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

EFM32 Embedded Software

for the world’s most engineer friendly microcontrollers

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 2

Why software is important

• EFM32 MCUs are designed to save energy, but

Your code affects the battery life

Battery Lifetime MCU in Energy Mode 2: 1uA and 11 years battery life MCU in Energy Mode 0: 4mA and 1 day battery life

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 3

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
• ...

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 4

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 5

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 6

CMSIS

• Cortex Microcontroller Software Interface Standard
• Improves software portability and re-usability
• Includes
• Optimized DSP functions
• RTOS abstraction
• Register view (IDE integration)

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 7

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 8

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, ++

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 9

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 10

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 11

Class-B self-test library

• Prevents unsafe operation
• f the application
• For household appliances

that require certification

• Pre-certified for
• IEC 60335
• IEC 60730

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 12

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 13

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 14

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!

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 15

Open source projects

• FreeRTOS – RTOS
• FatFS – file system
• LightWeight IP (lwIP) – TCP/IP stack
• Speex – audio codec for speech
• OpenBLT – bootloader tool

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 16

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 17

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 18

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 19

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

… the world’s most energy friendly microcontrollers and radios

4-Sep-13

www.energymicro.com 20

Continua Certified Solutions for Connected Health

• Partnership with

Lamprey Networks

• HealthLink PHD
• HealthLink Android
• HealthLink Cloud

www.energymicro.com