Juggling switch ports and setting them up with VLAN configuration can be a difficult and time-consuming task at times. Switches use a variety of interfaces such as SPI/I2C/MDIO that can be used to access registers on the switch and control the port in order to do things such as specifying which VLAN a physical port …
Category: Tech Blog
Improving real-time performance with the Realtime Linux Analysis Tool (RTLA)
“Real-Time” can be defined as a system’s ability to to respond to inputs or events in a timely manner, in order to meet an imposed timing “deadline”. Failure to meet the deadline in a Hard Real-Time system is a catastrophic failure. In a Soft Real-Time system, however, occasional deadline violations are permitted, the occurrences of …
Exploring CHERI, RISC-V Linux Ecosystem
We’ve covered CHERI, and our involvement with the development of the ARM Morello yocto layer before, so for those who aren’t aware of what it is we recommend looking back through our previous blog posts on Introducing ARM Morello and CHERI, and Linux Yocto layer for the ARM Morello board, CHERI (Capability Hardware Enhanced RISC …
A summary of the EU Cyber Resilience Act
The EU Cyber Resilience Act (CRA) is a piece of legislation designed to significantly enhance the cybersecurity of hardware and software products with digital elements placed on the European Union market. It’s the first regulation of its kind globally to impose such comprehensive cybersecurity requirements across the entire product lifecycle. The CRA came into force …
Building Today’s Yocto Tomorrow
Any software expected to have a long lifetime will require maintenance which in turn means that you need to be able to build the software again in the future. So how can you ensure that in 10 years time that you will even have a system that is capable of running today’s build system? How …
Embedded Recipes 2025
Embedded Recipes is a conference held in Nice, France which focuses on open-source embedded systems. It’s organisers accurately describe the conference as “talks, workshops, discussions, food, friends and the beach”. The Good Penguin attended (and sponsored) the event and in this blog post we’ll share our highlights. The CRA and what it means for us …
The Impact of Non-Blocking Consoles (nbcon) on Linux Boot Time
During the Linux boot process, the boot console is responsible for relaying boot messages to the user. On embedded systems this console is often attached to a serial port that can only handle a maximum data rate of a few kilobytes per second which degrades overall boot time. In this post we’ll explore how the …
Building Zephyr RTOS for Raspberry Pi Pico (RP2040)
The Zephyr Project is an open-source real-time operating system (RTOS) focused on embedded and IoT platforms. Zephyr is a Linux Foundation hosted ‘Collaboration Project’, and supports a wide array of devices and architectures. The Raspberry Pi Pico is a microprocessor board developed by Raspberry Pi and is based on their RP2040 chip. The RP2040 is …
Secure Storage with i.MX 95 Verdin EVK using Trusted Keys with OP-TEE
In our previous blog post, we explored securing keys and certificates with Toradex’s recently launched i.MX 95 Verdin Evaluation Kit. We also demonstrated how to build and customise a Yocto reference image for the i.MX 95 Verdin EVK, leveraging OP-TEE and PKCS#11 which you can find here. Another essential aspect of achieving a high level …
Securing Keys and Certificates with i.MX 95 Verdin EVK using PKCS#11 with OP-TEE
Toradex recently launched the i.MX 95 Verdin Evaluation Kit, designed to accelerate next-generation Edge AI, automotive, industrial and medical applications all of which are industries that require high levels of security. An essential aspect of achieving a high level of security is the management and storage of cryptographic keys. This is crucial for authenticating to …