C0851F020单品机DA转换源码，带液晶显示的功能

万年历数码管实现 用单片机 译码器 实现的-Calendar realize the digital control using single-chip decoder realize the

详细介绍了以太网收发器RTL8019芯片，中文文档，免除了读英文文档的痛苦和低效-Described in detail RTL8019 Ethernet transceiver chip, Chinese documents, eliminating the pain of reading the document in English and inefficient

PC机和智能型仪表通过RS485进行同步通信-PC and intelligent instrument for synchronous communication through the RS485

keilc51中stc芯片补丁，用于stc系列芯片的开发-STC chip in keilc51 patch for the development of STC series chip

16c552驱动程序，两个穿口+1个并口的驱动程序-16c552 driver, two I wear a parallel port drivers

基于51单片机的I2C通信程序，可以顺利实现I2C通信-Based on 51 MCU I2C communication program can be successfully I2C communication

使用protel99软件编辑的原理电路图，希望对各位有助于电路图的学习和开发-The use of the principle of circuit protel99 software editor, in the hope you will help the study and development of circuit

用1602LCD液晶屏做的电子表。-1602LCD LCD screen to do with the electronic form.

凌阳最出的超声波测距模组，通过555产生40KHz的超声波，有SPE061A单片机控制超声波的发射和接收，最初的版本在程序方面比第二版本来得简单，主要是通过了硬件电路减少了程序，附电路图、PCB图等-Sunplus most of the ultrasonic ranging modules, 40KHz generated through 555 of the ultrasound, ultrasound has SPE061A single-chip microcomputer to control the transmitting and receiving an initial version of the procedure than the second version is more simple, mainly through the reduction of hardware circuit procedures, with schematics, PCB map

This directory contains 3 file system modules: - file system ISO9660 iso9660.c iso9660.h - file system FAT12/16 fat.c fat.h - file system FAT32 fat32.c fat32.h file.c and file.h contains all high levels functions/macro/definition for your application. fs_variable.c contains all definitions of variables that can be shared with the all file systems. config.h must contain the definition of the file system used by your application.- This directory contains 3 file system modules:- file system ISO9660 iso9660.c iso9660.h- file system FAT12/16 fat.c fat.h- file system FAT32 fat32.c fat32.h file.c and file.h contains all high levels functions/macro/definition for your application. fs_variable.c contains all definitions of variables that can be shared with the all file systems. config.h must contain the definition of the file system used by your application.