NXP i.MX Category - Page 60 of 68 - CNX Software

January 16, 2013January 16, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Barebox Bootloader Status Update – ELCE 2012

Sascha Hauer, kernel developer at Pengutronix, gives an update about the status of Barebox bootloader at the Embedded Linux Conference 2012 in Barcelona, Spain. Abstract: Booting Linux is still a hot topic on embedded systems. It has been 3 years since the last presentation about Barebox at ELC-E, and the barebox community has grown and developed many new and unique features during that time. The talk gives an update on the status of barebox, including MMU support, compressed images, menu system, automouter, tftp, nfs filesystem, USB updating techniques and other goodies. The presentation is for kernel porters who need a robust, flexible,extensible and well structured tool to bring up Linux on embedded hardware. It is equally suitable for new and experienced barebox users. Agenda of the talk: Tour through Barebox – Basic hardware initialization (SDRAM, clocks), Startup, User Interface, Start operating system, Update and Initial hardware bring-up. Devicetree support Multi-platform […]

January 15, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Modular Graphics on Embedded ARM – ELCE 2012

Philipp Zabel, kernel developer at Pengutronix, discusses about graphics and video support for Linux on embedded SoCs at Embedded Linux Conference Europe 2012. Abstract: Porting Linux to new ARM based application processors has recently become easier than ever: the kernel gained many new frameworks like common-clock, oftree and pinmux. However, things get complicated when it comes to high end embedded graphics units.Those graphics systems tend to be composed of a multitude of on-SoC functional blocks that can operate on shared graphics buffers and video signals, as well as off-SoC encoder/converter chips that can be mixed and matched with any SoC.The old framebuffer is certainly not enough for today’s hardware any more, while modern frameworks like KMS and DRM have their own hassles on non-PC style graphics systems.The talk outlines issues we found while working on graphics and video support for the MX53 and MX6 CPUs and gives suggestions for possible […]

January 15, 2013January 15, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Embedded Linux Boot Time Optimizations – ELCE 2012

Alexandre Belloni, embedded Linux engineer and trainer at Adeneo Embedded, gives a presentation about different techniques to optimize boot time for Embedded Linux at ELCE 2012. He also explains how they’ve measured the boot time. Abstract: A common problem faced when embedding Linux is the long boot time before the system is functional. There are many ways to improve boot up time. For a particular project, we had to answer a CAN message from Linux userspace in less than 420 ms from going out of CPU reset. We will describe our methodology and the techniques we finally chose to implement in that particular use case. We will also detail how we measured the boot time efficiently. A live demo will show the results of our work. More specifically, Alexandre discusses two projects at Adeneo where boot time was critical: An automotive platform based on Freescale i.mx53 needs to reply to […]

January 11, 2013 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Etnaviv Project Vivante GCxxx GPU Open Source Driver

You have most probably heard of Lima, an initiative to provide fully open source Mali-200 & Mali-400 drivers by reverse-engineering the closed source Mali GPU drivers. A separate effort, Etnaviv Project, has now started to offer open source drivers for Vivante GCxxx GPU used in SoC such as Marvell Armada 1500 (notably used in mainly Google TV platforms), Rockchip RK2918 (present in many older tablets), Freescale i.MX6 (used in newer tablets, low cost development boards, some SoMs and GK802/Hi802 mini PCs). The project is called Etnaviv. The introduction of Etnaviv Project reads as follows on the corresponding Github account: Project Etnaviv is an attempt to make an open source user-space driver for the Vivante GCxxx series of embedded GPUs. The current state of the project is experimental. It is currently only of use to developers interested in helping develop open source drivers for the hardware, reverse engineering, or in interfacing […]

January 11, 2013January 11, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Crystalfontz CFA-10036 ARM9 Embedded Module Running Linux 3.7

Crystalfontz America, a supplier of LCD and OLED display modules used in embedded systems, has launched a Kickstarter campaign to fund manufacturing and lower the cost of a system-on-module powered by Freescale i.MX28 featuring a small 128×32 OLED display, and lots of GPIOs. Here are the specs of CFA-10036 SoM: Processor – Freescale i.MX283 @ 454MHz (Optionally i.MX287) System Memory – 128 MB DDR2 (Optionally 256MB) Storage – microSD socket (Up to 64GB) Interfaces: 2x CAN interfaces 4x synchronous serial ports 10/100-Mbps 802.3 Ethernet MAC USB 2.0 OTG (connected to microUSB AB on CFA-10036. Used for development purpose) USB 2.0 host controller and PHY 5x UART plus one dedicated debug UART 2x I2C (OLED shares one of these) LCD, touch screen, keypad, and rotary encoder support RTC with 32KHz crystal (requires continuous power) 4x 32-bit timers 8x PWM 5x 12-bit 428KS/s ADC channels 1x 12 bit 2MS/s ADC channel 91 GPIO […]

January 4, 2013January 4, 2013 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

ZEALZ GK802 / HI802 mini PC Can Now Run Ubuntu 11.10

After Freescale made available i.MX6 development resources, we all knew this was a matter of time before Ubuntu runs on Hi802 / Zealz GK802 mini PC based on Freescale i.MX6. The guys at GeekBuying have done it, and a beta version of Ubuntu 11.10 can run on the Zealz GK802. This is not the first time Ubuntu or another Linux distributions can run on one of these mini PCs, but it’s the very first time we should get full hardware graphics and hardware video decoding in Linux. You may have noticed the screen is cut on the sides, that’s because they haven’t done overscan adjustment before shooting the video. They are using Ubuntu 11.10 (Linaro) because that’s the version released by Freescale that supports GPU and video acceleration, and if they used Ubuntu 12.04, it would not work until Freescale releases the proper drivers. However, scrolling does not seem particularly […]

December 21, 2012December 21, 2012 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Linaro 12.12 Release with Linux Kernel 3.7 and Android 4.2.1

Linaro release 12.12 has just been announced, and includes Linux Kernel 3.7 and Android 4.2.1. The tracking version (stable release) uses Kernel 3.4.22. This release upgrades Android to version 4.2.1, Ubuntu images are now based on Ubuntu 12.10 (Quantal Quetzal) and Linaro U-Boot 2012.12 has been released with support for Origen 4 Quad and Arndale boards. Further improvements have been done for OpenEmbedded ARMv8, where they replaced the php Apache module by php-fpm among other things. On the kernel side, USB drivers have been refactored, and a kernel size analysis have been performed on several platforms. The power management team has mainly worked on big.LITTLE IKS and MP implementations, and it’s the first time LEG (Linaro Enterprise Group) is included in the release, and they worked on UEFI for ARM, GRUB for U-Boot, and provided a Ubuntu server image for Arndale board which can boot via UEFI or UBoot. Here […]

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

Habey Unveils MITX-6500 mini-ITX Embedded Board Powered by Freescale i.MX53

There aren’t many mini-ITX ARM board, and the only one I can recall is Kontron KTT30/mITX based on Nvidia Tegra 3. But there’s now at least one more mini-ITX ARM board thanks to Habey MITX-6500 embedded board. This mini-ITX board feature Freescale i.MX535 or i.MX536 processors, 1GB DDR3 and a 4GB on-board SSD. Since this is mainly an industrial board, it also features 2 Ethernet NIC and a whooping 13 COM ports. The board is suitable for a range of applications such as human to machine interfaces, data acquisition, point of sale, vehicle telematics, digital signage, industrial automation, building controls and connected appliances. Contrary to many other embedded companies, Habey also sells the board available to individuals. Here are the specifications of this board: CPU – Freescale ARM Cortex A8 i.MX535 @ 1 GHz or i.MX536 @ 800 MHz System Memory – 1GB on-board DDR3 Storage – 1x SATA 3Gb/s, 1x […]