Guide: Jishu Community launches Jishu Newsletter, introduces high-quality content from industry media, technical communities, and consulting agencies, and regularly shares industrial technology trends and market application hotspots.
core direction
In-depth interpretation of Armv8/Armv9 memory attributes
This video discusses the aarch64 of Armv8/Armv9, regardless of the situation of aarch32. At the same time, it discusses the knowledge points related to memory attributes. Through the study of this video, you can thoroughly understand the concepts of cacheable/shareable, Inner/Outer, domain and so on. (Source: Jishu Community Arm Software Developers Column)
25 FPS! First release on the whole network | Nvidia opens the source code of BEVFusion deployment, and the edge terminal runs in real time
Recently, Nvidia released a plan to deploy BEVFusion, which runs on Orin at an astonishing 25FPS while maintaining a high-precision mAP of 67.66. This means that the accuracy and speed of radar perception will be greatly improved for the perception of radar camera fusion. improved and easy to deploy. This article describes this scheme in detail. (Source: Jishu Community Embedded AI Topic)
Comprehensive SOA, detailed explanation of Huawei iDVP digital base
In the process of the transformation of the automobile industry to intelligence, the development model of automobiles, consumers' perception of automobiles, and the business model of automobile sales are all undergoing subversive changes. The traditional electronic and electrical architecture has become increasingly unable to meet the requirements of today's consumers for intelligent cars. More and more car companies tend to choose the SOA architecture of regional access + central computing. The iDVP intelligent digital base released by Huawei on the eve of the Shanghai Auto Show is such a set of SOA architecture that meets the regional access + central computing standards. This article analyzes this smart digital base in detail. (Source: Jishu Community Automotive Electronics and Software Column)
How the CPU interacts with memory
This article mainly sorts out the memory structure in the computer, how the CPU reads and writes the data in the memory, and how to maintain the data consistency in the CPU cache. What is virtual memory, and why it exists. (Source: Jishu Community Tencent Technical Engineering Column)
Open Source Project: Mechanical Keyboard Based on MM32F0160 Microcontroller
This article is based on the MM32F0160 microcontroller with a USB peripheral module developed by Lingdong Microelectronics, and realizes a set of low-cost mechanical keyboards with RGB lighting effects. The whole process of designing a mechanical keyboard should be open source. Engineers can re-engrave their own exclusive mechanical keyboard, or continue to carry out secondary development to achieve more interesting works. (Source: Jishu Community Smart MM32 MCU Column)
core observation
The popularity of ChatGPT directly detonated the prosperity of large models, and also made NVIDIA GPUs in short supply. From a development perspective, GPU is not the most efficient computing platform for large models. Why didn't large models such as GPT break through trillions of parameters? The core reason is that on the current GPU platform, both performance and cost have reached a limit. If you want to continue to support larger models with more than one trillion parameters, you need to increase the performance by orders of magnitude and reduce the cost of unit computing power by orders of magnitude. This will inevitably require an AI computing platform with a new architecture. This article explores the future trends of computing chips from multiple perspectives. (Source: Jishu Community Software and Hardware Fusion Column)
"Global EV Outlook 2023": Current status and future trends of the global new energy vehicle market
The IEA released "Global EV Outlook 2023", which contains a lot of content. This article extracts and analyzes the core points, and summarizes a very simple and refined report from six aspects. For detailed instructions, please read the original text. (Source: Jishu Community Zhineng Automotive Electronics Design Topic)
Evolution and Future of Media Transmission Protocol
Audio and video applications have shown a rapid development trend in recent years, becoming the main carrier of Internet traffic, with rich gameplay and various forms, and many complicated media transmission protocols have emerged as the times require. LiveVideoStackCon 2022 Beijing Station invited Zhou Chao, the person in charge of Kuaishou’s transmission algorithm, to introduce the evolution and challenges of media transmission protocols based on Kuaishou’s KTP, KLP, LAS and other protocols and standards based on Kuaishou’s optimization and practice in media transmission. ; Also shared the latest media transmission standard CMTP to explore more possibilities in the future. (Source: Jishu Community LiveVideoStack column)
In the past week, Tencent, Baidu, and Ali have successively announced their financial reports for the first quarter of 2023. Correspondingly, the cloud business data of the three companies in the first quarter of 2023 are also officially disclosed. The data shows that in this fiscal quarter, after offsetting the impact of cross-segment transactions, the revenue of Alibaba Cloud's business segment was RMB 18.582 billion, accounting for 9% of the total business, a year-on-year decrease of 2%; And enterprise service business Q1 revenue was 48.7 billion yuan, an increase of 14% year-on-year, and the year-on-year growth rate of enterprise service business revenue turned positive; Baidu Smart Cloud achieved profitability (non-GAAP) in this quarter, with revenue increasing by 8% year-on-year to 4.2 billion yuan. This article analyzes the cloud business of the three companies in detail. (Source: Jishu Community Jiazi Guangnian Watching Cloud Computing Column)
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