1. Basic Knowledge of JTAG JTAG stands for Joint Test Action Group and is the IEEE 1149.1 standard. The advantage of using JTAG is that it allows integrated circuits to be tested on a PCB through boundary scan. In the ARM7TDMI processor, JTAG can directly control ARM’s internal bus, I/O ports, and other information for … Read more
To debug ARM, you must follow the ARM debugging interface protocol, and JTAG is one of them. During simulation, IAR, KEIL, ADS, etc., all have a common debugging interface, and RDI is one of them. So how do we convert RDI to the ARM debugging protocol (JTAG)? There are two approaches: Write a service program … Read more
Keywords: Uninitialized, Compilation Environment Table of Contents 1. Introduction 2. IAR Method for Uninitialized Variables 3. Keil Method for Uninitialized Variables 4. CubeIDE Method for Uninitialized Variables 01 Introduction Sometimes in our applications, we require variables to maintain continuity or to retain state, such as during a Bootloader jump. For various reasons, during a reset … Read more
IAR for ARM is a top-tier integrated development environment, fully known as “IAR Embedded Workbench for ARM”. It is developed by the world-renowned Swedish company IAR Systems, which specializes in embedded systems development tools and services. Founded in 1983 and headquartered in Uppsala, Sweden, the company went public on NASDAQ OMX Stockholm on January 4, … Read more
The three main components of embedded systems: bootloader (uboot), Linux kernel, root filesystem. There are three powerful tools for creating root filesystems: busybox, buildroot, yocto. Using busybox to build the filesystem only helps us set up some common commands and files. Libraries, files in the /etc directory, etc., need to be created manually, and we … Read more
# 1 | Building Qt with Buildroot for the File System Tool Description Buildroot https://buildroot.org/download.html windows Download buildroot, drag to ubuntu ubuntu18.04 or 20.04 Qt environment setup, Qt Qt5.12.8 [1] Unzip the file kali@ubuntu:~/Desktop/Buildroot$ tar zxvf buildroot-2024.02.tar.gz # 1.1 | Configure Buildroot Enter the buildroot-2024.04 directory. Enter the command below to install the libraries needed … Read more
Click the blue text above to subscribe! 1 Last night, the news broke that ARM has suspended its cooperation with Huawei, yet major financial news outlets have collectively remained silent on the matter; the deeper meaning of this is left for you to interpret! Now, let’s talk about the ARM architecture. Currently, Qualcomm, Apple, and … Read more
Today, I will share with you the hardware UART peripheral debugging output mechanism under IAR. In the embedded world, outputting print information is a very common auxiliary debugging method. With the help of print information, we can easily locate and analyze program issues. There are many ways to implement print information output in embedded application … Read more
First, let me report on the work; we have completed the testing of the MacBook Pro. If all goes well, we will be able to post the review article on WeChat tomorrow, and the video will be filmed and released promptly. After we receive the customized 16GB version of the Mac, we will also create … Read more
Whether you are a gaming enthusiast pursuing the ultimate experience or just an average computer user interested in consumer electronics, you may know that the 2019 Taipei Computer Show (Computex) is currently in full swing. Not only have AMD, Intel, and NVIDIA released their latest models of CPUs and graphics cards with significant performance leaps, … Read more