huguang

一个简单的定时器定时0.5s和1s程序，指在教导新手如何使用定时器(A simple timer timer 0.5s and 1s procedures, means to teach novices how to use the timer)

DIYMP3，能智能播放，很好的运用了STM32系统相关知识，花费了我将近半年的努力，基本上包含了STM32所有功能的应用。(DIYMP3, play to intelligence, very good use of the STM32 system related knowledge, it took me about half effort, basically contains all STM32 function application.)

通过WM_DEVICECHANGE来检测u盘的传播者源代码(through WM_DEVICECHANGE to detect u site promoters source code)

说明：  模数转换ADC0832，基于51单片机的c语言程序(Analog to digital converter ADC0832, based on 51 MCU c language program)

基于stm32的bldc驱动，有hall位置传感器，电流传感器采样，方波驱动。(Based on stm32 BLDC drive motors, hall position sensor, current sensor sampling, square wave drive.)

自动交通控制系统用红、绿、黄三支共两组发光二极管表示交通信号灯，利用单片机模拟有时间显示的定时交通信号灯控制管理。信号灯的变化规律可如下： 1）放行线：绿灯亮放行25秒，黄灯亮警告5秒，然后红灯亮禁止。 2）禁示线：红灯亮禁止30秒，然后绿灯亮放行。 3）当某一方向的红灯亮时，若该方向有车通过，则用扬声器声报警。（撞红灯信号可用3-5V模拟量表示）(Automatic traffic control system using red, green, yellow light-emitting diodes, said a total of three traffic lights, the use of single-chip analog time display on a regular traffic signal control and management. Changes of lights to be as follows: 1) Release Line: green clearance 25 seconds, the yellow light warning for 5 seconds, then the red light is prohibited. 2) ban shows lines: the red light is prohibited for 30 seconds, then the green light to release. 3) When the red light in one direction, if the direction of the car through, the alarm speaker sound. (Hit the red signal available 3-5V analog representation))

MSP430实现的多级菜单功能，采用OLED实现，占用Ram量较少(MSP430 realize multi-level menu functions, the use of OLED achieved occupancy of less Ram)

底层调用了PCSC的通信库Winscard，可用于PC上读卡器与智能卡的通信(It calls the underlying communication library Winscard PC can be used on a PC to communicate with the smart card reader)

一个鼠标基于C8051f340为核心的USB鼠标程序，在开发板上已调可用。用Keil打开。(A mouse-based core C8051f340 USB mouse program has been transferred is available on the development board. Opened with Keil.)

基于RS485的简单现场总线通信系统设计，功能如下：单发单收，在发送状态，能够连续发送从0到99的数字； 单发单收，在接收状态，能够接收数据，并在数码管上正确地显示出来； 单发多收，在AB完成的基础上，接上多个接收设备，能够正确发送和接收； (Based on a simple RS485 field bus communication system design, the following functions: single single collection, sending state, can be continuously transmitted from 0 to 99 single single collection, in the receiving state, capable of receiving data and digital tube correctly displayed single overcharged, on the basis of completion of the AB, connected to multiple receivers, can correctly send and receive )