快速傅里叶变换在单片机中的实现,可用来显示生音波形

PWM波程序 可以用来控制电机调速，程序比较简单，这里只用了一个定时器就实现了。因为51单片机没有PWM波的寄存器，所以要自己用软件控制。-PWM waves program can be used to control motor speed, procedure is simple, here only a timer is realized. Because no PWM waves 51-series microcomputer to yourself, so with registers control software.

pic单片机定时器和计数器的初始化程序，定时器0定时100ms，计数器T1计数外部脉冲个数，查寻方式-Single-chip timers and counters pic initialization procedure, Timer 0 Timing 100ms, external pulse counter counts the number of T1, search methods

基于51单片机的温度和电压采集与循环显示的控制程序，其中温度传感器为LMA95，采用I2C总线传输，显示器为8段LED数码管-51 single-chip-based temperature and voltage of the cycle of acquisition and display of the control procedures, including temperature sensors for LMA95, using I2C bus transmission, display for the 8 LED digital tube

控温芯片ＤＳ１８Ｂ２０，与ＳＴＣ单片机结合，数码管显示，最新成果 无错误，放心下载-Temperature control chip DS18B20, combined with the STC Single-chip, digital display, the latest results of error-free, rest assured Download

本人收集和自己写的部分51系列例程,供各位参考-I collect and write their own routine part of 51 series for your reference

VB串口通讯实例 高精度电压表(24bit) VB源程序，很不错的，不信你就来看看！-VB serial communication example high precision voltage meter (24bit) VB source code, it is good, do not believe you take a look at!

由单片机组成的仿三菱可编程控制器 能完成所有逻辑控制(即PC)功能，并对机床全部输入信息进行处理；具有最优性能价格比-Composed by the single-chip programmable logic controller like Mitsubishi to complete all the logic control (ie, PC) function, and machine tool for processing all input information with optimal price-performance ratio

本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器，实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮，倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出，显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示。本系统实用性强、操作简单、扩展功能强。 -The system uses MSC-51 series single-chip ATSC51 and programmable parallel I/O interface chip 8255A-centric device designed to control traffic lights, can be achieved in accordance with the actual traffic flow through the P1 port 8051 chip set red, green fuel Liang function of time traffic light cycle, the countdown five seconds left when the yellow light flashing warning (traffic lights through the PA output signal indicates the time directly through the PC port output 8255 to double-digits) vehicle alarm闯红灯 green time traffic flow can be detected through a double-digital display. The system practical, simple and strong extensions.

TI芯片DAC8501驱动程序，DAC8501是TI公司的高精度16位，高速率DA（数模）转换器 MAXIM公司12位高精度AD（模数）转换器MAX189驱动-TI chip DAC8501 driver, DAC8501 is TI

最近作的AD9852的FM扫频模式，自动计算频率，采用单片机的总线访问方式，非常方便，你要做 的就是填数-Recently, the AD9852 for the FM sweep mode, automatic calculation of the frequency of the use of single-chip bus access method, a very convenient, you have to do is fill in a few