LattePanda Sigma: The Next Generation Development Board
Understanding USB OTG Interface Circuits on Development Boards
Today, I will share knowledge related to OTG.
You can insert a USB flash drive into the development board, at which point the development board acts as a USB Host.
If the development board needs to communicate with a PC, it must
Introduction to ARM Processors: Modern Processor Features and Cortex-A9 Microarchitecture Analysis
Previous Articles:
Introduction to ARM Processors 1 - Overview
Introduction
This article is the second part of the introduction series on ARM processors, mainly introducing some basic technologies and concepts of modern superscalar out-of-order processors. We will take the Cortex-A9 processor as an example to see which technologies are used to enhance performance, laying the foundation for our subsequent understanding of the microarchitecture of ARM processors and comparative analysis.
Note: In fact, explaining the key points of modern processor technology can be quite complicated.
The Rise of ARM Chips: A Game Changer in the Semiconductor Industry
Since its official establishment in 1990, ARM has continuously made breakthroughs in the field of 32-bit RISC (Reduced Instruction Set Computer CPU) development, evolving its architecture from V3 to V7. As ARM has always sold intellectual property (IP) to major semiconductor manufacturers without engaging in chip production and sales itself, and due to the significant advantages of its core designs, such as low power consumption and low cost, it has gained strong support from numerous semiconductor manufacturers and original equipment
Introduction to Mainstream Router CPUs on the Market
In the last issue, we introduced some mainstream router CPUs: 【Router Series】 Introduction to Mainstream Router CPUs 1
This issue will complete the remaining information, but they are mostly mid-to-high-end routers, so enjoy reading.
1: BCM4906/4908
These two chips are the true successors of the 470x series, adopting the ARMv8 A53 architecture, with a frequency of 1.8GHz. The main difference between the two chips is that one is dual-core and the other is quad-core. With the A53 architecture and 64-bit support, the clock
Understanding ARM TrustZone Architecture for Enhanced Security
Official Block Diagram
1. ARMv7
2. ARMv8
(1) aarch32
(2) aarch64
(3) Summary of arch32 and aarch64
(4) Understanding with Code
3. Cortex-A9 architecture
1. ARMv7
2. ARMv8
(1) aarch32
(2) aarch64
(3) Summary of arch32 and aarch64
Understanding aarch32 and aarch64 under armv7:
If both secureos and monitor are 64-bit, secureos runs at el1, monitor runs at el3;
If both secureos and monitor are 32-bit, both run at EL3 (secureos
TrollInstaller2 Now Supports A9-A11 Devices for iOS 14.0-15.5 Without Jailbreak or Computer
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TrollStore
TrollInstaller2 now supports arm64 (A9-A11) devices. Previously, TrollInstaller2 already supported arm64e devices (A12-A15), and now it is the official tutorial for installing TrollStore on all devices for versions (14.0 - 15.5b4).
Please note: TrollStore will
Essential Online Simulators for Development Boards
For engineers, there are certainly many development boards at hand. However, to be honest, development boards are not cheap, and during use, it is inevitable to burn one or two, which can be quite painful.
2024-11-14
Discover the Latest Development Boards for Gaming and More!
The HarmonyOS Connect smart hardware open ecosystem is about to enter the era of rich device industrialization! To allow developers to experience HarmonyOS rich device development early, we will present seven development boards that support rich device development.
1. HH-SCDAYU200
The HH-SCDAYU200 development board is launched by Jiangsu Runhe Software Co., Ltd. This development board is designed based on the Rockchip RK3568 chip, integrating a dual-core architecture GPU and a high-performance NPU, with an onboard quad-core 64-bit Cortex-A55 processor, using advanced 22nm
Top Smart Voice Development Boards You Should Consider
I know a pseudo-engineer who loves to chase after all sorts of trendy gadgets. Recently, smart voice assistants have become popular, making him envious for a long time. However, this person is quite stingy and couldn't bear to buy the Tmall Genie for 399, so he turned his attention to many smart voice development boards that have recently been released.
In fact, the design manufacturers of development boards, especially those with strong independent design capabilities like SEEED, Adafruit, and MikroEle, are