Source | Renesas Embedded Encyclopedia With the development of embedded systems, the demand for code upgrade functionality in products is increasing. Code upgrades can achieve goals such as supporting new features and fixing bugs. The essence of a code upgrade is the process of erasing and writing to the on-chip flash memory (mainly code flash). … Read more
1. Overview of MCUboot MCUboot is an open-source, secure bootloader designed specifically for microcontrollers (MCUs). It was originally part of the Mynewt project and has since become the standard bootloader for RTOS such as Apache NuttX and Zephyr. MCUboot provides a secure firmware update mechanism and supports multiple boot modes, ensuring that the system can … Read more
In ARM-based MCU subsystems, there are only 240 peripheral interrupts available. Therefore, for a large number of interrupts, a secondary lookup is necessary. The cost of this approach is that it cannot achieve timely system responses, as it requires time to read the status registers.This article introduces the method of compressing interrupt signals and the … Read more
Lingdong MM32 MCU Forum https://bbs.21ic.com/iclist-696-1.html *Reading Instructions:The following is a brief summary display, with no specific ranking. For detailed project descriptions, source code, and materials, please click the original link to view. *Outstanding Original Blogger of this Issue: xld0932 Two Methods to Implement CoreMark Testing on the MM32F0140 Series MCU https://bbs.21ic.com/icview-3439882-1-1.html CoreMark is a benchmark … Read more
FPGA: The Communication ‘Transformers’ Born for Extreme Environments The ‘Rigidity’ Pain of Emergency Communication In the event of natural disasters or emergencies, communication infrastructure often bears the brunt. Base stations collapse, fiber optic cables are cut. Conventional communication methods fail instantly. At this moment, the communication capability of rescue teams directly affects the efficiency of … Read more
In embedded development, precise delay control is crucial for many applications, especially in scenarios such as sensor sampling and protocol timing control. Traditional methods of implementing delays often rely on simple for loops; however, this approach not only lacks precision but also wastes a significant amount of CPU resources during long delays. To improve delay … Read more
In 2022, Hanchuan Technology achieved a technological breakthrough based on domestic chips, launching two high-performance embedded core boards: the SAM-MA40T3A based on Allwinner A40i/T3 and the SAM-U3568A based on Rockchip RK3568. Both products are centered around domestic chips, balancing industrial-grade reliability, multi-scenario adaptability, and autonomous controllability, providing localized hardware support for smart homes, industrial IoT, … Read more
What can you do with an old phone gathering dust in your drawer besides turning it into a planter? The coolest digital eco-friendly project of 2025 is to transform it into a home security guard, personal cloud storage, retro gaming console, or even the brain of a smart home! With zero cost, low barriers, and … Read more
The drone industry has established a comprehensive and intricate industrial chain. This chain encompasses every aspect from research and development to manufacturing, sales, and service, while deeply integrating technological innovation, market applications, and policy support across multiple dimensions, showcasing a high level of maturity and vigorous development vitality. The upstream of the drone industry chain … Read more
The concept of 37 types of sensors and actuators is widely circulated on the internet, but in fact, the number of sensor modules compatible with Arduino is certainly more than these 37 types. Given that I have accumulated some sensor and actuator modules, I intend to conduct a series of experiments based on the principle … Read more