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SPEED 342

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  • 基于AVR单片机的USB接口设计

    以AVR单片机ATmega8和USB接口器件PDIUSBD12为核心,基于标准的USB1.1协议,设计一种通用USB接口模块,以满足嵌入式系统中对USB接口的需求。对模块的硬件电路或单片机固件程序的硬件接口层稍加修改即可用于其他各种微处理器。该模块可为各种嵌入式系统增加USB接口,实现与USB主机系统通信。 Abstract:  Based on AVR ...

    /dl/29322.html

    标签: AVR USB 单片机 接口设计

    上传时间: 2014-01-08

    上传用户:赵云兴

  • 基于STC12C5408AD的记忆示波器

    主要介绍构成记忆示波器的STC12C5408AD增强型单片机8通道10位模数转换功能的设置、应用和具体的汇编程序设计,以及PC机串行通讯和图形显示的高速汇编程序的设计要点,并列举实例说明其应用效果。 Abstract:  The configuration, applications and the designs for? compiling program of the memorial oscillograph ...

    /dl/29330.html

    标签: C5408 5408 STC 12C

    上传时间: 2013-10-10

    上传用户:adada

  • 基于双ATmega128的安检力学试验机设计

    针对当前安检力学试验机所能完成的试验种类单一、自动化程度低等问题,提出一种以ATmega128单片机为核心控制器的安检力学试验机的设计。详细阐述了该安检力学试验机各个组成部分的设计原理和方案,并且给出了各部分的软件设计思想和操作流程。经过大量测试试验表明:设计的安检力学试验机可以完成多达十余种的力学安检试验 ...

    /dl/29376.html

    标签: ATmega 128 安检 试验机

    上传时间: 2013-11-05

    上传用户:a67818601

  • AD9859芯片资料

    FEATURES400 MSPS internal clock speedIntegrated 10-bit DAC32-bit tuning wordPhase noise ≤ –120 dBc/Hz @ 1 kHz offset (DAC output)Excellent dynamic performance>75 dB SFDR @ 160 MHz (±100 kHz offset) AOUTSerial I/O control1.8 V power supplySoftware and hardware controlled power-down48-lead TQFP/EP ...

    /dl/29887.html

    标签: 9859 AD 芯片资料

    上传时间: 2014-12-04

    上传用户:axin881314

  • lpc2478完全使用手册

    NXP Semiconductor designed the LPC2400 microcontrollers around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded Trace. The LPC2400 microcontrollers have 512 kB of on-chip high-speedFlash memory. This Flash memory includes a special 128-bit wide me ...

    /dl/30319.html

    标签: 2478 lpc 使用手册

    上传时间: 2013-11-15

    上传用户:zouxinwang

  • 用户程序示例教程

    用户程序示例教程 The Blinky project is a simple program for the LPC2138using Keil MCB2130 Microcontroller Board. It blinks the LEDs at speed according to the Potentiometer setting and prints the current seting to the Serial Port 1.In addition it generates a sine wave with an adjustable frequency on ...

    /dl/30746.html

    标签: 用户 教程 程序

    上传时间: 2014-12-27

    上传用户:hongmo

  • 支持USB PS2 UART SPI CRC功能的凌阳8位单

    1、 支持USB 1.1通讯协议;2、 支持高速(Full Speed、12Mbps )和低速(Low Speed、1.5Mbps )传输;3、 6MHz晶体,锁相环PLL振荡器提供高速、低速所需时钟源;4、 支持3个端口(endpoint),可独立编程为IN 或 OUT端口。5、 PS/2:支持PS/2协议(eg.鼠标),与USB复用。 ...

    /dl/30953.html

    标签: UART USB PS2 CRC

    上传时间: 2013-11-03

    上传用户:hbsunhui

  • PCA82C250 PCA82C251 CAN Transc

    The PCA82C250 and PCA82C251 are advanced transceiver products for use in automotive and general industrialapplications with transfer rates up to 1 Mbit/s. They support the differential bus signal representation beingdescribed in the international standard for in-vehicle CAN high-speed applications ( ...

    /dl/30965.html

    标签: PCA 82C Transc 82

    上传时间: 2013-11-24

    上传用户:Alick

  • PCA9549 Octal bus switch with

    The PCA9549 provides eight bits of high speed TTL-compatible bus switching controlledby the I2C-bus. The low ON-state resistance of the switch allows connections to be madewith minimal propagation delay. Any individual A to B channel or combination of channelscan be selected via the I2C-bus, determi ...

    /dl/31009.html

    标签: switch Octal 9549 with

    上传时间: 2014-11-22

    上传用户:xcy122677

  • Adding 32 KB of Serial SRAM to

    Although Stellaris microcontrollers have generous internal SRAM capabilities, certain applicationsmay have data storage requirements that exceed the 8 KB limit of the Stellaris LM3S8xx seriesdevices. Since microcontrollers do not have an external parallel data-bus, serial memory optionsmust be consi ...

    /dl/31063.html

    标签: Adding Serial SRAM 32

    上传时间: 2013-10-14

    上传用户:cxl274287265