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Description: The purpose of this application note is to describe the main elements of
an RS-422 and RS-485 system. This application note attempts to cover
enough technical details so that the system designer will have considered all
the important aspects in his data system design. Since both RS-422 and RS-
485 are data transmission systems that use balanced differential signals, it is
appropriate to discuss both systems in the same application note. Throughout
this application note the generic terms of RS-422 and RS-485 will be used to
represent the EIA/TIA-422 and EIA/TIA-485 Standards.-The purpose of this application note is to d escribe the main elements of an RS-422 and RS-48 5 system. This application note attempts to cov er enough technical details so that the system d esigner will have considered all the important aspects in his data system design. Since both RS-422 and RS-485 data transmission systems are not hat use balanced differential signals. it is appropriate to discuss both systems in the same application note. Throughout this applic ation note terms of the generic RS-422 and RS-48 5 will be used to represent the EIA/TIA-422 and E. IA/TIA-485 Standards.
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Size: 381952 |
Author: yzodong |
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Description: 利用tty 传送pelco-d/p PTZ 的指令来测试旋转球-Use tty send pelco-d/p PTZ commands to test the spinning ball
Platform: |
Size: 6144 |
Author: rick |
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Description: 本程序介绍了一个利用RS232和/或RS485连接,采用CD4051多选一通道,用TI公司的10位串行A/D芯片TLC1549进行数据采集的程序.本程序还附带AT24C04的读写函数.希望对您有所帮助.-This procedure describes a use of RS232 and/or RS485 connection, using CD4051 choose a channel, using TI s 10-bit serial A/D chip TLC1549 data collection procedures. This procedure is also attached to the read and write AT24C04 function. Hope for your help.
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Size: 3072 |
Author: zy |
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Description: RS485，PELCO-D协议介绍，英文pdf，很全面-RS485，PELCO-D protocol， English pdf , very good
Platform: |
Size: 229376 |
Author: 小王子英雄 |
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Description: Modbus expalnation pdf boook rs485 20 words a a d f-Modbus expalnation pdf boook rs485 20 words a a d f
Platform: |
Size: 55296 |
Author: henrydcl |
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Description: DSP的485通讯程序,实现了DSP的485通讯要求，通过验证，可用-DSP-485 communications program to achieve the DSP-485 communications requirements, through the verification, can be used
Platform: |
Size: 60416 |
Author: 王徐颖 |
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Description: pelco 矩阵控制,通过rs485/rs232发送控制指令，控制摄像机，监视器的切换-pelco matrix control
Platform: |
Size: 439296 |
Author: mfc |
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Description: SCA126T 是瑞芬科技针对工业现场控制领域推出串口输出型双轴倾角传感器，内置高精
度16bit A/D 差分转换器，通过5 阶滤波滤波算法，最终输出双方向的倾角值。
接口可选RS485；RS232 或TTL 电平。由于内置了ADI 公司的高精度数字温感器，所以
输出角度在工作温度范围内都得到了再次修正，保证产品在低温与高置环境下的高重复性。
高的输出速度能达到20 次/秒。产品属于真正工业级产品，性能可靠稳定，扩展性好，
多种输出可供选择。适合应用于各种恶劣工业控制环境-SCA126T
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Size: 1287168 |
Author: 武钢 |
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Description: TMS320F28035实验板：
完整的原理图，完速的PCB图，都是protel99se文件。直接打样PCB板即可。
功能有：
1、一个蜂鸣器。
2、4个LED。
3、4个按键。
4、实时时钟。
5、液晶显示
6、EEPROM。
7、RS485。
8、SPI。
9、CAN。
10、RS232。
11、A/D检测。
12、TZ事件输入。
13、捕捉输入-TMS320F28035 experiment
Platform: |
Size: 418816 |
Author: 嘉宾 |
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