During the firmware upgrade process of the ESP32, the HTTPS transmission rate often becomes a key factor limiting upgrade efficiency. Based on actual test data, traditional HTTPS upgrade methods exhibit the following typical issues: • Slow transmission rate: A 1MB firmware takes about 90 seconds • High memory usage: The SSL handshake and encryption/decryption processes … Read more
Table of Contents 1. Dual Bank Switching Mechanism 1.1 Basic Concepts 1.2 Implementation Plan 1.3 FreeRTOS Integration Points 2. Implementation of Security Verification Process 2.1 Verification Mechanism Design 2.2 Encryption Algorithm Selection 2.3 Tamper Protection 3. Practical Demonstration 3.1 Code Structure 3.2 Key Code Snippets Best Practice Recommendations 1. Dual Bank Switching Mechanism 1.1 Basic … Read more
1 Y Modem Protocol X Modem is an early file transfer protocol. Y Modem is an improved version of X Modem, offering faster and more stable transmission. The term Y Modem generally refers to YModem-1K. Figure 1 Y Modem Protocol Frame The core differences between the two can be summarized in the table below: Click … Read more
(Thank you for your likes and appreciation. If this article resonates with you, please “like” and “recommend” it. Thank you all!) Task Introduction The Siemens TIA Portal software fails to download the program to the PLC, displaying“Firmware version incompatible” error.This is usually caused by a mismatch between the firmware version configured in the project and … Read more
Click the blue text aboveTalks Lab Get more automotive cybersecurity information Many embedded hardware devices integrate OTA functionality, allowing applications to be downloaded remotely after mass production. Before using firmware with OTA functionality, it is necessary to download the BootLoader program in advance to further download the application program. Today, let’s discuss several Flash partitioning … Read more
Introduction: While organizing my room today, I discovered a long-forgotten Jiuxun K2. After my last major modification, it had been lying in the corner of my room. Seeing it again reminded me of some sad memories, so I decided to upgrade it. 1. Flashing OpenWRT Firmware Why choose OpenWRT? First, pre-packaged firmware from others can … Read more
ISP uses communication interfaces for programming, and the boot code is written by the manufacturer and cannot be changed. IAP (In-Application Programming) refers to the ability of an MCU to obtain new code and reprogram itself, allowing a program to change the program. In application programming (IAP), the user’s application code erases/programs the internal Flash … Read more
Source | Renesas Embedded Encyclopedia In industrial control, motor drives, and even IoT edge nodes, firmware over-the-air (OTA) upgrades have become a standard for product lifecycle management. However, traditional OTA often comes with downtime, risks, and inefficiencies. The Dual-Bank Flash architecture in Renesas MCUs provides engineers with an almost “zero-perception” upgrade experience. This article takes … Read more
ObjectiveThe purpose of this document is to develop a fully compatible bootloader based on the basic requirements for firmware upgrades (local upgrade via USB) for STM32.USB Upgrade Process Detect if a USB drive is present during power-up; If a USB drive is detected, check if there is an upgrade file with the corresponding … Read more
Mijia BLE Mesh devices are divided into version 1.0, which is based on the MHCB05P module, and version 2.0, which is based on the MHCB12G module. The main differences are that Mijia BLE Mesh 2.0 supports gateway remote upgrades, consistent scenes, second-level network configuration, ultra-low power consumption, and other capabilities, providing a better experience. However, … Read more