Cortez OSD Message Handling

arm cortex a7 运行ipsec 消耗的mips -回复题目：ARM Cortex A7运行IPSec所消耗的MIPS引言：ARM Cortex A7是一款高效能的低功耗处理器，被广泛运用于智能手机、平板电脑和物联网设备等领域。

IPSec（Internet Protocol Security）是一种常见的网络协议，用于对数据进行安全加密和认证。

本文将重点讨论在ARM Cortex A7处理器上运行IPSec所消耗的MIPS（Millions of Instructions Per Second），并逐步解析该过程。

第一部分：ARM Cortex A7处理器架构简介ARM Cortex A7是ARM公司推出的一款32位RISC处理器，采用了最先进的技术和架构特征。

它具备以下几个关键特点：1. 低功耗：Cortex A7采用了Power Management Unit（PMU）技术，能够灵活地调整供电电压和频率，以节省能源。

2. 高性能：Cortex A7处理器拥有高达1.9 DMIPS/MHz的性能，通过针对每个应用进行优化，可提供出色的性能效果。

第二部分：IPSec协议基本原理IPSec协议是一种用于保护IP数据包的安全性的协议套件，包括加密、认证和完整性检查等功能。

它可以在IP层对数据进行加密处理，确保数据在传输过程中不被篡改或窃听。

第三部分：ARM Cortex A7上的IPSec实现在ARM Cortex A7上运行IPSec需要进行一系列的操作，包括启动IPSec、数据加密/解密和认证处理，并在数据传输的每个阶段进行相应的计算。

这些操作将消耗一定的MIPS。

1. 启动IPSec在ARM Cortex A7上启动IPSec需要执行一些初始化指令，如加密算法的参数配置、密钥的生成和保存等。

这些指令的执行会消耗一定的MIPS。

2. 数据加密/解密IPSec协议使用一系列的加密算法来保护数据的机密性，如AES （Advanced Encryption Standard）和3DES（Triple Data Encryption Standard）等。

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首页阅览室馆友我的图书馆帐号软件框架研究转：2 | 来源| 分享Netra（DM8168）处理器是个多核处理器，每个核之间相互独立却又相互关联，如何高效简洁地利用每个核完成一套系统功能是非常关键的，RDK这套软件平台就是针对这种多核平台设计的一套多通道视频应用方案，主要用于DVR、NVR、IPNC之类的产品。

这个软件框架结构允许用户创建不同的多路数据流来实现视频的采集、视频处理（DEI、Noise Filter、Encode、Decode、SwMs、Merge等）和视频播放功能，其框架设计非常值得学习。

以下为相关缩写解释：*************************************************最新文章侯宝林大师相声精选35段男人.女人侃谈常识篇--龙的常识：正在生长的龙的别...超多的书信折纸方法，包你过瘾小学语文必会基础知识古代历史中的男风典故更多热门文************************************************* ***HDVPSS：High Definition Video Processing Subsystem HDVICP：High Definition Video and Image CoProcessor Ducati：Dual Core M3 Processors controlling HDVPSS and HDVICP hardware enginesVideo M3：ARM Cortex M3 Core（inside Ducati subSystem）controlling HDVICP codecsVPSS M3：ARM Cortex M3 Core（inside Ducati subSystem）controlling HDVPSS，also called DSS M3DEI：DeinterlacerMcFW：Multi Channel FrameworkIPC：Inter Processor Communication************************************************* ************************************************* ****1、Rdk平台软件框架图在Rdk平台软件中做了很好的分层，如下图所示：注意：上图中核间通过Syslink/IPC通信，任意2个核之间都可以直接通信，是一个星型网络，上图画的连接关系描述的是对等层次的概念。

DM365-OSD小结1、OSD线程的流程OSD的功能就是在视频上显示预定的内容，视频是由一帧一帧的图像组成的，因此OSD 的作用就是在每一帧上打上印记。

OSD的流程如图1所示：图1关于有帧消息的发送：当有一个新的帧产生的时候，通过调用该函数发送新数据消息命令。

int VIDEO_swosdRun(int tskId, int streamId, OSA_BufInfo *pBufInfo)该消息命令的数据结构：typedef struct _videoSWOSDMessage{int streamId; //对应的码流OSA_BufInfo *pBufInfo; //这里有帧的数据}videoSWOSDMessage;2、OSD环境的创建OSD环境的创建，包括初始化、字体的设置、创建句柄以及窗口数目的划分、窗口有参数的设置、字符转化成YUV格式。

初始化：在调用其他的OSD函数之前，一定要调用SWOSD_init函数完成初始化，返回0成功，-1失败。

int SWOSD_init();字体的设置：字体的设置，就像doc设置字体一个意思，至于为什么这么操作，不清楚。

照着例子来吧。

SWOSD_Fontdata为字体的数据结构体。

SWOSD_createFontDatabase函数的意思，大概就是把能够显示的字符按照fontAddr的格式转化成YUV格式存放在fontDB中。

typedef struct {char format; //视频的格式YUV420p还是YUV422iint charWidth; //字符的宽度int charHeight; //字符的高度int totFontWidth;int totFontHeight;int totFontLineoffset;char *fontAddr; //字体对应YUV格式数据的存储char *fontAddrUV;int * fontDB_Y;//所有能够显示字符的YUV格式int * fontDB_UV;} SWOSD_Fontdata;int SWOSD_createFontDatabase(int* fontDatabaseY, int* fontDatabaseUV,char * swosd_stringPattern, SWOSD_Fontdata * fontInfo);#define SWOSD_STRINGPA TTERN"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz:;'/\\+-_()&$#.0123456789"下面是一个设置字体的例子eg:SWOSD_Fontdata fontInfo;fontInfo.format = SWOSD_FORMA TYUV420p;fontInfo.charWidth = SWOSD_CHARWIDTH_462_12;fontInfo.charHeight = SWOSD_CHARHEIGHT_462_12;fontInfo.totFontWidth = SWOSD_STRINGWIDTH_462_12;fontInfo.totFontHeight = SWOSD_CHARHEIGHT_462_12;fontInfo.totFontLineoffset = SWOSD_STRINGWIDTH_462_12;fontInfo.fontAddr = fontBuff462_Y1;fontInfo.fontAddrUV = fontBuff462_UV1;SWOSD_createFontDatabase(fontDB462_Y1,fontDB462_UV1,(char *)SWOSD_STRINGPA TTERN,&fontInfo);创建句柄以及窗口数的划分：通常为了控制码流，一般视频会有多个码流，每个码流显示的内容一样，只是有的像素高，有的像素低。

采购需求（仅供参考）前注：1、本说明中提出的技术方案仅为参考，如无明确限制，供应商可以进行优化，提供满足用户实际需要的更优（或者性能实质上不低于的）技术方案或者设备配置，且此方案或配置须经谈判小组评审认可；2、为鼓励不同品牌的充分竞争，如某设备的某技术参数或要求属于个别品牌专有，则该技术参数及要求不具有限制性，供应商可对该参数或要求进行适当调整，且此调整须经谈判小组评审认可；3、为有助于供应商选择谈判产品，项目说明中可能提供了推荐品牌（或型号）、参考品牌（或型号）等，这些品牌（或型号）仅供参考，并无限制性。

供应商可以选择性能不低于推荐（或参考）的品牌（或型号）的其他产品；4、供应商应当在响应文件中列出完成本项目并通过验收所需的全部费用。

成交供应商必须确保整体通过用户方及有关主管部门验收,所发生的验收费用由成交供应商承担；如供应商因未及时踏勘现场而导致的报价缺项漏项废标、或成交后无法完工，供应商自行承担一切后果；5、根据《关于规范政府采购进口产品有关工作的通知》及政府采购管理部门的相关规定，下列采购需求中如涉及进口产品则已履行相关论证手续，经核准采购进口设备，但不限制满足谈判文件要求的国内产品参与竞争；6、在采购活动开始前没有获准采购进口产品而开展采购活动的，视同为拒绝采购进口产品；7、下列采购需求中：标注▲的产品，供应商在响应文件《主要成交标的承诺函》中填写名称、规格、型号、数量、单价等信息，承诺函随成交结果一并公告；8、单一产品采购项目中，提供同一品牌产品的不同供应商参加同一包别下谈判的，以一家供应商计算有效供应商数量。

非单一产品采购项目中，提供标注▲的产品均为同一品牌的不同供应商参加同一包别下谈判的，以一家供应商计算有效供应商数量；9、如对本谈判文件有任何疑问或澄清要求，请按本谈判文件“供应商须知前附表”中约定方式联系安徽省政府采购中心，或在接受答疑截止时间前联系采购人，否则视同理解和接受，供应商对谈判文件、采购过程、成交结果的质疑，应当在法定质疑期内一次性提出针对同一采购程序环节的质疑；10、★条款须满足或优于谈判文件要求，否则响应无效；非★条款由谈判小组讨论后酌情评审。

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研华提供了全系列功能完备的人机界面产品，包括：工业级可编程人机界面（WebOP）、工业平板电脑（TPC&PPC）、产线自动化平板电脑（SPC）和工业显示器（FPM）,同时，研华提供高价值标准化产品及解决方案和灵活的客制化产品，以满足工业应用的高质量需求，例如油气行业专用和阳光下可视化产品等。

此外，研华工业平板电脑及人机界面可通过集成I/O与带控制功能的HMI/SCADA软件，实现多种系统集成，开启自动化的新纪元。

18.5”WXGA/21.5”全高清TFT LCD，搭配AMD双核处理器多点触控工业等级平板电脑• AMD双核T56E，1.65GHz，支持外接APU，先进的图形处理性能 ，运行更高效• 16:9宽屏，带PCT多点触控• 内置智能键和功能键及定制化UI• 打开侧面板，轻松维护Cfast/HDD/Mini PCIe部件• 前面板LED指示灯显示操作状态7”WVGA Cortex™-A8 宽温可编程人机界面· Microsoft® Windows CE 6.0• 支持无电池状态下128KB(64字)FRAM储存备份• 电源&终端I/O串口隔离保护• -20~ 60ºC 宽操作温度• 前面板达IP66防护等级5.7”VGA/12.1”SVGA/15”XGA/17”SXGATFT LED LCD英特尔凌动瘦客户端• Intel®Atom™ N270 1.6GHz 处理器• 前面板IP65防护等级• 支持Microsoft® Windows XP/XPe/CE系统• 能源之星认证• 支持外接2.5”SATA HDD套件3.5”/5.7”QVGA TI AM3517 600MHz基于RISC触摸平板电脑• Microsoft®Windows CE 6.0• 1X SD卡槽，便于储存• 前面板达IP66防护等级• 超薄紧凑设计，搭配塑料外壳无风扇冷却系统• 自动数据流控制RS-4855.7”VGA/12.1”SVGA/15”XGA TFT LED LCD英特尔凌动瘦客户端，宽操作温度• Intel® Atom™ Z520 1.33 GHz处理器• -20~60ºC 宽操作温度• 串口隔离保护• 能源之星认证• 支持外接2.5”SATA HDD套件10.1” WSVGA Cortex™-A8 宽温可编程人机界面· Microsoft®Windows CE 6.0• 支持无电池状态下128KB(64字)FRAM储存备份• 电源&终端I/O串口隔离保护• -20~ 60ºC宽操作温度• 前面板达IP66防护等级15”XGA Cortex™-A8 宽温可编程人机界面· Microsoft® Windows CE 6.0• 支持无电池状态下128KB(64字)FRAM储存备份• 电源&终端I/O串口隔离保护• -20~ 60ºC宽操作温度• 前面板达IP66防护等级18.5”WXGA/21.5”全高清TFT LCD，搭配AMD双核处理器产线自动化多点触控工业等级平板电脑• AMD双核，1.65GHz，支持外接APU，先进的图形处理性能，运行更高效• 16:9宽屏，带PCT多点触控• 内置智能键和功能键及定制化UI• 抗划痕触摸表面：7级硬度• 带有IP65防护等级M12连接器• 前面板LED指示灯显示操作状态明星产品指南TPC-1071HPB/1271HPB/1571HPB/1771HPB TPC-1071HCA/1271HCA/1571HCA/1771HCA TPC-671H TPC-1571HTPC-1771H TPC-1071H/1271HWebOP-2040T WebOP-2100T WebOP-2080T 可编程人机界面控制平板电脑8”SVGA工业级可编程人机界面• 8”SVGA 65，536色真彩TFT LCD， 采用ARM9-based RISC高效能处理器• 前面板IP66防护等级• 10W低功耗设计• 支持300多种PLC工业通讯协议• 下载和保护灵活运行10.4”SVGA/ 12.1”SVGA/ 15”XGA/ 17”SXGA TFT LED LCD 英特尔凌动双核D525嵌入式平板电脑• Profibus总线支持• 兼容赫优讯 • 支持研华设计制造的profibus模块• 更完整可靠的验证平台及服务• 延续TPC-1071H/1271H/1571H/1771H 系列功能10.4”/12.1” SVGA TFT LCD 英特尔凌动双核D525嵌入式平板电脑• DDR3内存和多个I/O支持• PCIe及Mini PCIe扩展，便于工业无线现场总线控制• 内置数字量输入/输出模块• 串口及DI/DO隔离保护• 电池备份1MB SRAM 15”XGA TFT LCD 英特尔凌动双核D525嵌入式平板电脑• DDR3内存和多个I/O支持• PCIe及Mini PCIe扩展，便于工业无线现场总线控制• 内置数字量输入/输出模块• 串口及DI/DO隔离保护• 电池备份1MB SRAM 17”SXGA TFT LCD 英特尔凌动双核D525嵌入式平板电脑• DDR3内存和多个I/O支持• PCIe及Mini PCIe扩展，便于工业无线现场总线控制• 内置数字量输入/输出模块• 串口及DI/DO隔离保护• 电池备份1MB SRAM 10.4”SVGA/ 12.1”SVGA/ 15”XGA/ 17”SXGA TFT LED LCD英特尔双核D525嵌入式平板电脑• CIA认证CANopen模块和平台• 高速传输，速度最高可达1Mbps • 支持研华设计制造的profibus模块• 更完整可靠的验证平台及服务• 延续TPC-1071H/1271H/1571H/1771H 系列功能6.5”VGA LED LCD英特尔凌动Z510嵌入式平板电脑• Mini PCIe扩展，便于工业无线现场总线控制• 串口隔离保护• 自动数据流控制RS-485• 支持Microsoft ® WES7/XP/WES/WinCE系统• 10.1” WSVGA 65，536色真彩TFT LCD， 采用ARM9-based RISC高效能处理器• 前面板IP66防护等级• 10W低功耗设计• 支持300多种PLC工业通讯协议• 下载和保护灵活运行• 12.1” SVGA 65，536色真彩TFT LCD， 采用ARM9-based RISC高效能处理器• 前面板IP66防护等级• 10W低功耗设计• 支持300多种PLC工业通讯协议• 下载和保护灵活运行产品指南4.3”WQVGA工业级可编程人机界面• 4.3”WQVGA 65，536色真彩TFT LCD， 采用ARM9-based RISC高效能处理器• 前面板IP66防护等级• 10W低功耗设计• 支持300多种PLC工业通讯协议• 下载和保护灵活运行PPC-157/177PPC-6150/6170PPC-179IPPC-6192A/6172A/6152A IPPC-9151G/9171GIPPC-4001D/4008D FPM-5151G/5171G/5191G PPC-3100/3120FPM-3151G/3171G/3191G PPC-L62T FPM-2120G/2150G/2170G PPC-L158无风扇平板电脑多功能平板电脑工业平板电脑工业显示器10.4”/12”无风扇工业平板电脑，英特尔凌动D2550处理器 • TFT SVGA LED面板，搭配电阻触摸屏• 支持1个内部SATA 2.5存硬盘及1个mSATA接口• 可通过BIOS调节RS-232/422/485连接• COM1/COM2 pin9 RI/5V/12V可选择通过BIOS设定• 提供自动调校LED背光功能15”无风扇工业平板电脑，英特尔凌动D525处理器• 15”TFT XGA LCD 搭配可选的电阻式触摸屏• 支持1个内部的SATA 2 .5”硬盘，支持1个 Mini PCIe 插槽，双千兆以太网• 可选PCI/PCIe x1扩展组件• 1个RS -2 32/422/ 485端口;（支持自动数据流控制， BIOS可选）• 1个GPIO/RS-232 (8 通道, TTL 级); (通过排针交换）,15”/ 17”无风扇工业平板电脑，英特尔酷睿双核处理器• Intel ® Core ™2 Duo 处理器，最高可达2.16 GHz • 系统内存高达4GB 667 MHz DDR2 SODIMM • 1个PCIe扩展插槽(PCI可选)• 1个RS -232/422/ 485端口;（支持自动数据流控制， BIOS可选）• 1个RS-232/GPIO (8通道， 提供TTL)(通过调换排针) 5.7”VGA TFT LCD 4U 19”/19” Half-size机架式工业等级平板电脑• 可固定的抽屉式超薄键盘&鼠标• 支持高性能Intel ® Core ™2双核处理器• 提供14/8扩展插槽，满足2 PICMG,10 PCI,2ISA/1 CPU PCI,3 PCI,4 SPCI • 带有防水功能薄膜的功能键(F1—F5)，便于各种应用• 前端USB端口便于安插多种USB设备12”SVGA/15”XGA/17”SXGA工业显示器，带有抗反射触摸屏及Direct-VGA串口• 12”SVGA/15”XGA/17”SXGA TFT LCD LED 背光液晶显示• 铝制前面板，坚固设计• 前面板IP65防护等级• 带有RS-232 & USB接口15”XGA / 17” SXGA / 19” SXGA工业显示器，带抗反射触摸屏，Direct-VGA和DVI串口• 坚固不锈钢设计，铝合金前面板• 前面板OSD控制键• 支持工业24V DC 电源输入• 支持前面板，壁挂，台式，机架或VESA悬臂安装• 前面板IP65防护等级15” XGA / 17” SXGA / 19” SXGA多功能工业显示器，带抗反射触摸屏，Direct-VGA及DVI串口• Direct VGA & DVI-D视频输入接口• 可锁固OSD功能键，支持2组用户自定义对比度/亮度• 坚固不锈钢设计，铝合金前面板• 带有RS-232 & USB接口19”SXGA/17” SXGA/15” XGA TFT LCD 酷睿四核/酷睿双核处理器工业等级扩展型平板电脑• Intel ® Core ™ 2 Quad CPU (最高支持 2.8 GHz)/ Core ™ 2 Duo CPU (最高支持 3.0 GHz)• 双通道DDR3内存，容量高达4GB • 提供2个PCIe扩展槽• 双千兆以太网，Intel vPro技术• 提供2 x 2.5” SATA HDDs和RAID 0/1兼容15” XGA/17” SXGA 英特尔酷睿 i7/i5/i3赛扬处理器工业等级强固型平板电脑• 15” XGA /17” SXGA LED背光LCD，低功耗 ， 前面 板提供USB接口, 支持1 x PCIe x 1或4(Gen2)• 带铝合金前面板的高强度不锈钢机箱，IP65防护等级， 确保设备的可靠运行• 支持双HDMI, LVDS, VGA显示; 1 x 2.5”SATA II或 III HDD和1 x CFast• 硬质阳极涂层以防止板磨损和酸腐蚀17”无风扇工业电脑英特尔双核处理器• Intel ® Core ™2 Duo LGA775 处理器， 最高可达3.0GHz • 支持240-pin DDR3 1333/1066 DIMM x 2， 最高可达4GB • 支持1个 Mini PCIe插槽，双千兆以太网• 提供1个PCI和1个PCIe扩展插槽• 1个RS -2 32/422/ 485端口;（支持自动数据流控制， BIOS可选）15”/17”无风扇平板电脑，英特尔酷睿i3 / i5 /赛扬处理器• Intel ® Core ™ i3，i5和 Celeron ® 847E + Intel QM77 PCH • 多种扩展插槽支持， PCIe x 4, 1 PCI + 1 PCIe x 1• 可选备份 HDD, 支持 Intel RAID • 1个独立的 RS-232/422/485 端口; (自动流控制，由 BIOS选择）• 1个GPIO/RS-232 (8 通道, TTL 级); (通过排针交换）,双千兆以太网, 支持Intel AMT8.04 6.5”无风扇工业平板电脑，英特尔凌动处理器• 6.5” TFT VGA LCD，带LED背光灯• 系统内存高达2 GB DDR3• 铝质前面板设计• 支持双千兆以太网• 支持1个CFast 插槽• 可通过BIOS调节RS-232/422/485连接产品指南PCIE-1730PCIE-1752/1754/1756PCIE-1760USB-4702/4704USB-4711A/4716USB-4761PCI-1712PCI-1716PCI-1706/1714/1714L PCIE-1744PCI和PCIE数据采集&控制卡windows 7和windows 8操作系统，助力用户将研华的数据采集卡无缝地集成到最新平台,不仅提高了性能,也大大减少了开发时间。

ADAS 和 ADAS 方案ADAS sensor used mainly cameras, radar, laser and ultrasound, can detect light, heat, pressure or other variables used in monitoring the condition of the car, usually located in the vehicle front and rear bumpers, side mirror, a steering column or the interior windshield on the glass. Early ADAS technology based mainly passive alarm when the vehicle detects a potential hazard, alerts to remind motorists to pay attention to unusual vehicles or road conditions.ADAS systems typically include the following:从市场层面上看，目前和未来的ADAS应用的共同之处是将多种摄像头和超声传感器与专用实时处理系统相结合。

而Zynq-7000在视频/影像捕捉；视频/影像处理；自定义算法/Accelerators连接功能；编码/解码领域具有极大的灵活性。

2. ADI 低、中、高档视觉ADAS解决方案ADI基于视觉的ADAS系统提供车道偏离警告、交通信号识别、智能前灯控制、物体检测/分类、行人检测等功能。

基于雷达的系统具有类似的功能，此外还可提供前/后停车帮辅助、安全车距预警、车道变换辅助、盲点检测、碰撞缓冲刹车系统、全速范围自适应巡航控制等功能。

ADAS技术目前基本应用在高端车型中，主因是总体成本高，就ADI的高、中、低端汽车ADAS方案针对某一项或几项技术进行实现，并把成本降到2美元、十几美元，对整车厂商及消费者无疑是一大好消息，也为加速ADAS普及贡献了一份力量。

G Series LCD MonitorG244F E2 (3BB4) G244PF E2 (3BB4) User GuideContentsGetting Started (3)Package Contents (3)Installing the Monitor Stand (4)Adjusting the Monitor (6)Monitor Overview (8)Connecting the Monitor to PC (11)OSD Setup (13)Navi Key (13)Hot Key (14)OSD Menus (15)Gaming (15)Professional (17)Image (18)Input Source (19)Navi Key (19)Setting (20)Specifications (22)Preset Display Modes (24)Troubleshooting (25)Safety Instructions (26)TÜV Rheinland Certification (28)Regulatory Notices (29)RevisionV1.0, 2023/09Getting StartedThis chapter provides you with the information on hardware setup procedures. While connecting devices, be careful in holding the devices and use a grounded wrist strap to avoid static electricity.∙Contact your place of purchase or local distributor if any of the items is damaged or missing.∙Package contents may vary by country.∙The included power cord is exclusively for this monitor and should not be used with other products.Installing the Monitor Stand1. Leave the monitor in its protective packaging. Align the stand bracket to the monitor groove.2. Tighten the stand bracket with screws.3. Connect the base to the stand and tighten the base screw to secure the base.4. Make sure the stand assembly is properly installed before setting the monitor upright.G244F E2G244PF E2Important ∙Place the monitor on a soft, protected surface to avoid scratching the display panel. ∙Do not use any sharp objects on the panel. ∙The groove for installing the stand bracket can also be used for wall mount. Please contact your dealer for proper wall mount kit. ∙This product comes with NO protective film to be removed by the user! Any mechanical damages to the product including removal of the polarizing film mayAdjusting the MonitorThis monitor is designed to maximize your viewing comfort with its adjustment capabilities.⚠ImportantAvoid touching the display panel when adjusting the monitor.G244F E2G244PF E2Monitor Overview G244F E2G244PF E2Connecting the Monitor to PC1. Turn off your computer.2. Connect the video cable from the monitor to your computer.3. Assemble the external power supply & power cord. (Figure A)4. Connect the external power supply to the monitor power jack. (Figure B)5. Plug the power cord into the electrical outlet. (Figure C)6. Turn on the monitor. (Figure D)7. Power on the computer and the monitor will auto detect the signal source. G244F E2G244PF E2OSD SetupThis chapter provides you with essential information on OSD Setup.⚠ImportantAll information is subject to change without prior notice.Navi KeyThe monitor comes with a Navi Key, a multi-directional control that helps navigate the On-Screen Display (OSD) menu.G244F E2G244PF E2Up/Down/Left/Right:∙selecting function menus and items∙adjusting function values∙entering into/exiting from function menusPress (OK):∙launching the On-Screen Display (OSD)∙entering submenus∙confirming a selection or settingHot Key∙Users may enter into preset function menus by moving the Navi Key up, down, left or right when the OSD menu is inactive.∙Users may customize their own Hot Keys to enter into different function menus.OSD Menus⚠ImportantThe following settings will be grayed out when HDR signals are received:∙Night Vision ∙MPRT∙Low Blue Light∙HDCR ∙Brightness ∙Contrast3.0A 3.0A* Based on CIE1976 test standards.Preset Display Modes ImportantTroubleshootingThe power LED is off.• Press the monitor power button again.• Check if the monitor power cable is properly connected.No image.• Check if the computer graphics card is properly installed.• Check if the computer and monitor are connected to electrical outlets and are turned on.• Check if the monitor signal cable is properly connected.• The computer may be in Standby mode. Press any key to activate the monitor. The screen image is not properly sized or centered.• Refer to Preset Display Modes to set the computer to a setting suitable for the monitor to display.No Plug & Play.• Check if the monitor power cable is properly connected.• Check if the monitor signal cable is properly connected.• Check if the computer and graphics card are Plug & Play compatible. The icons, font or screen are fuzzy, blurry or have color problems.• Avoid using any video extension cables.• Adjust brightness and contrast.• Adjust RGB color or tune color temperature.• Check if the monitor signal cable is properly connected.• Check for bent pins on the signal cable connector.The monitor starts flickering or shows waves.• Change the refresh rate to match the capabilities of your monitor.• Update your graphics card drivers.• Keep the monitor away from electrical devices that may cause electromagnetic interference (EMI).Safety Instructions∙Read the safety instructions carefully and thoroughly.∙All cautions and warnings on the device or User Guide should be noted.∙Refer servicing to qualified personnel only.Power∙Make sure that the power voltage is within its safety range and has been adjusted properly to the value of 100~240V before connecting the device to the power outlet. ∙If the power cord comes with a 3-pin plug, do not disable the protective earth pin from the plug. The device must be connected to an earthed mains socket-outlet.∙Please confirm the power distribution system in the installation site shall provide the circuit breaker rated 120/240V, 20A (maximum).∙Always disconnect the power cord or switch the wall socket off if the device would be left unused for a certain time to achieve zero energy consumption.∙Place the power cord in a way that people are unlikely to step on it. Do not place anything on the power cord.∙If this device comes with an adapter, use only the MSI provided AC adapter approved for use with this device.Environment∙To reduce the possibility of heat-related injuries or of overheating the device, do not place the device on a soft, unsteady surface or obstruct its air ventilators.∙Use this device only on a hard, flat and steady surface.∙To prevent the device from tipping over, secure the device to a desk, wall or fixed object with an anti-tip fastener that helps to properly support the device and keep it safe in place.∙To prevent fire or shock hazard, keep this device away from humidity and high temperature.∙Do not leave the device in an unconditioned environment with a storage temperature above 60℃ or below -20℃, which may damage the device.∙The maximum operating temperature is around 40℃.∙When cleaning the device, be sure to remove the power plug. Use a piece of soft cloth rather than industrial chemical to clean the device. Never pour any liquid into the opening; that could damage the device or cause electric shock.∙Always keep strong magnetic or electrical objects away from the device.∙If any of the following situations arises, get the device checked by service personnel:• The power cord or plug is damaged.• Liquid has penetrated into the device.• The device has been exposed to moisture.• The device does not work well or you can not get it working according to the User Guide.• The device has dropped and damaged.• The device has obvious sign of breakage.TÜV Rheinland CertificationTÜV Rheinland Low Blue Light CertificationBlue light has been shown to cause eye fatigueand discomfort. MSI now offers monitors with TÜVRheinland Low Blue Light certification to ensureusers’ eye comfort and well-being. Please followthe instructions below to reduce the symptoms fromextended exposure to the screen and blue light.∙Place the screen 20 – 28 inches (50 – 70 cm) away from your eyes and a little below eye level.∙Consciously blinking the eyes every now and then will help to reduce eye strain after extended screen time.∙Take breaks for 20 minutes every 2 hours.∙Look away from the screen and gaze at a distant object for at least 20 seconds during breaks.∙Make stretches to relieve body fatigue or pain during breaks.∙Turn on the optional Low Blue Light function.TÜV Rheinland Flicker Free Certification∙TÜV Rheinland has tested this product toascertain whether the display produces visibleand invisible flicker for the human eye andtherefore strains the eyes of users.∙TÜV Rheinland has defined a catalogue oftests, which sets out minimum standardsat various frequency ranges. The test catalogue is based on internationally applicable standards or standards common within the industry and exceeds these requirements.∙The product has been tested in the laboratory according to these criteria.∙The keyword “Flicker Free” confirms that the device has no visible and invisible flicker defined in this standard within the range of 0 - 3000 Hz under various brightness settings.∙The display will not support Flicker Free when Anti Motion Blur/MPRT is enabled. (The availability of Anti Motion Blur/MPRT varies by products.)Regulatory NoticesCE ConformityThis device complies with the requirements set out in the Council Directive on the Approximation of the Laws of the Member States relating to Electromagnetic Compatibility (2014/30/EU), Low-voltage Directive (2014/35/EU), ErP Directive (2009/125/EC) and RoHS directive (2011/65/EU). This product has been tested and found to comply with the harmonized standards for Information Technology Equipment published under Directives of Official Journal of the European Union.FCC-B Radio Frequency Interference StatementThis equipment has been tested and found to comply with the limitsfor a Class B digital device, pursuant to Part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, ifnot installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the measures listed below:∙Reorient or relocate the receiving antenna.∙Increase the separation between the equipment and receiver.∙Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.∙Consult the dealer or an experienced radio/television technician for help. Notice 1The changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Notice 2Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission limits.This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:1. This device may not cause harmful interference, and2. This device must accept any interference received, including interference that may cause undesired operation.MSI Computer Corp.901 Canada Court, City of Industry, CA 91748, USA(626) 913-0828WEEE StatementUnder the European Union (“EU”) Directive on Waste Electrical and Electronic Equipment, Directive 2012/19/EU, products of “electrical and electronic equipment” cannot be discarded as municipal waste anymoreand manufacturers of covered electronic equipment will be obligated totake back such products at the end of their useful life. Chemical Substances InformationIn compliance with chemical substances regulations, such as the EU REACH Regulation (Regulation EC No. 1907/2006 of the European Parliament and the Council), MSI provides the information of chemical substances in products at: https:///global/indexRoHS StatementJapan JIS C 0950 Material DeclarationA Japanese regulatory requirement, defined by specification JIS C 0950, mandates that manufacturers provide material declarations for certain categories of electronic products offered for sale after July 1, 2006.https:///global/Japan-JIS-C-0950-Material-Declarations India RoHSThis product complies with the “India E-waste (Management and Handling) Rule 2016” and prohibits use of lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated diphenyl ethers in concentrations exceeding 0.1 weight % and 0.01 weight % for cadmium, except for the exemptions set in Schedule 2 of the Rule. Turkey EEE RegulationConforms to the EEE Regulations of the Republic Of Turkey Ukraine Restriction of Hazardous SubstancesThe equipment complies with requirements of the Technical Regulation, approved by the Resolution of Cabinet of Ministry of Ukraine as of 10 March 2017, № 139, in terms of restrictions for the use of certain dangerous substances in electrical and electronic equipment.Vietnam RoHSAs from December 1, 2012, all products manufactured by MSI comply with Circular 30/2011/TT-BCT temporarily regulating the permitted limits for a number of hazardous substances in electronic and electric products.31Green Product Features∙Reduced energy consumption during use and stand-by ∙Limited use of substances harmful to the environment and health∙Easily dismantled and recycled ∙Reduced use of natural resources by encouraging recycling ∙Extended product lifetime through easy upgrades ∙Reduced solid waste production through take-back policy Environmental Policy ∙The product has been designed to enable proper reuse of parts and recycling and should not be thrown away at its end of life. ∙Users should contact the local authorized point of collection for recycling and disposing of their end-of-life products. ∙Visit the MSI website and locate a nearby distributor for further recycling information. ∙*******************************************************************disposal, take-back, recycling, and disassembly of MSI products.Warning!Overuse of screens is likely to affect eyesight.Recommendations: 1. Take a 10-minute break for every 30 minutes of screen time. 2. Children under 2 years of age should have no screen time. For children aged 2 years and over, screen time should be limited to less than one hour per day.Copyright and Trademarks Notice Copyright © Micro-Star Int’l Co., Ltd. All rights reserved. The MSI logo used is a registered trademark of Micro-Star Int’l Co., Ltd. All other marks and names mentioned may be trademarks of their respective owners. No warranty as to accuracy or completeness is expressed or implied. MSI reserves the right to make changes to this document without prior notice.The terms HDMI™, HDMI™ High-Definition Multimedia Interface, HDMI™ Trade dress and the HDMI™ Logos are trademarks or registered trademarks of HDMI™ Licensing Administrator, Inc.Technical Support If a problem arises with your product and no solution can be obtained from the user’s manual, please contact your place of purchase or local distributor. Alternatively,please visit https:///support/ for further guidance.。

计算机三级（嵌入式系统开发技术）机试-试卷6(总分122,考试时间90分钟)1. 选择题1. 与个人计算机(PC)相比，嵌入式系统具有许多不同的特点。

下面不属于嵌入式系统特点的是( )。

A. 嵌入式系统与具体应用紧密结合，具有很强的专用性B. 嵌入式系统通常包含在非计算机设备(系统)中，具有隐蔽性C. 嵌入式系统的软硬件资源往往受到严格的限制D. 嵌入式系统性能较低，价格也比较便宜2. 嵌入式系统中的CPU具有一些与通用计算机所使用的CPU不同的特点，下面不是其特点的是( )。

A. 支持实时处理B. 低功耗C. 高主频D. 集成了测试电路3. 嵌入式系统使用的片上系统英文缩写名为SoC，下面关于SoC叙述中错误的是( )。

A. SoC也称为系统级芯片，它是电子设计自动化水平的提高和集成电路制造技术飞速发展的产物B. SoC芯片中既包含数字电路，也可以包含模拟电路，甚至还能包含数字／模拟混合电路和射频电路C. SoC将嵌入式系统的几乎全部功能都集成在一块芯片中，单个芯片就能实现数据的采集、转换、存储、处理和I／O等多种功能D. SoC的设计制造难度很大，目前还没有得到广泛使用4. 微电子技术特别是集成电路制造技术是嵌入式系统发展的重要基础，下面关于集成电路的叙述中错误的是( )。

A. 集成电路的集成度指的是单个集成电路所含电子元件(如晶体管、电阻、电容等)的数目多少B. 根据集成度的高低，集成电路可以分为小规模、中规模、大规模、超大规模和极大规模等几种C. 嵌入式系统中使用的处理器芯片属于大规模集成电路D. 集成电路的制造工艺复杂且技术难度非常高，许多工序必须在恒温、恒湿、超洁净的无尘厂房内完成5. 文字信息是人们用以表达和传递信息的媒体之一，大多数嵌入式系统都必须处理文字信息。

下面关于文字信息的表示及其处理的叙述中，错误的是( )。

A. 目前使用最广泛的西文字符集是ASCII字符集，它包含96个可打印字符B. GB2312是我国目前广泛使用的汉字编码国家标准之一C. GB2312包括6000多汉字，但不包含西文、俄文等其他字符D. GB2312字符集中的汉字与符号在系统中采用双字节表示6. 假设一台数码相机一次可拍摄16位色1024×1024的彩色相片共80张，数据压缩比平均是4，则它使用的存储器容量大约是( )。