DELAY100US

本设计主要实现用按键控制步进电机四相单拍、四相双拍和四相八拍三种方式切换， 正、反转及其加、减速，并能在LCD上显示其运行状态（速度和转向）。(The design of the main keys to achieve control of stepper motor with a single shot four-phase, four-phase two-and four-phase eight-shot shoot three ways to switch Positive, reverse its acceleration, deceleration, and in its operational status on the LCD display (speed and steering).)

说明：  stm32f429 eeprom iic mdk环境(Stm32f429 EEPROM IIC MDK environment)

说明：  modbus协议，详细讲解了协议具体实现方法。(Modbus protocol, the specific implementation of the protocol explained in detail.)

基于C51控制，LM621驱动，数码管显示(BLDC control, based on DSP, LM621 driver, digital tube display)

三相电压型SVPWM整流器的仿真，将双闭环方法与矢量控制方法相结合(The simulation of three-phase Voltage SVPWM Rectifier will double-loop vector control method and the method of combining)

msp430实现12864的菜单显示功能(msp430 realization of the menu display 12864)

利用51单片机驱动ADC0809，实现对滑动变阻器的位置读取。(51 Microprocessor ADC0809, read the position of the sliding rheostat.)

说明：  读写SD卡的头文件，MMC，不含fat文件系统。(Read and write SD card.)

用mage128产生spwm驱动ir21094构成的逆变电源，小功率时波形正常。(Switching power supply system procedures mage128 parallel development board to achieve two-way current pro rata, the regulator output.)

C51 编的音乐程序，关于如何编制音乐代码, 其实十分简单，频率常数即音乐术语中的音调,而节拍常数即音乐术语中的多少拍(C51 music program)