Blog

Static Filesystem

Jürgen Borleis | | PTXdist

Whenever it is a requirement to be able to switch off an embedded device without any previous preparation, the next question is about the consistence of the the used filesystem. If this filesystem is used to be written with new content and this new/changed data hasn't done it's way to the persistent media when the power is cut, this new/changed data is lost.


CERT@VDE Innovation Workshop

Enrico Jörns | | Event, OSADL, RAUC, CERT@VDE

On June, 27th, while the sun was relentlessly heating up Germany as hardly every before, above 50 employees from many companies came together in a well air-conditioned room in the TP ConferenceCenter in Heidelberg. All operating in different fields of application but all involved in embedded systems and all interested to learn something new about security and deploying software updates.


Foster mvebu Support in barebox

Uwe Kleine-König | | barebox

barebox works great on NXP's i.MX platforms. While there is some support for Marvell's mvebu platform, it is not even near being complete. The main limitation is in my eyes that there is no code to initialize RAM settings on these machines.


Bootstrapping Arria10 with OpenOCD and barebox

The Arria10 SoCFPGA can boot from multiple sources: SD Card, NAND flash, QSPI flash and eMMC, that can be selected via the BSEL pins. If the bootrom can not find a valid bootloader on that medium, it will fall back to JTAG. So for developing and testing, the BSEL pins can just be set to a medium that is non-existent. In case of bootstrapping, the bootrom falls back to JTAG anyway, as there is no valid bootloader, yet.


Jump Start your BSP using DistroKit and PTXdist Layers

A BSP (Board Support Package) in Embedded Software is the layer of software that lets you run your application on a specific hardware. For Pengutronix a BSP usually contains a bootloader, Linux Kernel and a userspace. DistroKit is our Demo-BSP that supports a variety of common evaluation boards. DistroKit gives you a head start if you want to develop an application on top of such an evaluation board with most of the hard problems already solved.


Techweek 2019

Chris Fiege, Marie Mann | | Event

In a place, far, far away, where no customer could find us, the Pengutronix team met for the annual Techweek.


RAUC v1.1 Released

Enrico Jörns | | RAUC

Just before the beautiful shine of the new has fully disappeared from RAUC 1.0, it is now time to bring out a new release: v1.1.


bbu's Diary: RIPE78 - Reykjavík

Bjørn Bürger | | Event

Bear and Penguin live a happy life until curiosity attracts them to a journey: to Reykjavík, a place of dreams, with the splendid smell of tomato infused coffee...


Porting Barebox to the Digi CC-IMX6UL SBC Pro

Rouven Czerwinski | | Barebox

One of our projects required the addition of board support for the Digi ConnectCore 6UL SBC Pro to the Barebox bootloader. This article outlines the used development setup and required additions to the bootloader to support a board with a well supported processor. Development of the board support was done live during the monthly talks at Stratum 0, the hackerspace in Braunschweig. The video (in German) is embedded at the end of the article.


USB-SD-Mux: EMC Testing

Chris Fiege | | USB-SD-Mux

Today Jonas and I went to our EMC testing lab to continue the measurements needed to certify electromagnetic compatibility for the USB-SD-Mux.