In Zephyr, there are two boot processes for the ESP32 series SOC: No MCUboot: ROM-> ESP Bootloader-> Zephyr.bin (App) With MCUboot: ROM-> MCUboot -> Zephyr.bin (App) This article focuses on the no MCUboot part. ROM In ESP32C3, the ROM is referred to as the “First stage bootloader”. The ROM is hard-coded into the ESP32C3 and … Read more
Content Summary Introduction 1. Function of Bootloader 2. How to Establish Reliable Bus Communication? 3. Parsing Programming Files (S19/HEX/BIN) 4. NVM Driver Development 5. Other Key Points in Bootloader Development a. Relationship Between Bootloader and Application b. Methods to Jump from Bootloader to Application c. Knowledge and Debugging Techniques Required for Bootloader Development d. Download … Read more
This article briefly outlines some knowledge about Embedded Linux, providing a reference for those who want 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 explore this area! 1. What to Learn About Embedded Linux? 1. Understanding Linux Some … Read more
Follow+Star Public Account, never miss exciting content Author | ZhengN Source | Embedded Miscellaneous Many microcontroller engineers transition to Linux, but not everyone can smoothly “transition”. There are many who give up before even starting. As for how difficult it is to transition to Linux, it varies from person to person. Here, I share some … Read more
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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