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STM32运用PID控制DA输出电压稳定，可以设置。(STM32 using PID control DA output voltage stability, can be set.)

很不错的C语言秒表程序,还带PROTUS仿真文件,直接就可以运行,调试过正常,很不错哟(C language is very good stopwatch program, but also with PROTUS simulation file can run directly, commissioning lead a normal, very good yo)

led relation document

For scheduling work on the main thread. This also serves as our global lock.

DS1302时钟芯片，MCU STC12单片机 uart显示(DS1302 clock chip, MCU STC12 microcontroller uart display)

基于STM32微处理器的SD卡（TF卡）文件系统读写. 103ZC,ZD等有SDIO，检查中。(This is a simple demonstration, based on STM32 and working with ST Evaluation board MB525 revA (old board), using the Embeddeded Library File System “EFSL” with an "SD" memory card in order to explore the contents of this SD card and show, on the LCD color, the Tree of directories/files within the SD card and read files contents. PS: in last boards ( rev B) you should modify the joystick driver to get it working fine. )

用PIC单片机实现带音乐播放的电压表,最高实现3.3V的电压测试(PIC mcu)

MPPT最大功率跟踪算法，用C语言编写的。(MPPT—c Programme)

毕业水温控制论文，基于c51单片机为核心，利用DS18B20检测，蜂鸣器报警，并用数码管来显示，精确度到0.1°。(Graduation thesis temperature control, based on c51 microcontroller core, use DS18B20 detection, alarm buzzer and come with a digital display, accuracy to 0.1.)

说明：  传统的波形发生器采用模拟技术的方法，这种方法构成的波形发生器电路结构复杂，仅能产生正弦波、方波、锯齿波和三角波等几种简单波形。而现在在高科技领域，我们需要的可能是一些任意波形，如在保密雷达发波等军事方面和地震波形、汽车碰撞波形等模拟仿真应用方面。任意波形发生器现在被广泛用于自动控制系统、振动激励、仪器仪表领域。我国目前在这方面还比较落后，特别是在用DDS技术实现任意波形发生器方面。本课题我们打算用DDS技术基于FPGA核心板设计一个任意波形发生器。该仪器我们用LabVIEW来写的控制面板实现与FPGA的通信，实现任意波形数据的采集，并具有良好的人机交互界面。用液晶显示屏显示波形的幅度和频率。用4×4键盘控制相关波形的输出。用AD和低通滤波电路实现数电到模电的转换(The traditional waveform generator adopts the method of simulation technology, this kind of method constitute the waveform generator circuit structure is complex, can only produce sine and square-wave, sawtooth wave and triangular several simple waveform. And now in the high-tech fields, we may need some arbitrary waveform is, as in LeiDaFa confidential military aspects and seismic waves, automobile collisions wave wave simulation application. Arbitrary waveform generator is now widely used in automatic control system, vibration, instruments field. At present in this respect, especially in still lag behind with arbitrary waveform generator DDS technology. This task we intend to use DDS technology based on FPGA core board design an arbitrary waveform generator. The instrument to write with LabVIEW, we realize the control panel and FPGA communication, realizing arbitrary waveform data acquisition, and has good human-machine interface. With LCD display wave amplitude and frequency. Use 4 )