Description: 数字式控制正弦波发生IC,简单的串口数据传输方式-Digital sine wave occurred in the control IC, a simple serial data transmission mode Platform: |
Size: 215040 |
Author:方畅 |
Hits:
Description: 增强型直接内存存取(EDMA)是数字信号处理器(DSP)中用于快速数据交换的重要技术，具有独立于CPU的后台批量数据传输的能力，能够满足实时图像处理中高速数据传输的要求。以TI公司的TMS320DM642型DSP为例，介绍EDMA控制器的特点。结合实例给出EDMA在图像数据实时传输中的具体控制和实现方法。-Enhanced direct memory access (EDMA) is a digital signal processor (DSP) for fast data exchange in an important technology, independent of the CPU with the background bulk data transmission capability to meet the real-time image processing in high-speed data transmission requirements . To TI s DSP-based TMS320DM642 as an example, the EDMA controller characteristics. EDMA examples given in the image data in real-time transmission control and the achievement of specific methods. Platform: |
Size: 373760 |
Author:色度 |
Hits:
Description: 主要讲解数据编码和解码原理，还有数字数据转换后通过模拟方式发送，模拟数据转换后以数字的方式传输的原理。-Mainly on the principle of data encoding and decoding, as well as digital data converted by simulating the way to send, after the analog data converters to digital transmission of the tenets of the way. Platform: |
Size: 152576 |
Author:阿斌 |
Hits:
Description: 用VC实现PC并行端口数字信息的输入/输出 目前，在实验室和工业应用的各种控制系统中，串口是常用的计算机与外部控制系统之间的数据传输通道。由于串行通信方便易行，所以应用广泛。但是使用串行通信，在实时性、速度、数据量等方面受到限制。而计算机的并行端口传输数据时是一次性传送8个位（一个字节）或更多，由于传输量较大，因此数据的传输速度要比串口快，在许多必须讲究传输速度的控制系统里，用PC并行端口与之连接就是一个很好的解决方案 -With VC realize PC parallel port digital information input/output current, in the laboratory and industrial applications of the various control systems, serial port is commonly used in computer control systems and external data transmission channel between. Due to the convenient option of serial communication lines, so a wide range of applications. However, the use of serial communication, in real-time, speed, data volume, etc. is restricted. The computer Platform: |
Size: 56320 |
Author:wangshan |
Hits:
Description: 本次设计的数字基带成形滤波器参照IS-95标准进行设计，对输入信号进行4倍过采。IS-95标准为：其中通带频率为590Khz，通带的链波大小1.5dB，截止带的频率为740Khz，截止带的衰减量为40dB，传输的数据率为1.2288Mhz，传输的频宽为1.25Mhz。-The design of the digital base-band shaping filter with reference to IS-95 standard design, the input signal to 4 times over mining. IS-95 standards as follows: one pass-band frequency is 590Khz, passband wave the size of the chain of 1.5dB, closing with the frequency of 740Khz, closing with attenuation of 40dB, the data transmission rate of 1.2288Mhz, transmission bandwidth for 1.25Mhz. Platform: |
Size: 91136 |
Author:刘强 |
Hits:
Description: 程序描述：智能温度感测器，这个范例中使用到
（1）8051 的Port 1连接到LCD显示器，PORT 3的P3.3,P3.4和P3.5分别连接到LCD显示器的控制线，程序执行时可以让LCD显示器显示出时间和日期。
（2）温度感测组件AD590经由ADC0804将感测到的温度，转换成数字数据，然后经由PORT 0输入8051。
（3）8051的第10和第11只脚RXD和TXD分别连线到MAX232，然后连接到PC的COM埠。
（4）8051实验板每 小时就读入ADC0804转换的数字温度数据，然后记录在串行式EEPROM 93C66中。
（5）8051实验板可以经由RS232将记录在串行EEPROM 93C66中的数字温度数据传送PC端。-Description: Smart Temperature Sensor, use this example to (1) 8051 Port 1 to connect to LCD displays, PORT 3 of P3.3, P3.4 and P3.5 were connected to the LCD displays the line of control, procedures implementation allows LCD display shows time and date. (2) temperature sensing components through AD590 will ADC0804 to the temperature sensor, converted into digital data, and then enter PORT 0 through 8051. (3) 8051 paragraphs 10 and 11 feet respectively RXD and TXD connected to the MAX232, and then connect to the PC s COM port. (4) 8051 per hour school board ADC0804 conversion into digital temperature data, and then recorded in the Serial EEPROM 93C66 in. (5) 8051 experimental board through RS232 will be recorded in the serial EEPROM 93C66 of digital temperature data transmission PC client. Platform: |
Size: 51200 |
Author:西_土_瓦 |
Hits:
Description: 数字电视由于传输数字化，多种业务可以混合在一起通过一个信道传输。因此，数字电视已经不是单一的电视业务，而是指通过电视传输通道传输的数字业务，包括视频、音频、图像、数据等。全球数字电视已经进入快速发展阶段。可以预见，在今后几年，与数字电视相关的业务将大幅度增长。随之而来的问题是，当数字电视能为用户提供数倍于目前节目量的节目及多种业务时，用户怎样才能便捷地找到所要的节目和信息呢？电子节目指南(EPG)显然是必不可少的工具。-Digital television transmission as a result of digitization, can be mixed with a variety of business activities through a transmission channel. Thus, digital TV is not a single television business, but through television transmission channel transmission of digital services, including video, audio, images and data. Global digital TV has entered a rapid development stage. It is foreseeable that in the next few years, with the digital TV-related businesses will be greatly increased. Attendant problem is that digital television can provide users with many times the volume of programs in the current programs and a variety of business, how can users easily find the programs and information? Electronic program guides (EPG) is clearly an indispensable tool. Platform: |
Size: 10240 |
Author:junjun |
Hits:
Description: 上海数传信息科技有限公司的所有模块使用的都是2.4Ghz频段，直序扩频（DSSS）的通信方式；所有模块本身都具有不可更改的独一无二的，64位的身份编号。它们组成满足不同实际需要的无线数传网络平台-Shanghai digital information technology Co., Ltd. All modules are used in 2.4Ghz band, Direct Sequence Spread Spectrum (DSSS) method of communication all modules themselves can not be changed with the unique, 64-bit identification number. They meet the needs of different composition of the actual needs of the wireless data-transmission network platform Platform: |
Size: 193536 |
Author:郭伟 |
Hits:
Description: 上海数传信息科技有限公司的所有模块使用的都是2.4Ghz频段，直序扩频（DSSS）的通信方式；所有模块本身都具有不可更改的独一无二的，64位的身份编号。它们组成满足不同实际需要的无线数传网络平台-Shanghai digital information technology Co., Ltd. All modules are used in 2.4Ghz band, Direct Sequence Spread Spectrum (DSSS) method of communication all modules themselves can not be changed with the unique, 64-bit identification number. They meet the needs of different composition of the actual needs of the wireless data-transmission network platform Platform: |
Size: 354304 |
Author:郭伟 |
Hits:
Description: 数字多路系统(DMS)指的是Nortel网络开发的一个交换系统系列。它可以提供用于语音和数据传输的数字电路交换服务，数字传输的信息包交换服务。数字多路系统的特点是在整个交换网络中采用脉冲编码解调（PCM）和时分复用系统（TDM）。该系统允许对传输系统中的PCM信号进行直接交换而不需要转化成模拟格式。-Digital multi-channel system (DMS) refers to the Nortel Networks to develop a series of exchange system. It can provide for voice and data transmission of digital circuit-switched services, digital transmission of information packet-switched services. Digital multi-channel system is characterized by the exchange in the whole network using pulse code demodulator (PCM) and time division multiplexing system (TDM). The system allows for the transmission system of PCM signals without the need for direct exchange into analog format. Platform: |
Size: 218112 |
Author:徐民 |
Hits:
Description: 单片机发送PWM信号和HMR 3000数字罗盘的方位数据的程序为例，介绍无线数据传输的程序在单片机系统中的编制。-Singlechip send PWM signals and HMR 3000 digital compass orientation program data as an example, the introduction of wireless data transmission procedures in the preparation of single-chip system. Platform: |
Size: 1024 |
Author:王成 |
Hits:
Description: look1為電子看板的第二個芯片，使用自制的握手信號與look通訊，可以進行數據傳送，以及控制16個數碼管顯示，此案例已成功用於生產現志，所用的元件很少，功能較大呢-electronic Kanban look1 the second chip, the use of home-made look handshake signals and communications, data transmission can be carried out, as well as control of 16 digital tube display, this case has been successfully used in the production of now-chi, rarely used components, functions more big it Platform: |
Size: 29696 |
Author:bjchen |
Hits:
Description: 程序描述：智能温度感测器，这个范例中使用到
（1）8051 的Port 1连接到LCD显示器，PORT 3的P3.3,P3.4和P3.5分别连接到LCD显示器的控制线，程序执行时可以让LCD显示器显示出时间和日期。
（2）温度感测组件AD590经由ADC0804将感测到的温度，转换成数字数据，然后经由PORT 0输入8051。
（3）8051的第10和第11只脚RXD和TXD分别连线到MAX232，然后连接到PC的COM埠。
（4）8051实验板每 小时就读入ADC0804转换的数字温度数据，然后记录在串行式EEPROM 93C66中。
（5）8051实验板可以经由RS232将记录在串行EEPROM 93C66中的数字温度数据传送PC端。-Description: Smart Temperature Sensor, use this example to (1) 8051 Port 1 to connect to LCD displays, PORT 3 of P3.3, P3.4 and P3.5 were connected to the LCD displays the line of control, procedures implementation allows LCD display shows time and date. (2) temperature sensing components through AD590 will ADC0804 to the temperature sensor, converted into digital data, and then enter PORT 0 through 8051. (3) 8051 paragraphs 10 and 11 feet respectively RXD and TXD connected to the MAX232, and then connect to the PC s COM port. (4) 8051 per hour school board ADC0804 conversion into digital temperature data, and then recorded in the Serial EEPROM 93C66 in. (5) 8051 experimental board through RS232 will be recorded in the serial EEPROM 93C66 of digital temperature data transmission PC client. Platform: |
Size: 52224 |
Author:xiaoyu |
Hits:
Description: 实现DES加密算法..对文件与数字进行加密操作.实现数据的安全性传输.-.. Implementation of DES encryption algorithm to encrypt files and digital operation. Realize the security of data transmission. Platform: |
Size: 627712 |
Author:曾玉富 |
Hits:
Description: 如何改良USB接口的EMI和ESD设计。时下流行的USB2.0接口具有高达480Mbps的传输速率，并与传输速率为12Mbps的全速USB1.1和传输速率为1.5Mbps的低速USB1.0完全兼容。这使得数字图像器、扫描仪、视频会议摄像机等消费类产品可以与计算机进行高速、高性能的数据传输。另外值得一提的是，USB2.0的加强版USB OTG可以实现没有主机时设备与设备之间的数据传输。-How to improve the USB interface of EMI and ESD design. Popular USB2.0 interface with transfer rate up to 480Mbps and 12Mbps transfer rate for the full-speed USB1.1 and transmission rate of 1.5Mbps low-speed fully compatible with USB1.0. This makes digital imaging devices, scanners, video conferencing cameras, such as consumer products and computer high-speed, high-performance data transmission. Also worth mentioning are, USB2.0 enhanced version of USB OTG host can be achieved when there is no equipment and data transmission between devices. Platform: |
Size: 150528 |
Author:hu |
Hits:
Description: 实现监控环境中的温度，湿度并在数码管交替显示，还可通过串口与电脑传送检测到的数据-Implementation of environmental monitoring of temperature, humidity and digital control at the turn of shows, but also with the computer through the serial data transmission is detected Platform: |
Size: 3072 |
Author:倚天 |
Hits:
Description: 模拟数字通信通道，将离散数据利用奇偶效验码编码，FSK调制后，发送，接收端解调解码后还原-Analog-to-digital communication channel, the use of discrete data to be well-tested code parity coding, FSK modulation, the transmission, the receiving end to restore the decoded demodulation Platform: |
Size: 252928 |
Author:Andy Hu |
Hits:
Description: 智能温度感测器
（1）8051 的Port 1连接到LCD显示PORT 3的P3.3,P3.4和P3.5分别连接到LCD显示器的控制线，程序执行时可以让LCD显示器显示出时间和日期。
（2）温度感测组件AD590经由ADC0804将感测到的温度，转换成数字数据，然后经由PORT 0输入8051。
（3）8051的第10和第11只脚RXD和TXD分别连线到MAX232，然后连接到PC的COM埠。
（4）8051实验板每 小时就读入ADC0804转换的数字温度数据，然后记录在串行式EEPROM 93C66中。
（5）8051实验板可以经由RS232将记录在串行EEPROM 93C66中的数字温度数据传送PC端。*/-Intelligent Temperature Sensor (1) 8051 Port 1 to connect to the LCD display PORT 3 of the P3.3, P3.4 and P3.5 are connected to the LCD display control line, the program execution allows LCD monitor shows time and日期. (2) AD590 temperature sensing components measured by the ADC0804 to sense the temperature, converted into digital data, and then enter the 8051 via PORT 0. (3) 8051 10 and 11 feet respectively, RXD, and TXD connected to the MAX232, and then connect to the PC' s COM port. (4) 8051 Experimental plates per hour enrollment ADC0804 to convert digital temperature data, and then recorded in the serial EEPROM 93C66. (5) The 8051 experiment panels can be recorded through the RS232 serial EEPROM 93C66 in the digital temperature data transmission PC side.* / Platform: |
Size: 52224 |
Author:tianxue |
Hits:
Description: Multicarrier
(MC) systems have been proposed, standardized and/or implemented for various
applications, such as highspeed
data transmission over twistedpair
cables [1] and broadcasting
of digital audio and digital TV [2]. Platform: |
Size: 1024 |
Author:mahi uma |
Hits:
Search - digital data transmission