CN113067779A - Switch and firmware burning system thereof - Google Patents
Switch and firmware burning system thereof Download PDFInfo
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- CN113067779A CN113067779A CN202110222814.XA CN202110222814A CN113067779A CN 113067779 A CN113067779 A CN 113067779A CN 202110222814 A CN202110222814 A CN 202110222814A CN 113067779 A CN113067779 A CN 113067779A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/10—Packet switching elements characterised by the switching fabric construction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
- G06F8/63—Image based installation; Cloning; Build to order
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
Abstract
The invention discloses a switch and a firmware burning system thereof, wherein a signal link switching device in the application can enable a first control chip to form a signal channel with a protocol conversion device in a default state, the control device can burn firmware on the first control chip through the protocol conversion device, and can switch the state of the link switching device after the power supply of the switch controlled by the first control chip is powered on, so that the first control chip, all second control chips and the protocol conversion device are connected in series to form a channel (all control chips are powered on at the moment), all control chips form a chain topology structure at the moment, the control device can burn firmware on the appointed second control chip in the serial channel at the moment, thereby improving the working efficiency and reducing the labor cost, in addition, in the subsequent use process of the switch, firmware upgrading can be carried out on each control chip through the firmware burning system in the application.
Description
Technical Field
The invention relates to the field of switches, in particular to a firmware burning system and a switch.
Background
The switch is a common device in a communication network, a control circuit in the switch comprises a plurality of control chips for single-ended signal control, no running firmware exists in each control chip when the switch leaves a factory, a first control chip is powered on first after receiving a STAND _ BY power supply and can control the power-on time sequence of the switch power supply, and other second control chips are powered on sequentially, so that firmware burning of each second control chip can be realized only after the switch power supply is controlled to be powered on.
However, a mature firmware burning system is lacked in the prior art to efficiently realize firmware burning work for the first control chip and each second control chip, and firmware burning work can only be performed for each control chip in sequence by manually using a computer, so that the working efficiency is low, and the labor cost is high.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a firmware burning system, which improves the working efficiency and reduces the labor cost; another object of the present invention is to provide a switch including the firmware burning system, which improves the working efficiency and reduces the labor cost.
To solve the above technical problem, the present invention provides a firmware burning system, which includes:
the control device is used for burning the firmware of the appointed control chip;
the first end is connected with the control device, a joint test work group protocol JTAG signal output pin is connected with a JTAG signal input pin of the first control chip, and the mode selection pin and the clock pin are respectively connected with a JTAG pin corresponding to each control chip;
the signal link switching device is respectively connected with a JTAG signal input pin of the protocol conversion device, a JTAG signal output pin of the first control chip, a suspended JTAG signal input pin in a JTAG chain and a suspended JTAG signal output pin in the JTAG chain, and is used for connecting the JTAG signal output pin of the first control chip with the JTAG signal input pin of the protocol conversion device in a default state, connecting the JTAG signal output pin of the first control chip with the suspended JTAG signal input pin in the JTAG chain under the control of the first control chip after the switch power supply is powered on, and connecting the suspended JTAG signal output pin in the JTAG chain with the JTAG signal input pin of the protocol conversion device;
the JTAG signal input pins and the JTAG signal output pins of the plurality of second control chips are connected in series end to form the JTAG chain.
Preferably, the signal link switching device includes:
the first signal switch is used for conducting the first end and the second end of the first signal switch when the state switch end of the first signal switch receives a first level, and conducting the first end and the third end of the first signal switch when the state switch end of the first signal switch receives a level opposite to the first level;
the first end of the second signal switch is connected with the second end of the first signal switch, the second end of the second signal switch is connected with a JTAG signal output pin of the first control chip, the third end of the second signal switch is connected with a suspended JTAG signal input pin in the JTAG chain, the state switch end of the second signal switch is connected with a second control pin of the first control chip, and the second signal switch is used for conducting the second end and the first end when the state switch end of the second signal switch receives a second level and conducting the second end and the third end when the state switch end of the second signal switch receives a level opposite to the second level;
the potential pulling device is respectively connected with the first control pin and the second control pin and is used for setting the default level of the first control pin as a first level and setting the default level of the second control pin as a second level;
the first control pin and the second control pin are used for carrying out level turnover under the control of the first control chip after the switch power supply is completely powered on.
Preferably, the electric potential pulling means includes:
the first sub-potential pulling device is connected with the first control pin and is used for setting the default level of the first control pin to be a first level;
and the second sub-potential pulling device is connected with the second control pin and is used for setting the default level of the second control pin to be a second level.
Preferably, the first sub-potential pulling device and the second sub-potential pulling device are both level pull-down circuits.
Preferably, the first signal switch and the second signal switch are both an alternative signal switching chip.
Preferably, the first control chip and all the second control chips are complex programmable logic devices CPLDs.
Preferably, the protocol conversion apparatus includes:
the debugger is connected with the control device and used for converting the received data between the JTAG protocol and the data protocol of the control device and then transmitting the converted data to the opposite terminal;
the first end is connected with the debugger, the JTAG signal output pin is connected with the JTAG signal input pin of the first control chip, and the mode selection pin and the clock pin are respectively connected with the JTAG seat of the JTAG pin corresponding to each control chip, so as to realize the pin connection between the debugger and the corresponding control chip.
Preferably, the firmware burning system further includes:
the prompter is connected with the control device;
the control device is further configured to control the prompter to perform prompting after the burning operation is finished.
Preferably, the indicator is a light emitting diode.
In order to solve the technical problem, the invention also provides a switch, which comprises the firmware burning system.
The invention provides a firmware burning system, wherein a signal link switching device in the application can enable a first control chip to form a signal path between the first control chip and a protocol conversion device under a default state, the control device can burn firmware on the first control chip through the protocol conversion device, and can switch the state of the link switching device after the power supply of a first control chip control switch is powered on, so that the first control chip, all second control chips and the protocol conversion device are connected in series to form a path (all control chips are powered on at the moment), all control chips form a chain topology structure at the moment, the control device can burn firmware on the appointed second control chip in the series path at the moment, a computer is not required to be manually used for sequentially burning a large number of control chips, and the working efficiency is improved, the labor cost is reduced, and in addition, in the subsequent use process of the switch, firmware upgrading can be carried out on each control chip through the firmware burning system in the application.
The invention also provides a switch which has the same beneficial effects as the firmware burning system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a firmware burning system according to the present invention;
FIG. 2 is a schematic structural diagram of another firmware burning system according to the present invention.
Detailed Description
The core of the invention is to provide a firmware burning system, which improves the working efficiency and reduces the labor cost; the other core of the invention is to provide the switch comprising the firmware burning system, so that the working efficiency is improved, and the labor cost is reduced.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a firmware burning system provided by the present invention, the firmware burning system includes:
the control device is used for burning the firmware of the appointed control chip;
the first end is connected with the control device, a JTAG (Joint Test Action Group) signal output pin is connected with a JTAG signal input pin of the first control chip, and the mode selection pin and the clock pin are respectively connected with a JTAG pin corresponding to each control chip;
the signal link switching device is respectively connected with a JTAG signal input pin of the protocol conversion device, a JTAG signal output pin of the first control chip, a suspended JTAG signal input pin in a JTAG chain and a suspended JTAG signal output pin in the JTAG chain, and is used for connecting the JTAG signal output pin of the first control chip with the JTAG signal input pin of the protocol conversion device in a default state, connecting the JTAG signal output pin of the first control chip with the suspended JTAG signal input pin in the JTAG chain under the control of the first control chip after the switch power supply is powered on, and connecting the suspended JTAG signal output pin in the JTAG chain with the JTAG signal input pin of the protocol conversion device;
the JTAG signal input pins and the JTAG signal output pins of the plurality of second control chips are connected in series end to form a JTAG chain.
In particular, in view of the technical problems in the background art, the embodiment of the present invention is to design a firmware burning system, which can first burn a firmware for a first control chip, and then serially connect all the control chips as a JTAG chain to burn a firmware for a designated second control chip, wherein the link switching is involved, so that the firmware burning system in the present application includes a link switching device, which can connect a JTAG signal output pin of the first control chip and a JTAG signal input pin of a protocol conversion device in a default state, so that the protocol conversion device forms a communication loop with the first control chip individually to burn the firmware for the first control chip, and after burning the firmware for the first control chip, the first control chip can control a power-on timing sequence of a power supply of an exchange, and a plurality of second control chips can be powered on accordingly, the first control chip can also control the link switching device to carry out state conversion after the power supply of the control switch is completely electrified, the link switching device can connect the JTAG signal output pin of the first control chip with the suspended JTAG signal input pin in the JTAG chain and connect the suspended JTAG signal output pin in the JTAG chain with the JTAG signal input pin of the protocol conversion device, so that all the control chips and the protocol conversion device form a serial communication passage, and at the moment, the firmware burning of the appointed second control chip can be carried out through the control device.
Wherein, in this application, the staff only need through controlling means alright in order realizing burning the work to the firmware of each appointed control chip, need not to connect each control chip in proper order and burn, has reduced work load, has improved work efficiency, has reduced the human cost.
Specifically, the protocol conversion device includes two ports, one end of the two ports is connected to the control device, and the other end of the two ports is connected to the control chip, so that the above-mentioned "opposite end" refers to the other end corresponding to the port for receiving data.
Specifically, the control device may be of various types, for example, a computer or a processor, and the embodiment of the present invention is not limited herein.
It should be noted that the first control chip and the second control chip may be both used for single-ended signal control, and the first control chip may control a power-on timing of the switch power supply as described in the background art.
The invention provides a firmware burning system, wherein a signal link switching device in the application can enable a first control chip to form a signal path between the first control chip and a protocol conversion device under a default state, the control device can burn firmware on the first control chip through the protocol conversion device, and can switch the state of the link switching device after the power supply of a first control chip control switch is powered on, so that the first control chip, all second control chips and the protocol conversion device are connected in series to form a path (all control chips are powered on at the moment), all control chips form a chain topology structure at the moment, the control device can burn firmware on the appointed second control chip in the series path at the moment, a computer is not required to be manually used for sequentially burning a large number of control chips, and the working efficiency is improved, the labor cost is reduced, and in addition, in the subsequent use process of the switch, firmware upgrading can be carried out on each control chip through the firmware burning system in the application.
The invention also provides a switch which has the same beneficial effects as the firmware burning system.
To better explain the embodiment of the present invention, please refer to fig. 2, fig. 2 is a schematic structural diagram of another firmware burning system provided by the present invention, and based on the embodiment:
as a preferred embodiment, the signal link switching device includes:
the state switching end is connected with a first control pin of the first control chip, the first end is connected with a JTAG signal input pin of the protocol conversion device, the third end is connected with a suspended JTAG signal output pin in a JTAG chain, and the first signal switching switch is used for conducting the first end and the second end of the state switching switch when the state switching end receives a first level and conducting the first end and the third end of the state switching switch when the state switching end receives a level opposite to the first level;
the first end is connected with the second end of the first signal change-over switch, the second end is connected with a JTAG signal output pin of the first control chip, the third end is connected with a suspended JTAG signal input pin in a JTAG chain, the state change-over end is connected with the second signal change-over switch of the second control pin of the first control chip, and the second signal change-over switch is used for conducting the second end and the first end when the state change-over end receives a second level, and conducting the second end and the third end when the state change-over end receives a level opposite to the second level;
the potential pulling device is respectively connected with the first control pin and the second control pin and is used for setting the default level of the first control pin as a first level and setting the default level of the second control pin as a second level;
the first control pin and the second control pin are used for carrying out level overturning under the control of the first control chip after the switch power supply is powered on.
Specifically, the core of the signal link switch device is a first signal switch and a second signal switch, both of which have two states, and in the default state (i.e. when the first control chip does not complete the control of the power-on timing sequence of the switch), the first signal switch receives the first level due to the action of the potential pulling device, so that the state switch end of the second signal switch receives the second level, and both of which are in the default state, the effect at this time is to connect the JTAG signal output pin of the first control chip with the JTAG signal input pin of the protocol conversion device, and control the level inversion of the first control pin and the second control pin when the first control chip completes the control of the power-on timing sequence of the switch, so that the states of the first signal switch and the second signal switch are switched to the other state, therefore, the JTAG signal output pin of the first control chip is connected with the suspended JTAG signal input pin in the JTAG chain, the suspended JTAG signal output pin in the JTAG chain is connected with the JTAG signal input pin of the protocol conversion device, and all the control chips and the protocol conversion device are connected in series to form a communication channel.
The potential pulling device can make the first signal switch be in a first level and make the second signal switch be in a second level under the condition that the first control pin and the second control pin are not controlled, but can overturn the level when being actively controlled by the first control chip.
Specifically, not only is the firmware first burned when the switch leaves the factory, but also the firmware burning system in the application can be used for upgrading the firmware if the firmware needs to be upgraded in the subsequent use process of the switch.
The first level and the second level may be both a low level or a high level, which is not limited herein in the embodiments of the present invention.
As a preferred embodiment, the potential pulling means includes:
the first sub-potential pulling device is connected with the first control pin and is used for setting the default level of the first control pin to be a first level;
and the second sub-potential pulling device is connected with the second control pin and is used for setting the default level of the second control pin to be a second level.
Specifically, each control pin comprises an independent sub-potential pulling device, so that the structure is clear and convenient to maintain.
In a preferred embodiment, the first sub-potential pulling device and the second sub-potential pulling device are both level-pull-down circuits.
Specifically, the level pull-down circuit has the advantages of simple structure, low cost and power saving.
Of course, in addition to the level pull-down circuit, the first sub-potential pulling device and the second sub-potential pulling device may also be level pull-up circuits, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the first signal switch and the second signal switch are both an alternative signal switching chip.
Specifically, the alternative signal switching chip has the advantages of small size, low cost, long service life and the like.
Of course, the first signal switch and the second signal switch may be of other types besides the alternative signal switch chip, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the first control chip and all the second control chips are CPLDs (Complex Programming logic devices).
Specifically, the CPLD has the advantages of small size, low cost, long service life, and the like.
Of course, the first control chip and all the second control chips may be of other types besides the CPLD, such as an FPGA (Field Programmable Gate Array), and the like, and the embodiments of the present invention are not limited herein.
As a preferred embodiment, the protocol conversion apparatus includes:
the debugger is connected with the control device and used for converting the received data between the JTAG protocol and the data protocol of the control device and then transmitting the converted data to the opposite terminal;
the first end is connected with the debugger, the JTAG signal output pin is connected with the JTAG signal input pin of the first control chip, and the mode selection pin and the clock pin are respectively connected with the JTAG seat of the JTAG pin corresponding to each control chip and used for realizing the pin connection between the debugger and the corresponding control chip.
Specifically, the debugger can perform protocol conversion, and the JTAG seat can be used as a connector to perform connection between the control chip and the debugger.
Of course, the protocol conversion device may be of other types besides the specific configuration, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the firmware burning system further includes:
the prompter is connected with the control device;
the control device is further used for controlling the prompter to prompt after the burning work is finished.
Specifically, in order to facilitate the working personnel to know whether the burning operation is finished in time, the control device in the embodiment of the invention can also control the prompter to prompt after the burning operation is finished, so that the working personnel can know that the burning operation is finished at the first time through the prompter, and the working efficiency is improved.
In a preferred embodiment, the indicator is a light emitting diode.
In order to solve the technical problem, the invention also provides a switch which comprises the firmware burning system.
Specifically, the light emitting diode has the advantages of small volume, low cost, long service life and the like.
Of course, the switch may be of various types other than the led, and the embodiment of the present invention is not limited herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. 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.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A firmware burning system, comprising:
the control device is used for burning the firmware of the appointed control chip;
the first end is connected with the control device, a joint test work group protocol JTAG signal output pin is connected with a JTAG signal input pin of the first control chip, and the mode selection pin and the clock pin are respectively connected with a JTAG pin corresponding to each control chip;
the signal link switching device is respectively connected with a JTAG signal input pin of the protocol conversion device, a JTAG signal output pin of the first control chip, a suspended JTAG signal input pin in a JTAG chain and a suspended JTAG signal output pin in the JTAG chain, and is used for connecting the JTAG signal output pin of the first control chip with the JTAG signal input pin of the protocol conversion device in a default state, connecting the JTAG signal output pin of the first control chip with the suspended JTAG signal input pin in the JTAG chain under the control of the first control chip after the switch power supply is powered on, and connecting the suspended JTAG signal output pin in the JTAG chain with the JTAG signal input pin of the protocol conversion device;
the JTAG signal input pins and the JTAG signal output pins of the plurality of second control chips are connected in series end to form the JTAG chain.
2. The firmware burning system of claim 1, wherein the signal link switching device comprises:
the first signal switch is used for conducting the first end and the second end of the first signal switch when the state switch end of the first signal switch receives a first level, and conducting the first end and the third end of the first signal switch when the state switch end of the first signal switch receives a level opposite to the first level;
the first end of the second signal switch is connected with the second end of the first signal switch, the second end of the second signal switch is connected with a JTAG signal output pin of the first control chip, the third end of the second signal switch is connected with a suspended JTAG signal input pin in the JTAG chain, the state switch end of the second signal switch is connected with a second control pin of the first control chip, and the second signal switch is used for conducting the second end and the first end when the state switch end of the second signal switch receives a second level and conducting the second end and the third end when the state switch end of the second signal switch receives a level opposite to the second level;
the potential pulling device is respectively connected with the first control pin and the second control pin and is used for setting the default level of the first control pin as a first level and setting the default level of the second control pin as a second level;
the first control pin and the second control pin are used for carrying out level turnover under the control of the first control chip after the switch power supply is completely powered on.
3. The firmware burning system of claim 2, wherein the potential pulling device comprises:
the first sub-potential pulling device is connected with the first control pin and is used for setting the default level of the first control pin to be a first level;
and the second sub-potential pulling device is connected with the second control pin and is used for setting the default level of the second control pin to be a second level.
4. The firmware burning system of claim 3, wherein the first sub-level pulling device and the second sub-level pulling device are both level-pull-down circuits.
5. The firmware burning system of claim 2, wherein the first signal switch and the second signal switch are both alternative signal switching chips.
6. The firmware burning system of claim 2, wherein the first control chip and all the second control chips are Complex Programmable Logic Devices (CPLDs).
7. The firmware burning system of claim 1, wherein the protocol conversion device comprises:
the debugger is connected with the control device and used for converting the received data between the JTAG protocol and the data protocol of the control device and then transmitting the converted data to the opposite terminal;
the first end is connected with the debugger, the JTAG signal output pin is connected with the JTAG signal input pin of the first control chip, and the mode selection pin and the clock pin are respectively connected with the JTAG seat of the JTAG pin corresponding to each control chip, so as to realize the pin connection between the debugger and the corresponding control chip.
8. The firmware burning system as claimed in any one of claims 1 to 7, further comprising:
the prompter is connected with the control device;
the control device is further configured to control the prompter to perform prompting after the burning operation is finished.
9. The firmware burning system of claim 8, wherein the indicator is a light emitting diode.
10. A switch comprising a firmware burning system as claimed in any one of claims 1 to 9.
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| CN202110222814.XA CN113067779A (en) | 2021-02-26 | 2021-02-26 | Switch and firmware burning system thereof |
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| CN202110222814.XA CN113067779A (en) | 2021-02-26 | 2021-02-26 | Switch and firmware burning system thereof |
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| CN113865019A (en) * | 2021-09-27 | 2021-12-31 | 珠海格力电器股份有限公司 | Frequency converter address burning method and device and air conditioner |
| CN114895612A (en) * | 2022-07-11 | 2022-08-12 | 深圳市杰美康机电有限公司 | Simulation system and simulation control method for DSP chip |
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| US20180164368A1 (en) * | 2016-12-12 | 2018-06-14 | Inventec (Pudong) Technology Corporation | Testing Circuit Board With Self-Detection Function And Self-Detection Method Thereof |
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