arm的spi功能，通过595点亮数码管

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.

lcd显示程序,LCD菜单程序,可供学习LCD者使用 -lcd display program, LCD menu program for learning the use of LCD

read and write eeprom,at24c512.debug finished pass.

在Iccavr软件平台上，提供一个具有通用性的 mega Bootloader，不同型号的AVR单片机只需要修改一下几个简单的配置参数就可以直接使用了，不需要再修改主程序。-In Iccavr software platform to provide a universal mega Bootloader, different models of AVR Singlechip you only need to modify a few simple configuration parameters can be used directly, no need to modify the main program.

很好的AT89C51的中文说明书 费了很大劲才找到的-AT89C51 good Chinese manual costs a lot劲才found

用PIC16F877控制电动自行车的源程序，配有大量的说明！-PIC16F877 controlled by the source electric bicycle,配有大量note!

i2c总线eeprom读写程序 可以读些从21c01--24c512的i2c总线eeprom芯片-i2c bus EEPROM read and write procedures can read more from 21c01-- the i2c bus 24c512 chip EEPROM

ZLG500B读卡模块数据传输协议--底层函数和高级函数-ZLG500B reader module data transfer protocol-- the bottom and Senior Function Function

Ra8803测试程序，320*240液晶，包括8080和6800时序-Ra8803 test procedure, 320* 240 LCD, including 8080 and 6800 time-series

单片机定点运算子程序库，源程序经KEIL测试ok.-SCM- point computation subroutine library, source testing by KEIL ok.