用89c2051模拟产生dtmf信号，广泛用于防盗报警、电话数据传输等；节省发号及收号电路，成本低。-with 89c2051 simulation of DTMF signals, widely used in anti-theft alarm, telephone data transmission; Savings and resumption of the circuit, and low cost.

lcd1602的asm液晶点亮通用程序-asm of lcd1602 lit LCD common procedures

ARM I2C 通讯软件(中断方式）,通过此程序，可以方便的完成CPU 和其他芯片之间的I2C通讯。-I2C communication with ARM (INT mode)，by it, could do communication between CPU and other chip.

用数码管和4X4键盘做的简易计算器,有protuse原理图和程序-4X4 digital control and the keyboard to do simple calculator, a schematic diagram and procedures protuse

实现一个基于8051单片机控制的4相步进电机系统 ，由单片机产生正确的驱动脉冲信号。-8051 based on the realization of a controlled 4-phase stepper motor systems, from single-chip driver generate the correct pulse signal.

显示驱动芯片HT1621的C51底层程序-display driver chip HT1621 the bottom procedures C51

AVR单片机入门及C语言高效设计实践（六） ATMEAG16L的定时／计数器 ATMEAG16L有两个8位定时／计数器（T／C0、T，C2）和一个16位定时／计数器T/C1）。每一个计数器都支持PWM（脉冲宽度调制）输出功能。PWM输出在电机控制、开关电源、信号发生等领域有着广泛的应用。[第一段]-AVR C language portal and efficient design practice (6) ATMEAG16L the timer/counter All ATMEAG16L two 8 timer/counter (T/C0, T, C2) and a 16 timer/counter T/C1). Each counter support for a PWM (pulse width modulation) output function. PWM output in motor control, switching power supply, signal and other fields has wide application. [Paragraph]

PIC16C5X反汇编源代码!只要建好表格,反汇编其实很简单!-PIC16C5X disassemble the source code! As long as the completed form, anti-compilation is actually very simple!

这是一个用24C02做的IC卡完整程序,拿来可用的,我用的产品.不多说.自己看吧-This is a 24C02 to do with integrity of the IC card procedure, used to use, I used the products. Little.自己看吧

c8051f020 ADC0 的简单应用-c8051f020 ADC0 simple application