CN106850067A - The signal processing method of optical module and optical module - Google Patents
The signal processing method of optical module and optical module Download PDFInfo
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- CN106850067A CN106850067A CN201710078201.7A CN201710078201A CN106850067A CN 106850067 A CN106850067 A CN 106850067A CN 201710078201 A CN201710078201 A CN 201710078201A CN 106850067 A CN106850067 A CN 106850067A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
Abstract
The present invention is the signal processing method on a kind of optical module and optical module, is related to technical field of photo communication.In the optical module, the latch controlling switch of microprocessor is connected with the control end of latch, for sending control signal to the control end of latch；The light transmitting pin and/or light-receiving pin of microprocessor are connected with the input of latch, for the level state signal of the level state signal of light transmitting pin and/or light-receiving pin to be sent to the input of latch；The output end of latch is connected with the input of laser driver, for sending the level state signal of light transmitting pin and/or the level state signal of light-receiving pin to laser driver；The output end of laser driver is connected with optical transmitting set, and/or is connected with optical receiver, the level state signal and/or the level state signal of light-receiving pin of the light transmitting pin for being received according to its input, and control optical transmitting set and/or optical receiver work.
Description
Technical field
The present invention relates to technical field of photo communication, more particularly to a kind of optical module and optical module signal processing method.
Background technology
The integrated module of optical transceiver, abbreviation optical module (optical module), be optical communication field equipment in one kind
Standard module.As shown in figure 1, optical module 10 includes optical transmitting set 101, optical receiver 102, microprocessor 103 and Laser Driven
The grade device of device 104.When the transmitting of traveling optical signal is entered, microprocessor 103 is sent for launching optical signal to laser driver 104
Associated control signal, laser driver 104 according to for launch optical signal associated control signal control optical transmitting set 101
Electric signal is converted into optical signal, and optical transmitting set 101 is by the optical signal transmission after conversion to optical fiber.Entering connecing for traveling optical signal
Time receiving, microprocessor 103 sends the associated control signal for receiving optical signal, laser driver 104 to laser driver 104
Control optical receiver 102 that the optical signal of Optical Fiber Transmission is converted into telecommunications according to for receiving the associated control signal of optical signal
Number.
In recent years, the requirement more and more higher with user to bandwidth, fiber-to-the-home popularization etc., the development of optical module is prominent to fly
Push ahead vigorously.With the development of industry, the function of optical module 10 also constantly improve.Optical module 10 is realized by way of software upgrading
The increase of the New function of optical module 10 or the reparation of leak.The upgrade method of tradition optical module is at present：Microprocessor 103 is received
After the upgrade command that host computer sends, microprocessor 103 performs corresponding ROMPaq, and after the completion of upgrading, microprocessor
103 need restarting, and then perform the program after upgrading.
But in above-mentioned upgrade method, microprocessor 103 is after the completion of upgrading, it is necessary to restart, microprocessor 103
Restarting can cause its transmission to the control signal of laser driver 104 to change.For example, the phase for launching optical signal
Include open and close controlling signal in the control signal of pass, open and close controlling signal is for controlling optical transmitting set 101 to open and close
Signal.When open and close controlling signal is low level signal, control optical transmitting set 101 is opened.It is high level in open and close controlling signal
During signal, control optical transmitting set 101 is closed.When optical module 10 normally runs, microprocessor 10 need to send out open and close controlling signal
Laser driver 104 is delivered to, to cause that laser driver 104 controls the open and close of optical transmitting set 101 according to opening and closing signal.
Before the upgrading of optical module 10, microprocessor 103 is low level signal to the open and close controlling signal that laser driver 104 sends, and is swashed
CD-ROM driver 104 controls optical transmitting set 101 to open according to low level open and close controlling signal.And upgrade in optical module 10 and complete,
During microprocessor 103 restarts, all control signals that microprocessor 103 sends can be height within a period of time
Level signal.The open and close controlling signal that can so cause laser driver 104 to receive changes, as, by low level signal
It is changed into high level signal, and laser driver 104 can control optical transmitting set when the open and close controlling signal of high level is received
101 close.So, in the restarting procedure of microprocessor 103, the outage of optical transmitting set 101 can be caused so that optical module
10 cannot normal work, cause communication service occur interrupt.
The content of the invention
To overcome problem present in correlation technique, the present invention to provide a kind of signal processing method and optical mode of optical module
Block.
A kind of first aspect according to embodiments of the present invention, there is provided optical module, including：Microprocessor, latch, laser drives
Dynamic device, optical transmitting set and/or optical receiver；Wherein, the control of the latch controlling switch of the microprocessor and the latch
End connection, for sending the control signal whether control latch latches to the control end of the latch；The microprocessor
Light transmitting pin and/or light-receiving pin be connected with the input of the latch, for by light transmitting pin level shape
The level state signal of state signal and/or light-receiving pin is sent to the input of the latch；The output of the latch
End is connected with the input of the laser driver, for the control signal received according to control end, to the Laser Driven
Device sends the level state signal of light transmitting pin and/or the level state signal of light-receiving pin；The laser driver
Output end is connected with the optical transmitting set, and/or the output end of the laser driver is connected with the optical receiver, for root
The level state signal and/or the level state signal of light-receiving pin of the light transmitting pin received according to its input, control institute
State optical transmitting set and/or optical receiver work.
Alternatively, the microprocessor, specifically for when upgrade command is received, it latches controlling switch to the lock
The control end of storage sends and latches trigger signal；The latch trigger signal is indicated for what the latches were received
Signal；
The latch, specifically for when its control end receives latch trigger signal, by described in input reception
The level state signal of light transmitting pin and/or the level state signal latch of the light-receiving pin, and continue latch
The level state signal of light transmitting pin and/or the level state signal of light-receiving pin are sent to the laser driver.
Alternatively, the microprocessor, is additionally operable to when completion is upgraded, and it latches the control end of controlling switch to latch
Send and latch shutdown signal, its light transmitting pin and/or light-receiving pin send light transmitting and draw to the input of latch again
The level state signal of pin and/or the level state signal of light-receiving pin；The latch shutdown signal is indicated for described
The signal that latch will be received is forwarded to the signal of the laser driver；
The latch, is additionally operable to, when its control end receives latch shutdown signal, release and latch, and by input weight
The new level state signal of light transmitting pin for receiving and/or the level state signal of light-receiving pin are forwarded to described sharp
CD-ROM driver.
Alternatively, the microprocessor, if specifically for not receiving upgrade command, to the control of the latch
End sends latches shutdown signal；
The latch, specifically for when its control end receives latch shutdown signal, by described in input reception
The level state signal of light transmitting pin and/or the level state signal of light-receiving pin are forwarded to laser driver.
A kind of second aspect according to embodiments of the present invention, there is provided signal processing method of optical module, is applied to above-mentioned reality
The optical module described in example is applied, methods described includes：Microprocessor to latch send light transmitting pin level state signal and/
Or the level state signal of light-receiving pin；If receiving upgrade command, the microprocessor sends to the latch
Trigger signal is latched, the level state signal and/or light-receiving of pin are launched with the light for the latch is received
The level state signal latch of pin, and in the microprocessor escalation process, the light for continuing to latch launches pin
Level state signal and/or the level state signal of light-receiving pin send to the laser driver, so as to the laser
The level state signal of level state signal and/or light-receiving pin that driver launches pin according to the light controls the light
Transmitter and/or the optical receiver work；It is described to latch the letter that trigger signal is used to indicate the latches to receive
Number；The microprocessor carries out upgrading processing according to the upgrade command.
Alternatively, when upgrading is completed, the microprocessor sends latch shutdown signal to latch and light launches pin
The level state signal of level state signal and/or light-receiving pin, is latched, and will connect again with causing that the latch is released
The level state signal of light transmitting pin and/or the level state signal of light-receiving pin received are forwarded to the laser and drive
Dynamic device；The signal that shutdown signal is latched for indicating the latch to receive is forwarded to the laser driver.
A kind of third aspect according to embodiments of the present invention, there is provided signal processing method of optical module, is applied to above-mentioned reality
The optical module described in example is applied, methods described includes：Latch receive microprocessor light transmitting pin level state signal and/
Or the level state signal of light-receiving pin；If receiving the latch trigger signal that the microprocessor sends, the lock
The level state signal and/or the level state signal latch of light-receiving pin of the light transmitting pin that storage will be received；And
In the microprocessor escalation process, the lasting light that will be latched launches the level state signal and/or light-receiving of pin
The level state signal of pin is sent to laser driver, to cause that the laser driver launches the electricity of pin according to the light
The level state signal of level state signal and/or light-receiving pin controls the optical transmitting set and/or optical receiver work；
It is described to latch the signal that trigger signal is used to indicate the latches to receive.
Alternatively, when the microprocessor upgrades completion, if receiving the latch closing that the microprocessor sends
Signal, then the latch release and latch, and receive again the light transmitting pin of the microprocessor level state signal and/
Or the level state signal of light-receiving pin；It is described to latch the signal turn that shutdown signal is used to indicate the latch to receive
It is sent to the laser driver；
The level state signal and/or light of the light transmitting pin of the microprocessor that the latch will be received again connect
The level state signal of spasm pin is forwarded to the laser driver.
The technical scheme that embodiments of the invention are provided can include the following benefits：Optical module includes microprocessor,
Latch, laser driver, optical transmitting set and/or optical receiver.Wherein, the latch controlling switch of microprocessor and the latch
The control end connection of device, for sending the control signal whether control latch latches to the control end of the latch；It is described
The light transmitting pin and/or light-receiving pin of microprocessor are connected with the input of the latch, for light to be launched into pin
Level state signal and/or the level state signal of light-receiving pin send to the input of the latch；The latch
The output end of device is connected with the input of the laser driver, for the control signal received according to control end, to described
Laser driver sends the level state signal of light transmitting pin and/or the level state signal of light-receiving pin；The laser
The output end of driver is connected with the optical transmitting set, and/or the output end of the laser driver connects with the optical receiver
Connect, the level state signal and/or the level state letter of light-receiving pin of the light transmitting pin for being received according to its input
Number, control the optical transmitting set and/or optical receiver work.So, during microprocessor is upgraded, by locking
The level state signal that storage continues the level state signal and light-receiving pin that the light of latch is launched into pin is sent to laser
Driver, so, the optical transmitting set and the control signal of optical receiver that laser driver is received do not change, so as in Wei Chu
In reason device escalation process, laser driver can normally control optical transmitting set and optical receiver to work, will not be because of microprocessor
Device is upgraded and the optical transmitting set of laser driver reception and the associated control signal of optical receiver is changed, such that it is able to protect
The normal work of optical module is demonstrate,proved, communication service is reduced and the possibility interrupted is occurred.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets implementation of the invention
Example, and be used to explain principle of the invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
A kind of structural representation of optical module that Fig. 1 is provided for this prior art；
Fig. 2 is a kind of structural representation of optical module provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet of the signal processing method of optical module provided in an embodiment of the present invention；
Fig. 4 is the schematic flow sheet of the signal processing method of another optical module provided in an embodiment of the present invention；
Fig. 5 is the schematic flow sheet of the signal processing method of another optical module provided in an embodiment of the present invention.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in implementation method do not represent and the consistent all implementation methods of the present invention.Conversely, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Optical module is the integrated module of optical transceiver, for opto-electronic conversion.With reference to shown in Fig. 1, included in existing optical module 10
There are the devices such as optical transmitting set 101, optical receiver 102, microprocessor 103 and laser driver 104.Wherein, in optical module 10
In the course of work, microprocessor 103 need to send the related of the control open and close of optical transmitting set 101 to laser driver 104
Light emissioning controling signal, optical transmitting set 101 is controlled to cause laser driver 104 according to the light emissioning controling signal for receiving
Open and close.Optical receiver 102 is controlled to open and close likewise, microprocessor 103 also needs to be sent to laser driver 104
Related light-receiving control signal, to cause that laser driver 104 controls light to connect according to the light-receiving control signal for receiving
Receive the open and close of device 102.Because control optical transmitting set 101 and optical receiver 102 only open and close two states, because
This can realize the open and close to optical transmitting set 101 and optical receiver 102 using the low and high level state of level signal
Control.For example, when light emission signal is low level signal, control optical transmitting set 101 is opened, when light emission signal is high level
During signal, control optical transmitting set 101 is closed.So, the level signal that microprocessor 103 can be exported by different pins
To send the control signal of correlation to laser driver 104.The level signal exported in microprocessor 103 is used to control light to send out
The pin of the correlation of emitter 101, referred to as light launch pin.The level signal exported in microprocessor 103 is used to control light hair to connect
Receive the pin of the correlation of device 102, referred to as light-receiving pin.That is, the light transmitting pin output low level letter of microprocessor 103
Number when, laser driver 104 can receive low level smooth emissioning controling signal, now laser driver 104 control light hair
Emitter 101 is opened.During the light transmitting pin output high level signal of microprocessor 103, laser driver 104 can receive height
The light emissioning controling signal of level, the now control of laser driver 104 optical transmitting set 101 is closed.Similarly, microprocessor 103 can
Low and high level signal is exported with by light-receiving pin, laser driver 104 is controlled the open and close of hair receiver 102.
Further, with optical module 10 working time be incremented by, the temperature in optical module 10 can also be increased.And
Optical transmitting set 101 and optical receiver 102 in optical module 10 are temperature sensor.With the rising of temperature, optical transmitting set 101
Light emitting power be luminous power and can change therewith.The daylighting sensitivity of optical receiver 102 also can be with the rising of temperature
Change.In order to ensure the luminous power of optical transmitting set 101 in optical module 10 stability and the daylighting sensitivity of optical receiver 102 it is steady
Qualitative, microprocessor 103 is needed periodically according to temperature in optical module 10, and optical transmitting set 101 and optical receiver 102 are carried out
Associated temperature compensation.Now, microprocessor 103 need to generate compensating parameter, and compensating parameter is led to according to temperature in optical module 10
Transfer bus are crossed to send to laser driver 104.Laser driver 104 is received and stores compensating parameter, according to compensating parameter come
Adjust optical transmitting set 101 luminous power, and optical receiver 102 daylighting sensitivity.Because the temperature in optical module 10 is not
Change in real time, but need to just be changed after a period of time.Based on this, microprocessor 103 is without the ginseng of generation compensation in real time
Number, but periodically generation.
As the constantly improve of optical module function to existing optical module 10, it is necessary to carry out software upgrading, to realize optical mode
The increase of the New function of block 10 or the reparation of leak.And the upgrade method of traditional optical module is：Microprocessor 103 receives host computer
After the upgrade command of transmission, microprocessor 103 performs corresponding ROMPaq, and after the completion of upgrading, microprocessor 103 needs weight
It is new to start, and then perform the program after upgrading.In existing upgrade method, microprocessor 103 is after the completion of upgrading, it is necessary to weight
It is new to start.And during microprocessor 103 restarts, the level signal of all pins output can be in microprocessor 103
It is high level signal in a period of time, so, the relevant control that microprocessor 103 can be caused to be sent to laser driver 104 is believed
Number change, cause laser controller 104 normally to control optical transmitting set 101 and optical receiver 102 to work, and then cause
Optical module 10 cannot normal work, communication service appearance interruption.
During upgrading in optical module 10, update time is shorter, and the temperature change in optical module 10 is smaller, micro- place
Reason device 103 can be without updating the compensating parameter sent to laser driver 104.So, laser driver 104 can be with profit
The compensating parameter sent before upgrading with microprocessor 103 carries out the luminous power of optical transmitting set 101, and optical receiver 102 is adopted
The adjustment of luminous sensitivity.Therefore, in the escalation process of optical module 10, it is only necessary to which microprocessor 103 sends to laser driver 104
Associated control signal does not change, so that it may ensure in the escalation process of optical module 10, the control optical transmitting set of laser driver 104
101 and the normal work of optical receiver 102, such that it is able to avoid communication service from occurring interrupting.In embodiments of the present invention, in Wei Chu
When reason device is upgraded, the light of microprocessor can be launched the level state signal of pin and the level state signal of light-receiving pin
Got up by latches, in microprocessor escalation process, the light that will be latched by latch launches the level shape of pin
The level state signal of state signal and light-receiving pin is sent to laser driver, so during microprocessor is upgraded,
The associated control signal that laser driver is received does not change, such that it is able to control optical transmitting set 101 and optical receiver 102
Normal work, it is to avoid interrupting occurs in communication service.
As shown in Fig. 2 the embodiment of the invention provides a kind of optical module, the optical module includes：Microprocessor 201, lock
Storage 202, laser driver 203, optical transmitting set 204 and/or optical receiver 205.
Wherein, the latch controlling switch 2011 of microprocessor 201 is connected with the control end of latch 202, for latch
The control end of device 202 sends the control signal whether control latch latches.
The light transmitting pin 2012 and/or light-receiving pin 2013 of microprocessor 201 connect in the input of latch 202
Connect, for by light transmitting pin 2012 level state signal and/or light-receiving pin 2013 level state signal send to
The input of latch 202.
The output end of latch 202 is connected with the input of laser driver 203, for the control received according to control end
Signal processed, the level state signal of light transmitting pin 2012 and/or the electricity of light-receiving pin 2013 are sent to laser driver 203
Level state signal.
The output end of laser driver 203 is connected with optical transmitting set 204, and/or laser driver 203 output end and light
Receiver 205 is connected, and the level state signal and/or light-receiving that the light for being received according to its input launches pin 2012 draw
The level state signal of pin 2013, control optical transmitting set 204 and/or optical receiver 205 work.
It should be noted that including optical transmitting set 204 and/or optical receiver in optical module in embodiments of the present invention
205 refers to that optical transmitting set 204 and optical receiver 205 can be integrated in an optical module, now, light is included in optical module
Transmitter 204 and optical receiver 205.Certainly, optical transmitting set 204 and optical receiver 205 can be integrated in different optical modules,
Now, optical transmitting set 204 or optical receiver 205 are included in an optical module.Further, light hair is included in optical module
When emitter 204 and optical receiver 205, microprocessor 201 includes light transmitting pin 2011 and light-receiving pin 2012, and by light
The level state signal of the level state signal and light-receiving pin 2012 of launching pin 2011 is sent to the input of latch 202
End.Included in optical module during by optical transmitting set 204 or optical receiver 205, it is corresponding in microprocessor 201 to include light transmitting
Pin 2011 or light-receiving pin 2012, and the just electricity of the level state signal of transmitting pin 2011 or light-receiving pin 2012
Level state signal is sent to the input of latch 202.
Specifically, because latch 202 can be inputted end and receive when its control end receives latch signal
Signal latch, and will latch signal by output end export.In order to solve during optical module 10 is upgraded, microprocessor
Device 201 causes the problem that the control signal that laser driver 203 is received changes when restarting, in embodiments of the present invention
Optical module in be provided with latch 202, in the escalation process of microprocessor 201, latch 202 is by the light of microprocessor 201
Launch the level state signal of pin 2012 and/or the level state signal latch of light-receiving pin 2013.Now, latch
202 are arranged between microprocessor 201 and laser driver 203, as the control end of latch 202 and microprocessor 201
Controlling switch 2011 is latched to connect.Microprocessor 201 sends control by latching controlling switch 2011 to the control end of latch 202
The control signal whether lockmaking storage 202 latches.Light transmitting pin 2012 and/or the light-receiving pin 2013 of microprocessor 201
Input with latch 202 is connected, and so, microprocessor 201 can be by the level state letter of light transmitting pin 2012
Number and/or the level state signal of light-receiving pin 2013 send to the input of latch 202.The output end of latch 202
Input with laser driver 203 is connected.So, when latch 202 does not carry out signal latch, can be inputted
The level state signal of the light for receiving transmitting pin 2012 and/or the level state signal of light-receiving pin 2013 is held directly to pass through
Output end is sent to the input of laser driver 203.When latch 202 is latched, the light transmitting that can be latched
The level state signal of pin 2012 and/or the level state signal of light-receiving pin 2013 are sent to laser by output end and driven
The input of dynamic device 203.
When including optical transmitting set 204 and optical receiver 205 in optical module, the output end of laser driver 203 is sent out with light
Emitter 204 and optical receiver 205 are connected.So, the light transmitting that laser driver 203 can be received according to its input is drawn
The level state signal of pin or the level state signal of light-receiving pin, control optical transmitting set 204 and optical receiver 205 work.
Optical module includes microprocessor, latch, laser driver, optical transmitting set and/or optical receiver.Wherein, micro- place
The latch controlling switch for managing device is connected with the control end of the latch, for sending control lock to the control end of the latch
The control signal whether storage latches；Light transmitting pin and/or light-receiving pin and the latch of the microprocessor
Input connect, for by light transmitting pin level state signal and/or light-receiving pin level state signal send to
The input of the latch；The output end of the latch is connected with the input of the laser driver, for according to control
The control signal that system termination is received, level state signal and/or light-receiving that light launches pin are sent to the laser driver
The level state signal of pin；The output end of the laser driver is connected with the optical transmitting set, and/or the Laser Driven
The output end of device is connected with the optical receiver, and the light for being received according to its input launches the level state signal of pin
And/or the level state signal of light-receiving pin, control the optical transmitting set and/or optical receiver work.So,
During microprocessor is upgraded, continued to draw the level state signal and light-receiving that the light of latch launches pin by latch
The level state signal of pin is sent to laser driver, so, the control of optical transmitting set and optical receiver that laser driver is received
Signal processed does not change, so as in microprocessor escalation process, laser driver can normally control optical transmitting set and
Optical receiver is worked, and the optical transmitting set of laser driver reception and the correlation of optical receiver will not be made because microprocessor is upgraded
Control signal changes, and thereby may be ensured that the normal work of optical module, reduces communication service and the possibility interrupted occurs.
Further, microprocessor 201, specifically for when upgrade command is received, its latch controlling switch 2011 to
The control end of latch 202 sends and latches trigger signal.
Wherein, latch trigger signal and be indicated for the signal that the latch of latch 202 is received.
Latch 202, specifically for when its control end receives latch trigger signal, the light that input is received is launched
The level state signal of pin 2012 and/or the level state signal latch of light-receiving pin 2013, and continue the light that will be latched
The level state signal of the level state signal and/or light-receiving pin 2013 of launching pin 2012 is sent to laser driver
203。
That is, when microprocessor 201 receives upgrade command, microprocessor 201 needs to carry out upgrading processing, this
When, microprocessor 201 can send latch trigger signal by latching controlling switch 2011 to the control end of latch 202, with
Triggering latch 202 is latched to the signal that the input of latch 202 is received.Now, the input of latch 202 is received
To trigger signal is latched, the light that input is received launches the level state signal and/or light-receiving pin 2013 of pin 2012
Level state signal latch, and continue will latch signal by output end export, as sent to laser by output end
Driver 203.
Further, microprocessor 201, are additionally operable to when completion is upgraded, and it latches controlling switch 2011 to latch 202
Control end send latch shutdown signal, its light transmitting pin 2012 and/or light-receiving pin 2013 again to latch 202
Input sends the level state signal of light transmitting pin 2012 and/or the level state signal of light-receiving pin 2013.
Wherein, latch shutdown signal and be indicated for the signal that latch 202 will receive and be forwarded to laser driver 203
Signal.
Latch 202, is additionally operable to, when its control end receives latch shutdown signal, release and latch, and by input weight
The new level state signal of light transmitting pin 2012 for receiving and/or the level state signal of light-receiving pin 2013 are forwarded to sharp
CD-ROM driver 203.
That is, it is necessary to microprocessor 201 sends light to laser driver 203 after the completion of the upgrading of microprocessor 201
The associated control signal of transmitter 204 and optical receiver 205.Now, microprocessor 201 needs first to close the lock of latch 202
Function is deposited, microprocessor 201 sends to the control end of latch 202 and latches shutdown signal, closed so as to latch 202 and latch work(
Energy.Microprocessor 201 needs the level shape by the level state signal of optical transmitting set pin 2012 and/or light-receiving pin 2013
State signal is re-transmitted to latch 202.Now, the control end of latch 202 receives latch shutdown signal, latch 202
Close and latch, do not sent to laser driver 203 by the signal of latch as.Microprocessor 201 draws by latching control
Pin 2011 sends when latching shutdown signal to latch 202, also needs to launch pin 2012 and/or light-receiving pin 2013 by light
The level state signal of optical transmitting set pin 2012 and/or the electricity of light-receiving pin 2013 are sent to the input of latch 202
Level state signal.As, when latch shutdown signal is received, its input receives light to the control end of latch 202 simultaneously
The level state signal of transmitter pin 2012 and/or the level state signal of light-receiving pin 2013.Latch 202 is being released
During latch, the level state signal of optical transmitting set pin 2012 that will can receive simultaneously and/or light-receiving pin 2013
Level state signal is forwarded to laser driver 203 by output end.
So, in the escalation process of microprocessor 201, the light of microprocessor 201 can be sent out by latch 202
The level state signal of emitter pin 2012 and/or the level state signal latch of light-receiving pin 2013, and the light that will be latched
The level state signal of transmitter pin 2012 and/or the level state signal of light-receiving pin 2013 are sent to laser driver
203, after the completion of the upgrading of microprocessor 201, latch 202 can be released latch, and the just light transmitting of microprocessor 201
The level state signal of device pin 2012 and/or the level state signal of light-receiving pin 2013 are again through 202 turns of latch
It is sent to laser driver 203.That is, laser driver 203 is in the escalation process of microprocessor 201, reception to light
The level state signal of transmitter pin 2012 and/or the level state signal of light-receiving pin 2013 do not change, so as to micro-
During processor upgrade, laser driver can normally control optical transmitting set and optical receiver to work, will not be because of micro- place
Reason device is upgraded and the optical transmitting set of laser driver reception and the associated control signal of optical receiver is changed, such that it is able to
Ensure the normal work of optical module, reduce communication service and the possibility interrupted occur.
Further, microprocessor 201, if specifically for not receiving upgrade command, to the control of latch 202
End sends latches shutdown signal.
Latch 202, specifically for when its control end receives latch shutdown signal, the light that input is received is launched
The level state signal of pin 2012 and/or the level state signal of light-receiving pin 2013 are forwarded to laser driver 203.
That is, when microprocessor 201 does not receive upgrade command, latch 202 is without to input reception
Signal is latched, and now, microprocessor 201 can close the border letter by latching controlling switch 2011 to latch transmission latch
Number.When latch 202 receives latch shutdown signal, the signal that input is received is not latched, but directly will input
The signal for receiving is held to be exported by output end.As, latch 202 is inputted the level of the light transmitting pin 2012 that end receives
The level state signal of status signal and/or light-receiving pin 2013 is directly forwarded to laser driver 203 by output end.
Further, above-mentioned microprocessor 201 can be integrated in a controller with latch 202, can be independent
Device, the present invention it is without limitation.
Fig. 3 is a kind of flow chart of the signal processing method of the optical module according to an exemplary embodiment.The method
In can apply to the optical module shown in Fig. 2.As shown in figure 3, the signal processing method of optical module provided in an embodiment of the present invention
Comprise the following steps, it is specific as follows.
Step 301, microprocessor send the level state signal and/or light-receiving pin of light transmitting pin to latch
Level state signal.
Specifically, because latch is connected between microprocessor and laser driver, in microprocessor to Laser Driven
Device sends the related light emissioning controling signal of the open and close of control optical transmitting set, and the unlatching for sending control optical receiver
, it is necessary to first send above-mentioned smooth emissioning controling signal and light-receiving control signal during to the related light-receiving control signal closed
To latch, as, microprocessor sends the level state signal of light transmitting pin and the level of light-receiving pin to latch
Status signal.Latch is receiving the level state signal and the electricity of light-receiving pin of the light transmitting pin of microprocessor transmission
After level state signal, when latch shutdown signal is received, when as microprocessor is not upgraded, light can be launched the electricity of pin
The level state signal of level state signal and light-receiving pin is forwarded directly to laser driver, with cause laser driver according to
The level state signal of light transmitting pin and the level state signal control optical transmitting set of light-receiving pin and optical receiver work.
If step 302, receiving upgrade command, microprocessor sends to latch and latches trigger signal, to cause
The level state signal and/or the level state signal latch of light-receiving pin of the light transmitting pin that latch will be received, and
In microprocessor escalation process, the light for continuing to latch launches the level state signal of pin and/or the level of light-receiving pin
Status signal is sent to laser driver, so that laser driver connects according to the level state signal and/or light that light launches pin
The level state signal control optical transmitting set of spasm pin and/or optical receiver work.
Wherein, the signal that trigger signal is used to indicate latches to receive is latched.
If specifically, receiving the upgrade command of host computer transmission, microprocessor needs to be upgraded accordingly, by
In needing to restart microprocessor after upgrading, in order to ensure that laser driver control light will not be sent out after microprocessor is restarted
Emitter and optical receiver work produce influence, and microprocessor can send to latch and latch trigger signal, and triggering latch will
The signal latch of reception, so, after latch receives latch trigger signal, can be microprocessor by the signal of reception
The level state signal of light transmitting pin and/or the level state signal latch of light-receiving pin of device get up, and in latch
Afterwards, the level state signal and/or light of the light transmitting pin of the microprocessor that will be latched are continued in microprocessor escalation process
The level state signal for receiving pin is sent to laser driver.
It should be noted that latch is divided into control end, input, and output end.Microprocessor sends to latch
Trigger signal is latched, as microprocessor sends to the control end of latch and latches trigger signal.Latching trigger signal is used to refer to
Show the signal that latches are received, refer to latch the signal that trigger signal is used to indicate latches input to receive.
Further, it can be high level signal to latch trigger signal.Sent to the control end of latch in microprocessor
During high level signal, latch is known needs the signal received to its input to latch, then be inputted the micro- of end reception
The signal latch that processor sends gets up, and the signal of latch is sent to laser driver.Locked when microprocessor is not upgraded
Without being latched to the signal for receiving, microprocessor can send low level signal to storage to the control end of latch, now
Latch knows that the signal that can be inputted end reception is forwarded directly to Laser Driven without being latched to the signal for receiving
Device.
It should be noted that microprocessor is in escalation process, can be by the weak pull-up interlock circuit of microprocessor
The control end of latch sends high level signal, and so, it is ensured that when microprocessor is restarted, the control end of latch can
High level signal is directly received with one, and then the signal of latch is sent to laser driver.
It should be noted that the weak pull-up interlock circuit of microprocessor can be continued as in microprocessor restarting process
Miscellaneous part provides the circuit of high level signal.
Step 303, microprocessor carry out upgrading processing according to upgrade command.
Specifically, after microprocessor receives upgrade command, knowing that needs are upgraded.Now, microprocessor can be right
Firmware in it carries out upgrading processing.
So, during microprocessor is upgraded, the level of the light transmitting pin for continuing to latch by latch
The level state signal of status signal and/or light-receiving pin is sent to laser driver, so, the light that laser driver is received
The control signal of transmitter and/or optical receiver does not change, so as in microprocessor escalation process, laser driver can
Normally to control optical transmitting set and/or optical receiver to work, will not receive laser driver because microprocessor is upgraded
Optical transmitting set and/or the associated control signal of optical receiver change, thereby may be ensured that the normal work of optical module, drop
There is the possibility interrupted in low pass communication service.
Fig. 4 is the flow chart of the signal processing method of another optical module according to an exemplary embodiment.The party
Method can apply in the optical module shown in Fig. 2.As shown in figure 4, the signal transacting side of optical module provided in an embodiment of the present invention
Method is comprised the following steps, specific as follows.
Step 401, the level state signal of the light transmitting pin of latch reception microprocessor and/or light-receiving pin
Level state signal.
Specifically, because latch is arranged between microprocessor and laser driver, microprocessor is needed by latching
Device sends to laser driver the level state signal of the level state signal of light transmitting pin and/or light-receiving pin.Cause
This, microprocessor draws the associated control signal for controlling optical transmitting set to open and close, the light transmitting of as microprocessor
The level state signal of pin is sent to latch.And/or by the associated control signal for controlling optical receiver to open and close,
The level state signal of the as light-receiving pin of microprocessor is sent to latch.Latch receives the light transmitting of microprocessor
The level state signal of pin and/or the level state signal of light-receiving pin.
If step 402, the latch trigger signal for receiving microprocessor transmission, latch draws the light transmitting of reception
The level state signal of pin and/or the level state signal latch of light-receiving pin；And in microprocessor escalation process, continue
The level state signal of the light of latch is launched into pin level state signal and/or light-receiving pin is sent to Laser Driven
Device, to cause that laser driver launches the level state signal of pin and/or the level state signal of light-receiving pin according to light
Control optical transmitting set and/or optical receiver work.
Wherein, the signal that trigger signal is used to indicate latches to receive is latched.
Specifically, when microprocessor needs to be upgraded, in order to ensure that laser will not be driven after microprocessor is restarted
Dynamic device control optical transmitting set and/or optical receiver work produce influence, can be sent to latch and latch trigger signal, latch
After receiving latch trigger signal, illustrate that microprocessor needs to be upgraded, the light of the microprocessor that latch will can be received
Launch the level state signal of pin and/or the level state signal latch of light-receiving pin, in the process of microprocessor upgrading
In, the level state signal and/or the level state letter of light-receiving pin of the light transmitting pin of the microprocessor that will can be latched
Number send to laser driver.So, laser driver can launch the electricity of pin according to the light of the microprocessor for receiving
The level state signal control optical transmitting set of level state signal and/or light-receiving pin and/or the work of optical receiver.
It should be noted that before microprocessor upgrading, the light of the microprocessor that latch will be received launches the electricity of pin
The level state signal of level state signal and/or light-receiving pin is directly forwarded to laser driver.And in microprocessor upgrading
During, the level state signal and/or the level state letter of light-receiving pin of the light transmitting pin of the microprocessor that will be received
Number directly latch, and the light transmitting pin of the microprocessor that will be latched level state signal and/or the level of light-receiving pin
Status signal is sent to laser driver.Laser driver microprocessor upgrading before and escalation process in, the micro- place for receiving
The level state signal of light transmitting pin and/or the level state signal of light-receiving pin for managing device do not change, so that can
To ensure in microprocessor escalation process, laser driver can normally control optical transmitting set and optical receiver to work, no
Become because microprocessor is upgraded the optical transmitting set of laser driver reception and/or the control signal of optical receiver
Change.
So, latch receive microprocessor transmission latch trigger signal after, can will receive micro- place
The level state signal and/or the level state signal latch of light-receiving pin of the light transmitting pin of device are managed, and in microprocessor
During upgrading, the level state signal and/or the electricity of light-receiving pin of the light transmitting pin for continuing to latch by latch
Level state signal is sent to laser driver, so, the control signal and/or light-receiving of the optical transmitting set that laser driver is received
The control signal of device does not change, such that it is able in microprocessor escalation process, laser driver can be controlled normally
Optical transmitting set and/or optical receiver are worked, and the optical transmitting set of laser driver reception will not be made because microprocessor is upgraded
The control signal of control signal and/or optical receiver changes, and thereby may be ensured that the normal work of optical module, reduces communication
There is the possibility interrupted in business.
As shown in figure 5, a kind of signal processing method of optical module is the embodiment of the invention provides, including：
Step 501, microprocessor send the level state signal and/or light-receiving pin of light transmitting pin to latch
Level state signal.Latch receives the level state signal and/or the electricity of light-receiving pin of the light transmitting pin of microprocessor
Level state signal.
Specifically, referring to step 301 and step 401, will not be repeated here.
If step 502, not receiving upgrade command, microprocessor sends to latch and latches shutdown signal, latches
Device receive microprocessor send latch shutdown signal, and will receive microprocessor light launch pin level state signal
And/or the level state signal of light-receiving pin is forwarded to laser driver, to cause that laser driver launches pin according to light
Level state signal and/or light-receiving pin level state signal control optical transmitting set and/or optical receiver work.
Wherein, it is that microprocessor sends when not upgrading to latch shutdown signal, for the letter for indicating latch to receive
Number it is forwarded to laser driver.
Specifically, microprocessor is before upgrade command is received, when as not receiving upgrade command, microprocessor can
Corresponding control signal is provided with for laser driver, latch need not open latch function, and now, microprocessor can be to lock
The control end of storage sends and latches shutdown signal, when now the control end of latch receives latch shutdown signal, closes and latches
Function, the level state signal and/or the electricity of light-receiving pin of the light transmitting pin of the microprocessor that above-mentioned steps 501 are received
Level state signal is forwarded to laser driver.
Explanation is needed, latch includes control end, input and output end.Wherein, latch receives microprocessor
The level state signal of light transmitting pin and/or the level state signal of light-receiving pin are that the input of latch receives micro- place
Manage the level state signal and/or the level state signal of light-receiving pin of the light transmitting pin of device.Latch is received to latch and closed
Close the control end that signal is latch and receive latch shutdown signal.Now, it refers to that latch is inputted end to latch shutdown signal
The signal of reception is forwarded to laser driver.
If step 503, receiving upgrade command, microprocessor sends to latch and latches trigger signal.Latch
When the latch trigger signal of microprocessor transmission is received, the light that will be received launches the level state signal and/or light of pin
Receive the level state signal latch of pin；And in microprocessor escalation process, the lasting light that will be latched launches the electricity of pin
The level state signal of level state signal and/or light-receiving pin is sent to laser driver, with cause laser driver according to
The level state signal of the light transmitting pin and/or level state signal control optical transmitting set and/or the light of light-receiving pin
Receiver operation.
Specifically, referring to step 302 and step 402, will not be repeated here.
Step 504, microprocessor carry out upgrading processing according to upgrade command.
Specifically, referring to step 303, will not be repeated here.
When step 505, upgrading are completed, microprocessor sends the level for latching shutdown signal and light transmitting pin to latch
The level state signal of status signal and/or light-receiving pin, is latched with causing that latch is released, and the light hair that will be received again
The level state signal of the level state signal and/or light-receiving pin of penetrating pin is forwarded to laser driver.In microprocessor
When upgrading is completed, latch is released and latched, and receive micro- place again when the latch shutdown signal of microprocessor transmission is received
Manage the level state signal and/or the level state signal of light-receiving pin of the light transmitting pin of device.
Specifically, after the completion of microprocessor upgrading, the level state of its each pin output recovers the electricity to upgrading
Level state, now, microprocessor can be sent to the control end of latch and latch shutdown signal, and the control end of latch is received
After latching shutdown signal, latch function can be closed to be to release and latched.Microprocessor after the completion of upgrading, to latch
Control end send and latch shutdown signal after, the light of microprocessor transmitting pin and/or light-receiving pin can be to latch
Input sends corresponding level state signal, and the input of latch can receive the light transmitting pin of microprocessor transmission
The level state signal of level state signal and/or light-receiving pin.
The level state signal and/or light of the light transmitting pin of the microprocessor that step 506, latch will be received again connect
The level state signal of spasm pin is forwarded to laser driver.
Specifically, latch connects in the level state signal and/or light that the light for receiving microprocessor again launches pin
After the level state signal of spasm pin, because the signal that its control end is received is latch shutdown signal, its latch function is turned off,
The level state signal and/or the level state of light-receiving pin of the light transmitting pin of the microprocessor that latch will can be received
Signal is forwarded to laser driver.
The light of the as microprocessor that latch be able to will be received by the output end of latch launches the level shape of pin
The level state signal output of state signal and/or light-receiving pin is to laser driver.Now, laser driver can receive micro-
The level state signal and/or the level state signal of light-receiving pin of the light transmitting pin of processor, and according to above-mentioned signal
Control optical transmitting set and optical receiver work.
So, microprocessor can send to latch after upgrade command is received and latch trigger signal, latch
After the latch trigger signal for receiving microprocessor transmission, the light of the microprocessor that will can be received launches the level of pin to device
The level state signal latch of status signal and/or light-receiving pin, and during microprocessor is upgraded, held by latch
The continuous light by latch launches the level state signal of pin and/or the level state signal of light-receiving pin is sent to Laser Driven
Device, so, the optical transmitting set and/or the control signal of optical receiver that laser driver is received do not change, such that it is able to
In microprocessor escalation process, laser driver can normally control optical transmitting set and/or optical receiver to work, will not be because of
Microprocessor is upgraded and the optical transmitting set of laser driver reception and/or the control signal of optical receiver is changed, so that
The normal work of optical module can be ensured, communication service is reduced and the possibility interrupted occurred.
Those skilled in the art considering specification and practice here after disclosure of the invention, will readily occur to it is of the invention its
Its embodiment.The application is intended to any modification of the invention, purposes or adaptations, these modifications, purposes or
Person's adaptations follow general principle of the invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture being described above and be shown in the drawings, and
And can without departing from the scope carry out various modifications and changes.The scope of the present invention is only limited by appended claim.
Claims (8)
1. a kind of optical module, it is characterised in that connect including microprocessor, latch, laser driver, optical transmitting set and/or light
Receive device；Wherein,
The latch controlling switch of the microprocessor is connected with the control end of the latch, for the control to the latch
End sends the control signal whether control latch latches；
The light transmitting pin and/or light-receiving pin of the microprocessor are connected with the input of the latch, for by light
The level state signal of the level state signal and/or light-receiving pin of launching pin is sent to the input of the latch；
The output end of the latch is connected with the input of the laser driver, for the control received according to control end
Signal, the level state of the level state signal from light transmitting pin to the laser driver and/or light-receiving pin that send is believed
Number；
The output end of the laser driver is connected with the optical transmitting set, and/or the laser driver output end and institute
Optical receiver connection is stated, the light for being received according to its input launches the level state signal and/or light-receiving pin of pin
Level state signal, control the optical transmitting set and/or the optical receiver work.
2. optical module according to claim 1, it is characterised in that
The microprocessor, specifically for when upgrade command is received, it latches control of the controlling switch to the latch
End sends latches trigger signal；The latch trigger signal is indicated for the signal that the latches are received；
The latch, specifically for when its control end receives latch trigger signal, the light that input is received is sent out
The level state signal of pin and/or the level state signal latch of the light-receiving pin are penetrated, and continues the light hair that will be latched
The level state signal of the level state signal and/or light-receiving pin of penetrating pin is sent to the laser driver.
3. optical module according to claim 2, it is characterised in that
The microprocessor, is additionally operable to when completion is upgraded, and it latches controlling switch and is closed to the control end transmission latch of latch
Signal is closed, its light transmitting pin and/or light-receiving pin send the level shape that light launches pin to the input of latch again
The level state signal of state signal and/or light-receiving pin；The latch shutdown signal is indicated for the latch will be connect
The signal for receiving is forwarded to the signal of the laser driver；
The latch, is additionally operable to, when its control end receives latch shutdown signal, release and latch, and input is connect again
The level state signal of light transmitting pin and/or the level state signal of light-receiving pin received are forwarded to the laser and drive
Dynamic device.
4. optical module according to claim 1, it is characterised in that
The microprocessor, if specifically for not receiving upgrade command, sent to the control end of the latch and latched
Shutdown signal；
The latch, specifically for when its control end receives latch shutdown signal, the light that input is received is sent out
The level state signal of the level state signal and/or light-receiving pin of penetrating pin is forwarded to laser driver.
5. a kind of signal processing method of optical module, it is characterised in that be applied to the optical mode described in claim any one of 1-4
Block, methods described includes：
The level state of level state signal from light transmitting pin to latch and/or light-receiving pin that microprocessor sends is believed
Number；
If receiving upgrade command, the microprocessor sends to the latch and latches trigger signal, described to cause
The level state signal and/or the level state signal latch of light-receiving pin of the light transmitting pin that latch will be received,
And in the microprocessor escalation process, the level state signal and/or light of the lasting light transmitting pin that will be latched connect
The level state signal of spasm pin is sent to the laser driver, so that the laser driver launches pin according to the light
Level state signal and/or light-receiving pin level state signal control the optical transmitting set and/or the optical receiver
Work；It is described to latch the signal that trigger signal is used to indicate the latches to receive；
The microprocessor carries out upgrading processing according to the upgrade command.
6. method according to claim 5, it is characterised in that also include：
When upgrading is completed, the microprocessor sends the level state signal for latching shutdown signal and light transmitting pin to latch
And/or the level state signal of light-receiving pin, latched with causing that the latch is released, and the light hair that will be received again
The level state signal of the level state signal and/or light-receiving pin of penetrating pin is forwarded to the laser driver；The lock
Deposit signal of the shutdown signal for indicating the latch to receive and be forwarded to the laser driver.
7. a kind of signal processing method of optical module, it is characterised in that be applied to optical module described in claim any one of 1-4；
Methods described includes：
Latch receives the level state signal and/or the level state letter of light-receiving pin of the light transmitting pin of microprocessor
Number；
If receiving the latch trigger signal that the microprocessor sends, the light transmitting that the latch will be received is drawn
The level state signal of pin and/or the level state signal latch of light-receiving pin；And in the microprocessor escalation process,
Continue will latch the light transmitting pin level state signal and/or light-receiving pin level state signal send to swash
CD-ROM driver, to cause that the laser driver launches the level state signal and/or light-receiving pin of pin according to the light
Level state signal control the optical transmitting set and/or the optical receiver work；The latch trigger signal is used to indicate
The signal that the latches are received.
8. method according to claim 7, it is characterised in that also include：
It is described if receiving the latch shutdown signal that the microprocessor sends when the microprocessor upgrades completion
Latch release latch, and receive again the microprocessor light transmitting pin level state signal and/or light-receiving draw
The level state signal of pin；The signal that shutdown signal is latched for indicating the latch to receive is forwarded to described sharp
CD-ROM driver；
The level state signal and/or light-receiving of the light transmitting pin of the microprocessor that the latch will be received again draw
The level state signal of pin is forwarded to the laser driver.
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Cited By (1)
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| CN110568804A (en) * | 2019-10-11 | 2019-12-13 | 深圳市道通智能航空技术有限公司 | microprocessor pin expansion circuit, battery equalization control circuit and unmanned aerial vehicle |
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