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My_TDIF2
Mapreduce实现的TF-IDF词频统计分析，可以直接运行于HADOOP环境下(Analysis of TF-IDF statistical Mapreduce to achieve, can be directly run in HADOOP environment
)
- 2020-06-30 02:40:02下载
- 积分：1
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Saber_ref
SABER是电源仿真的专业软件，此书为入门资源(SABER is a professional power supply simulation software, this book is Getting Started Resources)
- 2010-10-13 10:34:06下载
- 积分：1
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MB95F636k_Motor
使用MB95F636单片机开发的直流无刷无感电机的驱动源程序,BLDC.(Use MB95F636 MCU development Brushless DC motor drive source, BLDC.)
- 2021-01-11 22:28:48下载
- 积分：1
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timer
输出12路死区互补同步中间对齐PWM的定时器配置(Timer Configuration of 12-way Complementary Dead Zone Synchronized Intermediate Alignment PWM)
- 2020-06-25 13:40:02下载
- 积分：1
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rc522
想要读取RC522数据，不想失败了，求解(CC2530 reads RC522 data)
- 2018-10-25 18:06:47下载
- 积分：1
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AT45DB041BSPI
本程序是芯片AT45DB041B的ISP的模拟编程，是一个比较实用的程序，推荐大家看看。(This program is the chip AT45DB041B ISP s analog programming, is a more practical procedure, we recommend a look.)
- 2013-08-19 17:08:07下载
- 积分：1
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MB1504FM-transimitter-
单片机控制MB1504以实现自动锁相FM发射机，使用lcd1602显示。(SCM MB1504 automatic lock-in FM transmitter to use lcd1602 display.)
- 2014-03-26 19:31:38下载
- 积分：1
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流量计
实时显示水的温度，流量，还能根据比例设置水费。具有锁定功能(Real-time display of water temperature, flow, but also according to the proportion of water charges. With locking function)
- 2020-06-23 01:00:01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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TFTLCD_4532
TFT LCD Library for ID: 0x4532
- 2016-10-19 18:24:33下载
- 积分：1
