概述 MC20P11XX是采用CMOS技术的远程控制传输器,适用于TV,VCR,FANS,空调，音频设备，玩具，游戏等等的远程控制。 MC20P11XX为OTP版本。
上传时间： 2013-10-13
上传用户：894898248
Bootloader是微处理器上电时运行的第一段代码，它可以通过通信接口实现对微处理器内部应用程序的更新升级，为网络化嵌入式产品的应用程序升级带来极大的便利。由于目前没有统一嵌入式系统的Bootloader。基于NEC 78K0系列单片机自编程原理，设计出一个适用于78K0/Fx2系列单片机的Bootloader，并能够通过单片机串口在线升级应用程序。 Abstract: Bootloader is the first piece of code executed after microprocessor startup. It makes the embedded product’s firmware update conveniently through communication interface. However， no unified bootloader is available for all kinds of microprocessor products. Based on the principle of self-programming NEC 78K0s’ series， a useful Bootloader which is suitable for 78K0/Fx2s’ series MCU is designed，the design can update the application through serial ports.
标签： Bootloader MCU 自编程
上传时间： 2013-10-26
上传用户：fang2010
摘要：提供两个实用的、能够在单片机上通过软件来实现的CRC快速算法，其中一个适用于51系列等单片机，另一个适用于PIC单片机，这两种算法十分简单快捷。
上传时间： 2014-01-05
上传用户：brain kung
简介：1、PWM调制，H桥双极性驱动，最大相输出电流：1.5A。2、2细分、4细分、8细分订制。3、供电电压：DC12V。4、脱机电平。5、光耦隔离。6、自动半电流功能。本驱动器不设置可调整项，电流及细分数分别在1.5A及8细分以下由用户任意订制，以适配不同工况及不同型号的2相步进电机。
上传时间： 2013-10-11
上传用户：tuilp1a
介绍了基于nRF24Z1的CD音质无线耳机的设计方案，详细阐述了系统的硬件设计，并给出了软件设计的主要流程，本耳机设计方便，结构简单，可适用于CD音质音频数据的无线传输。
上传时间： 2013-11-05
上传用户：aa7821634
HT47R20是8位高性能精简指令集单片机单指令周期和两级流水线结构使其适合高速应用的场合特别适用于带LCD的低功耗产品例如电子计算机时钟计数器游戏产品电子秤玩具温度计湿度计体温计电容测量仪以及其它掌上型LCD产品尤其是电池供电的系统。
上传时间： 2013-11-04
上传用户：LP06
一、版权信息PCI-51XX系列智能CAN接口卡及相关软件均属广州市周立功单片机发展有限公司所有，其产权受国家法律绝对保护，未经本公司授权，其他公司、单位、代理商及个人不得非法使用和拷贝，否则将受到国家法律的严厉制裁。您若需要我公司产品及相关信息，请及时与我们联系，我们将热情接待。广州周立功单片机发展有限公司保留在任何時候修订本用户手册且不需通知的权利。 二、功能特点PCI-51XX智能CAN接口卡是具有PCI接口的高性能CAN总线通讯适配卡，它使PC机方便地连接到CAN总线上，实现CAN2.0B协议的数据通讯。PCI-51XX智能CAN接口卡采用标准PCI接口，实现与主机PC的高速数据交换。接口卡上自带光电隔离模块，使PC机避免由于地环流的损坏，增强系统在恶劣环境中使用的可靠性。PCI-51XX智能CAN接口卡配有可在Win98/Me、Win2000/XP下工作的驱动程序，使用通用CAN接口库，使开发简单化，并包含在VC++、C++Builder、Delphi、VB下开发的详细应用例程。
上传时间： 2013-10-08
上传用户：wangyi39
一种基于单片机技术的倒车后视系统的硬软件设计。系统以单片机为控制中心，结合图像采集和超声波测距技术，以车载电视为显示平台显示障碍物的准确信息。
上传时间： 2013-11-13
上传用户：mqien
CAN，全称为“Controller Area Network”，即控制器局域网，是国际上应用最广泛的现场总线之一。最初，CAN被设计作为汽车环境中的微控制器通讯，在车载各电子控制装置ECU之间交换信息，形成汽车电子控制网络。比如：发动机管理系统、变速箱控制器、仪表装备、电子主干系统中，均嵌入CAN控制装置。一个由CAN 总线构成的单一网络中，理论上可以挂接无数个节点。实际应用中，节点数目受网络硬件的电气特性所限制。例如，当使用Philips P82C250作为CAN收发器时，同一网络中允许挂接110个节点。CAN 可提供高达1Mbit/s的数据传输速率，这使实时控制变得非常容易。另外，硬件的错误检定特性也增强了CAN的抗电磁干扰能力。
上传时间： 2013-11-17
上传用户：thuyenvinh
I/O 型单片机使用手册 目录 间接寻址寄存器 – IAR, IAR0, IAR1 .............................................35间接寻址指针 – MP, MP0, MP1 ......................................................35存储区指针 – BP .........................................................................36累加器 – ACC...................................................................................37程序计数器低字节寄存器 – PCL....................................................37表格寄存器 – TBLP,TBHP,TBLH....................................................37看门狗定时寄存器 – WDTS............................................................38状态寄存器 – STATUS.....................................................................38中断控制寄存器 – INTC,INTC0,INTC1 .........................................39定时/计数寄存器...............................................................................39输入/输出端口和控制寄存器...........................................................40UART 寄存器 .USR,UCR1,UCR2,TXR/RXR,BRG.......................40输入/输出端口..........................................................................................41上拉电阻............................................................................................41PA 口的唤醒......................................................................................41输入/输出端口控制寄存器...............................................................41引脚共享功能....................................................................................42编程注意事项....................................................................................45定时/计数器..............................................................................................46配置定时/计数器输入时钟源...........................................................47定时/计数寄存器 – TMR, TMR0,TMR0L/TMR0H,TMR1L/TMR1H,TMR2.....................................................................49定时/计数控制寄存器 – TMRC,TMR0C,TMR1C,TMR2C............50定时器模式........................................................................................53事件计数器模式................................................................................53脉冲宽度测量模式............................................................................54可编程分频器(PFD)和蜂鸣器的应用..............................................55预分频器(Prescaler)...........................................................................56输入/输出接口...................................................................................56编程注意事项....................................................................................57定时/计数器应用范例.......................................................................57中断............................................................................................................59中断寄存器........................................................................................59中断优先权........................................................................................62外部中断............................................................................................63定时/计数器中断...............................................................................64UART 中断........................................................................................64编程注意事项....................................................................................65复位和初始化............................................................................................66复位....................................................................................................66目录iii异步串行口——UART............................................................................74UART 特性..........................................................................................74UART 外部引脚..................................................................................74数据发送.............................................................................................75UART 状态控制寄存器......................................................................75波特率发生器.....................................................................................79UART 设置与控制..............................................................................81UART 发送器......................................................................................83UART 接收器......................................................................................84接收错误处理.....................................................................................85接收中断图解.....................................................................................86地址检测模式.....................................................................................86暂停模式下的UART 功能.................................................................87UART 应用范例.................................................................................87振荡器........................................................................................................89系统时钟配置....................................................................................89系统晶体/陶瓷振荡器.......................................................................89系统电阻电容振荡器........................................................................90内部系统电阻电容振荡器................................................................90RTC 振荡器........................................................................................91看门狗定时振荡器............................................................................91暂停和唤醒................................................................................................92暂停.....................................................................................................92进入暂停.............................................................................................92静态电流.............................................................................................92唤醒....................................................................................................92看门狗定时器............................................................................................94掩膜选项....................................................................................................96应用电路....................................................................................................97第二部份 程序语言.....................................................................99第二章 指令集介绍.................................................................................101指令集......................................................................................................101指令周期..........................................................................................101数据的传送......................................................................................101算术运算..........................................................................................102逻辑和移位运算..............................................................................102分支和控制的转换..........................................................................102位运算..............................................................................................102查表运算..........................................................................................103其它运算..........................................................................................103指令设定一览表......................................................................................104惯例..................................................................................................104I/O 型单片机使用手册iv第三章 指令定义.....................................................................................107第四章 汇编语言和编译器.....................................................................121常用符号..................................................................................................121语句语法..................................................................................................122名称..................................................................................................122操作项..............................................................................................122操作数项..........................................................................................122注解..................................................................................................122编译伪指令..............................................................................................123条件编译伪指令..............................................................................123文件控制伪指令..............................................................................124程序伪指令......................................................................................126数据定义伪指令..............................................................................130宏指令..............................................................................................132汇编语言指令..........................................................................................136名称..................................................................................................136助记符..............................................................................................136操作数、运算子和表达式..............................................................136其它..........................................................................................................139前置引用..........................................................................................139局部标号..........................................................................................139汇编语言保留字..............................................................................140编译器选项..............................................................................................141编译列表文件格式..................................................................................141源程序列表......................................................................................141编译总结..........................................................................................142其它..................................................................................................142第三部份 开发工具................................................................... 145第五章 单片机开发工具.........................................................................147HT-IDE 集成开发环境............................................................................147盛群单片机仿真器(HT-ICE) ..................................................................149HT-ICE 接口卡.................................................................................149OTP 烧写器.....................................................................................149OTP 适配卡.....................................................................................149系统配置..................................................................................................150HT-ICE 接口卡设置........................................................................151安装..........................................................................................................153系统要求..........................................................................................153硬件安装..........................................................................................153软件安装..........................................................................................154目录v第六章 快速开始.....................................................................................159步骤一：建立一个新项目..............................................................159步骤二：将源程序文件加到项目中..............................................159步骤三：编译项目..........................................................................159步骤四：烧写OTP 单片机.............................................................160步骤五：传送程序与掩膜选项单至Holtek ..................................160附录............................................................................................... 161附录A 特性曲线图...................................................................................163附录B 封装信息.......................................................................................173
上传时间： 2013-10-18
上传用户：blacklee
