[单片机开发] PWM波发生器
在硬件电路PWM.DSN中实现P1.7输出PWM波。周期T=100ms，初始占空比（T1/T）为50%，按键KEY1每次增加占空比10%（直到90%），KEY2每次减小占空比10%（直到10%）。
In hardware circuit PWM.DSN, P1.7 output PWM wave is realized. The cycle T=100ms, the initial duty cycle (T1/T) is 50%, the key KEY1 increases by 10% each time (until 90%), and the KEY2 decreases by 10% (until 10%). (2017-06-23, Asm, 38KB, 下载2次)
[单片机开发] ASM-for-ccp-output
汇编语言实现PIC单片机IO口输出PWM波形，经过试验证实，软件没有任何问题。
Assembly language PIC microcontroller IO port output PWM waveform, after tests confirmed that the software without any problems. (2013-08-16, Asm, 74KB, 下载2次)
[单片机开发] interrupt
P1.0产生周期200μs的方波， P1.1产生周期400μs的方波，并要求使用T1作为串行通信的波特率发生器，产生2400的波特率，系统时钟频率为12 MHz。
P1.0 cycle 200 s square wave the P1.1 generated 400μs cycle of the square wave, and requires the use of T1 as serial communication baud rate generator, to generate a baud rate of 2400, the system clock frequency of 12 MHz. (2013-05-20, Asm, 1KB, 下载2次)
[单片机开发] three
51单片机内部中断，P1口接发光二极管，循环亮灯，外部键盘扫描中断，发生中断时，L3456同时亮灯，并持续五秒。
51 MCU internal interrupt, P1 mouth emitting diodes, circular lights, external keyboard scan interrupt, an interrupt occurs, the L3456 lights for five seconds. (2013-04-18, Asm, 1KB, 下载3次)
[单片机开发] frequency-meter
设计频率计：要求用单片机自带定时器实现，测量1Hz—200Hz的方波频率，误差小于1Hz
2、设计方波信号发生器：要求方波信号的频率在500Hz—5000Hz内可调，方波信号的占空比可调
3、完成符合学校要求的设计说明书
Design of frequency meter: requirements MCU with timer, measurement of 1Hz- 200Hz square wave frequency, error is less than1HzIn 2, square wave signal generator design requirements: square wave signal at the frequency of500Hz- 5000Hz adjustable square wave signal, the duty ratio is adjustable3, completed in line with the requirements of the school design specification (2012-04-09, Asm, 445KB, 下载10次)
[单片机开发] D-A-converter
1、D/A转换是把数字量转换成模拟量的变换，实验台上D/A电路输出的是模拟电压信号。要实现实验要求，比较简单的方法是产生三个波形的表格，然后通过查表来实现波形显示。
2、产生锯齿波和三角波
1, D/A converter is to convert the digital analog conversion, the experimental stage D/A circuit is an analog voltage output signal. To achieve the requirement of experiment, a relatively simple method is to generate three waveform table, and then look-up table to achieve the waveform display.
2, resulting in sawtooth wave and triangular wave (2011-12-12, Asm, 29KB, 下载5次)
[单片机开发] 8255P8253
用键盘显示接口芯片8279接收按键键值，并在七段数码管上显示出来，通过判断键值进入相应音乐播放处理程序。在音乐播放程序中，使用定时器/计数器8253的计数器2，使其工作在方式¬ ¬ 3—方波发生器，通过查表依次取出乐曲频率值送入计数器作为计数初值，经out2输出方波，驱动扬声器发出不同频率的声音，在每个音阶之间加入相应的延迟时间，即实现了音乐的播放
8279 with a keyboard and display interface chip receives key key, and on the seven-segment display, by determining the appropriate key to enter the music player process. In the music player, use the timer/counter 2 counter 8253 to work in the way ¬ ¬ 3- square wave generator, followed by table look-up music out into the frequency counter as the count initial value, the output side by out2 wave-driven speakers sound different frequencies in each scale by adding the appropriate delay between the time that the music player to achieve a (2011-09-26, Asm, 1KB, 下载4次)
[单片机开发] ADchange
功能简介：
该实验使用ADC0832芯片的通道0测量实验板上一个电位器提供的电压值。下载好程序后，转动电位器即可观察到显示的电压发生变化。
注意调节程序中的choose=0，选择右边电位器输入；choose=1，选择左边电位器输入，
本程序是：choose=0，选择右边电位器输入，可以用电压表查看输入值与显示数字比较，看是否相等，
Features:
The experimental use of an experimental measurement of an external voltage experimental procedures. Download a good program, an external voltage is connected to the ADC IN pin No. 2, the digital display on an external voltage is the voltage of the current value. External voltage should be between 0 ~ 5V, burn ADC0832 chips over the General Assembly, be sure to note (2011-06-13, Asm, 262KB, 下载5次)
[单片机开发] fangbo
基于M16的100HZ-1MHZ的方波频率发生器
利用M16 TC1的CTC模式产生方波，为使频率精确，本例使用了外接晶体7.3728M，能产生的最高频率为1.8432M，最低频率为57HZ。本例选用100HZ-1MHZ（999.9KHZ）范围。
M16' s 100HZ-1MHZ based square wave frequency generator using the CTC model M16 TC1 produce a square wave, for the frequency accuracy, the example uses an external crystal 7.3728M, can produce the maximum frequency at 1.8432M, the lowest frequency is 57HZ. In this case use 100HZ-1MHZ (999.9KHZ) range. (2011-03-19, Asm, 2KB, 下载4次)
[单片机开发] 52PWM
利用s52定时器做的一个PWM波形设计，可实现三路PWM波输出，并且每路互相独立，可自由调节频率，占空比，频率从1Hz到高达27KHz，占空比可实现0 至100 。带仿真图，源码。
Do use a PWM timer s52 waveform designed to achieve three-way PWM wave output, and each channel independent of each other, be free to adjust the frequency, duty cycle, high frequency from 1Hz to 27KHz, the duty cycle can be realized from 0 to 100 . With a simulation diagram, source code. (2010-08-24, Asm, 67KB, 下载64次)
[单片机开发] DAchange
将J3的1、2短接，使IN2处于双极性工作方式，并给IN1输入一个低频交流信号(幅度为±5V)（可接到SW1上，利用连续调节电位器来产生变化的信号），编程采集这个信号数据并在屏幕上显示波形。
1,2 shorted to J3, so that IN2 work in a bipolar manner and to the IN1 input a low-frequency AC signal (in the range ± 5V) (can be received SW1, using a continuous adjustment potentiometer to generate a signal change ), programming the data acquisition and the signal waveform displayed on the screen. (2009-10-27, Asm, 18KB, 下载6次)
[单片机开发] PWM2
输出两路PWM波形,你可以根据你想要的占空比而把它改过来为你所用，我希望它对你有用
There is output two pwm.And the PWM is able to change by yourself.I wish that it is helpful to you.Thank you! (2009-08-10, Asm, 1KB, 下载8次)
[单片机开发] spwm
51单片机生成SPWM波形，并用PROTEUS仿真
SPWM waveform generation (2009-07-08, Asm, 870KB, 下载616次)
[单片机开发] calcular
计算器程序，用汇编编的计算器，用于单片机
Calculator program for the compilation of the calculator, for single-chip (2009-06-11, Asm, 6KB, 下载35次)
[单片机开发] Mini_DDS
I often need a simple function generator. Just to generate a certain frequency. After all the years I ve worked with electronics, I still haven t got me one. Even though I need it now and then, I just couldn t seem to justify the cost of one.
So, standard solution - build one yourself.
I designed a simple sinewave generator based on a Analog Devices AD9832 chip. It will generate a sinewave from 0.005 to 12 MHz in 0.005 Hz steps.
That s pretty good, and definitely good enough for me ! But while waiting for the AD9832 chip to arrive, I came up with a very simple version of the DDS synth, using just the 2313 and a resistor network.
I often need a simple function generator. Just to generate a certain frequency. After all the years I ve worked with electronics, I still haven t got me one. Even though I need it now and then, I just couldn t seem to justify the cost of one.So, standard solution- build one yourself.I designed a simple sinewave generator based on a Analog Devices AD9832 chip. It will generate a sinewave from 0.005 to 12 MHz in 0.005 Hz steps.That s pretty good, and definitely good enough for me! But while waiting for the AD9832 chip to arrive, I came up with a very simple version of the DDS synth, using just the 2313 and a resistor network. (2008-11-11, Asm, 185KB, 下载24次)
[单片机开发] FIL1256_signal_general
采用FIL1256一体化高频头制作的信号发生器，频率范围：10-100MHz/步进6.25K，80-900M/步进50K，带0.8K FM调制，无输出衰减，无输出滤波
FIL1256 integration using the first production of high-frequency signal generators, frequency range :10-100MHz/stepper 6.25K ,80-900M/stepper 50K, with 0.8K FM modulator, no output attenuation, no output filtering (2007-11-07, Asm, 51KB, 下载16次)
[单片机开发] yinyuebofang
一、 使用键盘显示接口芯片8279接收按键键值，并在七段数码管上显示出来，通过判断键值进入相应音乐播放处理程序。在音乐播放程序中，使用定时器/计数器8253的计数器2，使其工作在方式¬ ¬ 3—方波发生器，通过查表依次取出乐曲频率值送入计数器作为计数初值，经out2输出方波，驱动扬声器发出不同频率的声音，在每个音阶之间加入相应的延迟时间，即实现了音乐的播放。
First, the use of a keyboard display interface chip receive keys keys 8279, and Seven-Segment LED display, through to determine the corresponding music player keys to enter the treatment program. Procedures in the music player, use the timer/counter 2 counter 8253 to work in the way ? ? 3- square-wave generator, followed by out music through the look-up table values into the counter as a frequency count of the initial value, the output side out2 waves, driven loudspeakers of different frequency sound, in between each scale by adding the appropriate delay time, namely, the realization of the music player. (2007-07-16, Asm, 9KB, 下载40次)
[单片机开发] huibianyinyuefashengchengxu
音乐发生程序，程序中有两首歌，并且在播放的同时由LED显示所播放的音乐
music occurred procedures, procedures have two songs, and the broadcast of the show by the LED broadcast music (2007-07-07, Asm, 3KB, 下载116次)
[单片机开发] Inverter
矢量变频器控制源程序
vector converter control program (2007-07-01, Asm, 4KB, 下载177次)
[单片机开发] 14.2.2PID_control(2)
本上载源码为用51汇编语言实现pid控制的发生的程序
uploaded the source code for the 51 assembly language used to achieve pid control of the process (2006-04-23, Asm, 1KB, 下载17次)