ACurrent-ModePowerSigmaDelta

说明：  stm32f103测正弦波、方波的波形频率。(Measurement of waveform frequency by STM32F103.)

hd7279常用的功能命令集合，里面可以使用自己需要的几个功能(hd7279 ordered collection of commonly used functions, which may be required to use their own a few of the features)

stm32f107vc 读写ch375扇区,在电路板上测试通过(stm32f107vc read and write ch375)

语音电子门锁C语言程序，STC89C51D+ISD4002应用(Voice electronic lock C language program, STC89C51D+ ISD4002 application)

子带编码是一种以信号频谱为依据的波形编码方法，首先用一组带通滤波器将输入信号按频谱分开，然后让每路子信号通过各自的自适应PCM编码器（ADPCM）编码，经过分接和解码再复合成原始信号。(In sub-band coding is a waveform signal based on the spectrum coding method using a first set of band pass filters to separate an input signal spectrum, and so that each signal path through the respective adaptive PCM coder (ADPCM) encoding, after tap and then combined into the original decoding signal.)

全自动可遥控旗帜升降系统以AVR单片机为核心，由PWM对电机进行变频调速，高精度光电编码器测速，闭环式电路控制。能够利用按键输入相应的指令控制旗帜的升降，还可以实现在特定位置停留的功能。利用LCD可以显示旗帜的实时高度和相应的控制命令，用LED指示旗帜是否处于半旗状态，具有语音提示报警功能，并可利用无线模块实现遥控功能，准确均匀地实现旗帜的升降(Automatic landing system can be remote-controlled flag to AVR microcontroller core of the PWM VVVF motor, high-precision optical encoder gun, closed-loop control circuit. Enter the appropriate button to take advantage of the command control of the rise and fall of the flag, but also can stay in the function of a specific location. LCD can display the banner of the use of real-time high and the corresponding control command, the LED is directed at the flag half-mast, and alarm functions with voice prompts, and the use of wireless remote control function module, to achieve uniform and accurate take-off and landing flag)

低能耗、高性能的3G-SDI 解决方案,高清晰度串行数字接口(HD-SDI) (SMPTE 292M/259M Serial Digital Cable Driver,SMPTE292M-1998,SMPTE424M-2006)

汽车道路谱的测试与相关的数据处理技术研究(Research on the technology of the measurement of the road spectrum of the automobile and the related data processing technology)

stm32103RB资料(参考代码)标准例程，包括源代码和pdf解析，有灯，按键，终端，PWM，显示屏，adc，iic，spi，flash，usb等等56个实验例程(Stm32103RB data (reference code) standard routines, including source code and PDF parsing, with lights, keys, terminals, PWM, display, ADC, IIC, SPI, flash, USB and so on 56 experimental routines)

以dac7811带动的宽放的编写程序， 以dac7811带动的宽放的编写程序 以dac7811带动的宽放的编写程序，，(In dac7811 driven liberalization of programmingIn dac7811 driven liberalization of programming)