mcu News - Page 52 of 54 - CNX Software

April 24, 2012 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Energy Micro Unveils 2 New Gecko Cortex M3 Starter Kits: EFM32LG-STK3600 and EFM32GG-STK3700

Energy Micro introduced two starter kits (STK) for complex battery-powered products such as portable health and fitness devices and smart accessories: EFM32LG-STK3600 – Based on the EFM32LG990F256 MCU (Cortex M3 ) with 256KB on-chip flash and 32KB RAM. EFM32GG-STK3700 – Based on the EFM32GG990F1024 MCU (Cortex M3 ) with 1MB on-chip Flash and 128KB RAM Both the Leopard Gecko and Giant Gecko MCU can directly control a TFT display and feature a USB driver that supports the Host, Device and On-the-Go (OTG) protocols. The new STKs are also equipped with light, metal and touch sensors which allow designers to work with the LESENSE Low Energy Sensor interface allowing passive sensing of 16 sensors without host CPU intervention. The hardware feature set is completed by a USB plug, 32MB on-board NAND Flash, LCD and a variety of LEDs and push-buttons. The two EFM32 starter kits includes debugging support with a full […]

April 23, 2012August 12, 2012 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Texas Instruments F28069 Piccolo controlSTICK Unboxing and Review

I’ve recently received a TI F28069 Piccolo controlSTICK evaluation kit after winning a game organized by Mouser and Texas Instruments on Facebook. I’ll show what’s the content of this C2000 MCU development kit and play around with the development tools provided. Mouser sent the development tools by Fedex which took 6 days to arrive in Thailand, and the package with the development tools looks like the one below. You’ll find the following in the package: F28069 Piccolo controlSTICK USB Cable 6x Jumpers 2x Cables to connect to external hardware CD with Piccolo F28069 controlSTICK development tools Here’s a closer look to the top of Piccolo controlSTICK, with (left to right) the JTAG emulator chip, C2000 MCU (320F28069PNA) and connector… …and the bottom of Piccolo controlSTICK. Now let’s have a look at the content of the CD: The Drivers directory contains the drivers needed for the controlSTICK development kit (also used […]

April 19, 2012April 19, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Emcraft Open Sources uCLinux and U-boot for Cortex M3 and M4 MCUs

Emcraft Systems has open sourced its ports of U-Boot and uClinux for Cortex-M3 and Cortex-M4 which are available on github at https://github.com/EmcraftSystems. This release supports the following platforms: ST Micro STM32F2 NXP LPC17XX Actel SmartFusion Freescale Kinetis You can check the source code as follows: uCLinux: git clone git://github.com/EmcraftSystems/linux-emcraft.git U-boot: git clone git://github.com/EmcraftSystems/u-boot.git The company has also designed systems on module (SoM) with enough memory to run Linux with Cortex M3/M4 micro-controllers: Freescale Kinetis K70 SOM Actec SmartFusion SOM ST Micro STM32 SOM You might find more details on building/using u-boot or uClinux on EmCraft documentation page (especially linux-cortexm-um-1.4.1.pdf) and you may want to check EmCraft website for details on available hardware and BSP for Cortex M3/M4 solutions. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later […]

April 3, 2012June 18, 2018 by Jean-Luc Aufranc (CNXSoft) - No Comments

Green Hills MULTI 6.0 Compiler Improves ARM MCU Performance by up to 40%

Last week at Design West 2012, Green Hills Software announced it had achieved the highest compiler performance scores ever certified by EEMBC CoreMark and that it outperformed the nearest competing compilers by 35.5% using its MULTI 6.0 – Compiler 2012. Benchmarks were completed on 3 ARM Cortex-M4 microcontrollers: Freescale Kinetis K60 MCU @ 100 Mhz – 35.5% improvement over nearest competitor. Freescale Kinetis K70 MCU @ 120 Mhz – 29.6% improvement over nearest competitor. STMicroelectronics STM32F417IGt6 @ 168 MHz – 34.7% improvement over nearest competitor. Since apparently it’s bad marketing to name competitors in press releases, I went directly to the source (EEMBC Coremark benchmark results) to check out the results and competitors (IAR and Keil) for Kinetis K60 MCU. The first thing you may notice is that there are 2 tests per compiler / MCU combination. That’s because there 2 test configurations: Code in internal Flash – Data in internal […]

March 30, 2012February 1, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

Express Logic Releases ThreadX-Lite RTOS for ARM Cortex-M

Express Logic has unveiled its ThreadX-Lite Real-Time Operating System, a priority-based, preemptive scheduling RTOS for ARM Cortex-M development. It is exclusively be available via IAR Systems and is integrated with the C/C++ compiler and debugger tool suite IAR Embedded Workbench. ThreadX-Lite is “designed to be small, fast, and easy-to-use, while maintaining the functionality and efficiency of a highly optimized RTOS”. ThreadX-Lite targets Cortex-M0, M0+, M3, and M4-based microcontrollers from Atmel, Freescale, Fujitsu, Infineon, NXP, STMicroelectronics, and Texas Instruments. ThreadX-Lite is a subset of ThreadX RTOS, both RTOS share features and capabilities packaged in an object library as well as ThreadX API, but it is not very clear what the differences between the two are from the resources available. Here are the key feature of this RTOS: Small-footprint (small as 2KB, automatic scaling) Fast execution (sub microsecond context switch) Unlimited threads, semaphores, timers, queues, block pools, byte pools, and event flag groups […]

March 28, 2012March 28, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

TI SimpleLink GPS CC4000 Enables GPS For MCUs

Yesterday, Texas Instruments unveiled the SimpleLink GPS CC4000, a GPS self-contained module that can be interfaced with any MCU or MPU having a UART interface. Due to limited resources of microcontrollers, several GPS features have been implemented in hardware such as the push-to-fix function which can simply be controlled by the MCU via a GPIO to receive National Marena Electronics Association (NMEA) strings containing location, time and velocity information. TI Simplelink GPS CC4000 enables GPS-based applications such as asset tracking, industrial M2M, sports and fitness, and precision timing. It can deliver better than 2.5 meter accuracy and provides pulse-per-second output functions to provide precise location and timing data. It can also automatically reuse previously decoded satellite information thanks to its “watchful-eye” feature in order to deliver fast time to first fix (TTFF) and optimize power consumption. Here are SimpleLink GPS CC4000 key features: Driverless, fully integrated GPS solution which requires […]

March 27, 2012March 27, 2012 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Freescale Vybrid Controllers: Cortex A5 + Cortex M4 Solutions

Freescale announced the new Vybrid platform based on Cortex A5 application processor and Cortex-M4 MCU (VF6xx and VF7xx family only) which targets building/home automation and control, industrial automation, point-of-sale systems, medical devices, smart energy equipment, and appliances. There are 5 families of Vybrid Controllers which support the following common features: Video/Camera Interface Unit + optional OpenVG GPU (except VF3xx) Up to 800 MHz data rate DDR3 and LPDDR2 support (except VF3xx) USB 2.0 OTF with Integrated PHY (1 or 2 depending on model) Ethernet 10/100 MAC (1 or 2 depending on model) Display controller (WQVGA to XGA resolutions) High-assurance boot with Crypto Acceleration Up to 1.5 MB on chip SRAM NAND Flash controller and Dual Quad-SPI with eXecute-In-Place(XIP) Dual 12-bit ADC and DAC Here are the 5 families of Vybrid platforms and key differentiating features: VF3xx: ARM Cortex-A5 up to 266 MHz, 1x USB 2.0 OTG, 2x Ethernet, display up […]

March 22, 2012March 23, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Microchip Unveils Wi-Fi Comm Demo Board with 32-bit PIC32 MCU

After TI and Qualcomm, here’s another WiFi solution for MCU aimed at the internet of things (IoT). Yesterday, Microchip Technology announced the Wi-Fi Comm Demo Board, which combines a Microchip 32-bit PIC32 microcontroller (PIC32MX695F512H) with a low-power MRF24WB0MA embedded Wi-Fi radio transceiver module. This small (and cheap) demo board can be used to integrate with existing embedded designs and/or to evaluate Wi-Fi connectivity with a 32-bit MCU. Contrary to TI and Qualcomm, the IP network stack is not implemented in hardware, but Microchip provides a TCP/IP stack that can be freely downloaded at http://www.microchip.com/get/A3VP. This TCP/IP stack includes HTML, DHCP, DNS, IPv4/v6, SSL, etc… (See diagram below) The memory footprint is 28-34 KB depending on the modules used. I could not find details about power consumption, but the company claims their solution can also run with just 2 AAA batteries. Microchip explains that this solution can enable the rapid growth […]