16F877单片机与PC机通讯的源程序,老外的,别错过.

本程序有详细的注释,切运行无误 ,程序模块清晰,移植性好,可以实现登陆时间的记录,时间的动态显示,-This procedure has detailed notes, all running correctly, program modules clear, portability, and can realize landing time records, time dynamic display,

visual basic visual basic visual basic-visual basic visual basic vis ual basic vis ual basic visual basi c

利用PC机的硬件定时8253, 编制秒表延时(0~9秒)程序.要求: 按任意键,开始计时, 在屏幕上以1秒间隔从0到9显示 按ESC键,计时停止.-use of PC hardware-timed 8253, the establishment of a stopwatch Delay (0 ~ 9 seconds) program. Requirements : by the arbitrary button, the timer on screen to a second interval from 0 to 9 shows by the ESC key, a time to stop.

字符背景颜色变幻-characters background color changes

Anaog to digital by PCF8591 C Language By KEIL

dspic6012A读写24LC02B的例程(用c语言编写)-24LC02B of routines to read and write dspic6012A (using c language)

用于8237的DMA实验，使用环境可为Winxp Xingyan集成环境-The DMA used in 8237 experiments, the use of environmental integrated environment for Winxp Xingyan

调试通过了的基于89S51的串口芯片1307和24C02的程序-Debugging through a serial port-based 89S51 chip 1307 and the 24C02 procedure

windows 环境下的nasm汇编编译器器源码-The source code of nasm in the windows environment

ex6_1 ～ ex6_3二项分布的随机数据的产生 ex6_4 ～ ex6_6通用函数计算概率密度函数值 ex6_7 ～ ex6_20常见分布的密度函数 ex6_21 ～ ex6_33随机变量的数字特征 ex6_34 采用periodogram函数来计算功率谱 ex6_35 利用FFT直接法计算上面噪声信号的功率谱 ex6_36 利用间接法重新计算上例中噪声信号的功率谱 ex6_37 采用tfe函数来进行系统的辨识，并与理想结果进行比较 ex6_38 在置信度为0.95的区间上估计有色噪声x的PSD ex6_39 在置信度为0.95的区间上估计两个有色噪声x，y之间的CSD ex6_40 用程序代码来实现Welch方法的功率谱估计 ex6_41 用Welch方法进行PSD估计，并比较当采用不同窗函数时的结果 ex6_42 用Yule-Walker AR法进行PSD估计 ex6_43 用Burg算法计算AR模型的参数 ex6_44 用Burg法PSD估计 ex6_45 比较协方差方法与改进的协方差方法在功率谱估计中的效果 ex6_46 用Multitaper法进行PSD估计 ex6_47 用MUSIC法进行PSD估计 ex6_48 用特征向量法进行PSD估计-ex6_1 ~ ex6_3 binomial distribution of the generated random data ex6_4 ~ ex6_6 generic function value of the probability density function ex6_7 ~ ex6_20 common distribution density function ex6_21 ~ ex6_33 figure characteristics of random variables periodogram function ex6_34 used to calculate the power spectrum ex6_35 direct method using FFT signal above the noise of the power spectrum ex6_36 recalculated