1. Introduction This article briefly outlines some knowledge about Embedded Linux, serving as a reference for those looking to advance from microcontrollers to Embedded Linux. With the increasing number of tutorials on Embedded Linux, I believe many friends studying microcontrollers have started to experiment with it! 2. What to Learn About Embedded Linux? 1. Understanding … Read more
During a business trip to a new energy factory, I was tasked with upgrading the firmware to resolve a bug. The microcontroller needed to have a .hex file reprogrammed, but the product was already sealed, making it impossible to open. Therefore, I had to use the CAN bus to update the firmware via a Bootloader. … Read more
Click “Read the Original” to Access More VxWorks Resources Free download of VxWorks technical materials, resources sourced from the internet, copyright belongs to the original authors! 1 Introduction VxWorks is a real-time operating system produced by Wind River, while U-Boot is a widely known general-purpose bootloader that runs as the earliest code after an embedded … Read more
This issue’s topic: More and more embedded devices now support remote automatic upgrades, eliminating the need for a downloader. This greatly facilitates device maintenance. To enable remote upgrades, it is necessary to write program code that supports upgrades, which can be referred to as BootLoader. This means dividing the device’s program code into two parts: … Read more
1. Basic Concepts In embedded operating systems, BootLoader runs before the operating system kernel and is the first piece of code executed after the system is powered on. It initializes hardware devices, establishes a memory space mapping, and configures the system’s software/hardware environment to an appropriate state to prepare the environment for the operating system … Read more
1. Hardware Background The hardware solution is as follows, with the external 485 serial port communicating with the panel MCU, and the 485 serial port serving as the transmission channel for firmware upgrades. The MCU model is the Aterly AT32F415RCT6, with a ROM size of 256KB, and no external flash, so backup areas are not … Read more
Explanation: 1. The Bootloader handles the initial boot sequence on hardware before the operating system takes over. For example, U-boot is often used as the boot loader in embedded systems before starting embedded operating systems like Linux or FreeBSD. MCUBoot is also a bootloader, but it targets IoT, referring here to systems with limited memory … Read more
This article is a record of Teacher Peng’s first live broadcast on Bilibili, where he took notes while streaming. The video has been uploaded to Bilibili. Now it has been organized into this article. If you want to learn about the detailed process of U-Boot startup code, you can enter my Bilibili space to learn … Read more