Silicon Signals

  Introduction We showed off the "Devicetree" in the Zephyr Project RTOS in the earlier blogs. We can tell the OS about the hardware in our system thanks to the Devicetree. Zephyr supports a large number of well-known System-On-Chips (SoCs) and related development boards, as was evident in the first blog post. For every board and associated SoC, Zephyr already has a Devicetree. A development board with the SoC that will be utilized in the finished product design is the first thing I aim for when I start writing firmware for a new project. That being said, the development board's configuration—including pinouts and other peripheral features—usually differs from the final design. I use "Devicetree overlays," a Zephyr-supported method of overriding an existing Devicetree's configuration, to address these discrepancies. I'll walk through how to use a Devicetree overlay in this blog post.   I2C On A Nordic nRF52840 An example is the most effective w...

  As another year draws to a close, we reflect on the one that lies ahead as we wrap up this one. Even though nothing significant may change on January 1st, it's still beneficial to take some time over the holidays to consider the past and make plans for future advancements. Good Software Design Practices Although we embedded developers have a strong affinity for hardware, this does not imply that we must adhere to antiquated software development techniques from the days of assembly. Writing high-quality embedded software requires developing our skills, and good software design is more critical than ever. To start improving yourself, it's a good idea to understand software architecture, design patterns, dependency injection, and TDD. You can learn from a variety of sources, including books, YouTube channels, and blog entries. The following novels are strongly recommended by us: "Test Driven Development for Embedded C" by James Grenning "Modern C+...

 In a groundbreaking announcement, the unveiling of Willow , the latest quantum chip, has marked a monumental milestone in the quantum computing landscape. This state-of-the-art chip achieves unparalleled performance metrics, setting the stage for revolutionary advancements in computational power and scalability. Developed over a decade of rigorous research and innovation, Willow addresses two critical challenges in quantum computing: exponential error reduction and ultra-fast benchmark computation , delivering results that redefine the limits of computational possibility. Quantum Leap in Error Correction One of Willow's most remarkable achievements lies in its ability to exponentially reduce errors as the number of qubits scales up. Errors, a longstanding challenge in quantum computing, arise due to the susceptibility of qubits to environmental interference. This often leads to increased error rates with additional qubits, rendering larger systems impractical. However, Willow cha...

  We discovered in a previous blog post how the hardware on the device could be described by a devicetree in an embedded software application based on The Zephyr Project. We saw an example of how the devicetree can be used to describe the four LEDs found on a nRF52840 development kit (https://www.nordicsemi.com/Products/Development-hardware/nrf52840-dk). We discovered that a complete board can be created by combining several devicetree files. In order to comprehend how to reference elements in the devicetree, we lastly went over some source code. We will discover how The Zephyr Project uses the devicetree in this blog post.   Zephyr Is Not Linux! One of the main points of the previous blog post was that, despite the fact that the devicetree concept is derived from Linux, Zephyr's application is very different. As part of the boot process in Linux, the kernel reads the devicetree in binary form from somewhere in RAM and, based on the devices that are present and enabled, ...