C/C++ News - Page 14 of 15 - CNX Software

October 9, 2015 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Marvell EZ-Connect MW302 IoT Starter Kit Supports AWS IoT Cloud Services

Amazon has just launched AWS (Amazon Web Services) IoT (Beta), a cloud platform that lets connected devices securely interact with cloud applications and other IoT devices. As pasrt of the announcement, they also released AWS IoT SDK that comes in three flavors: Embedded C SDK for C-based platforms such as Linux, RTOS, with variants for OpenSSL and mbed TLS. JavaScript SDK in Node.js Arduino Yún SDK. Ten started kits are currently officially supported by AWT IoT, many of them being existing platforms such as LinkIt One, BeagleBone Green, Intel Edison, or TI LaunchPad CC3200, with several of these kits including SeeedStudio’s Grove modules. One of the kits that’s completely new, at least to me, is Marvell EZ-Connect MW302 IoT Starter Kit which include a mini USB to USB cable, and Marvell 88MW302 development board with the following (preliminary) specifications: SoC – Marvell EZ-Connect MW302 ARM Cortex-M4 WiSoC with 512KB SRAM […]

September 4, 2015June 18, 2018 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

LimiFrog is a Bluetooth 4.1 Wearables Devkit Based on STM32L4 with Lots of Sensors (Crowdfunding)

LimitFrog is a tiny board powered by STMicro STM32-L4 microcontroller with Bluetooth 4.1 connectivity, plenty of sensors, and that can run code bare metal as well as RiOT real-time operating system. LimiFrog specifications: MCU – STMicro STM32-L4 ARM Cortex M4 micro-controller @ 80 MHz with DSP, 512KB flash, 128KB RAM External storage – 8MB serial flash for data that supports FAT32 file system Display – 160×128 RGB565 OLED display Connectivity – Bluetooth 4.1 (Panasonic PAN1740) Sensors (Follow this link for datasheets of most components) Pressure, altitude & temperature (LPS25H) 3-axis accelerometer, 3-axis gyroscope (LSM6DS3) 3-axis magnetometer (LIS3MDL) Ambient light, proximity and distance (VL6180X) Ambient sound (SPU0414H5H) USB – micro USB port for power and programming Expansions – 11-pin (through holes) providing access to SPI, I2C, CAN, PWM, GPIOs, ADC, DAC, Analog out, and power signals (3V out GND) Battery – 500 mAh (hours to weeks of battery life depending on […]

November 13, 2013November 13, 2013 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Google’s Portable Native Client Builds Architecture Independent Executable for Portability, and Better Performance

Native Client (NaCl) allows to build native C and C++, and runs it in the browser for maximum performance. Applications such as photo editing, audio mixing, 3D gaming and CAD modeling are already using it. The problem is that you have to build the code for different architecture such as ARM, MIPS or x86. To provide a portable binary, Google announced the Portable Native Client (PNaCl, pronounced pinnacle), which “lets developers compile their code once to run on any hardware platform and embed their PNaCl application in any website”. Instead of compiling C and C++ code directly to machine code, PNaCl generates a portable bitcode executable (pexe), which can be hosted on a web server. Chrome then loads this executable, and converts it into an architecture-specific machine executable (native executable – nexe) optimized for the device where the code runs. Bullet physics simulators (Shown below) and Lua interpreters are two […]

May 21, 2013 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

2013 Embedded Market Study – Software Development & Processors

UBM releases a study of the embedded market every year, by surveying over 1,000 embedded professional every year. They’ve just published their 2013 Embedded Market Study (85 pages report), after surveying over 2,000 engineers and managers, so let’s see whether anything has evolved in the software development and processor space compared to 2012. Again this year, most respondents are based in the US (62%), followed by Europe (20%), and Asia (12%). C/C++ languages still rule the embedded world with 81% market share, although a little less than last year (85%), assembler is a distant third (5%). Interestingly, the average size of development teams seems to have shrunk from 15.9 in 2012 to 14.6 in 2013, the average project being composed of 4 software engineers, 2.9 hardware engineers, 2.7 firmware engineers, 2 QA/Test engineers, 1.5 system integrators, and 1.5 with other functions. About a third of project last less than 6 […]

February 2, 2013February 2, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Replicate CAPE Adds 3D Printring Capability to the Beaglebone

Beagleboard.org launched the Beaglebone Cape Design Contest back in November, several designs were submitted, and yesterday, they announced the 3 winning CAPEs who will be manufactured and sold by Circuitco Electronics: Replicape by Elias Bakken – 3D printer cape Interacto by Chris Clark – Cape with a triple axis accelerometer,a gyroscope, a magnetometer and a 640×480 30fps camera. Geiger cape by Matt Ranostay – Geiger counter cape Since today I’ve started to write about 3D printing, let’s carry on and have a closer look at the Replicape. The Replicape 3D printer cape includes: 5 stepper motors (X, Y, Z, Ext1, Ext2) 3 high power MOSFETs (PWM controlled) for 2 extruders and 1 HPB 3 medium power MOSFETs (PWM controlled) for up to 3 fans 3 analog input ports for thermistors 3 inputs for end stops (X, Y, Z) Programmable current limits on steppers motor drivers (SMD). No need to manually adjust […]

December 3, 2012December 3, 2012 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Collabora and Fluendo Release GStreamer SDK for Android

Collabora and Fluendo have recently announced the availability of GStreamer’s Software Development Kit for Android, which allows developers to create multimedia playback applications for Android smartphones and tablets using Gstreamer and the Android NDK.. The GStreamer SDK for Android targets Android 2.3.1 Gingerbread or higher (API Level 9 or greater). However, due to some of the restrictions of previous versions of Android, some features such as hardware acceleration are only available on Android 4.1 Jelly Bean (API Level 16 up). Normally, you’d need the GStreamer SDK which can be installed on Linux (Ubuntu, Fedora and Debian), Windows (XP/Vista/7/8) and Mac OS X (10.6 to 10.8). But for developing Android applications using Gstreamer, you don’t. What you do need first is a typical Android development environment with the latest Android SDK, the latest Android NDK, and optionally, but recommended, the Eclipse IDE with Android ADT and NDK plugins. Once everything is […]

March 14, 2012March 13, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Designing An Android Sensor Subsystem: Pitfalls and Considerations – Android Builder Summit 2012

Jen Costillo of Lab 126 discusses the Android sensor subsystem at the Android Builder Summit in February 2012. Abstract: This lecture will arm Android device architects with the tactical knowledge they need to navigate the Android Sensor subsystem and make knowledgeable design choices to improve user experience and improve battery performance. The talk will address: Hardware architecture and trade-offs including latency, power, and software architecture implications: Wake up events and power considerations Gesture Detection Algorithm processing location and considerations Testing methodologies (Creating tools to aid develop and collect data. This talk targets the kernel/firmware developer responsible for the sensor architecture. They should be familiar with kernel drivers, embedded systems, hardware bring up, Android services, and the C language. You can also download the presentation slides on linuxfoundation.org website. 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 […]

February 16, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Debian is Worth a Lot (Yet it’s Free) and C/C++ Language Still Rules

James E. Bromberger (JEB) , a contributor to Perl CPAN and Debian, has estimated the cost of developing Debian Wheezy (7.0) from scratch based on the the number of lines of code (LOC) counted with SLOCCount tool, the Constructive Cost Model (COCOMO) and the average wage of a developer of 72,533 USD (using median estimates from Salary.com and PayScale.com for 2011). He found 419,776,604 lines of code in 31 programming languages giving an estimated cost of producing Debian Wheezy in February 2012 of 19 billion US dollar (14.4 Billion Euros), making each package source code (out of the 17,141 packages) worth an average of 1,112,547.56 USD to produce. He also estimated the cost of Linux 3.1.8 Kernel with almost 10 millions lines of source code would be worth 540 million USD at standard complexity, or 1.877 billions USD when rated as ‘complex’. I don’t know which tool he used for […]