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
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 … Read more
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 … Read more
Is working for ARM the right path for Chinese companies? ASR (Shanghai Aojie Technology Co., Ltd.)’s recent strategic adjustment is a prime example to the contrary. Recently, ASR, which announced its acquisition of Marvell’s mobile communications division last June, has finally released its new direction. It has obtained various technology licenses from CEVA and will … Read more