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Description: 详细讲述了RS232，RS485，RS422电平间的不同，及各电平的特点等问题。
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Size: 92328 |
Author: 白波 |
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Description: 自己设计的pic单片机开发板源程序和说明书（内有原理图）支持pic16系列28脚和40脚器件。串口输出信息。4个LED数码管驱动；4个LED驱动；4个按键驱动；1个RS232接口；1个RS485接口；板载IIC存储器24C02驱动，；实时时钟；1Wire温度传感器；4通道功率输出驱动；2个继电器驱动；1个蜂鸣器； 2个通道AD转换（使用1个）； 红外收发（保留）； 扩展I/O接口； 按键复位电路； 板载ICSP接口。通过ICD2可在线编程，调试；复用IO均采用拨动开关控制。
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Size: 2499569 |
Author: chenmao |
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Description: msp430与主机的RS232和RS485通信例程
在不同单片机上稍做修改就可以使用
欢迎下载
也希望大家可以拿出自己的东西共享
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Size: 160226 |
Author: 李哲 |
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Description: 用MEGA128做的串口服务器,包括原理图,源代码,TCPIP开发资料,接口包括RS232,RS485,RJ45
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Size: 17830778 |
Author: 陈振宇 |
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Description: 超声波测距基于8051的源程序设计-8051 Ultrasonic Ranging based on the source code design
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Size: 7168 |
Author: 黄希 |
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Description: 支持rs232rs485rs422的源程序-source of support rs232rs485rs422
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Size: 13312 |
Author: david |
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Description: 目前较为常用的串口有9针串口（DB9）和25针串口（DB25），通信距离较近时(<12m)，可以用电缆线直接连接标准RS232端口(RS422,RS485较远)，若距离较远，需附加调制解调器（MODEM）。最为简单且常用的是三线制接法，即地、接收数据和发送数据三脚相连，本文只涉及到最为基本的接法，且直接用RS232相连，以回答前段网友的咨询。-now more commonly used serial 9-pin serial port (projectors) and 25-pin serial port (DB25), Communication at close distance (
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Size: 7168 |
Author: steven |
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Description: 与不同的外部设备连接需要不同的通讯电缆。为避免发生通讯的问题，请在连接RS485/485 的设备时注意通讯电缆长
度不要超过150 米，在连接RS232 设备时注意通讯电缆的长度不要超过15 米-With different external devices require different communication cables. To avoid communication problems, please connect RS485/485 communications equipment for the attention of cable length should not exceed 150 meters, connecting RS232 devices to observe the length of communication cable not over 15 meters
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Size: 400384 |
Author: hushoufang |
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Description: 详细讲述了RS232，RS485，RS422电平间的不同，及各电平的特点等问题。-A detailed account of the RS232, RS485, RS422-level between the different levels and characteristics and so on.
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Size: 92160 |
Author: 白波 |
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Description: 开发RS232和RS485通讯原理详细介绍-RS232 and RS485 communication to develop the principle of detailed
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Size: 8192 |
Author: peng |
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Description: 串口通信编程大全 电子书66页
1. RS-232-C详解
2. 串口通信基本接线方法
3. 串口通讯的概念及接口电路
4. 有关RS232和RS485接口的问答
5. 同步通信方式
6. 通信协
7. 实战串行通
8. 全双工和半双工方式
9. 浅析PC机串口通讯流控制
10. 奇偶校验
-EBook Encyclopedia of Serial Communication Programming 66 1. RS-232-C Detailed 2. Serial Communication basic wiring methods 3. The concept of serial communication and interface circuit 4. On the RS232 and RS485 interface of the Q
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Size: 907264 |
Author: 自治州 |
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Description: 1. RS-232-C详解
2. 串口通信基本接线方法
3. 串口通讯的概念及接口电路
4. 有关RS232和RS485接口的问答
5. 同步通信方式
6. 通信协
7. 实战串行通
8. 全双工和半双工方式
9. 浅析PC机串口通讯流控制
10. 奇偶校验
-1. RS-232-C Detailed 2. Serial Communication basic wiring methods 3. The concept of serial communication and interface circuit 4. On the RS232 and RS485 interface of the Q
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Size: 907264 |
Author: 自治州 |
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Description: 内部包含如何用rs232来和rs485通信的示范代码
-Includes how to use the internal RS232 and RS485 communication to the model code
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Size: 1122304 |
Author: 秦文进 |
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Description: RS232.RS422和RS485的标准与应用技术，很不错的个人感觉-RS232.RS422 and RS485 standard and application of technology, very good personal feeling
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Size: 218112 |
Author: gg |
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Description: 描写串行口RS232和RS485的硬件资料-Description of RS232 and RS485 serial port hardware information
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Size: 593920 |
Author: zhangxiansheng |
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Description: This example program is the source code for the FT232BM Test Application from our Utilities page.
It can be used to test the handshaking lines on FT232BM based RS232/RS485/RS422 designs. This program can also be used for programming the external EEPROM over USB in a manufacturing environment. The test features require the test cable shown on ST_232_245.pdf to be connected.
Our D2XX direct drivers should be installed for this application. The code can be modified to fit your requirements.
To download the application source code , click here.
To download the test cable specification, click here.-This example program is the source code for the FT232BM Test Application from our Utilities page.
It can be used to test the handshaking lines on FT232BM based RS232/RS485/RS422 designs. This program can also be used for programming the external EEPROM over USB in a manufacturing environment. The test features require the test cable shown on ST_232_245.pdf to be connected.
Our D2XX direct drivers should be installed for this application. The code can be modified to fit your requirements.
To download the application source code , click here.
To download the test cable specification, click here.
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Size: 53248 |
Author: madbana |
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Description: 这个通用的Bootloader可以支持大部分具有自编程功能、带有Boot区和UART串口的AVR单片机（主要是Mega系列）。如果是多串口的单片机，可以任意选择使用其中的一个串口。程序支持RS232/RS485/RS422方式，如果程序稍加修改，也应当可以很容易的支持USI、SPI、I2C等接口。-WinAVR For BootLoader
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Size: 26624 |
Author: knight |
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Description: OD2101是可以实现I2C与RS232或RS485透传-OD2101 I2C RS232 RS485
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Size: 36864 |
Author: 陈福远 |
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Description: 这个包中提供了一些有实际应用价值的子程序供参考选用
SUB1----X25045/43 看门狗/存储器与 89C2051接口子程序
源程序/原理图(21K)X25045.EXE
SUB2----AT24C02/04/08/16 串行存储器与 89C2051接口子程序
源程序/原理图(22K) AT24C02.EXE
SUB3----红外遥控器(熊猫M50462/C54L2)与 89C2051接口子程序
源程序/原理图(21K) M50462.EXE
SUB4----DS1302/HT1302 实时时钟与 89C2051接口子程序
源程序/原理图(20K) DS1302.EXE
SUB6----AT89C2051与上位机RS232通讯接口子程序
源程序/原理图(25K) RS232.EXE
SUB7----VB5.0 与AT89C2051通讯接口子程序
源程序/原理图(22K) VB5.EXE
SUB8----单片机间RS485多机通讯子程序
源程序/原理图(24K) RS485.EXE
-This package provides the practical application of some value for reference subroutine SUB1----X25045/43 optional watchdog/memory interface and subroutine 89C2051 source/schematic (21K) X25045.EXE SUB2---- AT24C02/04/08/16 serial memory interface and subroutine 89C2051 source/schematic (22K) AT24C02.EXE SUB3---- infrared remote control (Panda M50462/C54L2) with 89C2051 interface subroutine source/principle Map (21K) M50462.EXE SUB4----DS1302/HT1302 real-time clock and interface subroutine 89C2051 source/schematic (20K) DS1302.EXE SUB6---- AT89C2051 and PC RS232 communication interface subroutine source/schematic (25K) RS232.EXE SUB7---- VB5.0 and AT89C2051 communication interface subroutine source/schematic (22K) VB5.EXE SUB8---- single-chip multi-machine communication between the RS485 source subroutine/schematic diagram (24K) RS485.EXE
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Size: 159744 |
Author: jiazhenbang |
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Description: 通过MC1488 MC1489 555-100A搭建的RS232与RS485电气转换电路-Through MC1488 MC1489 555-100A built electrical RS232 and RS485 Converter
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Size: 24576 |
Author: tangping |
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