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July 25, 2016July 25, 2016 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

OSHCHIP Breadboard Friendly Bluetooth Smart Board Comes in a Tiny 16-pin DIP Package

OSHCHIP is a tiny development board powered by a Nordic Semi ARM Cortex-M0 Bluetooth LE / ANT SoC that neatly fits on a breadboard, and beside wireless connectivity thanks to its 2.4 GHz radio, also provides up to 14 I/Os to interface with external hardware. OSHCHIP specifications: Nordic Semi nRF51822 ARM Cortex-M0 MCU @ 16 MHz with 256KB Flash Memory, 32KB SRAM Radio – 2.4 GHz Radio with support for 4 protocols: Bluetooth Low Energy (BLE) / Bluetooth Smart, Gazell, ESB (Enhanced Shock Burst), and optionally ANT Antenna – Built-in antenna, range is 10 to 20 feet, depending on environment (metal, desks, chairs, …) Expansion – 14 general purpose I/O pins. All peripherals (except the ADC) can use any I/O pin: UART, 10-bit ADC, Counter/Timers, SPI, I2C Security – AES Encryption, Random Number Generator. Misc – Temperature sensor, RTC, Watchdog Timer Quadrature Decoder, 3 LEDs, Power Supply – 1.8V to 3.6V […]

October 9, 2015October 11, 2015 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Weightless Development Kits are Finally Available (Sort of)

The first version of the Weightless standard aiming at lowering cost of IoT communications was published in 2013, but so far development kits were nowhere to be found. Nwave has now launched a Weightless-N SDK using sub-GHz spectrum, but not the white space spectrum used by Weightless-W, probably due to regulatory hurdles. Specifications and features of Nwave development board: MCU – Silicon Labs EFM32G210F128 ARM Cortex M3 MCU @ 32 MHz with 128KB flash, 16KB SRAM Connectivity – RM3 radio module (868MHz) and antenna connector (X3) USB – X1 USB port for connection to PC or UART interface, X2 micro USB port Debugging – UART, and 10-pin JTAG connector (X4) Expansion header – 16 through holes for GND, 3.3V, GPIOs, ADC, Timers output, I2C, etc… (X5) Misc – Three Jumpers for UART and other selections (TBD), reset buttons for USB ports? Power – 5V via USB ? Dimensions – N/A […]

August 7, 2015August 7, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

STM32F746G-DISCO is a $49 Cortex-M7 Board with a 4.3″ LCD Display, Arduino Headers

We’ve already seen Atmel started shipping its SAM V71 Xplained Board based on its latest Cortex M7 a few days ago, but Atmel is not the company which recently introduced a Cortex M7 development kit, as ST Micro also launched an STM32F7 Cortex M7 development kit with Arduino headers and 4.3″ LCD at the end of June. The “Discovery Kit with STM32F746NG MCU” (STM32F746G-DISCO) comes with the following specifications: MCU – STMicro STM32F746NGH6 Cortex M7 MCU with 1 MB Flash, 340 KB RAM, in BGA216 package Memory – 128-Mbit (16 MB) SDRAM (64 Mbits accessible) Storage – 16 MB Quad-SPI Flash memory, and micro SD slot Display – 4.3″ 480×272 color LCD-TFT with capacitive touch screen Camera – Camera connector Connectivity – Ethernet connector compliant with IEEE-802.3-2002 USB USB OTG HS with Micro-AB connectors, USB OTG FS with Micro-AB connectors USB functions: virtual COM port, mass storage, debug port Audio […]

February 27, 2015 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Linaro 15.02 Release with Linux 3.19 and Android 5.0

Linaro 15.02 has just been released with Linux 3.19 (baseline), Linux 3.10.68 and 3.14.34 (LSK), Android 5.0.2, and Ubuntu Linaro Utopic. Listed changes for Linux Linaro are exactly the same as last month, except they’ve used Linux 3.9 release. Power management tools have been added to their AOSP build, and some work has been done for Android 5.0 on the new Hikey board. Here are the highlights of this release: Linux Linaro 3.19-2015.02 GATOR topic: version 5.20.1 updated integration-linaro-vexpress64 topic by ARM LT (FVP Base and Foundation models, and Juno support) updated topic from Qualcomm LT (ifc6410 board support) updated topic from HiSilicon LT (Hi36xx, HiP04, and X5HD2 families support) updated LLVM topic (the community llvmlinux-latest branch) included ILP32 patch set v3 rebased onto 3.19. Initial tests using syscalls LTP tests done. When using ILP32 userland, a few tests have to be skipped (msgctl07, msgrcv0[1-7], msgsnd01) to avoid the stalls, […]

January 30, 2015January 30, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro 15.01 Release with Linux 3.19 and Android 5.0

Linaro has just announced the first release of the year with Linux 3.19-rc3 (baseline), Linux 3.10.65 and 3.14.29 (LSK), Android 5.0.2, and Ubuntu Linaro Utopic. Changes seem to have focused on ARM, Qualcomm, and HiSilicon hardware platforms such as Juno, and IFC6410, and some work has been done on Debian ARM64 rootfs. Here are the highlights of this release: Linux Linaro 3.19-rc5-2015.01 GATOR topic updated to version 5.20.1 builddeb topic: fixes for the dtb files location changes in 3.19 (vendor subdir introduced) updated integration-linaro-vexpress64 topic by ARM LT (FVP Base and Foundation models, and Juno support) updated topic from Qualcomm LT (IFC6410 board support) updated topic from HiSilicon LT (Hi36xx, HiP04, and X5HD2 families support) updated LLVM topic (uses the community llvmlinux-latest branch) Included ILP32 patch set v3 rebased on 3.19-rc5. Initial tests using syscalls LTP tests are done: msgctl07 stalls when using ILP32 userland (no stall with LP64 userland). […]

September 27, 2014 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro 14.09 Release with Kernel 3.17 and Android 4.4.4

Linaro 14.09 has just been released with Linux kernel 3.17-rc4 (baseline), Linux 3.10.54 & 3.14.19 (LSK), and Android 4.4.2 & 4.4.4. Linaro has kept working on their member boards such as IFC6410 (Qualcomm), D01 (Huawei/Hisilicon), Ardnale (Samsung), and Juno (ARM). They’ve also announced they’ll change the tools to build GCC by using cbuild2 instead of cbuild1 for next release, and they’ve enabled a build with gcov (for code coverage analysis) which may mean they’ll work on reducing the kernel size by getting rid off unused code. I’ve also noticed the Arndale and Arndale Octa Ubuntu images are now based on Linux LSK with Mali GPU support since last month. Here are the highlights of this release: Linux Linaro 3.17-rc4-2014.09 GATOR version 5.19 updated topic from Qualcomm LT (ifc6410 board support) and HiSilicon LT updated Versatile Express ARM64 support (FVP Base and Foundation models, Juno) from ARM LT. updated Versatile Express […]

April 25, 2014 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro 14.04 Release with Linux Kernel 3.14 and Android 4.4.2

Linaro 14.04 has been released with Linux Kernel 3.14 (baseline), Linux Kernel 3.10.37 (LSK), and Android 4.4.2. More work has been done on ARMv8 support, and big.LITTLE for both the Linux kernel and Android, as well as work on member hardware platforms such as Origen, Arndale, Arndale Octa, Broadcom Capri, and Hisilicon D01 boards. GCC 4.8-2014.04 Linaro is said to include performance improvements. Linaro Android engineering builds for Nexus 7 and Nexus 10 have been setup, but I can’t quite find the images. They’ve also added the BeagleBone Black to member builds. Here are the highlights of this release: Linaro Stable Kernel (LSK) 3.10.37-2014.04 Updates to Android support (from Google and Linaro) Added Big endian for ARMv7 and ARMv8 Thermal framework DT support Huge pages and transparent huge pages for ARMv8 Tagged pointers for ARMv8 Non-coherent DMA for ARMv8 Other Features big.LITTLE support – ARM MP patch set, IKS (ARMv7 […]

April 19, 2014May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Embedded Linux Conference 2014 Schedule

The Tenth Embedded Linux Conference (ELC 2014) will take place on April 29 – May 1, 2014 at the San Jose Marriott in San Jose, California. The event will feature 90+ sessions on embedded Linux, Android and IoT with over 450 attendees expected to attend. It will also be co-located with Android Builders Summit and the AllSeen Alliance Hackfest. Even if you can’t attend it’s still interesting to see what will be discussed at the event to get a grasp of on-going developments, learn a few things about different optimization techniques, and so on. So I’ve gone through the sessions’ description, and I’ve designed my own virtual schedule with sessions that could be of interest. April 29 9:00 – 9:30 – Keynote: The Paradox of embedded and Open Source by Tim Bird, Sony Mobile Linux has taken the embedded world by storm. Billions (with a ‘B’) of devices have now shipped […]