giant Gecko 4-Sep-13 7 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

energyAware Drivers  Higher level drivers  Goal:  Optimize for power consumption  Speed up customer development  Drivers released to date (May 2013):  GPIO Dispatcher  Non Volatile Memory  Roadmap:  Touch, UART, SPI, I2C, Lesense, ++ 4-Sep-13 8 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

USB stack  Free stack  Full source code available  PC side tools examples available  Includes  Device – base, MSD, HID, CDC, VUD, PHDC  Host – base, MSD, HID, HUB 4-Sep-13 9 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

GUI library  Free stack available – SEGGER emWin  Includes:  emWin Color basic package  emWin GUIDRV Lin  Window manager  Memory device module  Anti-aliasing module  Windows PC tools:  GUI-Builder  Bitmap converter  Simulation environment  Font converter (+Asian languages) Watch the video 4-Sep-13 10 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Class-B self-test library  Prevents unsafe operation of the application  For household appliances that require certification  Pre-certified for  IEC 60335  IEC 60730 4-Sep-13 11 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Bootloader  All EFM32 come with factory installed bootloader  Supports UART on all devices  USB devices support USB CDC from the factory  USB MSD upgrade code is available  Not factory installed 4-Sep-13 12 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Keil Professional RTX RTOS  Ultra low power consumption  Implements the CMSIS RTOS abstraction layer  Open source and freely available  http://www.energymicro.com/news/arm-keil-rtx-real-time-operating-system-offers-tickless-mode 4-Sep-13 13 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

BSP - Board Support Packages  Each development kit comes with full set of demos  Showcase how each component on the kit can be used  Use it as a starting point for your own projects  The license permits cut&paste! 4-Sep-13 14 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Open source projects  FreeRTOS – RTOS  FatFS – file system  LightWeight IP (lwIP) – TCP/IP stack  Speex – audio codec for speech  OpenBLT – bootloader tool 4-Sep-13 15 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Commercial third party offerings  AVIX-RT: AVIX RTOS  CMX: RTOS, file system, TCP/IP  CooCox: CoOS RTOS  Express Logic: ThreadX RTOS  Jungo: USBware and BTware (Bluetooth)  Keil: Flash File System  Micrium: µC/OS-II and µC/OS-III  Micro Digital: SMX RTOS  rt-labs: rt-kernel  SEARAN: dotstack Bluetooth  SEGGER: embOS, emFile, emUSB  STZEDN: Wireless M-Bus Stack  Wicentric: exactLE Bluetooth Smart protocol stack 4-Sep-13 16 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Application Notes  Getting started guides  General EFM32 coding guidlines  Best practice for use of peripherals  Tools setup  Wide range of applications supported  Ethernet  Audio codec  Digital signal processing  Energy harvesting  +++  Reference designs  Capacitive sensing  Display applications  Smart phone audio jack interface  +++  Easily accessible in Simplicity Studio  Full source code  Projects for multiple IDEs/Compilers (IAR, Keil, GCC)  Thorough PDF documentation  Schematics for reference designs 4-Sep-13 17 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Lizard Labs  Online EFM32 training videos with subtitles  PowerPoint files available  Can be used as seminar material  Hands-on exercises in Simplicity Studio  4 levels of detail from introduction to in-depth technical information 4-Sep-13 18 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

µClinux  Latest 3.9 Linux kernel  Requires external SRAM and Flash  Much more than a RTOS – can run «regular» linux applications!  Developed by Pengutronix  http://www.energymicro.com/news/energy-micro- and-pengutronix-demonstrate-the-world-s-most- energy-friendly-linux-for-arm-cortex-m3 4-Sep-13 19 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

Continua Certified Solutions for Connected Health  Partnership with Lamprey Networks  HealthLink PHD  HealthLink Android  HealthLink Cloud 4-Sep-13 20 … the world’s most energy friendly microcontrollers and radios www.energymicro.com

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