支持SD卡的MP3电路图,powerpcb4.0格式.使用AVR单片机

51单片机驱动128X64液晶的程序。里面包括显示16X16点阵字符、显示8X16点阵字符、显示光标、clr光标等子程序。用C51编写-51 microcontroller drives the built LCD procedures. They show audio Character, character dot-matrix display 8X16 show that the cursor, such as the cursor clr subroutine. Prepared with C51

单片机串口程序，可以通过keil编译，实现一台主机和多台从机的通信，从机挂接同一条总线,主机对通信有决定权 -MCU procedures, Keil compiler can achieve a host and multiple communications from the plane, from the plane with an articulated bus, the mainframe has the right to decide Communications

计算CRC16/CRC8/CRC32的程序，可获得CRC-CCITT/CRC-16/CRC-8/CRC-32的计算结果。 提供Delphi源代码和MCS51单片机的汇编源代码，分别采用两至三种不同算法实现。有比较详细的调用和使用说明。 更新历史: 2003/05/04 新增CRC-8算法的实现。 2004/02/02 修改CRC-8算法，新增CRC-32算法，增加比较详细的调用和使用说明。-CRC16/CRC8/CRC32 calculation procedures available CRC-CCITT/CRC-16/CRC-8/CRC-32 the calculated results. Delphi provide source code and compile the MCS51 source code, adopted two to three different algorithm. A more detailed calls and use. Update History : 2003/05/02 new CRC-8 algorithm implementation. 2004/02/02 changes CRC-8 algorithm, the new CRC-32 algorithm, adding more detailed calls and use.

单片机源程序,用于需要4*4矩阵键盘场合,汇汇编程序KEIL开发环境.-Singlechip source for 4* 4 matrix keyboard occasions, the assembler KEIL development environment.

好东西,youhaodoxidajiagongxiang-good thing

upsd3300SPI程序代码,想用upsd3300做SPI接口应用的请下载-upsd3300SPI code, upsd3300 to do with SPI Interface Application Download

俄罗斯方块，采用51单片机，c语言编制。能在大屏幕液晶下很好的玩转游戏。-Russian box, using 51 single-chip microcomputer, c language. Large-screen LCD in the next game Topsy good.

c8051f330单片机 用adc功能实现电位器调速-C8051F330 realize single-chip functions with adc potentiometer speed

led跑马灯显示，实现一秒钟闪一次。基础性的代码，比较简单。-led display

c51程序库，汇编写的，希望对大家有点用。-C51 libraries, compiling written, in the hope that a bit with everyone.