pscad的单相接地故障仿真

JTAG 调试原理 , 非常的详细.............(JTAG debugging theory, very detailed)

stm32 串行flash 挂fatfs(fatfs for stm32 and spi flash)

通过定时器在时间上合理的安排，快速准确的对红外遥控器进行操作，同时大大的减少了时间上的消耗，并将此工程封装，便于以后的直接调用(Called directly by a timer set at a reasonable time, the fast and accurate infrared remote control to operate, while greatly reducing the consumption of time, and to this engineering package to facilitate future)

transfer file using sound card

说明：  本系统由单片机及其最小系统模块、热电偶测温模块、AD620信号放大模块、键盘模块、LED时钟显示模块、LCD图形显示模块、串口通讯模块组成。可以实现对多点温度的实时测量、分时显示，用户可以通过键盘选择需要显示的通道，也可以通过计算机上的用户界面查看温度变化，强大的显示功能给用户一个直观的印象。(?? ε ? ??? ??? ? Сε ? ?? dawdle ??煼? ? ?? dawdle AD620?? ?? ?? dawdle?? dawdle LED ? ? ? ?? dawdle LCD ? ?? ? ?? dawdle??? ?? ??? latch? ɡ?? ? ?? π? ? ? ?? ? ?? ?? ? ???-? ? ??? ???? ? ????? ? Ш?? ?? ????? ?? ? ????? ???? trouble? ? ?? ?仯?? ?? ?? ???? ??? ??? 5ē? ???)

用单片机设计超级万年历，该万年历即使掉电也能够实时显示时间(Single-chip design super calendar, the calendar even with power real-time display)

通过RS485端口不停地发送数据0xaa用示波器观察RS485端口A、B信号线上的波形或者用RS485接收器接收发送的字符。(Through the RS485 port to send data continuously 0xaa observed with an oscilloscope RS485 ports A, B signal waveforms or use the RS485 line receiver sends characters.)

针对FastDFS分布式文件系统的功能测试代码(Functional test code for FastDFS distributed file system)

CAN CAN总线 空调智能节电的应用，汇编语言(CAN CAN intelligent saving air-conditioning applications, assembly language)

周立功的I2C核及驱动 周立功的I2C核及驱动(I2C core)