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General-Eval-Board-Spec

  • TF卡3.0的物理层规范 Micro-SD3_0 SPEC

    TF卡3.0的物理层规范,只提取了机械部分规范和电气部分规范,对于硬件驱动调试、信号测试有帮助

    标签: TF卡 物理层

    上传时间: 2022-03-23

    上传用户:

  • 基于MC9S12XS128单片机的CAN总线通信节点设计

    CAN总线是汽车上应用最广泛的车载网络总线,具有实时性强、可靠性高、成本低等优点。鉴于此,介绍了一种利用飞思卡尔系列单片机MC9S12XS128作为控制器,利用其内部的MSCAN模块、CAN收发器TJA1040等外围元件进行CAN总线通信节点设计。该设计能够实现CAN总线数据的发送与接收,可应用于汽车及其他各种CAN总线通信系统。CAN bus is the most widely used on-board network bus in automobiles. It has the advantages of realtime, high reliability and low cost. In view of this,this paper introduces the design of CAN bus communication node by using Freescale MC9S12XS128 as controller,using its internal MSCAN module,CAN transceiver TJA1040 and other peripheral components. This design can realize the sending and receiving of CAN bus data,and can be used in automobile and other CAN bus communication systems.

    标签: 单片机 can总线 通信

    上传时间: 2022-03-27

    上传用户:

  • ESP32 DHT11 MQTT 温湿度实例

    1. Preface2. The concept2.2. Prescience 2.3. Reading guide 2.4. Abbreviations 2.5. Version management3. Hardware3.2. ESP32 3.3.2. Hardware schema 3.3.3. DHT22 and level shifter 3.3.4. Geekcreit® ESP32 Development Board4. Software4.2. Installatie van GIT 4.3. Installatation of the ESP32 Core 4.4. Installation of the Xtensa and ESP32 Tools 4.5. Python 4.5.1. Install Python 4.5.2. Installation of pySerial and EspTool 4.6. Test the software installation5. The ESP32 IoT project 5.1.1. WiFi connection 5.1.2. Setup date and time 5.1.3. MQTT connection 5.1.4. Determining temperature and humidity 5.2. IOT_ESP32_Project source6. Test6.2. ESP32, NodeJS, MongoDB en Mosca 6.2.1. Start MongoDB 6.2.2. Start NodeJS Express serve and Mosca broker 6.2.3. Start the ESP32 6.2.4. Start an Chrome browser

    标签: esp32 dht11 mqtt

    上传时间: 2022-04-05

    上传用户:kingwide

  • 高通蓝牙芯片QCC5144_硬件设计指导书

    高通(Qualcomm)蓝牙芯片QCC5144_硬件设计详细指导书(官方内部培训手册)其内容是针对硬件设计、部分重要元器件选择(ESD,Filter)及走线注意事项的详细说明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 92.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天线 走线的注意事项)4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 USB interfaces7.1 USB device port7.1.1 USB device port7.1.2 Layout notes 7.1.3 USB charger detectionA QCC5144 VFBGA example schematic and BOM B Recommended SMPS components specificationB.1 Inductor specifition B.2 Recommended inductors B.3 SMPS capacitor specifition

    标签: 蓝牙芯片 qcc5144

    上传时间: 2022-04-07

    上传用户:默默

  • 基于MSP430F5529单片机综合实验装置的研制

    针对目前MSP430单片机实验装置较少、实验内容少,而且无MSP430高端产品的实验装置,研制了基于MSP430F5529单片机的综合实验装置,主要包括MSP430 Launch Pad和母板两部分。较传统的单片机实验装置增加了模拟电路的设置,设计的实验能够利用单片机的所有外设,可进行模块基础实验和综合实验两大类实验,非常适合自动化和电气信息类大学生学习使用。Concerning with the lack of experimental equipment and content based on MSP430,and especially,the experimental equipment of MSP430 senior products,an experimental equipment based on MSP430F5529 microcontroller is developed. It mainly consists of two parts: MSP430 Launch Pad and main board. Compared with traditional microcontroller experiment equipment,a few analog circuits were added. The experiment we set up takes advantage of all microcontroller peripherals. Students can do two kinds of experiments: module experiment and complex experiment.Therefore it fits university students in automation and electrical major very well.

    标签: msp430f5529 单片机

    上传时间: 2022-04-13

    上传用户:

  • HDMI 2.0 Spec

    HDMI-Definition Multimedia Interface Specification Version 2.0This document constitutes the Version 2.0 specification for the High-Definition Multimedia Interface (HDMI Specification Version 2.0). This Specification incorporates HDMI Specification Version 1.4b by reference and defines additional and improved functionality. Mechanical, behavioral, and protocol requirements necessary for compliance are described for Sources, Sinks, Repeaters, and Cables.

    标签: hdmi

    上传时间: 2022-04-22

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  • 基于TMS320F28335的超声波流量计硬件原理图+软件源码

    基于TMS320F28335的超声波流量计硬件原理图+软件源码本文以TMS320F28335 处理器为核心,设计一种用于管道流量测量的超声波流量计。系统硬件由核心板,超声波发射和接收电路,切换电路,超声换能器,基于ADS805 的高速信号采集电路,人机交互以及电源等模块构成。采用时差法进行管道流量测量,时差测量采用SCOT 加权的广义互相关时延估计算法。本论文设计的超声波流量计具有测量速度快、准确性好、成本低等优点。关键字:C2000,超声波,流量,广义互相关算法AbstractA kind of ultrasonic flowmeter using for the pipe flow measurement is designed based onTMS320F28335 in this paper. The system hardware consists of the following parts: the core board,ultrasonic signal transmitter and receiver circuits, switch circuit, ultrasonic transducer, signalacquisition circuit based on ADS805, human-computer interaction module and power supplymodule, etc. The system use the method of time difference for pipeline flow measurement and thetime difference is calculated by the time-delay algorithm of SCOT weighted generalizedcross-correlation. The ultrasonic flowmeter has the features of high testing speed, high precisionand low cost, etc.Keywords: C2000,Ultrasonic, Flow, Generalized Cross-Correlation Algorithm

    标签: tms320f28335 超声波流量计

    上传时间: 2022-05-06

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  • MIPI中文入门

    ContentsMIPI是什么?o D-PHY物理层特点•МIРI 的数据传送oDSI&CSI应用MIPI:手机产业处理界面MIPI协议是手机行业的领导者倡导一个开放的移动接口标准MIPI Spec:DCS-显示命令接口DBI-显示总线接口DPI-显示像素接口DSI一显示串行接口CSI一显示摄像接口D-PHY物理层MIPI特点低功耗模式·动态调整到低功耗模式、高速传送模式和低信号摆幅模式。高速模式每通道可以传送500-1000Mbps低成本物理层EMI(抗辐射)数据包报头(4 bytes)数据标识符(DI*1byte:包含虚拟数据通道[7:6]和数据类型[5:0].,数据包*2byte:要传送的数据,长度固定两个字节。误差校正码(ECC)"1byte:可以把两个位的错误纠正例程数据包报头(4 bytes)数据标识符(Di)*1byte:包含虚拟数据通道[7:6]和数据类型[5:0].字数(WC)*2byte:传送数据的长度,固定为两个字节错误校验码(ECC)*1byte:可以修复两个位的错误有效传送数据(0~65535 bytes)最大字节-2^16.数据包页脚(2 bytes):校验如果数据包的有效长度为0,那么校验位为FFFFh如果校验码不能计算,那么校验码的值为0000h数据包的长度:e4+(0-65535)+2-6~ 65541 bytesSync Event(H Start,H End,v Start,V End),Data Type =xx 0001(x1h)同步事件是两个字的数据包(1个字节的指令和一个字节的校验,因些他们可以精确的表示同步事件的开始和结束.干单个司步开始或同步结束事件的长度和位置在前面的图中有说明。同步事件的定义如下:Data Type= 00 0001(01h)场同步开始Data Type= 01 0001(11h)场同步结束Data Type= 10 0001(21b)行同步开始.Data Type= 11 0001(31h)行同步结束为了尽可能精确的体理一个同步事件,那么开始标识位必须放在第一位,结束标识位必须放在最后一位,行同步也是一样。同步事件的开始和结束应该是成对出现的,假如只有一个同步事件(通常是开始),那么这个数据也是可以传送出去的。

    标签: mipi

    上传时间: 2022-05-08

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  • 血氧仪核心硬件电路设计及Multisim仿真

    为了实时检测血氧量,能使缺氧特别敏感的脑组织或心脏类疾病患者得到及时治疗,采用近红外双波长透射式光电脉搏血氧测定法,以H桥电路对发射光源进行控制及通用运算放大器搭建滤波电路。运用参数理论计算和计算机仿真结果相对比的方法,通过Mu ltisim软件对所设计电路进行仿真,仿真结果与理论参数计算相吻合,证明了电路参数设计的可行性,为血氧仪的实物制作提供参考。For real-time detection of oxygen saturation for timely treatment of the brain or heart,which are very sensitive to oxygen inadequacy,the near-infrared wavelengths double photoelectric pulse oximeter transmission method is adopted.The illuminant is controlled with the H bridge circuit and the filter circuit is built with general op-amps.Parameters by theoretical calculation is compared with the computer simulation results in Multisim and satisfactory results are obtained.It is shown that the design of the circuit parameters is feasible and can be a help in making the physical blood-oxygen monitor.

    标签: multisim 光电二极管 滤波器

    上传时间: 2022-05-12

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  • PCB 焊盘与孔设计工艺规范

    1. 目的 规范产品的PCB焊盘设计工艺, 规定PCB焊盘设计工艺的相关参数,使得PCB 的设计满足可生产性、可测试性、安规、EMC、EMI 等的技术规范要求,在产品设计过程中构建产品的工艺、技术、质量、成本优势。 2. 适用范围本规范适用于空调类电子产品的PCB 工艺设计,运用于但不限于PCB 的设计、PCB 批产工艺审查、单板工艺审查等活动。本规范之前的相关标准、规范的内容如与本规范的规定相抵触的,以本规范为准3.引用/参考标准或资料TS-S0902010001 <〈信息技术设备PCB 安规设计规范〉>TS—SOE0199001 <〈电子设备的强迫风冷热设计规范〉〉TS—SOE0199002 〈<电子设备的自然冷却热设计规范>>IEC60194 〈<印制板设计、制造与组装术语与定义>> (Printed Circuit Board designmanufacture and assembly-terms and definitions)IPC—A-600F 〈<印制板的验收条件>〉 (Acceptably of printed board)IEC609504。规范内容4。1焊盘的定义  通孔焊盘的外层形状通常为圆形、方形或椭圆形。具体尺寸定义详述如下,名词定义如图所示。1)   孔径尺寸:若实物管脚为圆形:孔径尺寸(直径)=实际管脚直径+0。20∽0。30mm(8。0∽12。0MIL)左右;若实物管脚为方形或矩形:孔径尺寸(直径)=实际管脚对角线的尺寸+0.10∽0。20mm(4.0∽8。0MIL)左右。2)   焊盘尺寸: 常规焊盘尺寸=孔径尺寸(直径)+0.50mm(20.0 MIL)左右.…………

    标签: PCB

    上传时间: 2022-05-24

    上传用户:canderile