文档介绍：测试系统集成技术—— Embedded System Jiong Ding What is an embedded system? ? Devices used to control, monitor or assist the operation of equipment or machinery. (IEEE) ? An embedded system is puter system designed to perform one or a few dedicated functions often with real-time computing constraints ( Wikipedia ) ?以应用为中心、以计算机技术为基础、软件硬件可裁剪、功能、可靠性、成本、体积、功耗严格要求的专用计算机系统(一般定义) What is an embedded system? ? Embedded system use general or special purpose CPU running custom software along with specialized hardware to perform application- specific functions. ? Key points: i. Computer system : CPU, Memory, Input/output ii. Application-specific: mobile, PDA, medical device, MP3 … Understanding the Big Picture Hardware device Operating system Device drivers Initialization Application Hardware fundamentals ? Digital Signal Processor (DSP) ? Micro Control Unit (MCU) ? Micro Processor Unit (MPU) ? Field Programmer Gate Array (FPGA) Hardware fundamentals ? Some basic terms vi. Tri-state outputs vii. Signal loading viii . Timing Diagrams and Propagation delay ix . Hold time and Setup time x. Clocks : oscillators and crystals xi . Memory: ROM(EEROM, Flash), RAM(SRAM, DRAM) Advanced hardware fundamentals-DSP 目前 DSP 技术的应用领域已深入以下各个方面: 1)机械振动和噪声研究中的 DSP 技术。 2)通信系统中的信号变换处理。 3)数据传输中的信号变换处理。 4)语音信号处理。 5)图形图像信号处理。 6)信号的统计处理。 1. 数字信号处理器( DSP )的发展 2. DSP 芯片体系结构主要特点 1)总线采用哈佛结构。 2)专用的硬件乘法器。 3)多个功能单元。 4)指令执行的流水线方式。 5)片内存储器。 Digital Signal Processor C2000 电机控制、电源 C5000 一维数字信号处理 C6000 视频 DSP56K Blackfin/Sharc Advanced hardware fundamentals ? Microcontrollers 2017-2-14 10 8051 CPU CPU SRAM SRAM GPIO GPIO UART UART Flash Flash 定时/计数器定时/计数器 A/D D/A A/D D/A CAN CAN Watch dog Watch dog核心部分 USB USB I 2C SPI I 2C SPI