CN110704352A - Multi-serial port management equipment, method and device and storage medium - Google Patents
Multi-serial port management equipment, method and device and storage medium Download PDFInfo
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- CN110704352A CN110704352A CN201910912898.2A CN201910912898A CN110704352A CN 110704352 A CN110704352 A CN 110704352A CN 201910912898 A CN201910912898 A CN 201910912898A CN 110704352 A CN110704352 A CN 110704352A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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Abstract
The application discloses a multi-serial port management device, a method and a device and a computer readable storage medium, the device comprises: a plurality of serial ports; the CPLD chip is connected with the serial ports; the USB-to-serial port chip is connected with the CPLD chip; the USB-to-serial port chip is connected with an upper computer, the upper computer is used for setting working modes of the CPLD chip, and the working modes comprise a multi-serial port switching mode and a serial port monitoring mode. The application provides a multiple serial ports management equipment, when the CPLD chip is in serial ports monitoring mode, can realize the connection between the arbitrary serial ports to two-way monitoring data, the host computer can also carry out simultaneous control to a plurality of serial ports.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a multi-serial port management apparatus, a multi-serial port management method, a multi-serial port management apparatus, and a computer-readable storage medium.
Background
Because the market orientation of the main boards is different, many new main boards do not have Serial interfaces, and USB (Universal Serial Bus, English) interfaces are used for replacing most other communication interfaces, so that some main boards encounter difficulties when being connected with Serial devices.
In the related art, a four-out-of-one switch is generally used for realizing the function of converting a multi-serial port into a USB (universal serial bus), and only the connection of a single serial port can be realized, which is equivalent to integrating a plurality of single USB-to-serial ports together and does not have the function of bidirectional monitoring of the serial port.
Therefore, how to realize the serial port bidirectional monitoring function by using the multi-serial port to USB device is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a multi-serial port management device, a multi-serial port management method, a multi-serial port management device and a computer readable storage medium, and the multi-serial port to USB device is utilized to realize a serial port bidirectional monitoring function.
In order to achieve the above object, the present application provides a multi-serial port management device, which includes a plurality of serial ports;
the CPLD chip is connected with the serial ports;
the USB-to-serial port chip is connected with the CPLD chip; the USB-to-serial port chip is connected with an upper computer, the upper computer is used for setting working modes of the CPLD chip, and the working modes comprise a multi-serial port switching mode and a serial port monitoring mode.
Wherein, still include:
the serial port indicator lamps are connected with the CPLD chip and used for marking the connection state of the serial port; the serial port indicator lamps correspond to the serial ports one by one.
Wherein, still include:
and the input device is connected with the CPLD chip and is used for setting the working mode of the CPLD chip.
Wherein the input device comprises a key.
The CPLD serial port is connected with the CPLD chip through the level conversion chip.
In order to achieve the above object, the present application provides a multi-serial port management method, which is applied to an upper computer, and includes:
determining the working mode of the CPLD chip;
if the working mode is a multi-serial port switching mode, determining a first target serial port which is currently connected with the CPLD, and performing data interaction with the first target serial port through the CPLD chip;
and if the working mode is a serial port monitoring mode, determining a plurality of second target serial ports which are currently connected with the CPLD, and configuring the connection among the plurality of second target serial ports through the CPLD so that any second target serial port can monitor the data of other second target serial ports through the CPLD.
Wherein, if the working mode is a serial port monitoring mode, the method further comprises:
and monitoring data of a plurality of second target serial ports.
For realizing above-mentioned purpose, this application provides a many serial ports management device, is applied to the host computer, includes:
the determining module is used for determining the working mode of the CPLD chip;
the interaction module is used for determining a first target serial port which is currently connected with the CPLD and carrying out data interaction with the first target serial port through the CPLD chip if the working mode is a multi-serial port switching mode;
and the configuration module is used for determining a plurality of second target serial ports which are currently connected with the CPLD if the working mode is a serial port monitoring mode, and configuring the connection among the plurality of second target serial ports through the CPLD so that any one second target serial port monitors the data of other second target serial ports through the CPLD.
Wherein, if the working mode is a serial port monitoring mode, the method further comprises:
and the monitoring module is used for monitoring the data of the plurality of second target serial ports.
To achieve the above object, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the multi-serial port management method as described above.
According to the scheme, the multi-serial-port management device comprises a plurality of serial ports; the CPLD chip is connected with the serial ports; the USB-to-serial port chip is connected with the CPLD chip; the USB-to-serial port chip is connected with an upper computer, the upper computer is used for setting working modes of the CPLD chip, and the working modes comprise a multi-serial port switching mode and a serial port monitoring mode.
The utility model provides a multiple serial ports management equipment can set up the mode of CPLD chip through the host computer, when it is in multiple serial ports switching mode, can select arbitrary serial ports to connect the host computer, carries out the data interaction through the CPLD chip between two kinds, realizes the conversion between computer USB interface to the general serial ports, provides quick passageway for the computer that does not have the serial ports. When the CPLD chip is in a serial port monitoring mode, connection between any serial ports can be realized, data can be monitored bidirectionally, and the upper computer can also control a plurality of serial ports simultaneously. The application also discloses a multi-serial port management device, an electronic device and a computer readable storage medium, and the technical effects can be realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a block diagram illustrating a multiple serial port management device according to an exemplary embodiment;
fig. 2 is a block diagram illustrating another multi-serial port management device according to an exemplary embodiment;
fig. 3 is a block diagram illustrating yet another multiple serial port management device in accordance with an illustrative embodiment;
FIG. 4 is a flow diagram illustrating a method for multiple serial port management in accordance with an illustrative embodiment;
fig. 5 is a block diagram illustrating a multi-serial port management apparatus according to an exemplary embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application discloses a multi-serial port management device, as shown in fig. 1, comprising a plurality of serial ports 100;
a CPLD chip 200 connected to the plurality of serial ports 100;
a USB-to-serial port chip 300 connected with the CPLD chip 200; the USB-to-serial port chip 300 is connected to an upper computer, the upper computer is used for setting the working modes of the CPLD chip 200, and the working modes include a multi-serial port switching mode and a serial port monitoring mode.
In this embodiment, the serial port terminal is connected to a CPLD (Complex Programmable Logic Device, full name of chinese) chip through a serial port, the serial port and the CPLD chip are connected through a UART TTL, and the UART (Asynchronous serial, full name of chinese: Universal Asynchronous Receiver/Transmitter) is a chip that converts parallel input into serial output and is usually integrated on a motherboard. The CPLD chip is connected to the upper computer through the USB-to-serial port chip, so that the connection between the serial port terminal and the upper computer is realized, and the function of converting the serial port to the USB is realized. The upper computer here includes a terminal having a USB interface, such as a notebook.
Two working modes of the CPLD chip exist: the multi-serial port switching mode and the serial port monitoring mode can be switched by the upper computer. Under the mode of multi-serial port switching, a user can select the serial port currently connected to the CPLD chip through the upper computer, the serial port terminal connected with the serial port can perform data interaction with the upper computer through the CPLD chip, namely, the data sent by the serial port terminal can be checked through the upper computer, and the data can also be sent to the serial port terminal. Under the serial port monitoring mode, a user can select a plurality of serial ports which are currently connected to the CPLD chip through the upper computer, the serial port terminals connected with the plurality of serial ports can check data of each other through the CPLD chip, and the upper computer can check the data of the serial port terminals through the CPLD chip. It is understood that the number of serial ports connected to the CPLD chip is not limited herein, for example, serial ports A, B and C are connected to the CPLD chip simultaneously, and serial port a may monitor data of serial ports B and C.
Preferably, as shown in fig. 2, the multiple serial port management device provided in this embodiment further includes: a plurality of serial port indicator lamps 400 connected with the CPLD chip 200 and used for marking the connection state of the serial port; the serial port indicator lamps correspond to the serial ports one by one. In specific implementation, a serial port indicator lamp corresponding to the serial port is turned on to indicate that the serial port is currently connected to the CPLD chip, when the CPLD chip is in a multi-serial port switching mode, the serial port can perform data interaction with an upper computer, and when the CPLD chip is in a serial port monitoring mode, the turned-on serial ports of the serial port indicator lamp can monitor data of each other.
Preferably, as shown in fig. 2, the multiple serial port management device provided in this embodiment further includes: and the input device 500 is connected with the CPLD chip 200 and is used for setting the working mode of the CPLD chip. In specific implementation, a user can set the operating mode of the CPLD chip through the input device, and can also set the serial port currently connected to the CPLD chip through the input device. Preferably, the input means comprises a key.
The multi-serial port management device provided by the embodiment of the application can set the working mode of the CPLD chip through the upper computer, when the multi-serial port management device is in a multi-serial port switching mode, any serial port can be selected to be connected with the upper computer, data interaction is carried out between the two types of serial ports through the CPLD chip, the conversion from a USB interface of a computer to a universal serial port is realized, and a quick channel is provided for the computer without the serial port. When the CPLD chip is in a serial port monitoring mode, connection between any serial ports can be realized, data can be monitored bidirectionally, and the upper computer can also control a plurality of serial ports simultaneously.
The embodiment of the application discloses a multi-serial port management device, and compared with the previous embodiment, the embodiment further describes and optimizes the technical scheme. Specifically, as shown in fig. 3, the serial port includes a plurality of serial ports 100;
a CPLD chip 200 connected to the plurality of serial ports 100;
a USB-to-serial port chip 300 connected with the CPLD chip 200; the USB-to-serial port chip 300 is connected with an upper computer, the upper computer is used for setting working modes of the CPLD chip 200, and the working modes comprise a multi-serial port switching mode and a serial port monitoring mode;
a plurality of serial port indicator lamps 400 connected with the CPLD chip 200 and used for marking the connection state of the serial port;
the input device 500 is connected with the CPLD chip 200 and is used for setting the working mode of the CPLD chip;
a level conversion chip 600; the plurality of serial ports 100 are connected with the CPLD chip 200 through the level conversion chip 600.
In this embodiment, for a serial port terminal using other levels such as 232, 485, 422, etc., a level conversion chip may be provided between the serial port and the CPLD chip. The UART comprises a serial port with TTL level and a serial port with RS232 level. TTL level is 3.3V, and RS232 is a negative logic level, which defines + 5- +12V as low level and-12- + 5V as high level. The CPLD chip adopts TTL level, so if the serial port terminal uses 232 other levels, a level conversion chip needs to be added between the serial port and the CPLD chip to improve the compatibility of the multi-serial port management device.
The embodiment of the application discloses a multi-serial port management method, which realizes a serial port bidirectional monitoring function by using a multi-serial port to USB device.
Referring to fig. 4, a flowchart of a multi-serial port management method according to an exemplary embodiment is shown, and as shown in fig. 4, the method includes:
s101: determining the working mode of the CPLD chip;
s102: if the working mode is a multi-serial port switching mode, determining a first target serial port which is currently connected with the CPLD, and performing data interaction with the first target serial port through the CPLD chip;
s103: and if the working mode is a serial port monitoring mode, determining a plurality of second target serial ports which are currently connected with the CPLD, and configuring the connection among the plurality of second target serial ports through the CPLD so that any second target serial port can monitor the data of other second target serial ports through the CPLD.
On the basis of this embodiment, as a preferred embodiment, if the working mode is a serial port monitoring mode, the method further includes: and monitoring data of a plurality of second target serial ports.
According to the multi-serial port management method provided by the embodiment of the application, the working mode of the CPLD chip can be set through the upper computer, when the multi-serial port management method is in a multi-serial port switching mode, any serial port can be selected to be connected with the upper computer, data interaction is carried out between the two types of serial ports through the CPLD chip, the conversion from a USB interface of a computer to a universal serial port is realized, and a quick channel is provided for the computer without the serial port. When the CPLD chip is in a serial port monitoring mode, connection between any serial ports can be realized, data can be monitored bidirectionally, and the upper computer can also control a plurality of serial ports simultaneously.
In the following, a multi-serial management apparatus provided in an embodiment of the present application is introduced, and a multi-serial management apparatus described below and a multi-serial management method described above may refer to each other.
Referring to fig. 5, a block diagram of a multiple serial port management apparatus according to an exemplary embodiment is shown, and as shown in fig. 5, the block diagram includes:
a determining module 501, configured to determine a working mode of the CPLD chip;
an interaction module 502, configured to determine a first target serial port currently connected to the CPLD if the working mode is a multi-serial port switching mode, and perform data interaction with the first target serial port through the CPLD chip;
the configuration module 503 is configured to determine a plurality of second target serial ports currently connected to the CPLD if the operating mode is the serial port monitoring mode, and configure the connection between the plurality of second target serial ports through the CPLD, so that any one of the second target serial ports monitors data of other second target serial ports through the CPLD.
On the basis of this embodiment, as a preferred embodiment, if the working mode is a serial port monitoring mode, the method further includes: and the monitoring module is used for monitoring the data of the plurality of second target serial ports.
The multi-serial port management device provided by the embodiment of the application can set the working mode of the CPLD chip through the upper computer, when the multi-serial port management device is in a multi-serial port switching mode, any serial port can be selected to be connected with the upper computer, data interaction is carried out between the two types of serial ports through the CPLD chip, the conversion from a USB interface of a computer to a universal serial port is realized, and a quick channel is provided for the computer without the serial port. When the CPLD chip is in a serial port monitoring mode, connection between any serial ports can be realized, data can be monitored bidirectionally, and the upper computer can also control a plurality of serial ports simultaneously.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-mentioned multi-serial port management method is also provided.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A multi-serial port management device is characterized by comprising a plurality of serial ports;
the CPLD chip is connected with the serial ports;
the USB-to-serial port chip is connected with the CPLD chip; the USB-to-serial port chip is connected with an upper computer, the upper computer is used for setting working modes of the CPLD chip, and the working modes comprise a multi-serial port switching mode and a serial port monitoring mode.
2. The multi-serial port management device according to claim 1, further comprising:
the serial port indicator lamps are connected with the CPLD chip and used for marking the connection state of the serial port; the serial port indicator lamps correspond to the serial ports one by one.
3. The multi-serial port management device according to claim 1, further comprising:
and the input device is connected with the CPLD chip and is used for setting the working mode of the CPLD chip.
4. The multiple serial port management device according to claim 3, wherein the input means comprises a key.
5. The multi-serial port management device according to any one of claims 1 to 4, further comprising a level conversion chip, wherein a plurality of the serial ports are connected to the CPLD chip through the level conversion chip.
6. A multi-serial port management method is characterized by being applied to an upper computer and comprising the following steps:
determining the working mode of the CPLD chip;
if the working mode is a multi-serial port switching mode, determining a first target serial port which is currently connected with the CPLD, and performing data interaction with the first target serial port through the CPLD chip;
and if the working mode is a serial port monitoring mode, determining a plurality of second target serial ports which are currently connected with the CPLD, and configuring the connection among the plurality of second target serial ports through the CPLD so that any second target serial port can monitor the data of other second target serial ports through the CPLD.
7. The multi-serial port management method according to claim 6, wherein if the working mode is a serial port monitoring mode, the method further comprises:
and monitoring data of a plurality of second target serial ports.
8. The utility model provides a multiple serial ports management device which characterized in that is applied to the host computer, includes:
the determining module is used for determining the working mode of the CPLD chip;
the interaction module is used for determining a first target serial port which is currently connected with the CPLD and carrying out data interaction with the first target serial port through the CPLD chip if the working mode is a multi-serial port switching mode;
and the configuration module is used for determining a plurality of second target serial ports which are currently connected with the CPLD if the working mode is a serial port monitoring mode, and configuring the connection among the plurality of second target serial ports through the CPLD so that any one second target serial port monitors the data of other second target serial ports through the CPLD.
9. The multi-serial port management device according to claim 8, wherein if the operating mode is a serial port monitoring mode, the device further comprises:
and the monitoring module is used for monitoring the data of the plurality of second target serial ports.
10. A computer-readable storage medium, having stored thereon a computer program for implementing the steps of the multi-serial port management method according to claim 6 or 7 when being executed by a processor.
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Application publication date: 20200117 |