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1
说明： 最好的单片机C语言学习用书，详细的完整版，功能很强，适用于初中级学习者(The best single-chip C language learning books, detailed full version, features a strong)
- 2015-08-14 17:13:25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
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simulatingWirelessCommunicationSystemUse_C++_code
《无线通信系统仿真--C++实用模型》一书的配套源代码，里面包含了，通信系统的所有模块，对学习通信和C++有很好的借鉴()
- 2007-08-04 02:24:11下载
- 积分：1
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1602QG
F340 LCD1602 模块程序 (F340 LCD1602 module program)
- 2011-05-12 23:08:46下载
- 积分：1
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Hla_template
说明： HLA仿真程序模板,使用的RTI为pRTI 1.3.(HLA templates, the use of the RTI pRTI 1.3.)
- 2020-10-29 11:09:56下载
- 积分：1
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PCAS
采用VB编写的一个电路分析系统，支持现行电路的分析，具有电路图绘制，仿真功能，并包含了示波器等元器件。(using VB prepared a circuit analysis system, in support of the current circuit, with circuit diagrams mapping, simulation function, and includes components such as oscilloscopes.)
- 2020-12-07 20:09:22下载
- 积分：1
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ADC1_TriggerConversion
根据对应的按键值，对应输出相应的电容值，并做掉电检测(According to the corresponding key value, corresponding to the output of the corresponding capacitance values and do brownout detection)
- 2013-11-26 23:42:16下载
- 积分：1
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RGB_Colour1618447212003
RGB Colour Wheel for Visual Basic
- 2016-01-28 22:22:18下载
- 积分：1
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c24c02
通过把开机次数记录在24C02中，并在数码管上显示出来， 124C02的写保护脚为低电平，即允许写(Boot number of records in the 24C02, and displayed on the digital 124C02 write-protect pin is low, that is allowed to write)
- 2012-12-10 15:40:06下载
- 积分：1
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HUST
华中科大第八届的程序 拿了赛区的二等奖 关于飞思卡尔智能车电磁组(sensor group)
- 2014-01-17 13:00:55下载
- 积分：1
