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VB-YKMUSB-sampling
说明： 使用vb与衡河9140示波器连接，并控制采集一列脉冲数据，对数据进行分析，计算脉宽、积分面积、平均电压，并将波形通过picture控件显示在界面上(Using vb oscilloscope connected with the value for r. 9140, and a pulse control and data acquisition data, analyze data, calculate pulse width, integration area, average voltage, and waveform display in the interface through the picture controls on)
- 2010-04-01 22:20:56下载
- 积分：1
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PC-(RS232-)
单片机串口通信的应用，通过串口，我们的个人电脑和单片机系统进行通信。
个人电脑作为上位机，向下位机单片机系统发送十六进制或者ASCLL码，单片机
系统接收后，用LED显示接收到的数据和向上位机发回原样数据。(Single-chip serial communication applications, through the serial port, our personal computers and SCM systems to communicate. PC as a PC, send down bit microcontroller system or ASCLL hexadecimal code, after receiving the SCM system with LED display received data and sent back up crew as data.)
- 2013-11-14 15:08:35下载
- 积分：1
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12864xianshidonghua
基于STC89C52单片机的12864动画显示程序，有详细的代码。(STC89C52 12864 based animation program, a detailed code.)
- 2013-06-20 15:19:15下载
- 积分：1
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DL645
电力系统电度表通讯协议，主要针对DL645协议标准(Power system meter communication protocol, mainly for DL645 protocol standards)
- 2013-10-23 22:13:10下载
- 积分：1
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1-(3)
Scheduling With Short Term Security Constrained Unit Commitment
- 2015-04-03 21:26:47下载
- 积分：1
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congji
实现声音导引小车运动，智能小车程序C51代码(Achieve sound AGV Sport, smart car program code C51)
- 2013-08-09 14:45:30下载
- 积分：1
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C8051F060-AD-UART1
C8051F060 自带高速AD进行数据采集 可达100兆采样率 并切缓存与片外ram 并把采集数据通过串口发送给PC ( Data Acquisition example for C8051F060
Description: This example illustrates the use of ADC1 and the DMA to acquire and store
data. It is intended for use with the C8051F060 target board in the development kit.
// This code measures a signal at the AIN0 input with the 16-bit SAR ADC0.
// The data is sampled at a rate of 100kHz. ADC output data is transferred to
XDATA memory space using the DMA.
//
// With the EMIF configured for off-chip XRAM access (on the upper ports),
this code moves the ADC data to the C8051F060TB target boards s SRAM device.
// Once data acquisition is complete, the code then prompts the user to press the P3.7
// button on the target board when ready to receive the data via the UART0 serial port.
The TB features an RS-232 transceiver and connector, so the data can be transferred
// to a PC via its serial port.
//
The code is set to acquire up to 32768 samples (for 64kbytes of data). The SRAM device -
can accommodate up to 128kbytes, )
- 2014-07-03 18:46:42下载
- 积分：1
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PWM-ULN2003A
利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h>
unsigned char timer1
sbit PWM=P1^2
void system_Ini()
{
TMOD|= 0x11
//PWM
TH1 = 0xfe //11.0592
TL1 = 0x33
TR1 = 1
IE =0x8A
}
main()
{
system_Ini()
while(1)
{ if(timer1>100) timer1=0
if(timer1<30) PWM=0
else PWM=1
}
)
- 2013-11-21 15:17:25下载
- 积分：1
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STC89C52_m
此程序可实现长度为8位，周期为255的m序列，此序列可当做伪随机信号发生器，模拟信道噪声。(This procedure can achieve the length of 8 bits, the m sequence of 255 cycles, the sequence can be used as a pseudorandom signal generator, analog channel noise.)
- 2021-01-02 23:18:57下载
- 积分：1
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cheng
滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)
- 2011-07-17 16:23:27下载
- 积分：1
