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此程序可实现长度为8位，周期为255的m序列，此序列可当做伪随机信号发生器，模拟信道噪声。(This procedure can achieve the length of 8 bits, the m sequence of 255 cycles, the sequence can be used as a pseudorandom signal generator, analog channel noise.)

基于ADI公司的DDS芯片AD9850的数字信号发生器源程序(ADI AD9850 DDS chip-based digital signal generator source)

说明：  基于STM32F405平台下的SD卡读写测试，移植FatFs文件系统。(Based on the SD card read-write test of stm32f405 platform, the FatFs file system is transplanted.)

提供PSCAD的断路器模型、DC2DC模型，适合初学者。(Provide PSCAD circuit breaker the model, DC2DC model, suitable for beginners.)

DM430-L型最小系统板4位独立按键测试程序 按不同的按键，显示不同的LED灯(DM430-L minimum the system board four independent key test procedures )

通过STM32,实现指针式电子时钟编程的方案。(The Scheme of Implementing Pointer Electronic Clock by STM32)

说明：  STM32单片机6路ADC采样文件，并实现DMA传输，相当有参考价值(Bit Band of STM32 Single Chip Microcomputer)

说明：  51单片机的eeprom和iic通信软件模拟程序(Eeprom and IIc communications in 51 single chip machines)

说明：  Mifare天线设计资料.包含一天线感值计算软件,使天线设计变得很简单(Mifare antenna design information. One line contains flu value calculation software, antenna design becomes very simple)

说明：  STM32F407驱动SPI屏幕，采用的是模拟SPI(STM32F407 drives SPI screen, using simulated SPI)