protel99se的十来个元器件库文件。希望对大家画图的时候能起到帮助。...

/*P89CXX计算机程序员发送*//*所需定义编程cpu类型0:P89C51 1:P89C52 2:P89C54 3:P89C58 4:P89C51RC 5:P89C51RD*/

采集端程序，可以搜所电信号，每次可以采集32个信号，可以用于检测信号好差。-acquisition software, can be found by the electrical signal that can be collected each 32 signal can be used to detect bad signal.

DDS数字信号发生器,采用AD9835DDS 专用芯片 输出范围1K--10MHZ 采用X25045作看门狗及数据存储器，用于设置各项参数的存储 内含电路图， 源程序 及一些相关资料-DDS digital signal generator, using AD9835DDS ASIC output range 1K-- Knoxville watchdog for the use of X25045 and data memory, used to set various parameters of storage containing circuit, the source and related information

CAN控制器的C源码-CAN controller C source

STC12c5410AD PWM

奉献：AT45DB041读写程序 [日期：2005-11-29] 来源：侃单片机 作者：etiller [字体：大 中 小] -Dedication: AT45DB041 read and write procedures [Date :2005-11-29] Sources: McCain Singlechip Author: etiller [Font: Xinhuanet]

单片机I2C总线通信：主器件函数库，从器件函数库，单主器件I2C总线模拟子程序-Single-chip I2C bus communication: the main library device, from the device library, a single I2C bus master device simulation subprogram

设计了一个单片机的原理图，并制作了相应的PCB版图，测试后程序运行正常-Designed a microcontroller schematics and produce the corresponding PCB layout, test program runs normally

这是我用汇编语言编写的计时器程序，通过计算机发命令开始倒计时，其中也有其他功能，但主要是倒计时，比较好用，这是个小程序，穿上来了表心意-This is the language I used compilation prepared by the timer procedures, through the computer started the countdown orders, which also has other functions, but the countdown is more convenient, it is a small program to put on the table liking