ucos

中音音符dou，根据书上频率以及指令周期编写，时钟频率12m。比较easy。-tenor notes, books and instruction cycle frequency prepared, clocked 12m. Comparison easy.

一个数据库引擎,可以创建和读写DBF格式的数据库文件-A database engine, you can create and read and write DBF database file format

CY7C637xx CY7C637xxC Y7C637xxCY7C637-CY7C637xx CY7C637xxCY7C637xxCY7C637xx CY7C637

AT89C2051驱动步进电机的电路和源码(用keilC51)-AT89C2051 stepper motor drive circuits and source code (using keilC51)

本程序是一个RS232转网口的。是一个透明传输的模块，主控芯片是51的单片机。-This procedure is a RS232 port to switch to other networks. Is a transparent transmission module, the master microcontroller chip 51.

PC端，实现51单片机HEX代码写入系统的程序存储器。-PC client to achieve 51 Singlechip HEX code to write the system program memory.

采用IAR在线调试ADI公司基于ARM7内核的ADUC7026的ExternalMemory代码-IAR debug using online ADI Corporation ADUC7026 based on ARM7 core of ExternalMemory code

做一个电子钟：利用定时器0定时中断，控制电子钟走时；利用单片机上的六个数码管显示时、分、秒。-An electronic clock to do: Using Timer 0 interrupt timing, control of electronic bell away the use of the six single-chip digital display hours, minutes and seconds.

IAR for AVR是ATMEL公司推荐的AVR开发环境，其代码编译效率比GCC和ICC高25 到50 ，因此深受欢迎，但其相关的资料却很少，我上传一些能快速上手的资料（包括IAR的扩展关键字，GCC AVR的代码如何移植到IAR等等）-IAR for AVR is ATMEL" s AVR recommended development environment, its code is more efficient than GCC and ICC to compile a 25 to 50 , so very popular, but very little relevant information, I would upload the information that can quickly get started (including the expansion of IAR keyword, GCC AVR code for how to migrate to IAR, etc.)

由于该源程序并非为单片机而编写，因此资源占用率很大，要想在C51中使用，还必须对其进行改造-because the source is not prepared for a microcontroller, the occupancy rate has great resources, in order to use the C51, we must transform its