open source News - Page 69 of 92 - CNX Software

November 23, 2015November 23, 2015 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

How to Build Brillo Operating System from Source Code and Run Brillo Emulator

Google formally launched Brillo operating system a few weeks ago. The new operating system is a stripped down version of Android that targets Internet of Things (IoT) applications, and more recently the company pushed the source code to their servers. So I’ve given it a try by checking out the code, building Brillo emulator for Intel/AMD, and running it in Ubuntu 14.04 64-bit. First you’ll need to retrieve the source code:

mkdir brillo-master
cd brillo-master
repo init -u https://android.googlesource.com/brillo/manifest -b master
repo sync -j8

mkdir brillo-master

cd brillo-master

repo init -u https://android.googlesource.com/brillo/manifest -b master

repo sync -j8

It took a few hours here with some errors the first time, so I tried again and I finally got the code a few hours later. Once this is done, set the build environment and configuration:

source build/envsetup.sh && lunch

1	source build/envsetup.sh && lunch

Lunch will bring a list of possible builds:

You're building on Linux

Lunch menu... pick a combo:
1. aosp_arm-eng
2. aosp_arm64-eng
3. aosp_mips-eng
4. aosp_mips64-eng
5. aosp_x86-eng
6. aosp_x86_64-eng
7. brilloemulator_arm64-eng
8. brilloemulator_arm-eng
9. brilloemulator_x86_64-eng
10. brilloemulator_x86-eng
11. edison-eng
12. mini_emulator_arm64-userdebug
13. m_e_arm-userdebug
14. mini_emulator_x86_64-userdebug
15. mini_emulator_x86-userdebug
16. brillo_gpios-userdebug
17. brillo_i2c-userdebug
18. brillo_leds-userdebug
19. ledflasher-userdebug

Which would you like? [aosp_arm-eng] 9

You're building on Linux

Lunch menu... pick a combo:

1. aosp_arm-eng

2. aosp_arm64-eng

3. aosp_mips-eng

4. aosp_mips64-eng

5. aosp_x86-eng

6. aosp_x86_64-eng

7. brilloemulator_arm64-eng

8. brilloemulator_arm-eng

9. brilloemulator_x86_64-eng

10. brilloemulator_x86-eng

11. edison-eng

12. mini_emulator_arm64-userdebug

13. m_e_arm-userdebug

14. mini_emulator_x86_64-userdebug

15. mini_emulator_x86-userdebug

16. brillo_gpios-userdebug

17. brillo_i2c-userdebug

18. brillo_leds-userdebug

19. ledflasher-userdebug

Which would you like? [aosp_arm-eng] 9

You could also run the “Brillo emulator” on ARM, and edison-eng must be the build for Intel Edison board. Now you can start the build:

make -j8

make -j8

It has to complete 21491 different tasks, […]

November 19, 2015November 19, 2015 by Jean-Luc Aufranc (CNXSoft) - 25 Comments

GeekBox is a Hackable Android and Linux TV Box Powered by Rockchip RK3368 SoC

There are many Android TV boxes on the market based on Rockchip RK3368 processor, while I’m not aware of any development board based on the latest Rockchip octa-core processor, and Linux support is basically inexistent. One device may fill both gaps: GeekBox. This TV box can run both Android and Ubuntu Linux, while it’s easily disassembled to access expansion headers. The hardware specifications are a little higher-end than most Rockchip RK3368 TV boxes we’ve seen so far: SoC – Rockchip RK3368 octa core Cortex A53 processor @ 1.2 GHz with PowerVR G6110 GPU System Memory – 2GB LPDDR3@1600Mbps Storage – 16GB Samsung eMMC v5.0 flash + micro SD slot Video Output / Display I/F HDMI 2.0 up to 4K @ 60Hz with CEC support Display + touchscreen headers Audio Output – HDMI Connectivity – Gigabit Ethernet, 802.11 a/b/g/n + 802.11ac 2×2 MIMO @ 867 Mbps (AP6354 module), Bluetooth 4.1 USB […]

November 17, 2015November 17, 2015 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Raspberry Pi’s VideoCore 4 GPU Driver Added to Linux Mainline in Kernel 4.4

While your x86 and AMD64 computer will usually boot with Linux mainline without issues, most ARM boards and device won’t, and many of the ones that do boot only support headless mode, and limited functionalities. The Raspberry Pi had been supporting HDMI output with a simple framebuffer for a while, but a developer working on the Videocore 4 (VC4) GPU found inside Broadcom BCM2835 and BCM2836 processors, has recently submitted a patchset to add VC4 GPU to Linux mainline that should make it to Linux 4.4. The commit message does mention some features are still missing, but it’s a start: This pull request introduces the vc4 driver, for kernel modesetting on the Raspberry Pi (bcm2835/bcm2836 architectures). It currently supports a display plane and cursor on the HDMI output. The driver doesn’t do 3D, power management, or overlay planes yet. Via Golem and Sanders. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in […]

November 10, 2015May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

Allwinner A64 Datasheet and User Manual Released

Allwinner has two 64-bit ARM processors in the works: Allwinner H64 and Allwinner A64. Both are quad core Cortex A53 processors with a Mali-400MP2 GPU, H.265 4K video playback with basically the same interfaces and peripherals, but H64 also supports H.264 at 4K resolutions, while A64 is limited to H.264 @ 1080p, and H64 adds a TS interface. The first good news is that two boards are in development: Orange Pi Plus 3 with Allwinner H64 Olimex A64-OLinuXino update with Allwinner A64 Engineering samples have already been produced for the first board, but that’s about all the information we have now, as Shenzhen Xunlong has not built its reputation by releasing documentation early. One the other hand, A64-OLinuXino schematics have nearly been completed, but we already know more details, as not only Olimex boards are open source hardware, but the company defies conventional wisdom by involving the community in the […]

November 9, 2015 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Linaro Releases the First (Alpha) Version of the 96Boards Reference Software Platform

Linaro’s 96Boards initiative was launched at the beginning of the year with Hikey board, and beside the hardware specifications, 96Boards also has some software requirements that include support for “bootloader (open source), accelerated graphics support (binary or open source), a Linux kernel buildable from source code based from mainline, or the latest Google-supported Android kernel version, or the last two LTS kernels, and one of more of the following operating systems: Android, Debian/Ubuntu, Fedora/Red Hat, or an OpenEmbedded/Yocto build of a Linux distribution”. In order to achieve this goal, Linaro introduced the Reference Software Platform for 96Boards, and they’ve now pushed the first Alpha release for Hikey and DragonBoard 410c boards. The release includes a bootloader, the Linux kernel, Debian and AOSP with firmware, source code, and documentation. Some highlights of the Reference Software Platform 15.10 Alpha release include: CE Debian RPB (Reference Platform Build) Debian 8.2 “Jessie” Linux 4.3 […]

November 4, 2015November 4, 2015 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Wind River Introduces Free Cloud-based Operating Systems for IoT Applications

After Google Brillo operating system was officially launched last week, another company has announced free operating systems for IoT. What’s peculiar is that the company is Wind River a vendor of commercial operating systems whose typical business model is to sell licenses for their operating systems and fees for their development services. Nevertheless, the company has now introduced Wind River Rocket real-time operating system, and Wind River Pulsar Linux operating system. Both OSes will interface with the company’s Helix Cloud software-as-a-service (SaaS) products, which is probably how the company intends to monetize their work, on top of customization services. Wind River Helix App Cloud is currently made of three products: Helix App Cloud cloud-based development environment for building IoT applications Helix Lab Cloud cloud-based virtual hardware lab for simulating and testing IoT devices and complex systems. Helix Device Cloud cloud-based platform for managing deployed IoT devices and their data. Some […]

October 6, 2015October 7, 2015 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

Roseapple Pi Board Powered by Actions Semi S500 Comes with 2GB RAM

[Update: I’ve finally received an answer: Lemon Pi and RoseapplePi makers are different companies, but they just happen to both use the same Actions Semi S500 reference design, and RoseapplePi is manufactured in Taiwan. The picture above is V1.0 board, but V1.1 will have some modifications] Lemon Pi development board was launched this May via a Indiegogo campaign. The board, based Actions Semi S500 quad core Cortex A9 processor, got fully funded by over 200 backers, but at the time of launch, some people questioned the used of the word “Lemon” in a product name, as it has several pejorative meanings, including “something that is useless or crappy”. I was contacted about a new Roseapple Pi board yesterday, and upon checking out the details, it looks exactly like the Lemon Pi, except it got upgraded to 2GB RAM, just like in Indiegogo… The board name on the PCB also reads […]

September 27, 2015March 28, 2019 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Using USB123 USBee AX Pro $5 USB Logic Analyzer with PulseView in Linux

I recently wrote about an ultra low cost USB logic analyzer called USB123 USBee AX Pro, which I bought for $9.58 on DX, but I was later informed it also goes for $5.44 on Aliexpress including free shipping to most countries, and a few dollars extra for shipping to some other countries. Nevertheless, I’ve now received it, and instead of testing it with a closed source (and cracked) Windows software, I installed and ran PulseView open source graphical interface for sigrok, which I previously tested on UNI-T UT61E digital multimeter. The package includes USBee AX PRO mini logic analyzer, 10 dupont wires for 8 channels (digital only) and 2 ground pins, as well as a mini USB to USB cable for connection to a computer. The instructions to use the logic analyzer can be found on Sigrok Wiki. My computer runs Ubuntu 14.04, but Sigrok and PulseView can also be […]