数码管的显示操作，同时也有按键操作程序，通过单片机控制可以直接进行显示

对I2C总线的EEPROM芯片AT24C08进行读和写的操作，并判断读写是否一致。-EEPROM on the I2C bus to read and write AT24C08 chip operation, and determine whether to read and write.

lm2576S-5 电压变频器，经典电路接发-lm2576S-5 voltage inverter circuit receiving classic

KEYCONTROLLED KEYCONTROLLED-KEYCONTROLLED KEYCONTROLLED KEYCONTROLLED

单片机串口输入输出函数-microcontroller serial input-output function

本程序主要是51单片机的应用和dac1230的接口应用-This procedure is the application of single-chip microcomputer 51 and the interface application dac1230

80C51编写的看门狗程序，本程序是为了数字电压表的看们狗设计-80C51 watchdog prepared by the procedure, the procedure is to digital voltage meter to see who the dog design

rc5 decoder for avr microcontrollers

这是Beagle_Allegro_B 板子的PCB图，供大家画图时参考使用-This is the PCB board Beagle_Allegro_B map, drawing reference to use for everyone

直流电机的闭环控制 实验采用89C51，编译环境 Keil C 51-Closed-loop DC motor control experiment using 89C51, compiler environment Keil C 51

spi 翻译资料 7.2 SPI总线 SD卡信道由指令和数据位（起始位和结束位）组成，SPI信道由字节定向。 每一个指令或数据块由8位的字节和CS标志构成。类似SD卡协议, SPI通讯由 指令、响应和数据组成。全部的主机与SD卡之间的通信由主机控制。主机执行 每一跟CS标志为低的总线-spi Translation 7.2 SPI bus data channel from the SD card command and data bit (start bit and end bit) component, SPI channel directed by byte. Every command or data block from 8-bit bytes and CS constitute signs. SD card similar to the agreement, SPI communications from command, response and data components. All of the host and the communications between the SD card by the host control. Each host implementation with CS low marks for bus