·无线经典教材《无线通信》by Goldsmith 英文版
上传时间： 2013-06-26
上传用户：zklh8989
PCI Arbitor by VHDL
上传时间： 2013-08-18
上传用户：h886166
* DESCRIPTION: DDS design BY PLD DEVICES.\r\n *\r\n * AUTHOR: Sun Yu\r\n *\r\n * HISTORY: 12/06/2002 \r\n *
标签： DESCRIPTION DEVICES design DDS
上传时间： 2013-09-09
上传用户：jokey075
Altium Designer Guide by Univ of Nevada
标签： Designer Altium Nevada Guide
上传时间： 2013-09-11
上传用户：qingzhuhu
Accessing IDE Hard disk by ATmega32 microcontroller (Proteus simulation include)
标签： microcontroller simulation Accessing Proteus
上传时间： 2013-09-21
上传用户：18888888888
在需要实时大量输入汉字的显示控制处理应用中，利用传统单片机实现显示控制的设计方法是较难实现的。带汉字字库的液晶模块的使用使得小容量ROM单片机的大量汉字信息输入与显示成为可能。提出了针对汉字字库编码的二级索引拼音输入检索方法,介绍了以ST7920作为控制器的带汉字字库的液晶显示模块的接口方法及汉字显示和控制原理，给出了通用计算机键盘在单片机中的串行接口，采用该技术可大大增强单片机的汉字输入功能。为小容量ROM单片机的大批量汉字信息处理提供了一种汉字输入解决方案。 Abstract: It is difficult to realize Chinese characters input method based on the embedded system by using the traditional design method of display control. It is possible to input and display Chinese characters based on the embedded system with the ROM of small content by using the LCD module with Chinese characters.Chinese characters input method of the quadric index recall in allusion to Chinese characters code is brought forward.The interface and the principle of Chinese characters display control based on the LCD module controlled with the ST7920 is introduced too.The serial interface of the computer keyboard in common use and the embedded system is given at the same time. It can enhance the embedded system function of Chinese characters input by using this technology, and provide a kind of Chinese characters input scheme for the embedded system with small capacity ROM.
上传时间： 2013-11-18
上传用户：jhksyghr
AT89C2051驱动步进电机的电路和源码:AT89C2051驱动步进电机的电路和源码 程序:stepper.c stepper.hex/* * STEPPER.C * sweeping stepper's rotor cw and cww 400 steps * Copyright (c) 1999 by W.Sirichote */＃i nclude c:\mc5151io.h /* include i/o header file */ ＃i nclude c:\mc5151reg.hregister unsigned char j,flag1,temp; register unsigned int cw_n,ccw_n;unsigned char step[8]={0x80,0xc0,0x40,0x60,0x20,0x30,0x10,0x90} #define n 400/* flag1 mask byte 0x01 run cw() 0x02 run ccw() */main(){ flag1=0; serinit(9600); disable(); /* no need timer interrupt */ cw_n = n; /* initial step number for cw */ flag1 |=0x01; /* initial enable cw() */while(1){ { tick_wait(); /* wait for 10ms elapsed */energize(); /* round-robin execution the following tasks every 10ms */ cw(); ccw(); } }}cw(){ if((flag1&0x01)!=0) { cw_n--; /* decrement cw step number */ if (cw_n !=0) j++; /* if not zero increment index j */ else {flag1&=~0x01; /* disable cw() execution */ ccw_n = n; /* reload step number to ccw counter */ flag1 |=0x02; /* enable cww() execution */ } }
上传时间： 2013-11-20
上传用户：boyaboy
SF-CY3 FPGA套件开发指南Ver6.00 （by特权同学）
上传时间： 2013-10-22
上传用户：songnanhua
Linux移植之Step By Step_V4.1
上传时间： 2013-10-15
上传用户：13033095779
SF-CY3 FPGA套件开发指南Ver6.00 （by特权同学）
上传时间： 2014-01-25
上传用户：ewtrwrtwe
