基于8051单片机的模拟PS/2键盘的驱动程序，使用keil c51编译。

老外做的软件实现DTMF-foreigner Software DTMF

显示数据处理（拆数字）.mcu控制LCD显示数字时的拆数程序，可拆int型整数和float型浮点数，所拆数存放于全局变量 数组中。-Show the data processing (down figure). Mcu control the LCD shows the number of figures at the time of demolition procedures, removable int type integer and float-type floating-point numbers, the demolition of a few global variables stored in the array.

ps2键盘的命令集，编写键盘驱动时有用。EDH:置位/复位 LED 指示器。键盘右上角有三个 LED 指示器,分别反映 Caps、Num 和 Scroll 三个键的 锁定情况。参数字节如表 2 所列。 -ps2 keyboard command set, the preparation of useful keyboard-driven. EDH: Set/reset LED indicator. The upper right corner of the keyboard has three LED indicators, respectively, reflecting the Caps, Num and Scroll Lock keys in three cases. Parameter bytes as listed in Table 2.

RC500 MF1 非接触读卡器 开发板 资料-Demo board of philips rc500 chip hv Ev Kit of it and all datasheet

IAR中S3C44B0X 示例程序，IAR中S3C44B0X 可以通过该模板进行开发-IAR in S3C44B0X sample procedures, IAR in S3C44B0X can be developed through the template

read and write eeprom,at24c512.debug finished pass.

mcs51平台的SA866AE控制程序．用I/O口模拟spi，高质量代码．-mcs51 platform SA866AE control procedures. With I/O port simulation spi, high-quality code.

8051 Asmbly Language of a Timer with Matrix Keypad Input

《模拟I2C总线多主通信的通用软件包》,支持多主竞争，比如有多个单片机和I2C器件同时工作。- Simulation of multi-master I2C bus communications generic package to support multi-master competition, for example, has a number of SCM and I2C devices work at the same time.

基于msp430f149的BC7281显示程序，在iar平台开发的．-BC7281 show based on the MSP430F149 procedures iar platform.