51系列单片机读卡程序，本人亲测，适合考勤、门禁。

QG8_demo学习板开发板例程 ｉ２ｃ的例程，辛苦找来。 经过验证是正确的。-Board development board QG8_demo learning routines i2c routine, it is tough to get a large. Verified to be correct.

液晶显示模块。在lcd上显示数字的函数。-display of the lcd

_MCS-51单片机实用子程序库_MCS-51 single-chip utility subroutine library-_MCS-51 single-chip utility subroutine library

一个4*4键盘程序，当有按键按下时将在数码管上显示出按下的字符-A 4* 4 keyboard procedure, when the button is depressed will have in the digital control on the press shows that the characters

系统can地址为550,用于can系统测试,应用T0定时器每隔1s向can总线发送一组数据:数据长度为8个字节, 首字节为05H,第二个字节为累加变量,每秒钟数值增加1,-system can address 550 for the test system can, Application T0 1s to every timer can send a bus of data : data length of 8 bytes the first byte of 05H, the second byte of cumulative variable, an increase in value per second.

英飞凌C166之XC164CS的IO读写操作程序-Infineon C166 of the IO to read and write operating procedures XC164CS

nRF24L01_EVB开发板试验头文件。-development board nRF24L01_EVB test header file.

ds1631温度传感器程序，I2C总线的，好用-ds1631 temperature sensor procedures, I2C bus, easy to use

flow of ic design是一个很好的关于如何去设计ASIC的的教程，虽然是英文的，但是很容易看明白。是每一个想在EDA领域有作为的人都应看的教程！-flow of IC design is a good design on how the ASIC Guide, in English, but can easily understand this. Every one of the EDA to the field as a person should look at the handbook!

基于单片机8051的嵌入式开发指南.pdf 电子工业出版社-Based on the 8051 single-chip embedded development guide. Pdf Publishing House of Electronics Industry