In digital signal processing (DSP) systems, noise issues often arise. To ensure signal quality and improve system performance, many engineers opt for hardware noise reduction techniques. So, do you know how this hardware noise reduction is implemented? 1. Board Structure Domain Line Layout Optimization Use a large area ground plane with the power supply: ensure … Read more
In high-speed digital signal processing (DSP) systems, electromagnetic interference (EMI) is a critical issue that cannot be overlooked. Due to the high-frequency signal processing and complex circuit layouts involved in DSP systems, the electromagnetic environment becomes more complicated, easily leading to signal distortion, system instability, and even functional failure. Therefore, engineers need to understand the … Read more
The DSP system (Digital Signal Processor system) is one of the commonly used electronic systems by many electronic engineers. To master the DSP system, the algorithms involved cannot be overlooked. Below, we will discuss the common algorithms and principles of DSP systems, hoping to help everyone. 1. Discrete Signals and Systems Principle: Discrete signals and … Read more
Source: Dongxing Securities DSP, or Digital Signal Processing technology, refers to chips capable of implementing digital signal processing technology. DSP chips are a type of fast and powerful microprocessor, uniquely capable of processing data in real-time. Internally, DSP chips use a Harvard architecture that separates program and data, featuring specialized hardware multipliers to quickly implement … Read more
Recently, Arm officially released the TCS23 (Total Compute Solutions 23) platform along with corresponding IP products, including the Cortex-X4, A720, A520 CPUs based on the Armv9 architecture, and the latest Immortalis-G720, which is a new IP based on Arm’s fifth-generation GPU microarchitecture, along with an updated DSU. Undoubtedly, these IPs will be the focus of … Read more
Click the above Computer Enthusiasts to follow us When it comes to ARM, everyone should be very familiar with it. It does not produce chips; it only provides an idea for chip design, including native core IP and the ARMv instruction set. Among them, the core IP includes the well-known Cortex-A78 and Cortex-X1. Chip manufacturers … Read more
1. What do T, D, M, and I stand for in ARM7TDMI? Answer: These four letters represent a characteristic of ARM: T: High-density 16-bit Thumb instruction set extension D: Supports on-chip debugging M: 64-bit multiplication instruction I: Includes embedded ICE hardware simulation module 2. Quick Knowledge Summary: ARM7 adopts a 3-stage pipeline, while ARM9 adopts … Read more
One Introduction Often, programs run without an operating system, which is known as bare-metal operation and cannot run directly in Linux. Therefore, alternative methods must be used for analysis. Taking a CTF problem as an example, we will learn about analyzing bare-metal programs on the ARM architecture. Two Analysis Program address: https://dn.jarvisoj.com/challengefiles/confusedARM.hex.f4e616545ff1a18526b9d1c90ea648ff This program is … Read more
Click the blue "Arm Selected" in the upper left corner and select "Set as Star" Note: This article primarily discusses the ARMV8-aarch64 architecture, gicv3, and Linux kernel 5.14 by default. Consideration: Have you ever thought about a scenario where a high-priority interrupt preempts another interrupt that is currently being processed? This is known as interrupt … Read more
ARM defines two low-power interfaces for low power control handshakes, namely Q-Channel and P-Channel. The Q-Channel was discussed previously in “SoC Design Power Consumption – Q Channel“. The Q-Channel is relatively simpler than the P-Channel, as it only controls two states: on and off. This is fine for handshakes controlling clocks, but insufficient for handshakes … Read more