基于CVI的声信号采集显示

用VC写的仿spy++,内含源码,钩子内容.(imitate spy++)

说明：  VC开发环境的界面 VC开发环境的界面 VC开发环境的界面(VC interface development environment Development Environment VC interface VC interface development environment)

利用openGl实现VC中二维界面与三位界面之间的转换，即可以再二维界面上画图，也可以在三维界面上画图。(Using OpenGL to acheive the function in VC of conversation between 2-dimension interface and 3-dimension-interface.)

本例展示了如何设置TIM，用它来测量一个外部输入信号的频率和占空比。 TIM2时钟设置为72MHz，预分频设置为0，TIM2计数器时钟可表达为： TIM2 counter clock = TIMxCLK / (Prescaler +1) = 72 MHz，因此可测量的最小频率值为1100Hz。 设置TIM2工作在PWM输入模式（PWM Input Mode），把外部信号作为输入连接到TIM2通道2。 利用TIM2计数器中断来测量信号的频率和占空比。在TIM2_IRQHandler中，计算信号的频率和占空比，方法如下： 变量"Frequency"为由下式得到的外部信号频率： Frequency = TIM2 counter clock / TIM2_CCR2 单位Hz 变量"Duty_Cycle"为由下式得到的外部信号占空比： Duty_Cycle = (TIM2_CCR1*100)/(TIM2_CCR2) 单位 (This example shows how to set up the TIM, and use it to measure the frequency and duty cycle of an external input signal. TIM2 clock set to 72MHz and the prescaler is set to 0, TIM2 is counter clock can be expressed as: TIM2 is counter clock = TIMxCLK/(prescaler. Ppls1) = 72 MHz, the minimum measurable frequency value of 1100 Hz. Set TIM2 PWM input mode (PWM Input Mode), the external signal as an input connected to the the TIM2 Channel 2. TIM2 counter interrupt signal to measure frequency and duty cycle. Calculate the frequency and duty cycle of the signal in TIM2_IRQHandler as follows: variable " Frequency" on the grounds of the external signal frequency by the following formula: Frequency = TIM2 is counter clock/TIM2_CCR2 unit Hz variable Duty_Cycle " on the grounds of the following formula to get external duty cycle: Duty_Cycle = (TIM2_CCR1* 100)/(TIM2_CCR2) in )

在tms320f28335平台下，实现pwm波控制led

ADC0809模数转换程序,本程序使用的是8位共阳数码管显示，经过亲自测验可以使用，欢迎大家一起研究学习讨论，

AT89C51SND1C方案mp3资料包括源程序与原理图(AT89C51SND1C program information, including source code and mp3 schematic)

人脸识别综合程序，使用C++和opencv开发，在VS平台上运行即可(Face recognition integrated program)

Geant4 计算基于GEM气体探测器的涂硼GEM膜热中子转换效率(Geant4 calculate gas detector based on GEM GEM film coated boron thermal neutron conversion efficiency)

24点游戏，找出所有解。给任意4个数，该程序能找出所有通过加，减，乘，除，括号算出24结果的算式。(24-point game, find all solutions. To any four numbers, the program can identify all through add, subtract, multiply, divide, calculate 24 results parentheses formula.)