DS12887pro

系统侧的电压在0.04秒到0.06秒发生15％的电压跌落，在0.06 秒到0.07秒分别加入了3次和2次谐波，幅值分别为基波电压的20％和15％，相位分别为负25度和35度。(System voltage side occurs in 0.04 seconds to 0.06 seconds 15 of the voltage drop in 0.06 seconds to 0.07 seconds and 3 were added to the second harmonic amplitude of 20 and 15 of the fundamental voltage, phase, respectively negative 25 degrees and 35 degrees.)

基于51单片机的proteus仿真系统，其中包括AD转换模块的应用(51 single-chip microcomputer-based simulation system of proteus, including the application of AD converter module)

与沉默的开关为iOS，精选ios编程学习源码，很好的参考资料。(And the silence of the switch is iOS, select learning IOS programming source code, a good reference.)

STM32系列芯片库,包含209个STM32系列芯片原理图，可用于altium designer原理图设计(STM32 series chip library containing 209 STM32 series chip schematics, can be used for altium designer schematic design)

说明：  自己编写的一部分完整代码，是学习arm9的好工具，这个程序是针对s3c2440的。能够实现按键检测，led显示和串口的打印。(I have written part of the complete code, is a good tool for learning arm9, this program is for s3c2440' s. To achieve key detection, led display and print the serial port.)

倍福Beckhoff TWINCAT2 获取系统时间功能块(Beckhoff TWINCAT2 gets the system time function block.)

有关布线系统的一套说明，比较详细，适用于初学者。(the wiring system of a set of notes that the more detailed, applicable to beginners.)

单片机控制的音乐播放器的proteus仿真以及源程序，导入单片机通过测试过能正常工作，希望对须要的人有所帮助。(Music player SCM proteus simulation and control of the source code, import the microcontroller through tested to work properly, we want to help people who need.)

DAC DMA成功输出正弦波，详细说明在程序中都有备注(DAC DMA Successfully Output Sinusoidal Wave)

s应广和si470x收音模块功能代码，还有lcd显示(S wide and si470x radio module function code, and LCD display )