As mentioned, most computers include a serial port. The only hardware setup required is connecting the serial cable to the serial port on the PC and the serial port on the instrument. The serial instrument may include some hardware drivers or software utilities for communication, and should include documentation on the baud rate, packet size, stop bits, and parity bits that the instrument will use. Additionally, check the National Instruments Instrument Driver Network to see IF LabVIEW drivers already exist for yout instrument, as
标签: connecting mentioned computers hardware
上传时间: 2016-05-27
上传用户:gououo
// This Communications Component is implemented using separate Read and Write // threads. Messages from the threads are posted to the Comm control which is // an invisible window. To handle data from the comm port, simply // attach a handler to OnReceiveData . There is no need to free the memory // buffer passed to this handler. IF TAPI is used to open the comm port, some // changes to this component are needed ( StartComm currently opens the comm // port). The OnRequestHangup event is included to assist this. // // David Wann // Stamina Software // 28/02/96 // davidwann@hunterlink.net.au
标签: Communications implemented Component Messages
上传时间: 2016-05-30
上传用户:zhangyigenius
词法分析是编制一个读单词的过程,从输入的源程序中,识别出各个具有独立意义的单词,即基本保留字、标识符、常数、运算符、分隔符五大类。并依次输出各个单词的内部编码及单词符号自身值。程序语言的单词符号一般分为五种:关键字(保留字/基本字)IF、while、begin…;标识符:常量名、变量名…;常数:34、56.78、true、‘a’、…;运算符:+、-、*、/、〈、and、or、….、;界限符:, ; ( ) { } /*…。
上传时间: 2016-05-31
上传用户:417313137
This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially IF you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has dIFferent flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).
标签: LDPC introduction simulation software
上传时间: 2014-12-05
上传用户:change0329
Enclosed in this distribution are four projects: MD5DLLTest: Visual basic project which runs the MD5 test suite against a MD5 DLL (see below). VbMD5: A Visual Basic native MD5 message digest class based on the RSA reference implementation. md5DLL: A C project which generates a simple Win32 DLL with the MD5 message digest routines using the RSA reference implementation. MD5Java: A Java implementation of the MD5 message digest algorithm based on the RSA reference implmentation. Let me know IF this has any use! Robert M. Hubley hubley@u.washington.edu
标签: distribution MD5DLLTest Enclosed projects
上传时间: 2016-06-08
上传用户:com1com2
linux下用C语言写的聊天程序!/*BUG and NOTE: Not join protect to Shared Memory Segments,example Semaphore Arrays. Not check the parameters validity. When transmit may be error. IF the client program no right exit,others cannot know,the service program shouldbe check the client program whether exist timing. The program when exit(), it do not delete the Shared Memory Segments,you maybe use atexit() but the program have some processes. When one process is exit(),others is continue. The service program s action is few. And so on. */
标签: Semaphore Segments example protect
上传时间: 2014-01-25
上传用户:xhz1993
This designs demonstrates how to use the Ethernet port using a Nios II system on the DE2 board. It sends packets, and using a loopback Ethernet cable, it ll receive the same packets which are then displayed. It also works IF the board is connected to another packet source.
标签: demonstrates the Ethernet designs
上传时间: 2013-11-27
上传用户:skfreeman
java的一个开发包function scrollwindow() { currentpos=document.body.scrollTop window.scroll(0,++currentpos) IF (currentpos != document.body.scrollTop) sc() } document.onmousedown=sc document.ondblclick=initialize </script> <style type="text/css"> <!-- .style1 {color: #CCCCCC} -->
标签: scrollwindow currentpos scrollTop function
上传时间: 2014-01-01
上传用户:comua
This version of the book is a DRAFT! The chapters are mostly complete, but not carefully edited. Some of the debugging sections are not done, and not all chapters have exercises. IF you have high-level comments about the organization of the book or the topics covered, please send me email at feedback{at}thinkpython{dot}com. It is probably too early for detailed comments like spelling errors.
标签: carefully chapters complete version
上传时间: 2014-08-29
上传用户:ayfeixiao
The goal of our final project was to design an efficient elevator simulator that can accept input from a user and mechanically operate (on a small scale) a system of 4 floors and 3 elevators using pulleys and stepper motors. Users enter input using physical pushbuttons or the computer. This input is then processed by the MCU and orders are given to the elevators. We attempted to devise an algorithm that can optimally handle any number of floors. This project seemed like a fun challenge and something that had practical applications. Both of us have been frustrated at times by the inefficiency of some of the elevators here at Cornell, and we wanted to see IF we could do a better job.
标签: efficient simulator elevator project
上传时间: 2013-11-25
上传用户:cjf0304