The Cortex-R5F is a real-time processor core based on the ARMv7-R architecture, designed for embedded systems that require high reliability and low latency. It is widely used in industrial automation, automotive electronics, and intelligent control.The core advantage of the Cortex-R5F lies in its low latency interrupt handling capability, enabling rapid response to external events while … Read more
Click the above blue text to follow us Real-time systems are crucial in embedded applications, with the core focus on ensuring tasks are completed within specified time frames. Based on the strictness of deadline adherence, real-time systems are classified into hard real-time and soft real-time. Hard real-time systems require tasks to meet deadlines 100% of … Read more
To start with the conclusion: Simply put, the interrupt mechanism of the HX2000 is more flexible but complex, suitable for high-precision applications such as industrial motor control, whileCortex-M focuses more on ease of use and automated processing, making it suitable for general embedded control.First, let’s discuss the similarities: Firstly, the interrupt vector table mechanism: Both … Read more
Today, I worked with a colleague on a TP driver. After powering on, the logs were normal, but the touchscreen was unresponsive, so we began troubleshooting. After powering on, we could read the chip’s chip ID normally, which indicates that the I2C communication is functioning correctly, and it also confirms that the power supply to … Read more
01Test Environment Xilinx ZCU106 Single BoardXilinx VCU TRD2020.1 02Introduction In embedded Linux systems, Linux directly manages all CPUs. By default, the system aims to maximize throughput rather than real-time performance. To ensure real-time performance, more precise control over the CPU can be implemented based on the application scenario. Common methods include process CPU isolation, CPU … Read more
Real-Time Requirements in Embedded C Programming In embedded systems, real-time is a crucial concept. Whether it is controlling motors, collecting sensor data, or handling communication protocols, tasks must be executed within strict time constraints. This article will detail the real-time requirements in embedded C programming and provide relevant code demonstrations. What is Real-Time? Real-time refers … Read more
In-Depth Analysis of FreeRTOS Kernel Source Code: From Task Scheduling to Interrupt Handling Introduction As a representative of embedded real-time operating systems, FreeRTOS has an elegant and efficient kernel implementation. This article will delve into the key implementations of the FreeRTOS kernel, including task scheduling, memory management, interrupt handling, and other core mechanisms. Task Management … Read more
<span>FreeRTOS</span> configuration is implemented through macro definitions to control the behavior of the FreeRTOS kernel, with parameters designed in <span>FreeRTOSConfig.h</span>. Below is a detailed explanation of commonly used configurations. Scheduling Method Whether to enable preemptive scheduling <span>#define configUSE_PREEMPTION 1</span> : Enables preemptive scheduling (<span>preemptive scheduling</span>), allowing higher priority tasks to interrupt lower priority tasks. <span>#define … Read more
Today, we will discuss interrupt handling in ARM Cortex-M. In embedded systems, interrupts are the core mechanism for achieving real-time responses. Imagine if there were no interrupts: • When a button is pressed, the system might be busy with other tasks and miss the response. • Incoming communication data might be lost due to untimely … Read more
Arduino and Photoelectric Sensors: Automatic Counter Design In industrial production, product counting is a fundamental and important process. This article will introduce how to use Arduino and photoelectric sensors to create an automatic counter that achieves the function of automatically counting objects as they pass by. This project is suitable for beginners and helps to … Read more