AVR单片机软件模拟USB的程序。

R63400 C51 test program

DS1302读写一体化C51源程序 以下引脚定义部分根据实际接线情况作适当调整 sbit TIMECLK = P1^0 sbit TIMERST = P1^1 //禁止DS1302 sbit TIMEIO = P1^2 //释放数据总线-C51 source integration DS1302 to read and write the following definition of part-pin wiring in accordance with the actual situations properly adjust sbit TIMECLK = P1 ^ 0 sbit TIMERST = P1 ^ 1// prohibited DS1302sbit TIMEIO = P1 ^ 2// release data bus

单片机串行通讯从机程序-serial communication from the plane procedures

用硬件协议栈芯片w3100a实现udp协议，用51单片机实现 kei51环境-hardware protocol stack chips w3100a achieve udp agreement with 51 MCU environment kei51

PCI_Express PCB Guidelines

由C 语言实现的液晶 利用的是KEIL环境已经得到验证-By the C language using the LCD is KEIL environment has been tested

数码管显示，并且带有按键功能，按键实现数码管时钟的计时。-take count of clock

本程序是一师兄给我的，用于液晶屏的滚动显示，给大家参考参考-this is a process, told it to me, for the rolling screen, to your information.

用51单片机的PWM实现DA -PWM using 51 single chip realize DA

AD7708 - ANALOG DEVICES 16bit ADC CONVERSION ROUTINES-AD7708- ANALOG DEVICES 16bit ADC CONVERSION ROUTINES