UART device with Baud rate detection and set function and detection and set method thereof

A technology of baud rate and function, applied in the field of UART devices, can solve problems such as not knowing the working baud rate of communication equipment and being unable to correctly set system working parameters

Inactive Publication Date: 2010-01-13
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In industrial control, telecommunications and other control systems and some other equipment, serial communication interfaces such as RS232 / 422 / 485 are often used as console or monitoring interfaces. During use, sometimes the working baud rate of the communication equipment is unknown. And cannot correctly set the working parameters of the system
Whenever this happens, the usual method is to check the manual or ask the designer or try the commonly used baud rates one by one. This method brings a lot of inconvenience to the use of communication equipment.

Method used

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  • UART device with Baud rate detection and set function and detection and set method thereof
  • UART device with Baud rate detection and set function and detection and set method thereof
  • UART device with Baud rate detection and set function and detection and set method thereof

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Embodiment Construction

[0027] Such as figure 1 Shown is the UART device with the baud rate detection setting function of this embodiment, the device includes a programmable logic device, and the receiving / sending control register 1 and the receiving / sending data register 2 are configured in the programmable logic device And receiving / sending logic unit 5 forms general-purpose asynchronous receiving / sending module, also configures baud rate detection control register 3, baud rate detection data register 4 and baud rate detection logic unit 6 communication waves in the programmable logic device The baud rate detection module, and realizes the configuration of the communication baud rate through the communication between the two modules;

[0028] The receiving / sending control register 1 is used to change the data bits in the register by the computer 7, and is used to control whether the receiving / sending logic unit 5 is in the receiving mode or the sending mode;

[0029] Receive / send data register 2, ...

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Abstract

The invention relates to a UART device with Baud rate detection and set function and a detection and set method thereof. By adopting a programmable logic device, a receiving/sending control register, a receiving/sending data register and a receiving/sending logic unit are collocated, and a Baud rate detection control register, a Baud rate detection data register and a Baud rate detection logic unit are collocated on the basis, therefore, the UART device with the Baud rate detection and set function is formed. The detection and set method is designed, and the convenient and quick detection to the Baud rate of unknown communication equipment during the operating process and the set of the communication Baud rate are realized.

Description

technical field [0001] The invention relates to the communication field, and in particular, to a UART device with a baud rate detection and setting function and a communication equipment baud rate detection and setting method. Background technique [0002] In industrial control, telecommunications and other control systems and some other equipment, serial communication interfaces such as RS232 / 422 / 485 are often used as console or monitoring interfaces. During use, sometimes the working baud rate of the communication equipment is unknown. However, the working parameters of the system cannot be set correctly. Whenever this happens, the usual method is to check the manual or ask the designer or try the commonly used baud rates one by one. This method brings a lot of inconvenience to the use of communication equipment. Contents of the invention [0003] The purpose of the present invention is to provide a UART device with a baud rate detection setting function and its detecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/20H04L12/26
Inventor 刘中海
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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