UART

c8051f040 spi功能，硬件spi读写w25X系列EEPRom，包括各寄存器初始化函数(the the c8051f040 spi function hardware spi read and write w25X series EEPRom, including the register initialization function)

C8051F060 AD转换中断程序，示例程序分享(C8051F060 AD conversion interrupt program, sample programs share)

基于ST7920A控制器的128*64液晶驱动程序，包括汉字，字符，字符串，以及图形显示。可显示任意长的中文及字符串。(ST7920A controller based on the 128* 64 LCD driver, including Chinese characters, characters string, and graphics. Show arbitrarily long string and Chinese.)

2相四线八拍步进电机程序，可以正转反转，加减速(2 phase four line 8 stepper motor)

用于计算同步电机发生三相短路故障时，功角随时间的变化关系。(For the calculation of the three-phase short circuit fault occurs synchronous motors, power angle changes with time.)

说明：  介绍了一种用加速度传感器测量振动位移信号的方法。 该方法采用频谱转换法，首先将加速度谱转换成位移谱，再计算出位移谱中每个频率分量对应的幅值 、圆频率和初相角，最后对各位移分量进行叠加得到振动位移的时间历程。 验证试验结果表 明该方法 可行 ， 精度可满足工程 实践的需要 。(A method of measuring vibration displacement signal with acceleration sensor is introduced. In this method, the acceleration spectrum is first converted into displacement spectrum, and then the corresponding amplitude, circular frequency and initial phase angle of each frequency component in the displacement spectrum are calculated. Finally, the time history of the vibration displacement is obtained by superimposing each frequency component. The test results show that the method is feasible and the accuracy can meet the needs of Engineering practice.)

显示屏的设计，是用51单片机做的，对初学的好有用(display is designed to use 51 microcontroller done, a good pair of useful learning)

51单片机16*16点阵 使用指针显示汉字(Using pointer to display Chinese characters)

说明：  我使用的是F103VET6，软件IIC控制，改引脚配置后可方便移植。 SDL连接PB6、SDA连接PB7、CS连接高电平，SDO连接高电平的话模块的写地址为0x3A、读地址为0x3B··· ···(I use F103VET6, software IIC control, pin configuration can be easily transplanted. SDL connects PB6, SDA connects PB7, CS connects high level. SDO connects high level telephone module with write address of 0x3A and read address of 0x3B.)

激光深熔焊接过程中小孔行为的数值模拟，同时获得自由表面并在其自由表面上添加气化压力的udf，获得想要的流速场。(Modelling of keyhole dynamics and porosity formation considering the adaptive keyhole shape and three-phase coupling during deep-penetration laser welding)