I collect and write their own routine part of 51 series for your reference

单片机的串口调试程序，可实现简单的串口通信-Single-chip serial debugging procedures can realize a simple serial communication

KT800综合系统板实验源程序库，非常适合单片机开发的人用-KT800 source integrated library system board experiments, very suitable for development with single-chip microcomputer

AT89C4051单片机的产品手册，详细地说明了AT89C4051单片机的各项性能指标、产品结构和工作原理。-AT89C4051 microcontroller product manuals, detailed description of the AT89C4051 MCU performance, product structure and working principle.

介绍keil c使用的详尽说明，英文版。可以支持较高的keil c版本-introduced a detailed account of the use of English. Support higher Keil c version

这是参加电子设计大赛时的作品：红外遥控小车：用红外线通过一块AT89S52单片机发射信号即编码，并用红外接收头接收信号；接着再用另一块AT89S52单片机对红外发射出的信号编码进行解码，最后再用一块AT89S52单片机用解码所得码值编写程序后驱动步进电机。步进机功能启动后不仅能使受控小车向前后左右四个方向前进和转弯，而且还能控制小车再地上转动并留下方形或圆形等形状。-This is the time to participate in Electronic Design Contest works: infrared remote control car: Using infrared transmission signal through an AT89S52 microcontroller that is encoded and used infrared receiver to receive the first signal and then using the other an infrared emitting MCU AT89S52 code and decode the signal and finally an AT89S52 microcontroller then proceeds with the decoding key value of the preparation of procedures to drive a stepper motor. Stepper machine function activated not only make the car forward in a controlled direction and after about four turns, but also to control the car and then turned and left the ground such as square or round shapes.

飞利浦RC522芯片源代码。该芯片主要针对三表市场和手持设备，支持I2C/SPI/UART接口。 先发布基于普通51单片机的驱动源代码，采用串口接口，无需中断。只要接一个串口，后续会发布基于飞利浦LPC9401的读写源代码！LPC9401也是基于51核，只需连接SPI接口！有公司拿这个源代码卖钱哟-Philips RC522 chip source. The chip targeted at three tables and handheld devices market, support I2C/SPI/UART interface. Based on the first general release 51 MCU-driven source code, using serial interface, without interruption. As long as a serial port access, the follow-up will be issued based on the Philips LPC9401 write source code! LPC9401 is based on the 51 nuclear, only connecting SPI interface! A company with the source code acquisition yo! !

自己写的PWM 模拟比较等 AVR16的子程序 供大家参考-Write your own, such as analog comparator PWM Subroutine for the AVR16 U.S. reference

要用ImageCraft IDE for ICCAVR开发环境。 是ucos在atmel 的AVR单片机上的移植，具备 很高的参考价值！-use IDE for ICCAVR development environment. CENTER is in the ATMEL AVR on graft, with high reference value!

ARM S3C4510B系统中的异常中断技术.pdf-Interuppt_S3C4510B.rar-ARM S3C4510B system abnormal disruption technology. Pdf-Interuppt_S3C4510B.rar

LCD12864，多级菜单例子。Keil建立的工程。-LCD12864, many examples of class menu. Check matrix with simulation software and Protues