Frequency-calculate

基于51单片机的32和弦音乐盒程序，有曲目切换，音量调节，播放时间，步进电机驱动，流水灯等功能，是普通音乐的升级版本，且代码清晰，注释完整，结构合理。(Based on 51 single-chip 32 polyphonic music box procedures, switch tracks, adjust volume, play time, stepper motor drive, water lights and other functions, is an upgraded version of the ordinary music and clear code, comments, integrity, reasonable structure.)

PSCAD风机（异步机带桨距角控制）经过0.69kV-13.8kV-115kV-345kV三级升压，远距离电缆并入主网模型(PSCAD wind )

STM32的ADC程序，亲测可用。内有详细注释和说明文档，很好的参考资料。(STM32 ADC program, pro - test available. There are detailed notes and documentation, good references.)

AES128/196/256 加解密源码，可实现ECB模式加密，HEX输出。密码及明文没有补齐功能，需手动补齐。无需特殊库文件，适合单片机使用。已测试，可正常使用。(AES128/196/256 encryption source code, can achieve ECB mode encryption, HEX output. The password and the plaintext without the need to manually fill up function. No special library files, suitable for single use. Has been tested, can be used normally.)

此设计模拟工业控制现场，通过调节Labview界面中的模拟仪表，通过RS232串口通信，把转速控制信息通过串口传送到单片机中，进而利用单片机控制电动机的转速。(labview-based PWM motor speed)

网上买到的 HI3518 下的 简单DVR CODE, 需要你了解 3518 SDK， 才能编译， (Simple DVR CODE HI3518 under buy online, you need to understand 3518 SDK, you can compile,)

ACR38智能读卡器测试用：芯片IC卡等(ACR38 Smart Card Reader test: IC card, etc.)

数字温度计 DS18B20控制的数字温度计(Digital Thermometer DS18B20 digital thermometer control)

这段代码包括了基于STM32对简单小车的循迹壁障以及L298N的驱动。并对其中关键部分进行了注释。(This code includes a simple car-based STM32 tracking barrier and L298N driver. And one of the key parts of the notes.)

tms320F28335是一款新的dsp芯片，svpwm算法的实现和以前的2812等有点不同，现在将我写的分享给大家，已经调试过了，晶振是20MHz。28335的svpwm的实现。(tms320F28335 is a new dsp chip, svpwm algorithm implementation and the previous 2812 and so a little bit different, now I write for everyone to share, debugging, and the crystal is 20MHz. 28335 svpwm implementation.)