好实用的好东东，快下呀！

ARM键盘驱动程序，配合液晶用于人机交互，使用AT91M55800的IRQ0-IRQ5作为六个按键输入，实现多种功能-ARM 键盘驱动程 Saitama, 配合 twist 晶 sputum party 人机交互, Jia sputum AT91M55800 的 IRQ0-IRQ5 scales coffin thirst 六个按键 入, Ke-jun 多 Lo 功能

this program is for a digital clock in asm language-this program is for a digital clock in asm language

使用PROTUES仿真，C语言编程，8255与89C51控制LED的时钟电路。-Use PROTUES simulation, C language programming, 8255 and 89C51 control LED clock circuit.

PowerPac 文件系统使用手册-PowerPac File System manual. . . . . .

fpga/CPLD开发管理Digit-Serial DSP Functions-fpga/CPLD Development and Management of Digit-Serial DSP Functions

RTOS 51代码-RTOS code

是modbus的C写的源代码,可移植到任意的芯片.该代码用在freescale 芯片.用的是大端模式.如果到小端模式的芯片需要稍微修改一下.-Is the modbus source code written in C, portable to any chips. The code used in the freescale chips. Using a big endian mode. If the little-endian mode of the chip need to be slightly reformulated.

一个关于温度控制系统电路图、PCB和原理图-A temperature control system on the circuit, PCB and schematic

是用51的IO模拟SPI口和CH374通讯，完成对U盘的读写，优点是占用系统资源少！-With 51 analog IO port and SPI communication CH374, U disk to complete the reading and writing, the advantage of occupying less system resources!

自动升降电梯控制器设计 要求： 设计一个6层楼的电梯控制器。 该控制器可控制电梯完成6层楼的载客服而且遵循方向优先原则，并能响应提前关门延时关门，并具有超载报警和故障报警； 同时指示电梯运行情况和电梯内外请求信息。-Auto-Lift elevator controller design requirements: design of a six-story elevator controller. The controller can control the completion of six-story elevator containing the principle of giving priority customer service, and follow the directions, and can respond to close ahead of schedule delay closing, and has overload alarm and fault alarm also instructed the elevator and elevator operation request information both inside and outside.