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ir
说明: 器件参数:ATMega16/32,内部8.0000Mhz
实现功能:红外解码(IR Decoding source code source code integrity, and can be used directly.)
- 2011-07-08 10:35:01下载
- 积分:1
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xiangpintexin
本作品以MSP430单片机为核心, 基于DDS原理,通过查表方式输出步进量为10HZ,频率为100HZ~2KHZ的正弦波。两路被测信号通过过零比较、异或和低通滤波整流,实现了对相位差的测量,误差小于(This works with MSP430 microcontroller as the core, based on DDS principle, by look-up table output step sizes for the 10HZ, frequency of 100HZ ~ 2KHZ sine wave. Two by the signal zero-crossing comparator, XOR, rectification and low-pass filtering, the realization of the phase of the measurement error is less than)
- 2013-05-23 15:14:22下载
- 积分:1
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fzxsjt_12434
百度贴吧WAP签到器百度贴吧WAP签到器(Baidu Post Bar, Baidu Post Bar WAP WAP sign is the sign is)
- 2014-01-08 08:46:34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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SAutoFocus01C
单片机SCM处理信号的自动聚焦系统,利用单片机SCMM控制光学镜头,实现自动聚焦功能,
(MCU SCM processing a signal automatic focusing system, the use of the microcontroller the SCMM to control the optical lens, to achieve auto-focus function,)
- 2012-08-25 17:48:26下载
- 积分:1
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distributionofstoragemanagementandrecovery
模拟段式存储管理的分配与回收,能够输入给定的内存大小,进程的个数,每个进程的段数及段大小;当某进程提出申请空间的大小后,显示能否满足申请,以及为该进程分配资源后有关内存空间使用的情况。
(Analog-stage distribution of storage management and recovery, be able to enter a given memory size, number of processes, each process segment number and segment size when a space the size of the application process, the show can meet the application, as well as the The process, after the allocation of resources relating to the use of memory space.)
- 2020-09-17 16:37:55下载
- 积分:1
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Storage_Simulator0001
在采用多道程序设计的系统中,往往有若干个进程同时处于就绪状态。当就绪进程个数大于处理机数时,就必须依照某种策略来决定哪些进程优先占用处理机。本实验模拟在单处理机情况下的处理机调度,帮助学生加深了解处理机调度的工作。
二、实验类型
设计型。
三、预习内容
预习课本处理机调度有关内容,包括进程占用处理机的策略方法。
四、实验要求与提示
设计进程调度算法,进程数不定;包含几种调度算法,并加以实现;输出进程的调度过程——进程的状态、链表等。要求使用优先权法和轮转法模拟进程调度过程。
【提示】:简化假设
1) 进程为计算型的(无I/O)
2) 进程状态:ready、running、finish
3) 进程需要的CPU时间以时间片为单位确定
【提示】:算法描述
1) 优先权法——动态优先权,当前运行进程用完时间片后,其优先权减去一个常数。
2) 轮转法
(err)
- 2008-06-12 19:04:46下载
- 积分:1
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Xray1
实现射线源控制,包括电压,电流,大小焦点。还有图片按钮。(Achieve-ray source control, including voltage, current, the size of the focus. There are picture buttons.)
- 2021-05-12 17:30:03下载
- 积分:1
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source-code
网站伸缩广告的源代码,希望对大家能有帮组(Site scale advertising source code
)
- 2013-07-29 15:45:56下载
- 积分:1
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STM32F030-Demo
stm32f030工程源码,原子风格代码(stm32f030 project source code, atomic style code)
- 2013-12-25 17:17:23下载
- 积分:1