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单片机编程 P82B96在远距离I2C通信中的应用
该器件可桥接SMBus（350μA）、3.3V逻辑器件，15V电平及低阻抗导线可以延长通信距离，增加抗干扰能力。该器件对I2C总线协议和时钟速率没有特殊要求。P82B96能增加I2C总线节点上挂接的最小负载数、新总线负载数和远程I2C总线器件数，且不会对本地节点造成影响。挂接器件数目和物理上的限制也会大大减小。通过平衡传输线（双 ...
单片机编程 P89V51系列单片机ISP下载简明操作步骤
电脑 DB9 连接器的2 脚是电脑的接收Rx，3 脚是电脑的发送Tx，5 脚是GND。通常串行口电缆分“交叉”与“不交叉”两种，要注意区分，不可接反。推荐用带有真正行口的电脑操作，如果是USB 虚拟的串口，则可能会出现下载失败的情况。 ...
单片机编程 DUAL RS-232 DRIVER RECEIVER WI
The TRS232E is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/RS-232-Fvoltage levels from a single 5-V supply. Each receiver converts TIA/RS-232-F inputs to 5-V TTL/CMOS levels.This receiver has a typical threshold of 1.3 V, a typical hysteresis of 0.5 V, and can a ...
单片机编程 Using the Stellaris Microcontr
Luminary Micro Stellaris™ microcontrollers that are equipped with an analog-to-digital converter(ADC), use an innovative sequence-based sampling architecture designed to be extremely flexible,yet easy to use. This application note describes the sampling architecture of the ADC. Sinceprogrammer ...
单片机编程 Using the P82B96 for bus inter
The P82B96 offers many different ways in which it can be used as abus interface. In its simplest application it can be used as aninterface between bus systems operating from different supplyvoltages. Opto isolation between two bus systems is possible, andalso the availability of the Tx and Rx signal ...
单片机编程 MSP430系列超低功耗16位单片机原理与应用
MSP430系列超低功耗16位单片机原理与应用TI公司的MSP430系列微控制器是一个近期推出的单片机品种。它在超低功耗和功能集成上都有一定的特色，尤其适合应用在自动信号采集系统、液晶显示智能化仪器、电池供电便携式装置、超长时间连续工作设备等领域。《MSP430系列超低功耗16位单片机原理与应用》对这一系列产品的原理、结构 ...
单片机编程 keil使用笔记
keil 使用笔记:在Memory窗口上输入address_type:address才能看到正确地址的变量debug～perfermance analyzer加入要察看的模块名称，然后view～perfermance analyzer window 可以察看各个模块运行时间①Display address_type:address B:Bit address C:Code Memory Bx:Code Bank D D：80H 命令可以查看特殊寄存器 data D I：0 ...
单片机编程 Using the 87LPC76X microcontro
I2C interface, is a very powerful tool for system designers. Theintegrated protocols allow systems to be completely software defined.Software development time of different products can be reduced byassembling a library of reusable software modules. In addition, themultimaster capability allows rapid ...
C/C++语言编程 C语言程序设计入门(中文版)及软件下载
解压包包含了C语言入门经典教程和Visuak c++软件
【基本简介】
Visual C++是一个功能强大的可视化软件开发工具。自1993年Microsoft公司推出Visual C++1.0后，随着其新版本的不断问世，Visual C++已成为专业程序员进行软件开发的首选工具。
虽然微软公司推出了Visual C++.NET(Visual C++7.0)，但它的应用的很大的局限 ...
C/C++语言编程 lcd计数显示程序
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
---- Uncomment the following library declaration if instantiating
---- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;
entity counter is
 &n ...