spi

读取ssdt函数当前地址，详见源码中、。。。。(Ssdt function reads the current address, see the source code. . . .)

单片机音频通信9170和9200，接收发送源程序(9170 and 9200 microcontroller audio communication, the receiver sends source)

基于STM32F4的四轴航拍平台。以STM32F407为控制核心，四轴飞行器为载体，辅以云台的航拍系统。硬件上由飞控电路，电源管理，通信模块，动力系统，机架，云台伺服系统组成。算法上采用简洁稳定的四元数加互补滤波作为姿态解算算法，PID作为控制器，实现飞行，云台增稳等功能(Four axis aerial platform based on STM32F4. Taking STM32F407 as the control core, the four axis flying vehicle as the carrier, and the aerial camera system with ptz. The hardware is composed of flight control circuit, power management module, communication module, power system, frame and PTZ servo system. The algorithm uses a simple and stable four yuan number plus complementary filtering as the attitude calculation algorithm, and PID is used as a controller to achieve flight, PTZ stability, and other functions)

说明：  对舵机的调试功能，通过多个舵机完成整个机器人的拼凑，进而完成机器人跳舞的任务。(The debugging function of the steering gear completes the assembly of the whole robot through multiple steering gear, and then completes the task of robot dancing.)

which will use for MPC837XERDB when programming

可虛擬兩個RS-232或者是多個RS-232互傳資訊，此源码維Visual Basic所編寫。(Can be a virtual two RS-232 or RS-232 over pass each other information, this source code written by Visual Basic dimension)

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))

交通灯的开发，实现主道停留60秒，干道停留20秒，出现紧急情况采用按键控制(The development of traffic lights, the main road to stay 60 seconds, the trunk stay for 20 seconds, the event of an emergency using the button control)

通过一个简单例子，说明C语言对于学习单片机的重要性，有助于新手的入门.(By a simple example to illustrate the C language for learning the importance of SCM to help novice entry.)

8255输入输出实验程序代码，适用于LAB8000通用微控制器实验系统(8255 input-output experimental procedure code applies LAB8000 general-purpose microcontroller experimental system)