hands-on_SOC_integration

modern system-on-chip design on arm 笔记Modern system-on-chip (SoC) design on ARM involves the integration of multiple components onto a single chip, enabling high-performance computing in a compact and power-efficient package. In this note, we will explore some key aspects of SoC design on ARM.1. Architecture: ARM provides a range of processor architectures, such as ARM Cortex-A, Cortex-R, and Cortex-M, each catering to different application requirements. SoC designers need to select the appropriate architecture based on factors like performance, power consumption, and real-time processing capabilities.2. Integration of Components: SoC design involves integrating various components like the processor core, memory subsystem, peripherals, and interfaces onto a single chip. This integration enables efficient communication between different components, reducing latency and power consumption.3. Power Management: Power management is a critical aspect of SoC design, as modern devices demand high performance while maintaining long battery life. SoC designers use techniques like power gating, clock gating, and voltage-frequency scaling to optimize power consumption in different operating modes.4. Security: With the increasing connectivity of devices, SoC design needs to prioritize security. ARM provides TrustZone technology, enabling the isolation of secure and non-secure software and protecting sensitive data from unauthorized access. SoC designers need to incorporate security features and developrobust encryption and authentication mechanisms.5. Verification and Validation: SoC designers undertake rigorous verification and validation processes to ensure the correct functioning of the integrated components. This involves testing the system for diverse scenarios, corner cases, and performance benchmarks. Advanced verification techniques like simulation, formal verification, and emulation are utilized to detect and fix design flaws.6. Software Development: SoC designers work closely with software developers to optimize software architecture for the specific SoC design. This collaboration involves developing device drivers, firmware, and operating systems that leverage the hardware capabilities effectively.7. Packaging and Manufacturing: Once the SoC design is finalized, it needs to be packaged and manufactured. The packaging involves integrating the chip into a package with appropriate interconnects and thermal management. The manufacturing process includes wafer fabrication, die testing, and final assembly.In conclusion, modern SoC design on ARM involves selecting the right processor architecture, integrating components, optimizing power consumption, ensuring security, thorough verification and validation, software development, and packaging/manufacturing. All these aspects collectively contribute to the successful deployment of efficient and high-performance ARM-based SoCs.。

Why Customers Choose CounterACT• Agentless: No endpoint agents required to discover, classify and assess devices.• Heterogeneous support: Works with leading network infrastructure vendors and third-party security solutions.• Real-time and continuous visibility: See devices the instant they connect, ensuring accurate and up-to-date asset inventory.• Device intelligence for your extended enterprise: See and assess devices that other solutions can’t across campus, data center and clouds, IoT and OT.• 802.1X and non-802.1X: Flexible architecture to support a wide range of today’s complex networks.• Automated control: Automate an extensive range of actions through a robust policy engine.• Rapid time to value: Easy todeploy and configure, enabling device visibility across the extended enterprise in hours.ForeScout CounterACT®Transforming Security Through Visibility™ Across the Extended EnterpriseOrganizations continue to grapple with network security, not just on campus but in data centers and clouds. At the same time, their infrastructure is becoming increasingly complex due to the explosive growth and diversity of devices on their networks. A vast majority of the new devices are IoT and operational technology (OT) devices, and most can’t accept security agents. T o complicate matters, industrial networks and critical infrastructure networks are no longer isolated or air-gapped from IT networks. This increases business risks—especially when organizations don’t have insight into what’s connected to their networks.Attackers are also taking advantage of these business trends. They have begunto focus on easy-to-target new attack surfaces. Once they get into your network,they move laterally, trying to gain access to sensitive information or cause business disruption.The Key Challenge: Limited VisibilityYou can’t secure what you can’t see.™ What you need is comprehensive visibility across your extended enterprise—from campus and data center to cloud and operational technology networks. Without visibility of all connected devices, howcan you truly secure the enterprise and implement important security measures? In other words, how can you effectively control access to your network, perform network segmentation, ensure device compliance, manage assets and respond to incidents? Most security tools are great at sending alerts yet incapable of taking actions. The high volume of alerts—including many false positives—requires manual validation and remediation by resource-constrained security operations staff. You need a solution that reduces the attack surface and lets you automate remediation and incident response. The ForeScout PlatformForeScout CounterACT is the visbility platform that provides insight into virtually any connected device across your extended enterprise and gives you a single-pane-of-glass perspective. The platform deploys quickly into your existing environment and rarely requires infrastructure changes, upgrades or endpoint reconfiguration.ForeScout’s visibility platform provides See, Control and Orchestration capabilities. ForeScout pioneered an agentless approach to security which lets you discover devices in real time, then classify, assess and monitor these devices. Visibility extends to virtual devices such as VMs in private and public clouds. In addition, the platform provides agentless control and continuous monitoring across your heterogeneous environment. You can automatically trigger actions to notify, control and remediate. The ForeScout platform provides continuous visibility and control of every IP-connected device across yourextended enterprise.How ForeScout CounterACT WorksSee. T o know what’s on your network, you must talk to your network. The ForeScout platform integrates with switches, wireless infrastructure, VPNs and cloud-based network management systems such as Cisco Meraki. In private and public clouds, we directly integrate with virtualization and cloud management infrastructure like VMware® and AWS®. Such multivendor integrations provide detailed visibility into virtually every conceivable type of device, whether IPv4 or IPv6, virtual machines or cloud instances, IoT or OT devices and more. Industrial IoT and critical infrastructure systems create unique visibility challenges. Most of these devices can’t support agents. They can be especially sensitive to active probing and scanning techniques, as they can cause system and business disruption. Our platform enables you to use passive-only discovery and profiling techniques that provide device visibility without introducing operational risk. It also can provide you with accurate and real-time inventory of OT devices. With the ForeScout platform, you can discover and classify devices the instant they connect, and continuously monitor them afterwards—without requiring security agents or previous device knowledge. You classify your devices with the latest device classification profiles from ForeScout Research, whose analysts study more than three million devices in the ForeScout Device Cloud, thereby improving device classification efficacy and coverage. You can quickly evaluate devices to determine users, system configuration, applications, presence of security agents and more (see graphic below). This knowledge lets you create context-aware security policies for compliance as well as network access and segmentation using ACLs, VLANS and virtual firewalls. You also assess the security posture of your devices, identifying out-of-date security software and operating systems, noncompliant configurations and more. CounterACT also detects suspicious or rogue devices. Control. ForeScout can automate policy-based access control and enforcement, allowing you to perform a range of actions to limit access to appropriate resources, find and fix endpoint security gaps and more. You can maintain and improve compliance with corporate policies or industry regulations. For example, CounterACT can remediate noncompliant endpoints by initiating antivirus software updates, triggering SCCM for patching endpoints, killing blacklisted apps, etc. Unlike other solutions that are limited to built-in remediation actions, you can run custom scripts on devices to let you keep up with changing needs. In addition, protecting your enterprise from risky BYOD devices belonging to employees and contractors becomes easy as you can place them on a guest network or route them to an automated onboarding portal for network access.Depending upon your policies or the severity of the situation, you can enforce control by automating a vast range of network and host actions. For example, minor violations result in an alert, while serious violations might trigger an endpoint to be quarantined. Our Control capability puts a wide range of enforcement options into your hands, helping you close security gaps.How ForeScout Helps You See More:Passive discovery and profiling• SNMP traps• DHCP fingerprinting• HTTP user-agent• TCP fingerprinting• NetFlow• Poll Network Infrastructure via SNMP,CLI – get MAC/ARP tables and PoEdetails• Monitor RADIUS requests• MAC classification database• vSphere and EC2 integration• CMDB or other external data sourceActive scanning techniques• NMAP • RPC • SSH• SMB • WMI • SNMPControl Network Access:Protect your campus with networkaccess control• Control access to enterpriseresources based on device profilesand user roles• Prevent infected or noncompliantdevices from accessing the networkand spreading malware• Automatically enforce actions foridentified situations without humaninvolvementSegment Your Network:Enhance security and regulatorycompliance with networksegmentation.• Gain visibility into what devices aretalking to each other across campus,data center, cloud and OT• Dynamically assign segments as thenetwork and/or devices change• Prevent select devices fromcommunicating to other devices indifferent areas of the network Examples of information that ForeScout can discover.Orchestrate. ForeScout orchestrates information sharing and policy-based security enforcement operations with leading IT security and management products to automate security workflows and accelerate threat response without human intervention. ForeScout Extended Modules are available for NGFWs, ITSM, SIEM and more. They let you:• Break down security silos and leverage your existing security investments • Make your existing security tools and analysis richer and more context-aware, enabling a constant exchange of device hygiene, threat, behavior and compliance data • Automate policy enforcement to accelerate response and substantially improve your security posture Our orchestration capabilities allow you to leverage your existing investments in IT and management tools.Centralized ManagementCounterACT Enterprise Manager provides a single pane of glass to centrally manage and control multiple physical and/or virtual CounterACT appliances in large networkenvironments. You gain overall visibility and control of devices as well as streamlined Host and network control examples.Our Device Intelligence Dashboard is fully customizable to provide up-to-date device insight and compliance status to IT and SOC teams, your CIO/CISO and compliance officers.Learn more at © 2018 ForeScout T echnologies, Inc. All rights reserved. ForeScout T echnologies, Inc. is a Delaware corporation. A list of our trademarks and patents can be found at https:///company/legal/intellectual-property-patents-trademarks . Other brands, products, or service names may be trademarks or service marks of theirrespective owners. Version 08_18ForeScout T echnologies, Inc.190 West T asman DriveSan Jose, CA 95134 USAToll-Free (US) 1-866-377-8771Tel (Intl) +1-408-213-3191Support 1-708-237-6591operations across your extended enterprise—from campus and data center to clouds and OT environments. You can manage your deployment easily with:• A web dashboard that’s customizable for varied personas, from security operations teams to IT executives, and for multiple use cases, from compliance management to incident response • A fully integrated reporting engine that helps you monitor your level of policy compliance, help meet regulatory audit requirements and produce real-time inventory reports • A user-friendly interface that allows you to easily view your devices by category and create and manage security policies for your extended enterprise • Rapid analysis of policy flow and actions with a policy graph to fine-tune policies • An asset inventory that provides a granular view of your networked devices such as users, classification, open ports, vulnerabilities and more—allowing you to take actions based on endpoint properties Scale and Deployment Manage large and heterogeneous deployments—with resiliency • Scalability: Continuously monitor more than 2 million devices in a single deployment. Gain visibility and network controls across IPv4 and IPv6 devices.• Heterogeneous support: Supports popular switches, routers, VPNs, firewalls, devices, operating systems (Windows, Linux, iOS, OS X, Android), patch management systems, antivirus systems, directories and ticketing systems—without infrastructure changes. • Nondisruptive: Deploy without impacting users or devices. Introduce automated controls gradually, starting with appropriate actions for the most problematic locations. • Resiliency: Configure automated failover or disaster recovery for service continuity—without requiring idle standby appliances. Deploy with ease • Deployment options: Deploy virtual or physical appliances across your centralized, distributed or hybrid environments.• Hybrid cloud support: Gain consolidated visibility and control of your private and public clouds. Perform risk mitigation and response. Optimize resources and contain virtual machine sprawl.• Easy security policy creation: Gain built-in policy templates, rules and reports. Drive consistent policies across multivendor and hybrid cloud environments.The Forescout platform is easy to deploy and provides you with the scale you require. IT Central Station Review Predicts 2016: Security for the Internet of Things, December 9, 2015, Gartner Inc. IDC Business Value Analysis, December 2016ForeScout Certifications• USMC Authority to Operate (ATO)• U.S. Army CoN (Certificate ofNetworthiness)• UC APL (Unified CapabilitiesApproved Product List)• Common Criteria EvaluationAssurance Level (EAL) L4+• DoD Information Network ApprovedProducts List。

海思ot开头的函数-回复海思OT开头的函数是指基于海思芯片平台的OT（One Time）功能相关的函数。

海思芯片是华为旗下的自主研发的一种高性能和低功耗的处理器芯片，主要用于移动终端和物联网设备。

OT功能是指芯片在生产过程中，给予了部署和调试软件、固件以及硬件的一次性机会。

本文将围绕海思OT开头的函数展开讲解，包括其定义、核心功能以及具体应用等。

首先，我们来定义海思OT开头的函数。

在海思芯片平台上，OT函数通常用于进行一次性配置和初始化操作。

这些函数的命名通常以"OT_"为前缀，后面跟随具体的功能描述。

例如，OT_SetConfig用于设置特定的配置项，OT_Init用于初始化相关资源等。

通过这些OT函数，开发者可以在芯片生产阶段执行特定操作，为后续的应用开发来做好准备。

接下来，让我们详细探讨一下海思OT开头函数的核心功能。

首先，OT 函数主要用于配置芯片的参数和寄存器，以满足特定的应用需求。

例如，OT_SetConfig函数允许开发者设置芯片的一些关键配置，如交互模式、通信协议等。

通过调用这些函数，开发者可以根据不同的应用场景进行参数的灵活配置，从而提升芯片的性能和可靠性。

其次，OT函数还可以用于对硬件和固件进行一次性操作。

通过OT_Init 函数，开发者可以初始化芯片内部的资源和外设，为后续的应用程序进行准备。

同时，OT函数还可以进行固件的加载和升级等操作，以确保芯片能够适应不同的应用需求和更新需求。

最后，让我们看一些海思OT开头函数的具体应用场景。

1. 芯片制造厂商可以使用OT函数对芯片进行参数和寄存器的配置，以及固件的加载和升级。

这样可以有效地减少生产和调试的工作量，提高生产效率。

2. 设备制造商可以使用OT函数对芯片进行一次性设置和初始化，以确保设备的正常运行和稳定性。

3. 应用开发者可以利用OT函数进行特定的配置和初始化操作，以满足不同的应用需求，提高软件的兼容性和性能。

Bluetooth Low EnergyProduct Brief v2.0OverviewBluetooth version 4.0 introduced Bluetooth with low energy functionality. Bluetooth low energy technology allows for short bursts of long-range radio connections, making it ideal for applications that depend on long battery life and don’t need high throughput streaming data. Developers are now able to create sensors that can run on coin-cell batteries for months and even years. Bluetooth low energy technology is built on an entirely new development framework using GATT (Generic Attributes). Silicon Labs supports the latest version of the Bluetooth ® Core Specification, Bluetooth™ LE 5.4. This enables customers to claim compliance with the latest Bluetooth spec.Bluetooth Low Energy ArchitectureThe Bluetooth Low Energy architecture components are as follows: Physical Layer: Controls radio transmission/receiving.Link Layer: Defines packet structure, includes the state machine and radio control, and provides link layer-level encryption.HCI: A Host-to-Controller interface (HCI) standardizes communication between the controller and the host.L2CAP: Logical Link Control and Adaptation Protocol acts as a protocol multiplexer and handles segmentation and reassembly of packets. ATT: Attribute protocol provides means to transmit data between Bluetooth low energy devices.SM: Security Manager provides means for bonding devices, encrypting and decrypting data, and enabling device privacyGAP: Generic Access Profile layer provides means for Bluetooth low energy devices to advertise themselves or other devices, make device discovery, open and manage connections, and broadcast data.GATT: GATT is used to group individual attributes into logical services GATT also provides information about the attributes, that is, how they can be accessed and what security level is needed.Key Features of Silicon Labs Bluetooth Low Energy StackFeature BenefitCore FeaturesDirection finding, Periodic Advertising with Responses (PAwR), Encrypted Advertising Data (EAD),Advertisement Extensions, Periodic Advertising, LE secure connections, 2M PHY , Long Range, AFH, LE Privacy 1.2 (peripheral), LE packet length extensions, Accept List (central side), GATT, & GATT Caching Scalable AoA Scale to AoA to few hundred devices simultaneouslyCertificate Based Authentication and Pairing (CBAP) Use certificates to authenticate devices before provisioning, thus saving cost and time. Also, prevents counterfeit devices from being provisioned into the networkSilicon Labs Bluetooth stack supports three modes:Standalone mode: Bluetooth stack and the application run in an EFR32SoC or moduleNetwork Co-Processor mode: Bluetooth stack runs on the EFR32, and the application runs on a separate host MCU. API is exposed over a serial interface such as UART.Radio Co-Processor mode: Link layer of the Bluetooth stack runs on the EFR32, and the Host Layer of the stack, as well as the application runs on a separate host MCU or PC. Link Layer and Host Layer communicate via HCI.Technical ResourcesBluetooth Low Energy xG24 Technical Library Data Sheets, App Notes, and moreBluetooth Low Energy xG21 Technical Library Data Sheets, App Notes, and moreBluetooth Low Energy xG22 Technical Library Data Sheets, App Notes, and moreBluetooth Low Energy xG27 Data ShortBluetooth Low Energy API Documentation Bluetooth Low Energy API documentationSilicon Labs’ Bluetooth Low Energy HW supportHigh Performance device for Bluetooth LE and Bluetooth mesh applications thatrequire advance features and more Flash and RAMIndustry-leading, energyefficient device for Bluetooth LE applicationsOptimized for line-powered devices including LED bulbs, and gateways for Bluetooth LE and Bluetooth meshMost Battery Versatile SoC for Connected Health, Smart Home, Portable Products1536kB Flash 256kB RAM TX power 19.5dBm -105.7dBm @ 125kbps -97.6dBm @ 1Mbit/s -94.8dBm @ 2Mbit/s RX current 4.4mA @ 1MbpsTX current 5.0mA @ 0dBm1.3 µA Sleep current (16kB )Robust peripheral set AI/ML hardware accelerator Secure Vault High QFN40 5x5 (26) QFN48 6x6 (32)512kB Flash 32kB RAM TX power 6dBm -106.7dBm @ 125kbps -98.9dBm @ 1Mbit/s -96.2dBm @ 2Mbit/s RX current 3.6mA @ 1MbpsTX current 4.1mA @ 0dBm1.26µA Sleep current (16kB )Lowest Power Bluetooth LESecure Vault Mid QFN40 5x5 (26) QFN32 4x4 (18) TQFN32 4x4 (18)1024kB Flash 96kB RAM TX power 20dBm -104.9dBm @ 125kbps -97.5dBm @ 1Mbit/s -94.4dBm @ 2Mbit/s RX current 8.8mA @ 1MbpsTX current 9.3mA @ 0dBm+135 Junc. Temperature Secure Vault High Line-Powered Bluetooth LE QFN32 4x4 (20)768kB Flash 64kB RAM TX power 8dBm -106.9dBm @ 125kbps -99.2dBm @ 1Mbit/s -96.3dBm @ 2Mbit/s RX current 3.6mA @ 1Mbps TX current 4.1mA @ 0dBm 1.26µA Sleep current (16kB ) Secure Vault Mid QFN40 5x5 (26) QFN32 4x4 (18) TQFN32 4x4 (18)Bluetooth LE Target Applications• ESL • Medical• Direction Finding • Smart Home • Smart Tags • Sensors • Switches• Building Automation • HVACBluetooth LE Software / ToolsSilicon Labs Bluetooth Low Energy SDK helps you build smooth, reliable, and secure wireless connectivity for your IoT applications. Software and Tools features • Supports Bluetooth™ LE 5.4 • Wi-Fi Coexistence • Simplicity Studio IDE • GATT Configurator • Network Analyzer • Direction Finding Tool Suite • Bluetooth NCP Commander • Proprietary Radio Configurator • Energy Profiler • Tool Chain – GCC and IARLinks: Bluetooth Low Energy SDKLearning CenterReady for Bluetooth 5.4?Learn more about the latest specification Bluetooth Direction FindingBluetooth Location Services: AoA/AoD Why EFR?Silicon Labs EFR32 FeaturesSilicon Labs Secure Vault accreditations Product security certificationsBluetooth SoC and Module Selector Guide Bluetooth Low Energy Selector Guide Case Study: Rethinking Epilepsy Management EFR32 Portable Medical DeviceBluetooth BeaconsBluetooth Beacons and AdvertisingSilicon Labs’ Bluetooth LE Development KitsSilicon Labs’ Bluetooth development kits are divided into three categories based on your development need:• Rapid Prototyping • Proof of Concept• Advanced RF DevelopmentFor more information on the portfolio, check the link: https:///bluetooth-kitsBG22 BG21 BG24 BG27Disclaimer: Silicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available forsystem and software implementers using or intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and “Ty pical ” parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes without further notice to the product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Without prior notification, Silicon Labs may update product firmware during the manufacturing process for security or reliability reasons. Such changes will not alter the specifications or the performance of the product. Silicon Labs shall have no liability for the consequences of use of the information supplied in this document. This document does not imply or expressly grant any license to design or fabricate any integrated circuits. The products are not designed or authorized to be used within any FDA Class III devices, applications for which FDA premarket approval is required or Life Support Systems without the specific written consent of Silicon Labs. A “L ife Support System ” is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant personal injury or death. Silicon Labs products are not designed or authorized for military applications. Silicon Labs products shall under no circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons. Silicon Labs disclaims all express and implied warranties and shall not be responsible or liable for any injuries or damages related to use of a Silicon Labs product in such unauthorized applications. Note: This content may contain offensive terminology that is now obsolete. Silicon Labs is replacing these terms with inclusive language wherever possible. For more information, visit /about-us/inclusive-lexicon-projectTrademark InformationSilicon Laboratories Inc.®, Silicon Laboratories ®, Silicon Labs ®, SiLabs ® and the Silicon Labs logo ®, Bluegiga ®, Bluegiga Logo ®, EFM ®, EFM32®, EFR, Ember ®, Energy Micro, Energy Micro logo and combinations thereof, “the world ’s most energy friendly microcontroller s”, Redpine Signals ®, WiSeConnect , n-Link, ThreadArch ®, EZLink ®, EZRadio ®, EZRadioPRO ®, Gecko ®, Gecko OS, Gecko OS Studio, Precision32®, Simplicity Studio ®, Telegesis, the Telegesis Logo ®,USBXpress ®, Zentri, the Zentri logo and Zentri DMS, Z-Wave ®, and others are trademarks or registered trademarks of Silicon Labs. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings. Keil is a registered trademark of ARM Limited. Wi-Fi is a registered trademark of the Wi-Fi Alliance. 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