一个C51的多个源代码，不错哦，有很多芯片的协议

Atmel Uart C51程序（主方式）-Uart (the main mode)

PCB CAD CSIEDA CAD File PCB CAD CSIEDA CAD File-CSIEDA CAD File

usb固件程序LCD1602_GPIF_Firmwire-usb firmware LCD1602_GPIF_Firmwire

AT29C040在单片机中的应用不仅能使用户快速地实现所需功能，而且电擦除的方式为程序和数据的存储和更新提供了方便，随着闪速存储器器件朝着容量越来越大、工作电压越来越低、支持共同的接口标准的方向发展，闪速存储器硬件接口和软件设计将越来越容易。 -AT29C040 in MCU that the application enables users to quickly achieve the required functions, but also-- in the form of erasure and data storage and update provides a convenient, as Flash memory devices towards increasing capacity, low voltage increasingly support a common interface standard direction, Flash memory interface hardware and software design will become increasingly vulnerable.

MSP430单片机MSP430F1121与液晶驱动芯片PCF8576的连接程序，与大家共享采用静态驱动模式，F1121通过模拟IIC与PCF8576连接，程序稍为修改就可以移植到89C51。-MSP430 MSP430F1121 with LCD driver chips PCF8576 connectivity procedures, and share use of the static-driven model, the F1121 through simulation with the IIC PCF8576 connectivity, slightly amended procedures can be transplanted to 89C51.

单手PC键盘(at90s8515)-one-handed PC keyboard (at90s8515)

是一个5615芯片的驱动程序，5615是一个8位的D/A芯片，用它与51单片机组成的控制系统具有结构简单，性能稳定的特点。-5615 is a chip of the driver, is a 5615 eight of the D/A chips, and use it 51 MCU control system is simple in structure, performance and stability characteristics.

Microchip Technology Inc. 的HCS300 是一款跳码编码 器，它是专为安防遥控无钥门禁（RKE）系统而设计 的。 HCS300使用KEELOQ跳码技术，并具有安全性高、 封装尺寸小和成本低等特性。 HCS300 是单向遥控无钥 门禁系统和访问控制系统最完美的解决方案。-The HCS300 from Microchip Technology Inc. is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS300 utilizes the KEELOQ code hopping technology, incorporating high security, a small package outline and low cost. The HCS300 is a perfect solution for unidirectional remote keyless entry systems and access control systems.via any external connection. The EEPROM data is pro-grammable but read-protected. 2006 Microchip Technology Inc.

STC12C5410AD 系列和STC12C2052AD 系列单片机EEPROM/IAP 功能测试程序演示 本演示程序在STC-ISP Ver 3.0A.PCB 的下载编程工具上测试通过,EEPROM 的数据在P1口上显示 本程序根据宏晶科技提供的演示程序改编，是本人学习C51的学习笔记，供有需要的同仁参考 -STC12C5410AD series and STC12C2052AD Series MCU EEPROM/IAP function test procedure in the presentation of the demo program STC-ISP Ver 3.0A.PCB download programming tools on the test, EEPROM data in the P1 I show this program in accordance with the provision of macro crystalline technology demo program adaptation, learning my C51 study notes, for there is a need to refer to the Tongren

51通讯程序， 读串口并显示累加，调试基本通过-51 communication procedure, reads the string mouth and the demonstration accumulates, the debugging basically passes