程序采用枚举法,顺序获取u

PCF8563 的驱动程序，用两个普通的IO口模拟I2C总线，包括100KHZ（T=10US）的标准模式选择和400KHZ的快速模式选择，默认11.0592MHZ的晶振-PCF8563 of the driver, with two ordinary analog IO I2C bus, including the extremely low distortion (T = 10US), the standard model selection and 400KHZ fast mode selection, the crystal default 11.0592MHZ

利用mega128控制由L298和L297构成的驱动板，驱动步进电机-Mega128 control using L298 and L297-driven composition of boards, stepper motor driver

单片机电子琴，可以通过单片机按键弹奏乐曲单片机采用89C52.-SCM flower, the MCU can play music keys used 89C52 microcontroller.

电风扇，带遥控功能，可通过遥控实现转头，换档等功能。-μ?? ?????? ?? ??

本文具体介绍了怎样利用Intel公司的8051单片机设计和实现一款低成本的可配置性的单路电话计费器。-This article describes how to make use of specific Intel s 8051 Design and Implementation of a low-cost configurability of one-way billing phone browser.

单片机C语言的精确延时程序设计，很有用的哦- The monolithic integrated circuit C language precise time delay programming, is very useful oh

51单片机制作的电子钟，增加日期显示，带有详细的注释。-51 MCU production of electronic bell, the date of increase, with detailed comments.

HT24 系列的EEPROM 总共8 个管脚，三个为芯片地址脚A0、A1、A2，在单片机对它进行操作时，从SDA 输入A0、A1、A2 数据和芯片外部A0、A1、A2 所接地址需一一对应。一个为芯片写保护脚WP，WP 脚接低电平时，芯片可进行读写操作；WP 脚接高时，芯片只可进行读，不可进行写。 另外两个管脚为电源脚VCC，VSS。 用单片机对HT24 系列的EEPROM 进行控制时，HT24 系列的EEPROM 的外部管脚VCC、VSS、WP、A0、A1、A2 根据需要，对应接上，SDA、SCL 接到单片机控制脚上。-HT24 Series EEPROM total of 8 pins, three pins for the chip address A0, A1, A2, in the microcontroller to operate it, from SDA input A0, A1, A2, and chip external data A0, A1, A2 of the Then one correspondence address must be in. One for the chip, write-protect pin WP, WP feet then low, the chip can be read and write operations WP pin is high then, the chip can only be read, not write. The other two pins for the power pin VCC, VSS. With the microcontroller on the HT24 Series EEPROM control when, HT24 Series EEPROM external pin VCC, VSS, WP, A0, A1, A2 according to the needs of the corresponding connected, SDA, SCL receives SCM control feet .

430学习书籍,好东西,希望大家下载-430 learning books, good things, I hope everyone downloads

利用NRF9e5芯片编写的C51源代码，可实现点到点无线通信接收部分。-NRF9E5 chips prepared using C51 source code, can be achieved to receive part of point-to-point wireless communications.