1. Basic Structure of Embedded Microprocessors (1) An embedded hardware system generally consists of an embedded microprocessor, memory, and input/output components. (2) The embedded microprocessor is the core of the embedded hardware system and typically consists of three main parts: control unit, arithmetic logic unit, and registers: A. Control Unit: Responsible for basic operations such … Read more
Development boards are actually quite interesting, as they are commonly found in our daily lives. A development board is a circuit board based on a chip, designed to facilitate our development work. This means that, theoretically, any device controlled by a program and chip will have a development board used during its research and development … Read more
LattePanda Sigma is the latest generation of the LattePanda series that has recently been launched. LattePanda Sigma Its biggest feature is that it is equipped with the Intel 13th generation Raptor Lake CPU i5-1340P processor, released in the first quarter of 2023. With 12 cores and 16 threads, four performance cores can reach a maximum … Read more
Today, I will share knowledge related to OTG. 01 [OTG Interface and Converters] OTG is short for “On The Go”, which can be understood as “plug and play”.USB transmission has a master-slave structure, and all USB transmissions are initiated by the Host.. You can insert a USB flash drive into the development board, at which … Read more
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 … Read more
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 … Read more
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 … Read more
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, … Read more
Set as a favorite! Get updates first-hand Permanent Signature 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 never support any versions higher than 15.5 b4 or lower … Read more
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. Even excluding economic reasons, when learning a piece of hardware, there are many scenarios where one has to buy hardware … Read more