89C51

单片机CPU时序-SCM CPU timing

8019和51单片机的接口电路-8019 and 51 MCU Interface Circuit

串口模拟程序，与电脑联机使用，使用51单片机。-Serial simulation procedures, and computer on-line access, the use of single-chip microcomputer 51.

大学毕业设计作品：出租车计价器的设计：以AT89S52单片机为中心，通过金属传感器来测距，实现对出租车的计价统计。结合语音芯片ISD4004，时钟芯片DS1302，功放模块LM386N组成语音时间控制系统，最后通过液晶显示模块LCD12864显示单价、路程、总价、时间等。本系统可以实现单价、起步价、白天价、夜间价的显示和时间的修改。AT89S52通过P0口与外部语音报价电路相连，可以实现语音报价功能。-Graduated from college design work: the design of a taxi meter: The AT89S52 microcontroller as the center, ranging through the metal sensor to achieve statistical valuation of the taxi. Combination of voice chip ISD4004, clock chip DS1302, composed of voice amplifier module LM386N-time control system, the final adoption of liquid crystal display module LCD12864 show unit price, distance, total price and time. This system can achieve unit price, starting at daytime price, prices shown at night and the time changes. AT89S52 through the P0 port with an external circuit connected to voice offer, you can offer voice functionality.

LCD液晶显示设备运行状态自动显示器单片机源程序-LCD display device running automatically displays SCM source

1602A液晶屏60分钟循环秒表-1602A LCD screen 60-minute cycle stopwatch

详细讲述10种经典的软件滤波算法，很通用。适合初学者。-A detailed account of the 10 kinds of classic software filtering algorithm, it is common. Suitable for beginners.

功能：arm7平台的I2c驱动程序，硬件I2C软件包，利用中断方式操作。 * 说明：主程序要配置好I2C总线接口(GPIO、总线时钟)

C8051F32X的usb通信例程，包含C语言、驱动及上位机编程-C8051F32X the usb communications routines, including C language, and the PC-driven programming

PS/2接口协议详解，其中对PS2键盘核鼠标的命令作了详细介绍，可以供广大想作单片机键盘鼠标接口的同志学习-PS/2 interface protocol Hi, PS2 keyboard to the mouse nuclear order, was introduced in detail. to be available to all for a keyboard and mouse interface MCU comrades learning. .