自己移植的NXP ARM IAP程序，其部分基本函数源于周立功程序，本人加了详细的注释与移植说明，还有更改编译器环境与启动代码部分说明，按照说明初次使用者便可一...

ADC0809数据采集系统 ADC0809数据采集系统-ADC0809

利用51系列单片机实现四种波形，正弦波、方拨、阶梯波、三角波，采用开关电路实现四种波形转换、放大电路实现波形幅度可调。通过编程实现仿真。-51 Series MCU realize the use of four types of waveforms, sine, square dial, ladder wave, triangle wave, the use of switching circuits to achieve the four waveform conversion, amplifier circuit realize adjustable waveform amplitude. Through the realization of simulation programming.

18b20测温c51程序，由89S52作为主控芯片-18b20 c51 temperature process, from the master control chip 89S52

C51语言的HD7279驱动程序-the HD7279 C51 Driver

Keil公司提供的C51例程(部分源码)，相当实用，适合初学者学习借鉴。-Keil" s C51 offers routines (some source code), very useful for beginners to learn from.

6位数码管显示的频率计，外部方波接到P3.4（T0），测试通过-6-bit digital tube display of the frequency counter, the external square wave received P3.4 (T0), the test

一个有关电子时钟的单片机程序,可显示年月日,以及小时,分秒,可以手动修改时间.-An E clock of the single-chip process, can display date and hour, every minute, can be manually modified.

Elan eKTP8733N单片机开发程序，用于驱动I2C接口。在Elan 公司开发环境中使用。-Elan eKTP8733N single-chip development process, used to drive I2C interface. Elan has developed in the environment.

用终端仿真接收显示和控制来玩游戏，c51编写的“贪吃蛇”游戏源程序。-receiver display and control to play games, c51 prepared by the "Snake" game source.

8253的初始化程序举例: 例1：选择2号计数器，工作在3方式，计数初值为533H（2个字节），采用二进制计数。其初始化程序段为 MOV DX，307H ；命令口 MOV AL，10110110B ；2号计数器的初始化命 令字 OUT DX，AL ；写入命令寄存器 MOV DX，306H ；2号计数器数据口 MOV AX，533H ；计数初值 OUT DX，AL ；选送低字节到2号计数器 MOV AL，AH ；取高字节送AL OUT DX，AL ；后送高字节到2号计数器 -8253 initialization procedures examples : Example 1 : Select counters on the 2nd, in three ways. Counting for the initial 533H (2 bytes), a binary counting. Initialization of its procedures for MOV DX, 307H; I ordered MOV AL, 10110110B; on the 2nd Counter initialize command word OUT DX, AL; write commands Register MOV DX, 306H; data on the 2nd Counter I MOV AX, 533H; Counting initial OUT DX, AL; low-byte sent to the 2nd Counter MOV AL, AH; With a high-byte send AL OUT DX, AL; evacuations high byte counter to the 2nd