mems

本程序目的是提供使用stm32串口收发一帧数据的一种方法，采用中断方式接受和发送，每进一次中断接收或发送一字节，可以实现pc机与板子通信或板子与板子间通信。注意本程序中外接高速晶振为12M赫兹，而大部分板子为8M赫兹，本程序所用芯片是stm32RBT6(The purpose of this procedure is to provide a method of using STM32 serial port to send and receive a data, using interrupt mode to receive and send, every one into the time interrupt receiving or sending a byte, can realize PC and the communication or board and board communication. Note that this procedure the external high-speed crystal oscillator for the 12M Hz, while the majority of board is 8M Hz, the chip used in this procedure is stm32RBT6)

说明：  异步电动机又称感应电动机，是由气隙旋转磁场与转子绕组感应电流相互作用产生电磁转矩，从而实现机电能量转换为机械能量的一种交流电机。(Asynchronous motors, also known as induction motor, rotating magnetic field by an air gap and the rotor winding induced current interaction of electromagnetic torque, electromechanical energy conversion in order to achieve an alternating electrical to mechanical energy.)

说明：  基于STM32F407ZET6，软硬件SPI协议读写W25Q128FLASH模块(W25Q128FLASH module read and write based on STM32F407ZET6, software and hardware SPI protocol)

说明：  基于stm32f403gz的pwm移相程序，可以调用函数来实现自己pwm波形优化(The PWM phase-shifting program based on stm32f403gz can call functions to optimize its PWM waveform)

CPU正在执行一项任务A，然后突然停止任务A去执行任务B，执行完任务B再回来继续执行任务A的过程。(CPU is performing A task. A, then suddenly stop tasks to perform A task B, perform the task B come back again continue to perform the task A process.)

此为基于单片机的可视听诊器设计。利用C语言实现了驻极体式声音传感器实现的心音数据采集系统功能，利用图形液晶模块实现显示的新型可视电子听诊器功能。(This is based on single-chip design visual stethoscope. The use of C language realization of the electret-type sound of the heart sound sensor data acquisition system, using graphic LCD display module to achieve a new type of visual function electronic stethoscope.)

c8051f020单片机的12864液晶显示 4行汉字 很简单的改变(c8051f020 microcontroller 12864 LCD 4 lines of Chinese characters is very simple change)

三角波、锯齿波、正弦波、方波信号产生器，易于移植(The triangle wave, sawtooth, sine wave signal generator, Fang Bo, easy to transplant)

射频卡协议ISO14443中文版 非接触式(RF card agreement ISO14443 Chinese .doc)

MDK RTX51 开发51单片机，使用RTX，对于初始学者很方便(MDK RTX51 )