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使用内部硬件SPI，与模拟电流电压输出芯片AD5422通讯。(Using the internal hardware SPI, the analog voltage output current AD5422 chip communication.)

TIF2801的modbus协议程序，带仿真函数(Modbus for TIF2801)

基于430g2233的温度程序，有18B20和PT1000，两种传感器(The temperature program based on 430g2233)

stepper motor example with proteus

Simple app that communicates with the iPhone/iPod/iPad serial port for debugging/hobbyst purpose.

J1939 protocol description

单片机用P1口显示红外遥控器的按键值，单片机的应用(Display the key value of the infrared remote control, microcontroller MCU with P1 port)

利用PID算法控制PWM输出电压，实现串联型数控电源，通过键盘输入控制期望电压(PID algorithm to control the use of PWM output voltage to achieve tandem CNC power, through the keyboard input control voltage expectations)

LPC210X 定时器与串口通讯驱动源码(LPC210X timers and serial communication driver source code)

基于51单片机的信号发生器 四种波形显示 有级调频(Based on 51 single-chip signal generator)