This document describes part number speciÞc changes to recommended operating conditions and revised electrical speciÞcations,as applicable, from those described in the generalMPC7400 Hardware SpeciÞcations.SpeciÞcations provided in this Part Number SpeciÞcation supersede those in theMPC7400 Hardware SpeciÞcationsdated 9/99(order #: MPC7400EC/D) for these part numbers only; speciÞcations not addressed herein are unchanged. This document isfrequently updated, refer to the website at http://www.mot.com/SPS/PowerPC/ for the latest version.Note that headings and table numbers in this data sheet are not consecutively numbered. They are intended to correspond to theheading or table affected in the general hardware speciÞcation.Part numbers addressed in this document are listed in Table A. For more detailed ordering information see Table B.
上传时间: 2013-11-19
上传用户:qiaoyue
红外遥控接收;=================================================;; zsMCU51实验板配套学习例程;; 中山单片机学习网 智佳科技;; 作者:逸风 QQ:105558851;; http://www.zsmcu.com; E-mail:info@zsmcu.com;=================================================ORG 0000HLJMP START;转入主程序ORG 0010HSTART:MAIN:JNB P2.2,IRLJMP MAIN;以下为进入P3.2脚外部中断子程序,也就是解码程序IR:MOV R6,#9SB:ACALL DELAY882 ;调用882微秒延时子程序JB P2.2,EXIT ;延时882微秒后判断P3.2脚是否出现高电平如果有就退出解码程序DJNZ R6, SB ;重复10次,目的是检测在8820微秒内如果出现高电平就退出解码程序;以上完成对遥控信号的9000微秒的初始低电平信号的识别。JNB P2.2, $ ;等待高电平避开9毫秒低电平引导脉冲ACALL DELAY2400JNB P2.2,IR_Rp ;ACALL DELAY2400 ;延时4.74毫秒避开4.5毫秒的结果码MOV R1,#1AH ;设定1AH为起始RAM区MOV R2,#4PP:MOV R3,#8JJJJ:JNB P2.2,$ ;等待地址码第一位的高电平信号LCALL DELAY882 ;高电平开始后用882微秒的时间尺去判断信号此时的高低电平状态MOV C,P2.2 ;将P3.2引脚此时的电平状态0或1存入C中 JNC UUU ;如果为0就跳转到UUULCALL DELAY1000UUU:MOV A,@R1 ;将R1中地址的给ARRC A ;将C中的值0或1移入A中的最低位MOV @R1,A ;将A中的数暂时存放在R1中DJNZ R3,JJJJ ;接收地址码的高8位INC R1 ;对R1中的值加1,换下一个RAMDJNZ R2,PP ;接收完16位地址码和8位数据码和8位数据,存放在1AH/1BH/1CH/1DH的RAM中MOV P1,1DH ;将按键的键值通过P1口的8个LED显示出来!CLR P2.3 ;蜂鸣器鸣响-嘀嘀嘀-的声音,表示解码成功LCALL DELAY2400LCALL DELAY2400LCALL DELAY2400SETB P2.3;蜂鸣器停止LJMP MAINIR_Rp:LJMP MAINEXIT:LJMP MAIN ;退出解码子程序;=============================882DELAY882: ;1.085x ((202x4)+5)=882MOV R7,#202DELAY882_A:NOPNOPDJNZ R7,DELAY882_ARET;=============================1000DELAY1000: ;1.085x ((229x4)+5)=999.285MOV R7,#229DELAY1000_A:NOPNOPDJNZ R7,DELAY1000_ARET;=============================2400
上传时间: 2013-11-01
上传用户:2525775
1 /**————————————————————2 〖说明〗I2C总线驱动程序(用两个普通IO模拟I2C总线)3 包括100Khz(T=10us)的标准模式(慢速模式)选择,4 和400Khz(T=2.5us)的快速模式选择,5 默认11.0592Mhz的晶振。6 〖文件〗PCF8563T.C ﹫2001/11/2 77 〖作者〗龙啸九天 c51@yeah.net http://www.c51bbs.co /8 〖修改〗修改建议请到论坛公布 http://www.c51bbs.co m9 〖版本〗V1.00A Build 080310 —————————————————————*/1112 #ifndef SDA13 #define SDA P0_014 #define SCL P0_115 #endif1617 extern uchar SystemError;1819 #define uchar unsigned char20 #define uint unsigned int21 #define Byte unsigned char22 #define Word unsigned int23 #define bool bit24 #define true 125 #define false 02627 #define SomeNOP(); _nop_();_nop_();_nop_();_nop_();2829 /**--------------------------------------------------------------------------------30 调用方式:void I2CStart(void) ﹫2001/07/0 431 函数说明:私有函数,I2C专用32 ---------------------------------------------------------------------------------*/33 void I2CStart(void)34 {35 EA=0;36 SDA=1; SCL=1; SomeNOP();//INI37 SDA=0; SomeNOP(); //START38 SCL=0;39 }4041 /**--------------------------------------------------------------------------------42 调用方式:void I2CStop(void) ﹫2001/07/0 443 函数说明:私有函数,I2C专用44 ---------------------------------------------------------------------------------*/45 void I2CStop(void)46 {47 SCL=0; SDA=0; SomeNOP(); //INI48 SCL=1; SomeNOP(); SDA=1; //STOP49 EA=1;50 }5152 /**--------------------------------------------------------------------------------53 调用方式:bit I2CAck(void) ﹫2001/07/0 454 函数说明:私有函数,I2C专用,等待从器件接收方的应答55 ---------------------------------------------------------------------------------*/56 bool WaitAck(void)57 {58 uchar errtime=255;//因故障接收方无ACK,超时值为255。59 SDA=1;SomeNOP();60 SCL=1;SomeNOP();61 while(SDA) {errtime--; if (!errtime) {I2CStop();SystemError=0x11;return false;}}62 SCL=0;63 return true;
上传时间: 2014-04-11
上传用户:xg262122
中文版详情浏览:http://www.elecfans.com/emb/fpga/20130715324029.html Xilinx UltraScale:The Next-Generation Architecture for Your Next-Generation Architecture The Xilinx® UltraScale™ architecture delivers unprecedented levels of integration and capability with ASIC-class system- level performance for the most demanding applications. The UltraScale architecture is the industr y's f irst application of leading-edge ASIC architectural enhancements in an All Programmable architecture that scales from 20 nm planar through 16 nm FinFET technologies and beyond, in addition to scaling from monolithic through 3D ICs. Through analytical co-optimization with the X ilinx V ivado® Design Suite, the UltraScale architecture provides massive routing capacity while intelligently resolving typical bottlenecks in ways never before possible. This design synergy achieves greater than 90% utilization with no performance degradation. Some of the UltraScale architecture breakthroughs include: • Strategic placement (virtually anywhere on the die) of ASIC-like system clocks, reducing clock skew by up to 50% • Latency-producing pipelining is virtually unnecessary in systems with massively parallel bus architecture, increasing system speed and capability • Potential timing-closure problems and interconnect bottlenecks are eliminated, even in systems requiring 90% or more resource utilization • 3D IC integration makes it possible to build larger devices one process generation ahead of the current industr y standard • Greatly increased system performance, including multi-gigabit serial transceivers, I/O, and memor y bandwidth is available within even smaller system power budgets • Greatly enhanced DSP and packet handling The Xilinx UltraScale architecture opens up whole new dimensions for designers of ultra-high-capacity solutions.
标签: UltraScale Xilinx 架构
上传时间: 2013-11-13
上传用户:瓦力瓦力hong
PPT是和视频教程配套的,视频教程地址http://i.youku.com/u/UMTExNzExOTgw/videos,和PPT配套使用的教程里面讲了systemverilog从文档到仿真,上板测试的整个流程,可能对有些朋友有帮助
上传时间: 2014-12-28
上传用户:dick_sh
基于ZedBoard和linux的应用程序HelloWorld的实现(完整工程)获取Zedboard可运行的linux Digilent官网给出Zedboard的可运行linux设计ZedBoard_OOB_Design包,可从http://www.digilentinc.com/Data/Documents/Other/ZedBoard_OOB_Design.zip获取,下载后解压,可以看到包的结构和内容
标签: HelloWorld ZedBoard linux 应用程序
上传时间: 2013-11-03
上传用户:lvzhr
为了使更多的计算机网络工作者了解和接受IPv6, 本文以两种不同的网络协议FTP协议和HTTP协议为例,以实验的方式研究了它们分别在IPv6和IPv4环境下对不同大小的文件进行网络传输的性能差异。通过对实验过程中采集的传输速率的计算和对比研究,发现IPv6在FTP协议和HTTP协议上文件传输速率比IPv4快,得出了整体而言IPv6的传输性能优于IPv4的结论。
上传时间: 2013-11-12
上传用户:liujinzhao
详解
上传时间: 2013-11-08
上传用户:lizhen9880
无线模块(RF wireless module)是利用无线技术进行无线传输的一种模块。它被广泛地应用于电脑无线网络,无线通讯,无线控制等领域。无线模块主要由发射器,接收器和控制器组成。 无线数据传输广泛地运用在车辆监控、遥控、遥测、小型无线网络、无线抄表、门禁系统、小区传呼、工业数据采集系统、无线标签、身份识别、非接触RF智能卡、小型无线数据终端、安全防火系统、无线遥控系统、生物信号采集、水文气象监控、机器人控制、无线232数据通信、无线485/422数据通信、数字音频、数字图像传输等领域中。 该方案由成都江腾科技有限公司(http://www.jiangteng-tech.com/)提供,是无线通信的最佳选择。内附无线模块参数设置软件,可对串口波特率、空中速率、RF频率、频道号、输出功率等参数轻松设置。
上传时间: 2014-12-29
上传用户:fudong911
首先进入录像机的:主菜单-》系统设置-》网络设置,把IP 地址,子网掩码,默认网关,首选DNS,TCP 端口,HTTP 端口,根据网络要求进行设置。 IP 地址:给录像机分配的一个独立的内网IP 地址,用户可根据情况来分配;
上传时间: 2013-10-13
上传用户:38553903210