一、实验目的 了解数/模转换器的基本原理，掌握DAC0832芯片的使用方法。 二、实验内容 1、实验电路原理如图36，DAC0832采用单缓冲方式，具有单双极性输入端（图中的Ua、Ub）,利用debug输出命令（Out 290 数据）输出数据给DAC0832，用万用表测量单极性输出端Ｕa及双极性输出端Ｕb的电压，验证数字与电压之间的线性关系。 2、编程产生以下波形（从Ub输出，用示波器观察） (1)锯齿波 三、编程提示 1、8位D/A转换器DAC0832的口地址为290H，输入数据与输出电压的关系为： （UREF表示参考电压,N表示数数据），这里的参考电压为ＰＣ机的＋５Ｖ电源。 2、产生锯齿波只须将输出到DAC0832的数据由0循环递增。
上传时间： 2016-03-12
上传用户：ywqaxiwang
基于OFDM的无线宽带系统仿真It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation. System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate.
标签： simulator i.e. system-level link-level
上传时间： 2016-03-15
上传用户：xsnjzljj
Data mining (DM) is the extraction of hidden predictive information from large databases (DBs). With the automatic discovery of knowledge implicit within DBs, DM uses sophisticated statistical analysis and modeling techniques to uncover patterns and relationships hidden in organizational DBs. Over the last 40 years, the tools and techniques to process structured information have continued to evolve from DBs to data warehousing (DW) to DM. DW applications have become business-critical. DM can extract even more value out of these huge repositories of information.
标签： information extraction predictive databases
上传时间： 2016-03-19
上传用户：啊飒飒大师的
此程序用于视频采集过程中CPLD对时序的转换与组合代码，每两行采集一行，两列采集一列，减小数据量，同时能保证采集完整的一幅图像（输出OUT用于DSP或者单片机中断）
上传时间： 2013-12-25
上传用户：lingzhichao
M16C瑞萨平台， 1.使用GPIO口完成I2C协议 2.读写低功耗实时时钟芯片RV8564C
上传时间： 2016-03-24
上传用户：aeiouetla
This program may crash your system or run poorly depending on your hardware. The program and code contained in this archive was scanned for virii and has passed all test before it was put online. If you use this code in project of your own, send a shout out to the author!
标签： program your depending hardware
上传时间： 2014-11-23
上传用户：anng
该模块基于USB FX2开发板，实现了GPIO(general-purpose IO)控制功能，目前可提供15口输出控制在0V/3.3V之间切换，和9口输入在Enable/Disable之间切换。
上传时间： 2014-12-06
上传用户：myworkpost
tmsf2812提供的一些例程，包括sci,gpio,spi,ad/da
上传时间： 2016-04-13
上传用户：米卡
1) Write a function reverse(A) which takes a matrix A of arbitrary dimensions as input and returns a matrix B consisting of the columns of A in reverse order. Thus for example, if A = 1 2 3 then B = 3 2 1 4 5 6 6 5 4 7 8 9 9 8 7 Write a main program to call reverse(A) for the matrix A = magic(5). Print to the screen both A and reverse(A). 2) Write a program which accepts an input k from the keyboard, and which prints out the smallest fibonacci number that is at least as large as k. The program should also print out its position in the fibonacci sequence. Here is a sample of input and output: Enter k>0: 100 144 is the smallest fibonacci number greater than or equal to 100. It is the 12th fibonacci number.
标签： dimensions arbitrary function reverse
上传时间： 2016-04-16
上传用户：waitingfy
关于Flash的烧写程序的编写，要使用FlashBurn软件配合FBTC.out才能把*.hex文件少写到Flash中
上传时间： 2016-04-20
上传用户：二驱蚊器
