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嵌入式技术服务

    依托上海嵌入式系统与软件联盟,面向广大嵌入式产品生产企业,提供嵌入式系统产品设计专业服务,帮助企业降低产品开发风险,缩短产品开发周期。

一、嵌入式硬件设计服务

服务介绍

嵌入式硬件设计服务

    根据客户需求,评估系统架构选型,囊括主流的嵌入式处理器架构ARM7/9、Xscale、X86、POWERPC、MIPS等。我们丰富的开发经验可以帮助客户平衡性能和成本,并缩短项目开发时间。先进的Cadence Capture CIS系统设计平台保证我们的原理设计准确而高效。基于ALLEGRO系统互联设计平台全面保证可制造性、可测试性产品设计。

嵌入式操作系统移植和驱动开发服务

    移植bootloader,提供板级器件测试。提供开源嵌入式操作系统linux、UCOS-II、FreeRTOS、ucLinux、商业版WinCE5.0/6.0、Montavista Linux、VxWorks在不同主流硬件平台上的移植开发工作,同时提供linux和WinCE下设备驱动的开发服务。

嵌入式应用软件软件开发服务

    根据用户的需求,提供完整嵌入式应用开发服务,包括嵌入式软件总体架构设计(面向对象和面向过程的设计),基于以下嵌入式图形系统图形 (GUI)(Qt/Embedded、MiniGUI、GTK+)的应用开发。

服务流程

应用案例

 高分辨率遥感图像手持式移动终端应用技术研究

 手持式便签打印设备终端设计方案

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二、嵌入式系统测试服务

服务介绍

1、嵌入式系统软件测试服务

    根据用户的需求,提供完整嵌入式应用开发服务,包括嵌入式软件总体架构设计(面向对象和面向过程的设计),基于以下嵌入式图形系统图形 (GUI)(Qt/Embedded、MiniGUI、GTK+)的应用开发。

嵌入式系统单元测试服务

     针对嵌入式软件开发的C和C++语言代码,提供代码在开发阶段的单元测试,使用测试工具自动驱动测试用例,包括单元代码功能实现正确性测试、覆盖率分析,被测软件源程序复杂性及软件结构和内存测试

嵌入式系统代码静态分析

    提供代码质量的静态分析,包括检测程序中未初始化的变量、数据的访问冲突、空指针和越界指针、数组越界、整数和浮点数的溢出、非法的算数运算、不可达代码,分析被测软件是否符合编程标准等服务,提前发现代码中潜在的运行时错误,保证被测嵌入式软件的质量,有效减轻开发后期排错工作量。

嵌入式系统集成测试服务

    借助测试工具CodeTest以及开发人员丰富的嵌入式开发经验,能够针对基于ARM、x86等不同硬件,VxWorks、Linux等不同的嵌入式系统,提供整体软件的性能测试、内存测试和覆盖率分析,能够有效的检测内存泄漏等问题,强有力的帮助开发人员分析和定位系统存在的瓶颈。

嵌入式系统功能测试服务

    提供系统级的功能测试,帮助用户完成大量的功能测试,提供测试用例设计咨询服务、测试环境配置服务,测试执行以及回归测试,能够为有条件的测试提供自动化功能测试服务,自动采集系统输出,自动比对测试结果等

2、硬件测试服务

    当今高速数字设计面临着前所未有挑战:诸如串扰、阻抗匹配、EMI、EMC、抖动等射频微波领域的特有问题,都成为了亟待解决的关键性问题。我们与安捷伦科技共建了亚洲首个信号完整性联合实验室,凭借Agilent ADS先进EDA设计系统,提供面向高速、射频应用领域的信号完整性分析服务,为嵌入式产品设计、加工企业提供硬件系统的仿真与验证服务,帮助设计者从设计初期就开始解决信号完整性问题,保证嵌入式产品的性能与质量。同时我们提供嵌入式系统硬件功能测试服务,帮助客户解决设计最初所遇到的硬件调试问题。比如:低速串行总线I2C、SPI、CAN等协议分析测试,一致性测试等;

3、天线测试服务

    无线通讯已经覆盖人们生活各个领域,从蜂窝(手机)通讯到蓝牙技术,无线局域网,无线城域网(WiMAX)等移动宽带技术。无线技术已充斥着生活的方方面面。随着消费类电子产品的普及,对无线传输速率要求越来越高,在无线传输技术中起决定作用的天线及其天线技术成为人们关注的热点。
    本实验室暗房为长度为7米,宽度3米,高度4米,为6面全波暗室,可以对700MHz至6GHz频段消费类电子(手机、PDA、便携式电脑等设备)进行Antenna测试。

测试标准
    无特别规格, 依照一般天线测试理论执行。IEEE Standard Test Procedures for Antennas(ANSI/IEEE Std 149-1979) 测试项目:Pattern(场型)、 Gain(增益)、ReturnLoss(回损)。

测试方法
 CTIA Certification Program, OTA
 General Antenna Pattern Measurement Concept
  Free Space Configuration, Great Circle Cut Method
 Far Field Measurement & Substitution Method

实验室软硬件具体配置
 测试仪表:Agilent N5230A PNA网络分析仪。
 3D转台:Theta Axis θ轴(水平方向),Phi Axis Ф轴(垂直方向)。由光纤控制,避免引入电磁干扰。
 天线升降塔:手动控制,具有极向变换装置,材质为FRP。
 双通道控制器:同时控制3D转台Theta Axis及Phi Axis,光纤传输控制GPIB总线。
 号角天线两支:一支测试用,一支校正用。
 连接用的高频低损耗同轴电缆,低损SMA转接头。
 Agilent 3D测试软件一套。

服务流程

应用案例

 基于ReWorks的有线数字电视接收器
 100Base-TX一致性测试
 天线2D方向图、天线回损测试

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