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数字频率调制又称频移键控（FSK），二进制频移键控记作2FSK。数字频移键控是用载波的频率来传送数字消息，即用所传送的数字消息控制载波的频率。2FSK信号便是符...
数字频率调制又称频移键控（FSK），二进制频移键控记作2FSK。数字频移键控是用载波的频率来传送数字消息，即用所传送的数字消息控制载波的频率。2FSK信号便是符号“1”对应于载频，而符号“0”对应于载频（与不同的另一载频）的已调波形，而且与之间的改变是瞬间完成的。 -Digital frequency modulation called frequency shift keying (FSK), binary frequency shift keying recorded as 2FSK. Digital frequency-shift keying is the carrier frequency to transmit digital information, that is, the number of messages transmitted with the control of the carrier frequency. 2FSK signal is the symbol of "1" corresponds to the carrier frequency, while the symbol "0" corresponds to the carrier frequency (with a different carrier frequency to another) and modulated waveform, but also between the change was instantaneous.
- 2022-08-23 09:17:39下载
- 积分：1
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一个与一个低通滤波器结合可以用作简单、廉价的数/模转换器。其输出可用于驱动电压控制器件，或用于需要模/数转换器采样受控参数的反馈控制系统中。PWM常用于电机控制...
一个与一个低通滤波器结合可以用作简单、廉价的数/模转换器。其输出可用于驱动电压控制器件，或用于需要模/数转换器采样受控参数的反馈控制系统中。PWM常用于电机控制系统中。-A combination of a low-pass filter can be used as a simple, low-cost D/A converter. The output can be used to drive voltage control devices, or for the need for A/D converter sampling the controlled parameters of feedback control systems. PWM motor control commonly used in the system.
- 2022-01-26 06:17:39下载
- 积分：1
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Cast256算法软件.用汇编语言编写.
Cast256算法软件.用汇编语言编写.-Cast256 algorithm software. Prepared to use assembly language.
- 2022-01-26 02:21:35下载
- 积分：1
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蜂鸣器在单片机上的应用,汇编语言,附原理图及说明学习文档 蜂鸣器的正极性的一端联接到5V电源上面，另一端联接到三极管的集电极，三极管的基级由单片机的P2.4管脚...
蜂鸣器在单片机上的应用,汇编语言,附原理图及说明学习文档 蜂鸣器的正极性的一端联接到5V电源上面，另一端联接到三极管的集电极，三极管的基级由单片机的P2.4管脚通过一个与非门来控制， 用户可以通过程序控制P2.4管脚的置低和置高来使蜂鸣器发出声音和关闭。 蜂鸣器的声音大小及音调可以通过调整P2.4管脚的置高时间及输出的波形进行控制，这一点可以在调试程序的时候来试验。-On the buzzer in single-chip applications, assembly language, with a schematic diagram and instructions to study documents the positive polarity of the end of the buzzer connected to the 5V power supply above, the other end connected to the transistor" s collector, the base level by the single-chip transistor Machine P2.4 pin through a NAND gate to control, the user can be programmed to set pin P2.4 low and set high to make the buzzer sound on and off. Buzzer sound size and pitch can be set by adjusting the P2.4 pin of the high time and output waveform control, and this point could be the time to test the debugger.
- 2023-07-19 04:45:03下载
- 积分：1
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8259中断实验,在DVCC
8259中断实验,在DVCC-598实验箱上进行,中断信号为按下开关时产生的上升沿 8253发声程序.-8,259 interruption experiments, the DVCC- 598 experimental tank, interrupted signal? Switch to the rising edge 8253 audible procedures.
- 2022-11-12 09:30:04下载
- 积分：1
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大家再看看吧
大家再看看吧-We look and see
- 2023-05-09 03:05:03下载
- 积分：1
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直流电机控制实验
马表
静态点阵led控制
动态点阵led控制
lcd字形显示
lcd自建字形
lcd与4*4键盘控制
lcd之d...
直流电机控制实验
马表
静态点阵led控制
动态点阵led控制
lcd字形显示
lcd自建字形
lcd与4*4键盘控制
lcd之dd/cg ram读取控制
lcd的4位控制模式实验
比大小游戏实验
中文显示型lcd控制
半矩阵式键盘与lcd控制
i2c传输-DC motor control experiment stopwatch control of the static lattice led dot matrix led dynamic control lcd display lcd self-built glyph shape lcd and 4* 4 keyboard lcd of dd/cg ram read control lcd 4-bit control mode experiment than the size of the game to experiment Chinese display type lcd control the half-matrix i2c transfer control of the keyboard and lcd
- 2022-11-12 22:25:03下载
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线性调频信号的部分功能
线性调频信号的部分功能 线性调频信号的部分功能 线性调频信号的部分功能 线性调频信号的部分功能线性调频信号的部分功能
- 2022-04-22 01:51:35下载
- 积分：1
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用S1实验板
P1口的8个发光管每隔2个右循环点亮
用S1实验板
P1口的8个发光管每隔2个右循环点亮 -Experiments with S1 plate P1 mouth every 8 LED 2 right circle lit
- 2022-01-30 23:11:56下载
- 积分：1
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Compilation mixed by C51 and realize four soft serial procedures, the interface...
用C51和汇编混合实现4个软串口的程序，接口是C51的-Compilation mixed by C51 and realize four soft serial procedures, the interface is the C51
- 2022-03-18 08:12:37下载
- 积分：1
