CN110162430A - A kind of temperature self-adaptation method, device and equipment - Google Patents

A kind of temperature self-adaptation method, device and equipment Download PDF

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Publication number
CN110162430A
CN110162430A CN201810150443.7A CN201810150443A CN110162430A CN 110162430 A CN110162430 A CN 110162430A CN 201810150443 A CN201810150443 A CN 201810150443A CN 110162430 A CN110162430 A CN 110162430A
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temperature
interface
external temperature
interface external
time
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CN110162430B (en
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陈锐
唐甜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2002—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where interconnections or communication control functionality are redundant
    • G06F11/2007—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where interconnections or communication control functionality are redundant using redundant communication media
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2038—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant with a single idle spare processing component

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  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

This application provides a kind of temperature self-adaptation method, device and equipments.The method is that alternate channel is arranged in the data transmission channel of chip interface, when interface external temperature changes, according to the trend of interface exterior temperature change, when temperature is not up to zero point, adaptation parameter is configured by alternate channel in advance, the adaptation parameter can adapt to reach the interface external temperature after zero point, when interface external temperature reaches zero point, data transmission channel is switched to its alternate channel, to realize the temperature self-adaptation of chip interface, interface is enable to meet performance requirement in wide temperature range.

Description

A kind of temperature self-adaptation method, device and equipment
Technical field
This application involves field of communication technology more particularly to a kind of temperature self-adaptation method, device and equipments.
Background technique
Chip includes interface & processor.Interface is used to send and receive signal, including sendaisle and receiving channel.Place Manage device such as central processing unit (Central Processing Unit, CPU), micro-control unit (Microcontroller Unit, MCU) or microprocessing unit (Micro Control Unit, MPU) etc., it is connected with interface, for carrying out pipe to interface Reason and control.The performance of interface can be influenced by interface external temperature, and especially for the high-speed interface of chip, temperature is to performance Influence it is particularly evident.In order to solve the problems, such as chip interface temperature self-adaptation, interface is enable to keep stable at different temperatures Good performance, there are mainly two types of methods at present:
One is increasing temperature-compensation circuit, the characteristic varied with temperature using elements such as diode and triodes for interface Carry out design compensation circuit, reduces the influence of temperature interface circuit.But the temperature-compensation circuit of pure hardware, Acclimation temperature range It is small, and complex circuit designs, device selection are difficult to unification, are unable to satisfy the requirement of chip interface consistency of performance, chip is good Rate is not high, and application range is limited.
The second is first test interface, to interface setting temperature section (such as low-temperature zone, the room temperature section of setting And high temperature section) parameter of adaptation counted, the adaptation parameter set for corresponding to different temperatures segmentation is obtained, then obtain each suitable Intersection with parameter sets, by the adaptation parameter in intersection as the fixed configurations parameter of interface, so that interface be made to can adapt to Various temperature.This mode is likely to the case where cannot get the intersection occur independent of hardware, and practical progress The chip sample quantity of test is generally few, and chip discreteness is big, that is, allows to obtain the intersection, the parameter in the intersection Also all chips can be not necessarily matched, still result in that high fraction defective, chip interface temperature self-adaptation be poor, chip interface The problem that energy consistency is poor and application range is limited.
Summary of the invention
This application provides a kind of temperature self-adaptation method, device and equipments, to improve the temperature self-adaptation of chip interface The consistency of property and performance.
In a first aspect, the application provides a kind of temperature self-adaptation method, which comprises if interface external temperature is upper The trend of liter is transmitted preliminary data logical when the interface external temperature is not up to the first zero point of the ascendant trend The parameter configuration in road is the first adaptation parameter, when the interface external temperature reaches first zero point, by interface Data transmission channel switches to the preliminary data transmission channel；If the interface external temperature is downward trend, connect when described Mouthful external temperature is not up to the second temperature critical point of the downward trend, is the by the parameter configuration of preliminary data transmission channel Two adaptation parameters；When the interface external temperature reaches the second temperature critical point, by the data transmission channel switching of interface To the preliminary data transmission channel.
The method is that alternate channel, i.e. preliminary data transmission channel is arranged in the data transmission channel of interface, outside interface When portion's temperature changes, according to the trend of interface exterior temperature change, temperature changing trend is not up in interface external temperature Zero point when, configure adaptation parameter for alternate channel in advance, which is adapted to interface external temperature and reaches Data transmission channel is switched to spare number when interface external temperature reaches zero point by the temperature after zero point According to transmission channel, since the adaptation parameter of preliminary data transmission channel configuration is adaptable to current interface external temperature, thus Interface can keep moderately good performance under current interface external temperature, realize chip interface to the adaptive of temperature, from And the ability of interface reply temperature change is improved, so that interface is met performance requirement in wide temperature range, and due to The method is carried out in a manner of software adjusting parameter and control switching, and the difference of hardware between chip is not only restricted to, thus The consistency of chip yield and chip interface performance can also be improved.
Wherein, the data transmission channel can be the sendaisle and/or receiving channel of interface.To sendaisle and connect It receives channel and alternate channel is all set, to carry out adaptation parameter configuration and channel switching, compared to only to sendaisle or receiving channel Alternate channel is set, the temperature self-adaptation ability of interface can be preferably improved.
In one possible implementation, the method further include: obtain interface external temperature, calculating is adjacent twice In obtained interface external temperature, the interface external temperature once obtained afterwards subtracts the preceding interface external temperature once obtained Difference；If the difference being calculated continuous k times is positive number, the interface external temperature is ascendant trend；If calculating The difference arrived continuous t times is negative, then the interface external temperature is downward trend；Wherein k and t be it is preset just Integer.It is possible thereby to determine the variation tendency of interface external temperature.
Wherein, if the interface external temperature be ascendant trend, first zero point be greater than current interface outside Portion's temperature, and be the preset zero point in multiple zero points closest to the current interface external temperature；If institute Stating interface external temperature is downward trend, and it and is multiple temperature that the second temperature critical point, which is less than current interface external temperature, Spend the preset zero point in critical point closest to the current interface external temperature.When there is multiple zero points, It is possible thereby to it is determined that carry out the zero point of channel switching.
Wherein, mutual backup channel between the data transmission channel and its preliminary data transmission channel, does not work currently Data transmission channel be work in data transmission channel alternate channel.Data transmission channel and standby transport channel channel Structure can be identical, data transmission channel and preliminary data transmission channel may be that structure is different but input and output complete one The channel of cause.Specifically, data transmission channel can be sendaisle and/or alternate channel, then sendaisle and spare transmission Channel mutual backup channel, receiving channel and its spare receiving channel mutual backup channel.The structure of spare sendaisle can be with Identical with sendaisle, spare sendaisle may be that structure is different with sendaisle but input and output and sendaisle are complete Consistent channel；The structure of spare receiving channel can be identical with receiving channel, and spare receiving channel may be structure and connect Receive channel different but input and output and the completely the same channel of receiving channel.
Wherein, the first adaptation parameter and the second adaptation parameter and the first zero point and second temperature critical point are pre- Chip sample is first passed through to test to obtain and save.First adaptation parameter becomes with first zero point and described rise Gesture is corresponding, and second adaptation parameter is corresponding with the second temperature critical point and the downward trend.It can protect in advance The corresponding table of each adaptation parameter with each zero point and interface exterior temperature change trend (rising or falling) is deposited, then Corresponding adaptation parameter is determined according to the zero point of interface exterior temperature change trend and temperature changing trend.If right in advance Interface external temperature is segmented, and each temperature section corresponds to one or more groups of adaptation parameters, then can be according to temperature outside interface The variation tendency (rising or falling) and current interface external temperature of degree determine the first adaptation parameter or the second adaptation parameter, also It is the temperature section that will be reached by the variation tendency and the determination of current interface external temperature of interface external temperature, chooses the temperature The corresponding adaptation parameter of section is the first adaptation parameter or the second adaptation parameter.If each temperature section corresponds to multiple groups adaptation parameter, One group can therefrom be randomly selected to configure.
In one possible implementation, data transmission channel is the receiving channel of interface, the preliminary data transmission Channel is the alternate channel of the receiving channel, and the method can also include: to detect the data transmission channel or spare number It is rear primary acquired in the amplitude for calculating adjacent signal obtained twice according to the amplitude of signal received by transmission channel Amplitude subtract before primary obtained amplitude difference,；If the difference is greater than or equal to 0, time counting is cumulative, until institute When stating difference less than 0, time count halted；If when time count halted, time count value is less than preset first threshold value, after The continuous time counting that carries out is cumulative, until when the difference is less than 0, time count halted；If when time count halted, time counting Value is greater than or equal to first threshold value, records the time count value, and the time count value is the rising of the signal The maximum amplitude of detected signal along the sum of time and peak holding time, and record time counting cumulative process, And time counting is reset；If the difference is less than or equal to 0, time counting is cumulative, until stopping when the difference is greater than 0 Time counting；If when time count halted, time count value is less than preset second threshold value, it is tired to continue time counting Add, until when the difference is greater than 0, time count halted；If when time count halted, time count value is greater than or equal to described Second threshold value, records the time count value, and the time count value is that the failing edge time of the signal and minimum value are protected It holds the sum of time, and the minimum amplitude of signal detected in record time counting cumulative process, and time counting is clear Zero.
Wherein, the initial value of time counting is 0.First threshold value and the second threshold value can be according to chip interface route speed The various factors such as the length of plate and cabling that rate, chip use emulate to obtain.
The implementation can be received the peak value and minimum value of signal, and obtained time count value is to receive signal Rising time (upstroke slope time) and the sum of peak holding time or failing edge time (descending grade time) and minimum It is worth the sum of retention time, should and be worth the peak holding time or minimum value retention time of i.e. original burst signal, just can in this way Peak value, minimum value and the peak holding time and minimum value retention time for restoring original burst signal, thus accurate reproduction Pulse signal.Also, since the signal reduction method is for letter received by the interface that have passed through temperature self-adaptation processing Number carry out, therefore restore accuracy it is higher.
Second aspect, the application provide a kind of temperature self-adaptation device, and described device includes: configuration unit, if for connecing Mouthful external temperature is ascendant trend, will when the interface external temperature is not up to the first zero point of the ascendant trend The parameter configuration of preliminary data transmission channel is the first adaptation parameter；Switch unit, if being to rise for interface external temperature Gesture switches to the data transmission channel of interface described standby when the interface external temperature reaches first zero point Use data transmission channel；The configuration unit is also used to, if the interface external temperature is downward trend, outside the interface Temperature is not up to the second temperature critical point of the downward trend, and the parameter configuration of preliminary data transmission channel is fitted for second With parameter；The switch unit, if being also used to the interface external temperature is downward trend, when the interface external temperature reaches The data transmission channel of interface is switched to the preliminary data transmission channel by the second temperature critical point.
Chip interface temperature self-adaptation device provided by the present application, when interface external temperature changes, according to interface The trend of exterior temperature change in advance will before interface exterior temperature change reaches the zero point of temperature changing trend Preliminary data transmission channel is configured to adaptation parameter, which is adapted to after interface external temperature reaches zero point It is logical to be switched to preliminary data transmission when interface external temperature reaches zero point by temperature for the data transmission channel of interface Road, since the adaptation parameter of preliminary data transmission channel channel configuration is adapted to current interface external temperature, thus interface can Moderately good performance is kept under current interface external temperature, is improved the ability of interface reply temperature change, is enable interface Meet performance requirement in wide temperature range, and be not only restricted to the difference of hardware between chip, to improve chip yield With the consistency of chip interface performance.
Wherein, the data transmission channel can be the sendaisle and/or receiving channel of interface.To sendaisle and connect It receives channel and alternate channel is all set, to carry out adaptation parameter configuration and channel switching, compared to only to sendaisle or receiving channel Alternate channel is set, the temperature self-adaptation ability of interface can be preferably improved.
In one possible implementation, the device, further includes: temperature acquiring unit, for obtaining outside interface Portion's temperature；Computing unit, it is rear primary for calculating in the adjacent obtained interface external temperature of the temperature acquiring unit described twice The difference for the interface external temperature that obtained interface external temperature once obtains before subtracting；Trend determination unit, based on determining Whether the obtained difference continuous k times be positive number, if so, the interface external temperature is ascendant trend；And it is used for Determine that the difference whether continuous t times be calculated is negative, if so, the interface external temperature is downward trend；Its Middle k and t is preset positive integer.
Wherein, if there is multiple zero points, if the interface external temperature is ascendant trend, first temperature threshold Point is greater than current interface external temperature, and closest to the preset zero point of the current interface external temperature；If institute Stating interface external temperature is downward trend, and the second temperature critical point is less than current interface external temperature, and closest to institute State the preset zero point of current interface external temperature.
Wherein, the first adaptation parameter and the second adaptation parameter and the first zero point and second temperature critical point are pre- Chip sample is first passed through to test to obtain and save.First adaptation parameter and first zero point and the ascendant trend phase Corresponding, the second adaptation parameter is corresponding with the second temperature critical point and the downward trend.It can pre-save each suitable Corresponding table with parameter with each zero point and interface exterior temperature change trend (rising or falling), then according to interface Exterior temperature change trend and zero point determine corresponding adaptation parameter.If having been carried out point to interface external temperature in advance Section, each temperature section correspond to one or more groups of adaptation parameters, then can according to the variation tendency of interface external temperature (rising or under Drop) and current interface external temperature determine the first adaptation parameter and the second adaptation parameter, that is, pass through interface external temperature The temperature section that variation tendency and the determination of current interface external temperature will reach, choosing the corresponding adaptation parameter of the temperature section is the One adaptation parameter or the second adaptation parameter.If each temperature section corresponds to multiple groups adaptation parameter, one group can be therefrom randomly selected To configure.
In one possible implementation, the data transmission channel is the receiving channel of interface, the preliminary data Transmission channel is the alternate channel of the receiving channel, and described device can also include: amplitude detection unit, described for detecting The amplitude of signal received by data transmission channel or the preliminary data transmission channel；Computing unit is adjacent for calculating Twice in the amplitude of obtained signal, the difference of primary obtained amplitude before rear primary obtained amplitude subtracts；Rise Stage of reduction unit, is used for: if the difference is greater than or equal to 0, time counting is cumulative, until stopping when the difference is less than 0 Time counting；If when time count halted, time count value is less than preset first threshold value, it is tired to continue time counting Add, until when the difference is less than 0, time count halted；If when time count halted, time count value is greater than or equal to described First threshold value, records the time count value, and the time count value is the rising time and peak holding of the signal The maximum amplitude of detected signal in the sum of time, and record time counting cumulative process, and time counting is reset； Decline stage reduction unit, is used for: if the difference is less than or equal to 0, time counting is cumulative, until when the difference is greater than 0, Time count halted；If when time count halted, time count value is less than preset second threshold value, continue time counting It is cumulative, until when the difference is greater than 0, time count halted；If when time count halted, time count value is greater than or equal to institute The second threshold value is stated, the time count value is recorded, the time count value is failing edge time and the minimum value of the signal The minimum amplitude of detected signal in the sum of retention time, and record time counting cumulative process, and by time counting It resets；Wherein, the initial value of time counting is 0.
In the implementation, the peak value i.e. peak of original burst signal for the reception signal that ascent stage reduction unit is recorded Value, obtained time count value are to receive the sum of rising time (upstroke slope time) and peak holding time of signal, That is the peak holding time of original burst signal.The minimum value i.e. original pulse for the reception signal that decline reduction unit is recorded is believed Number minimum value, the time count value recorded is the sum of failing edge time (descending grade time) and minimum value retention time, The minimum value retention time of original burst signal, thus the device can restore the peak value of original burst signal, minimum value and Peak holding time and minimum value retention time, thus accurate reproduction pulse signal.Also, since be based on can be into for described device Signal received by the adaptive interface of trip temperature is restored, therefore it is higher to restore accuracy.
The third aspect, the application provide a kind of chip, and the chip includes processor and interface, the processor and described Interface is connected, and the interface includes data transmission channel and preliminary data transmission channel.The processor is used for: if interface External temperature is ascendant trend, will be standby when the interface external temperature is not up to the first zero point of the ascendant trend Parameter configuration with the alternate channel of data transmission channel is the first adaptation parameter；When the interface external temperature reaches described The data transmission channel of interface is switched to the preliminary data transmission channel by one zero point；If temperature outside the interface Degree is downward trend, when the interface external temperature is not up to the second temperature critical point of the downward trend, by preliminary data The parameter configuration of transmission channel is the second adaptation parameter；If it is critical that the interface external temperature reaches the second temperature The data transmission channel of interface is switched to the preliminary data transmission channel by point.
The chip is when interface external temperature changes, according to the trend of interface exterior temperature change, outside interface Before portion's temperature change reaches the zero point of temperature changing trend, adaptation ginseng is configured by preliminary data transmission channel in advance Number, which is adapted to interface external temperature and reaches the temperature after zero point, when interface external temperature reaches temperature When critical point, data transmission channel is switched to preliminary data transmission channel, due to the adaptation of preliminary data transmission channel configuration Parameter adaptation is in current interface external temperature, thus the interface of chip has good temperature self-adaptation, and interface copes with temperature The ability of variation is strong, performance requirement can be met in wide temperature range, and chip yield is high, chip interface performance has Consistency.
In one possible implementation, the processor also particularly useful for: obtain interface external temperature, calculate it is adjacent Twice in obtained interface external temperature, temperature outside the interface that the interface external temperature once obtained afterwards once obtains before subtracting The difference of degree；If the difference being calculated continuous k times is positive number, the interface external temperature is ascendant trend；If meter The obtained difference continuous t times is negative, then the interface external temperature is downward trend；Wherein k and t is to preset Positive integer.
Wherein, if there is multiple zero points, if the interface external temperature is ascendant trend, first temperature threshold Point is greater than current interface external temperature, and closest to the preset zero point of the current interface external temperature；If institute Stating interface external temperature is downward trend, and the second temperature critical point is less than current interface external temperature, and closest to institute State the preset zero point of current interface external temperature.
Wherein, mutual backup channel between the data transmission channel and its preliminary data transmission channel, does not work currently Data transmission channel be work in data transmission channel alternate channel.Data transmission channel and standby transport channel channel Structure can be identical, data transmission channel and preliminary data transmission channel may be that structure is different but input and output complete one The channel of cause.Specifically, data transmission channel can be sendaisle and/or alternate channel, then sendaisle and spare transmission Channel mutual backup channel, receiving channel and its spare receiving channel mutual backup channel.The structure of spare sendaisle can be with Identical with sendaisle, spare sendaisle may be that structure is different with sendaisle but input and output and sendaisle are complete Consistent channel；The structure of spare receiving channel can be identical with receiving channel, and spare receiving channel may be structure and connect Receive channel different but input and output and the completely the same channel of receiving channel.
Wherein, the first adaptation parameter and the second adaptation parameter and the first zero point and second temperature critical point are pre- Chip sample is first passed through to test to obtain and save.First adaptation parameter is opposite with the zero point and the ascendant trend It answers, the second adaptation parameter is corresponding with the zero point and the downward trend.Each adaptation parameter can be pre-saved It is then warm according to interface outside with the corresponding table of each zero point and interface exterior temperature change trend (rising or falling) The zero point of degree variation tendency and temperature changing trend determines corresponding adaptation parameter.If in advance to interface external temperature into Gone segmentation, each temperature section corresponds to one or more groups of adaptation parameters, then can according to the variation tendency of interface external temperature (on Rise or decline) and current interface external temperature determine the temperature section that determination will reach, choose the corresponding adaptation of the temperature section and join Number is the first adaptation parameter or the second adaptation parameter.If each temperature section corresponds to multiple groups adaptation parameter, can therefrom select at random One group is taken to configure.
In one possible implementation, the data transmission channel is the receiving channel of interface, the preliminary data Transmission channel is the alternate channel of the receiving channel, and the processor is also used to: detecting the data transmission channel or spare The amplitude of signal received by data transmission channel, in the amplitude for calculating adjacent signal obtained twice, rear primary gained To amplitude subtract before primary obtained amplitude difference；If the difference is greater than or equal to 0, time counting is cumulative, until When the difference is less than 0, time count halted；If when time count halted, time count value is less than preset first threshold value, It is cumulative to continue time counting, until when the difference is less than 0, time count halted；If when time count halted, time meter Numerical value is greater than or equal to first threshold value, records the time count value, and the time count value is the upper of the signal Rise along the sum of time and peak holding time, and signal detected along record time counting cumulative process most substantially Value, and time counting is reset；If the difference is less than or equal to 0, time counting is cumulative, until stopping when the difference is greater than 0 Only time counting；If when time count halted, time count value is less than preset second threshold value, it is tired to continue time counting Add, until when the difference is greater than 0, time count halted；If when time count halted, time count value is greater than or equal to described Second threshold value, records the time count value, and the time count value is that the failing edge time of the signal and minimum value are protected It holds the sum of time, and the minimum amplitude of signal detected in record time counting cumulative process, and time counting is clear Zero；Wherein, the initial value of time counting is 0.
The interface of the chip is able to carry out temperature self-adaptation, has moderately good performance, received signal is more It is clear and accurate, it is based on such chip interface, the signal further progress that chip interface receives is restored, so as to more quasi- Really restore the pulse signal sended over.
In the chip, the interface that processor is connected can be multiple for one, and each interface includes data transmission channel With preliminary data transmission channel, processor is identical with management function to the control of each interface.
In one possible implementation, the chip can also be described including amplitude detector and time counter Interface, amplitude detector and time counter are connected with the processor, detect the interface institute by the amplitude detector The amplitude of the signal received, the processor read the amplitude that amplitude detector detects；Time is carried out by time counter It counts, start and stop, clearing and the time count value of read access time counter etc. of the processor control time counter.Amplitude Detector and the separation of time counter and processor can mitigate the pressure of processor.Amplitude detector and time counter can also Think a part of processor.
Fourth aspect, the application provide a kind of equipment for data transmission, and the equipment includes described in fourth aspect Chip.
5th aspect, the application provides a kind of computer readable storage medium, including instruction, when it runs on computers When, so that computer executes method described in first aspect.
6th aspect, the application provide a kind of computer program product comprising instruction, when run on a computer, So that computer executes method described in first aspect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of chip provided by the embodiment of the present application
Fig. 2 is the structural schematic diagram of another kind chip provided by the embodiment of the present application
Fig. 3 is the structural schematic diagram of another chip provided by the embodiment of the present application；
Fig. 4 is a kind of flow diagram of temperature self-adaptation method provided by the embodiments of the present application；
Fig. 5 is a kind of block diagram of temperature self-adaptation device provided by the embodiments of the present application；
Fig. 6 is the exemplary diagram provided by the embodiments of the present application for receiving distorted signals；
Fig. 7 is a kind of flow diagram of signal reduction method provided by the embodiments of the present application；
Fig. 8 is the flow diagram of another temperature self-adaptation method provided by the embodiments of the present application；
Fig. 9 is a kind of block diagram of signals revivification device provided by the embodiments of the present application；
Figure 10 is the block diagram of another temperature self-adaptation device provided by the embodiments of the present application；
Figure 11 is the structural schematic diagram of another chip provided by the embodiments of the present application.
Specific embodiment
The embodiment of the present application provides a kind of equipment for data transmission, including one or more the embodiment of the present application are mentioned The chip of confession.Chip provided by the embodiment of the present application, such as shown in Fig. 1, including interface & processor, interface for receiving and Signal is sent, processor is connected with interface；Interface includes data transmission channel, is used for transmission data.Specifically, data are transmitted Channel includes sendaisle and receiving channel.Sendaisle may include preemphasis/postemphasis (Pre-emphasis/De- Emphasis) module and transmission amplitude amplification module (i.e. analog gain control module, Analog Gain Control, AGC) (AGC1), and with preemphasis/module of postemphasising is connected, for the preemphasis/register that module of postemphasising is configured (preemphasis/postemphasis module register), and with send amplitude amplification module be connected, for send amplitude amplification module into The register (AGC1 register) of row configuration.Receiving channel may include reception amplitude pre-amplification module (AGC2), continuous time Amplification module (AGC3) after linear equalization (Continuous Time Linear Equalizer, CTLE) module, reception amplitude With decision feedback equalization (Decision Feedback Equalizer, DFE) module, and with receive amplitude pre-amplification module It is connected, the register (AGC2 register) for being configured to reception amplitude pre-amplification module, it is linearly equal with continuous time Weighing apparatus module is connected, for being connected the register (CTLE register) that is configured to continuous time linear equalization module, and connects After receipts amplitude amplification module be connected, the register (AGC3 register) for being configured to amplification module after reception amplitude, It is connected with decision feedback equalization module, the register (DFE register) for being configured to decision feedback equalization module. Processor, such as MCU or MPU pass through management passage such as structure of management information (Structure of Management Information, SMI) or bus and interface standard (Peripheral Component Interconnect Express, PCIE) management passage is connected with above-mentioned each register, is managed for the parameter configuration to sendaisle and receiving channel And control.
The data transmission channel provided in the embodiment of the present application is also configured with preliminary data transmission channel.It specifically, can be with Receiving channel only in data transmission channel configures spare receiving channel, such as shown in Fig. 1；It is logical to may also be only data transmission Sendaisle in road configures spare sendaisle, such as shown in Fig. 2；Or the sendaisle in data transmission channel is matched It purchases and uses sendaisle, and configure spare receiving channel for receiving channel, such as shown in Fig. 3.
Wherein, spare sendaisle is the alternate channel of sendaisle, and structure can be identical with sendaisle, spare transmission Channel may be the structure channel completely the same with sendaisle difference but input and output and sendaisle；Spare receiving channel For the alternate channel of receiving channel, structure can be identical with receiving channel, and spare receiving channel may be structure and receive logical Road is different but input and output and the completely the same channel of receiving channel.
Processor equally passes through management passage and is connected with the register of spare sendaisle and spare receiving channel, is used for The parameter configuration of spare sendaisle and spare receiving channel is managed and is controlled.Processor is also used to pass through management passage The switching between sendaisle and spare sendaisle is only carried out, or is only carried out between receiving channel and spare receiving channel Switching, or carry out the switching between sendaisle and spare sendaisle and carry out receiving channel and spare receiving channel Between switching, specifically, processor can be by the register to sendaisle and spare sendaisle, or to receiving channel Switching command (such as forbidding instructing or enabling instruction) is sent with the register of spare receiving channel to complete the switching in channel, example It is working such as current receiving channel, is forbidding instructing to the transmission of the register of receiving channel, and to the register of spare receiving channel Enabled instruction is sent, the switching of receiving channel to spare receiving channel is completed.
It should be noted that receiving channel and spare receiving channel mutual backup channel, sendaisle and spare send are led to Road mutual backup channel.If being currently that receiving channel is working, spare receiving channel is the alternate channel of receiving channel, if working as Spare receiving channel is working when preceding, then receiving channel is the alternate channel of spare receiving channel, sendaisle and spare transmission Channel.When receiving alternate channel of the channel as spare receiving channel, former spare receiving channel can be described as receiving channel, former Receiving channel is then known as spare receiving channel, similarly, former spare when alternate channel of the sendaisle as spare sendaisle Sendaisle can be described as sendaisle, and former sendaisle is then known as spare sendaisle.
Processor is also connected with temperature sensor, and the temperature sensor is for detecting interface external temperature, the temperature Sensor may belong to chip, be a part of chip, can also be independently of chip.Interface external temperature connects when being interfaces Temperature around mouthful.
It should be noted that interface can also only include receiving channel in chip provided by the embodiment of the present application, and Spare receiving channel, that is, interface only receive signal；Or interface only includes sendaisle and spare sendaisle, It is exactly that interface only sends signal.
Before the temperature self-adaptation method for implementing chip interface, first chip sample is tested, obtains distinct interface External temperature situation lower interface is able to maintain the adaptation parameter of superperformance.Such as it can be drawn in advance according to chip actual working environment Divide three interface external temperature sections (for convenience of description, referred to as temperature section): low-temperature zone (10-18 DEG C), middle-temperature section (18-27 DEG C) With high temperature section (27-36 DEG C), the adaptation parameter that interface is able to maintain superperformance in three temperature sections respectively is obtained by test, Such as low-temperature zone adaptation parameter, middle-temperature section adaptation parameter and high temperature section adaptation parameter.In the case where only spare receiving channel, respectively Temperature section adaptation parameter (low-temperature zone adaptation parameter, middle-temperature section adaptation parameter and high temperature section adaptation parameter) only refers to the suitable of receiving channel With parameter；In the case where only spare sendaisle, each temperature section adaptation parameter only refers to the adaptation parameter of sendaisle；Spare hair In the case where sending channel and spare receiving channel to have, each temperature section adaptation layer parameter refers to the adaptation of sendaisle and receiving channel Parameter.The adaptation parameter of each temperature section can be one or more groups of.
One or more temperature in temperature section can be chosen as zero point, zero point can be according to interface Working performance situation choose.When interface external temperature is ascendant trend, and reach the first zero point of ascendant trend, or Interface external temperature is downward trend, and reach downward trend to second temperature critical point when, should be to receiving channel and standby It is switched over receiving channel, or sendaisle and spare sendaisle is switched over, or simultaneously to receiving channel and standby It is switched over receiving channel and sendaisle and spare sendaisle.First zero point of ascendant trend and decline The second temperature critical point of trend can be identical value, such as three temperature sections are as follows: low-temperature zone (10-18 DEG C), middle-temperature section (18-27 DEG C) and high temperature section (27-36 DEG C), then can choose 18 DEG C and 27 DEG C is zero point, current interface external temperature In low-temperature zone, temperature change is in rising trend, then the first zero point is 18 DEG C, when interface external temperature is in middle-temperature section, Temperature change is on a declining curve, then also not 18 DEG C of second temperature critical point.Obtaining the adaptation of each temperature section, each temperature section After parameter and one or more zero points, by each temperature section, the corresponding adaptation parameter of each temperature section and one Or multiple zero points are stored in memory, if processor is MCU, are stored in the memory of MCU, if processing Device itself is then stored in the memory being connected with processor without memory.
It referring to fig. 4, is a kind of temperature self-adaptation method provided by the embodiments of the present application, the method is for making connecing for chip Mouth can keep good stable performance at different temperatures.The described method includes:
Step S401, processor obtain interface external temperature, calculate in adjacent interface external temperature obtained twice, after The difference for the interface external temperature that the interface external temperature once obtained once obtains before subtracting；
Step S402 judges whether the difference being calculated is positive number；
Step S403, if so, judging the difference being calculated whether continuous k times as positive number, if so, the interface External temperature is ascendant trend；
Step S404 judges whether the difference being calculated is t times continuous if the difference being calculated is negative For negative, if so, the interface external temperature is downward trend；
Wherein k and t is positive integer, can be according to the pace of change of interface external temperature and the speed of acquisition interface external temperature Rate is preset, and k can be equal with t.
Specifically, processor can read temperature sensor, obtain interface external temperature.Processor can be with periodic reading Interface external temperature, or interface external temperature is read according to preset rate.Processor can be read outside interface every time Temperature just calculates the difference that the interface external temperature that this time is read subtracts the interface external temperature that the adjacent last time reads Value, judges whether the difference is positive number, if so, the number that difference is positive number adds 1, if the continuous k difference being calculated is all For positive number, then specification interface external temperature is rising, and interface external temperature is ascendant trend.Such as k is equal to 5, n-th is read Interface external temperature be denoted as T (n), calculate T (n+1)-T (n), if T (n+1)-T (n) is greater than 0, difference is the number of positive number Add 1, if T (n+1)-T (n), T (n+2)-T (n+1), T (n+3)-T (n+2), T (n+4)-T (n+3), T (n+5)-T (n+4) are Positive number, i.e. difference continuous 5 times are positive number, it is determined that interface external temperature is ascendant trend.If difference does not have to be positive for continuous k times Number, when negative occurs in difference, difference is that the number of positive number is reset, and difference is that the number of negative adds 1.
Similarly, if the difference being calculated is negative, difference is that the number of negative adds 1, if t times continuous, is calculated Difference be all negative, then specification interface external temperature is declining, interface external temperature be downward trend.If difference is not continuous K times is negative, and when positive number occurs in difference, difference is that the number of negative is reset, and difference is that the number of positive number adds 1.
If both discontinuous k positive number or discontinuous t negative, interface external temperature might for the difference being calculated Only temporary fluctuation ignores these fluctuations, does not execute subsequent step.
Since above-mentioned calculating can be being after chip starting, it should be noted that the sendaisle and receiving channel of interface Configured default parameters in advance on startup.
Step S405, if interface external temperature be ascendant trend, judge whether the interface external temperature reaches described on First zero point of the trend of liter；
Step S406 transmits preliminary data logical when the interface external temperature is not up to first zero point The parameter configuration in road is the first adaptation parameter.
Step S407 transmits the data of interface logical when the interface external temperature reaches first zero point Road switches to the preliminary data transmission channel；
Step S408, if interface external temperature is downward trend, under judging whether the interface external temperature reaches described The second temperature critical point of drop trend；
Step S409 transmits preliminary data logical when the interface external temperature is not up to the second temperature critical point The parameter configuration in road is the second adaptation parameter.
Step S4010 transmits the data of interface logical when the interface external temperature reaches the second temperature critical point Road switches to the preliminary data transmission channel.
Wherein, data transmission channel can be receiving channel, and correspondingly preliminary data transmission channel receives channel to be spare； Or data transmission channel is sendaisle, correspondingly preliminary data transmission channel is spare sendaisle；Or data transmission Channel is receiving channel and sendaisle, and correspondingly preliminary data transmission channel is spare receiving channel and spare sendaisle.
Wherein, the first zero point, second temperature critical point, the first adaptation parameter and the second adaptation parameter are set in advance It sets.
Specifically, if the interface external temperature is not up to preset first zero point of the ascendant trend, or The preset second temperature critical point of the downward trend, processor is by spare sendaisle and/or the ginseng of spare receiving channel Number is configured to preset adaptation parameter, specifically, will be standby if the interface external temperature is not up to first zero point It is preset first adaptation parameter or the interface external temperature with the parameter configuration of sendaisle and/or spare receiving channel The preset second temperature critical point of the not up to described downward trend, by spare sendaisle and/or the ginseng of spare receiving channel Number is configured to preset second adaptation parameter, continues to judge whether the interface external temperature reaches first zero point Or the second temperature critical point；
If the interface external temperature reaches first zero point or the second temperature critical point, will currently send out The spare sendaisle for sending channel to switch to the currently transmitted channel；Or currently transmitted channel is switched into the current hair Send the spare sendaisle in channel；Or current receiving channel is switched to the spare receiving channel of the current receiving channel, And currently transmitted channel is switched to the spare sendaisle in the currently transmitted channel.
Wherein, if the interface external temperature is ascendant trend, if any multiple zero points, then first temperature is faced Boundary's point be greater than current interface external temperature, and closest to the current interface external temperature preset zero point；If The interface external temperature is downward trend, the second temperature critical point be less than current interface external temperature, and it is closest The preset zero point of the current interface external temperature.Such as three temperature sections are as follows: low-temperature zone (10-18 DEG C), medium temperature Section (18-27 DEG C) and high temperature section (27-36 DEG C), 18 DEG C and 27 DEG C are zero point, if interface external temperature is ascendant trend, Current interface external temperature is 17 DEG C, greater than current interface external temperature and closest to the temperature threshold of current interface external temperature Point is 18 DEG C, then the first zero point of ascendant trend is 18 DEG C；If interface external temperature is ascendant trend, outside current interface Portion's temperature is 25 DEG C, then the first zero point of ascendant trend is 27 DEG C.Similarly, if interface external temperature is downward trend, Current interface external temperature is 30 DEG C, then is less than current interface external temperature and faces closest to the temperature of current interface external temperature Boundary's point is 27 DEG C, then the second temperature critical point of downward trend is 27 DEG C；If interface external temperature is downward trend, current interface External temperature is 21 DEG C, then the second temperature critical point of downward trend is 18 DEG C.
If interface external temperature is ascendant trend or downward trend, and is not up to the first temperature threshold of the ascendant trend The parameter configuration of spare sendaisle or spare receiving channel is in advance then preset first adaptation parameter by point, or will be standby It is preset first adaptation parameter with the parameter configuration of sendaisle and spare receiving channel；Or interface external temperature is not up to The second temperature critical point of downward trend, then in advance by the parameter configuration of spare sendaisle or spare receiving channel be it is preset Second adaptation parameter, or by the parameter configuration of spare sendaisle and spare receiving channel be preset second adaptation parameter. Wherein spare sendaisle is the alternate channel in currently transmitted channel, wherein spare receiving channel is the spare of current receiving channel Channel, the currently transmitted channel are currently in the sendaisle of work, and the current receiving channel is currently connecing in work Receive channel.
Wherein adaptation parameter (including the first adaptation parameter and second adaptation parameter) can be with zero point (including first Zero point and second temperature critical point) and temperature changing trend (ascendant trend or downward trend) it is corresponding.It can be preparatory Save the corresponding table of each adaptation parameter with each zero point and interface exterior temperature change trend (rising or falling), example Such as three temperature sections are as follows: low-temperature zone (10-18 DEG C), middle-temperature section (18-27 DEG C) and high temperature section (27-36 DEG C), 18 DEG C and 27 DEG C are Zero point: interface exterior temperature change trend is ascendant trend, and the first zero point is 18 DEG C, then the first adaptation parameter Choose middle-temperature section adaptation parameter N2 (i.e. ascendant trend, 18 DEG C of corresponding middle-temperature section adaptation parameters in corresponding table)；Temperature outside interface Degree variation tendency is ascendant trend, and second temperature critical point is 27 DEG C, then the first adaptation parameter chooses high temperature section adaptation parameter N3 (i.e. ascendant trend, 27 DEG C of corresponding high temperature section adaptation parameters in corresponding table)；Zero point is 27 DEG C, and interface external temperature becomes Change trend is downward trend, then the second adaptation parameter chooses middle-temperature section adaptation parameter N2 (i.e. downward trend, 27 DEG C in corresponding table Corresponding middle-temperature section adaptation parameter)；Zero point is 18 DEG C, and interface exterior temperature change trend is downward trend, then second is suitable Low-temperature zone adaptation parameter N1 (i.e. downward trend, 18 DEG C of corresponding low-temperature zone adaptation parameters in corresponding table) is chosen with parameter.Wherein N1, N2 and N3 are adaptation parameter mark.
If being segmented in advance to interface external temperature, and each interface external temperature segmentation (referred to as temperature section) is right One or more groups of adaptation parameters are answered, then the first adaptation parameter and the second adaptation parameter can also be according to the variations of interface external temperature Trend (rising or falling) and current interface external temperature determine.Such as current interface external temperature institute is chosen according to variation tendency The adaptation parameter corresponding to the adjacent temperature section of temperature section is as first adaptation parameter or the second adaptation parameter, if outside connects Mouth temperature is ascendant trend, then the temperature of temperature section where the temperature of the adjacent temperature section is greater than current interface external temperature； If external interface temperature is downward trend, the temperature of the adjacent temperature section is less than temperature section where current interface external temperature Temperature.Such as three temperature sections are low-temperature zone (10-18 DEG C), middle-temperature section (18-27 DEG C) and high temperature section (27-36 DEG C), difference Corresponding low-temperature zone adaptation parameter, middle-temperature section adaptation parameter and high temperature section adaptation parameter.Interface external temperature is ascendant trend, currently Interface external temperature belongs to low-temperature zone, then the first adaptation parameter chooses middle-temperature section adaptation parameter；If interface external temperature is to rise Trend, current interface external temperature belong to middle-temperature section, then the first adaptation parameter chooses high temperature section adaptation parameter；If temperature outside interface Degree is downward trend, and current interface external temperature belongs to high temperature section, then the second adaptation parameter chooses middle-temperature section adaptation parameter；If connecing Mouth external temperature is downward trend, and current interface external temperature belongs to middle-temperature section, then the second adaptation parameter chooses low-temperature zone adaptation Parameter.If each temperature section corresponds to multiple groups adaptation parameter, one group can be therefrom randomly selected to configure.
If interface external temperature reaches zero point (the of the first zero point of ascendant trend or downward trend Two zero points), then by currently transmitted channel switch to currently transmitted channel spare sendaisle (only it is spare send it is logical When road), or current receiving channel is switched to spare receiving channel when spare receiving channel (only) of current receiving channel, Or currently transmitted channel and current receiving channel are all switched to respective alternate channel (spare sendaisle and spare reception Channel is all sometimes).Chip carries out the transmission of signal using the data transmission channel for being configured with adaptation parameter always and/or connects in this way It receives, which is adapted to interface external temperature and reaches the temperature after zero point, keeps data transmission channel better Current Temperatures are adapted to, thus realize the temperature self-adaptation of interface, the performance for keeping interface moderately good.Wherein, to sendaisle Alternate channel is all set with receiving channel, to carry out adaptation parameter configuration and channel switching, compared to only to sendaisle or reception Alternate channel is arranged in channel, can preferably improve the temperature self-adaptation ability of interface.
Chip interface temperature self-adaptation scheme provided by the present application is that sendaisle and/or receiving channel setting are spare logical Road, according to the trend of interface exterior temperature change, is not up to temperature in interface external temperature when interface external temperature changes When spending the zero point of variation tendency, adaptation parameter is configured by alternate channel in advance, which is adapted to outside interface Portion's temperature reaches the temperature after zero point, when interface external temperature reaches zero point, by sendaisle and/or connects It receives channel and is switched to corresponding alternate channel, since the adaptation parameter of alternate channel configuration is adaptable to current interface external temperature , thus interface can keep moderately good performance under current interface external temperature, realize chip interface to temperature from It adapts to, to improve the ability of interface reply temperature change, interface is enable to meet performance requirement in wide temperature range, and And since scheme is carried out in a manner of software adjusting parameter, it is not only restricted to the difference of hardware between chip, thus can also be mentioned The consistency of high chip yield and chip interface performance.
Referring to Fig. 5, the embodiment of the present application also provides a kind of temperature self-adaptation device, and described device includes:
Temperature acquiring unit U501, for obtaining interface external temperature；
Computing unit U502, for calculating in adjacent interface external temperature obtained twice, the interface once obtained afterwards The difference for the interface external temperature that external temperature once obtains before subtracting；
Trend determination unit U503 is positive number for the determining difference whether continuous k times be calculated, if so, The interface external temperature is ascendant trend；And for determine be calculated the difference whether continuous t time be negative, If so, the interface external temperature is downward trend；Wherein k and t are preset.
Wherein temperature acquiring unit can be connected with temperature sensor, read the temperature value of temperature sensor, thus obtain Interface external temperature.Each temperature acquiring unit reads interface external temperature, and what computing unit just calculated that this time read connects Mouth external temperature subtracts the difference for the interface external temperature that the adjacent last time reads, and judges the difference by trend determination unit Whether it is positive number, if so, the number that difference is positive number adds 1, if the continuous k difference being calculated all is positive number, illustrates Interface external temperature is rising, and interface external temperature is ascendant trend, the determination to downward trend.
Configuration unit U504, if being ascendant trend for interface external temperature, when the interface external temperature is not up to institute Preset first zero point of ascendant trend is stated, the parameter configuration by spare sendaisle and/or spare receiving channel is Preset first adaptation parameter, the spare sendaisle are the alternate channel in currently transmitted channel, the spare receiving channel For the alternate channel of current receiving channel；
Switch unit U505, if being ascendant trend for interface external temperature, when the interface external temperature reaches described The currently transmitted channel is switched to the spare sendaisle, and/or current receive is led to by the first zero point Road switches to the spare receiving channel；
The configuration unit U504 is also used to, if the interface external temperature is downward trend, the temperature outside the interface Degree is not up to the preset second temperature critical point of the downward trend, by spare sendaisle and/or spare receiving channel Parameter configuration is preset second adaptation parameter；
The switch unit U505 is also used to: if the interface external temperature is downward trend, the temperature outside the interface Degree reaches the second temperature critical point, the currently transmitted channel is switched to the spare sendaisle, and/or will be described Current receiving channel switches to the spare receiving channel.
Wherein, if there is multiple zero points, if interface external temperature is ascendant trend, first zero point is Greater than current interface external temperature, and the preset zero point of the closest current interface external temperature；If outside interface Portion's temperature is downward trend, and the second temperature critical point is currently to connect less than current interface external temperature, and closest to described The preset zero point of mouth external temperature.
Wherein, the currently transmitted channel is currently in the sendaisle of work, and the current receiving channel is currently to exist The receiving channel of work.If interface external temperature is ascendant trend, and is not up to the first zero point of the ascendant trend The parameter configuration of spare sendaisle is in advance preset first adaptation parameter by configuration unit, or by the ginseng of spare receiving channel Number is configured to preset first adaptation parameter, or by the parameter configuration of spare sendaisle and spare receiving channel is preset First adaptation parameter；If interface external temperature is downward trend, and the second temperature critical point of the not up to downward trend is matched Setting unit is in advance preset second adaptation parameter by the parameter configuration of spare sendaisle, or by the parameter of spare receiving channel It is configured to preset second adaptation parameter, or by the parameter configuration of spare sendaisle and spare receiving channel is preset the Two adaptation parameters.
Wherein, adaptation parameter (including the first adaptation parameter and second adaptation parameter) can be with zero point (including One zero point and second temperature critical point) and temperature changing trend (ascendant trend or downward trend) it is corresponding.It can be pre- The corresponding table of each adaptation parameter with each zero point and interface exterior temperature change trend (rising or falling) is first saved, Then configuration unit determines corresponding adaptation according to the zero point of interface exterior temperature change trend and temperature changing trend Parameter, such as three temperature sections are low-temperature zone (10-18 DEG C), middle-temperature section (18-27 DEG C) and high temperature section (27-36 DEG C), and correspondence is low Temperature section adaptation parameter, middle-temperature section adaptation parameter and high temperature section adaptation parameter.Interface exterior temperature change trend is ascendant trend, the One zero point is 18 DEG C, then the first adaptation parameter is middle-temperature section adaptation parameter, and interface exterior temperature change trend is decline Trend, second temperature critical point are 18 DEG C, then the second adaptation parameter is low-temperature zone adaptation parameter.If in advance to interface external temperature It is segmented, each temperature section corresponds to one or more groups of adaptation parameters, then configuration unit can be according to interface external temperature Variation tendency (rising or falling) and current interface external temperature determine the first adaptation parameter or the second adaptation parameter, such as interface External temperature is ascendant trend, and current interface external temperature belongs to low-temperature zone, then the first adaptation parameter is middle-temperature section adaptation parameter, If interface external temperature is lower liter of trend, current interface external temperature belongs to middle-temperature section, then the second adaptation parameter is suitable for low-temperature zone With parameter.If each temperature section corresponds to multiple groups adaptation parameter, one group can be therefrom randomly selected to configure.
If interface external temperature reaches zero point (the second of the first zero point of ascendant trend or downward trend Zero point), then the spare sendaisle that currently transmitted channel is switched to currently transmitted channel by switch unit is (only spare When sendaisle), or by current receiving channel switch to current receiving channel spare receiving channel (only it is spare receive it is logical When road), or currently transmitted channel and current receiving channel are all switched to respective alternate channel and (spare sendaisle and connect Receive channel all sometimes).Interface channel due to being configured with adaptation parameter can preferably adapt to Current Temperatures, it is thus possible to which realization connects The temperature self-adaptation of mouth, the performance for keeping interface moderately good.
Chip interface temperature self-adaptation device provided by the present application, when interface external temperature changes, according to interface The trend of exterior temperature change in advance will be spare before interface external temperature reaches the zero point of temperature changing trend Channel is configured to adaptation parameter, and when interface external temperature reaches zero point, sendaisle and/or receiving channel are switched To corresponding alternate channel, since the adaptation parameter of alternate channel configuration is adaptable to current interface external temperature, thus connect Mouth can keep moderately good performance under current interface external temperature, improve the ability of interface reply temperature change, make to connect Mouth can meet performance requirement in wide temperature range, and be not only restricted to the difference of hardware between chip, to improve core The consistency of piece yield and chip interface performance.
The embodiment of the present application also provides a kind of chip, and the chip includes processor and interface, the processor and described Interface is connected, and as shown in Figure 1, Figure 2 or shown in Fig. 3, the interface includes sendaisle and receiving channel and spare sendaisle And/or spare receiving channel, the spare sendaisle and sendaisle mutual backup channel, the spare receiving channel With receiving channel mutual backup channel；The processor is for executing method as shown in Figure 4.
Wherein, processor passes through management passage and sendaisle, receiving channel, spare sendaisle and spare receiving channel Each register be connected, for sendaisle, receiving channel, the parameter configuration of spare sendaisle and spare receiving channel It is managed and controls.The structure of spare sendaisle can be identical with sendaisle, and spare sendaisle may be structure Different but input and output and the completely the same channel of sendaisle with sendaisle；The structure of spare receiving channel can and receive Channel is identical, and spare receiving channel may be that structure is different with receiving channel but input and output and receiving channel are completely the same Channel.
Chip provided by the embodiment of the present application becomes when interface external temperature changes according to interface external temperature The trend of change in advance configures alternate channel to before interface external temperature reaches the zero point of temperature changing trend Sendaisle and/or receiving channel are switched to corresponding standby by adaptation parameter when interface external temperature reaches zero point With channel, since the adaptation parameter of alternate channel configuration is adapted to current interface external temperature, thus the interface of chip is with good Good temperature self-adaptation, the ability that interface copes with temperature change is strong, performance requirement can be met in wide temperature range, and And chip yield is high, chip interface performance is with uniformity.
After chip interface receives often there is certain distortion in signal, will not be the waveform of standard, such as shown in Fig. 6, left While being the signal sended over, the right is the signal after receiving, and the signal sended over is originally used for pulse signal, but after reception Then there is the apparent raising and lowering gradient in signal.
By temperature self-adaptation scheme provided by the embodiment of the present application, chip interface can keep at different temperatures good Good stable performance is conducive to improve to the reduction of signal further progress is received in this way to improve the accuracy for receiving signal The accuracy of signals revivification.Based on chip interface temperature self-adaptation scheme, the embodiment of the present application provided by the embodiment of the present application A kind of signal reduction method is also provided, the method further restores pulse signal received by interface, by what is received Signals revivification guarantees the accuracy of signal received to original waveform.As shown in Figure 7, which comprises
Step S701 detects the amplitude of signal received by interface, calculates the amplitude of adjacent signal obtained twice In, the difference of primary obtained amplitude before rear primary obtained amplitude subtracts.
Specifically, the amplitude of signal received by the receiving channel of interface is detected.
Step S702, judges whether the difference is greater than or equal to 0；
Step S703, if the difference is greater than or equal to 0, time counting is cumulative, until stopping when the difference is less than 0 Time counting；
Step S704, when judging time count halted, whether time count value is less than preset first threshold value；
Step S705, if when time count halted, if time count value is less than preset first threshold value, when continuing Between count cumulative, until when the difference is less than 0, time count halted, and return step S604 continues to judge time count value Whether first threshold value is less than；
Step S706, if when time count halted, time count value is greater than or equal to first threshold value, described in record Time count value, the time count value are the sum of rising time and peak holding time of the signal, and when record Between count the maximum amplitude of signal detected in cumulative process, and time counting is reset, return step S601, under continuing The signal in one stage is received, calculates and is restored；
Step S707, if the difference, less than 0, time counting is cumulative, until when the difference is greater than 0, dwell time meter Number；
Step S708, when judging time count halted, whether time count value is less than preset second threshold value；
Step S709 continues the time if when time count halted, time count value is less than preset second threshold value It counts and adds up, until time count halted, return step S608 continues whether to judge time count value when the difference is greater than 0 Less than second threshold value；
Step S7010 records institute if when time count halted, time count value is greater than or equal to second threshold value Time count value is stated, the time count value is the sum of failing edge time and minimum value retention time of the signal, Yi Jiji The minimum amplitude of signal detected in time counting cumulative process is recorded, and time counting is reset, return step S601, after The signal for continuing next stage is received, calculates and is restored；
Wherein, the initial value of time counting is 0；First threshold value and the second threshold value can be according to chip interface route speed The various factors such as the length of plate and cabling that rate, chip use emulate to obtain.
According to the method, the peak value and minimum value of signal can be received, obtained time count value is to receive The sum of the rising time (upstroke slope time) of signal and peak holding time or failing edge time (descending grade time) and The sum of minimum value retention time should and be worth the peak holding time or minimum value retention time of i.e. original burst signal, so just Peak value, minimum value and the peak holding time and minimum value retention time of original burst signal can be restored, so as to Accurate reproduction pulse signal.Also, the signal reduction method as provided by the embodiment of the present application is to be directed to have passed through temperature certainly Adapt to what signal received by the interface of processing carried out, therefore it is higher to restore accuracy.
The embodiment of the present application also provides another temperature self-adaptation method, the method includes the steps S401 to S4010, with And step S701 to step S7010, step S701 are executed after step S407 or S4010, as shown in Figure 8.The method pair It has passed through signal received by the receiving channel of temperature self-adaptation processing to be restored, have passed through connecing for temperature self-adaptation processing It is high to receive the signal accuracy received described in channel, is more advantageous to the reduction for receiving signal, to improve the reduction for receiving signal Accuracy.
The embodiment of the present application also provides a kind of signals revivification device, as shown in figure 9, described device includes:
Amplitude detection unit U901 specifically, detects connecing for interface for detecting the amplitude of signal received by interface Receive the amplitude of signal received by channel；
Computing unit U902, in the amplitude for calculating adjacent signal obtained twice, rear primary obtained amplitude The difference of primary obtained amplitude before subtracting；
Ascent stage reduction unit U903, is used for:
If the difference is greater than or equal to 0, time counting is cumulative, until when the difference is less than 0, time count halted；
If time count value is less than preset first threshold value when time count halted, continues time counting and adds up, Until when the difference is less than 0, time count halted；
If when time count halted, time count value is greater than or equal to first threshold value, the time counting is recorded Value, the time count value are the sum of rising time and peak holding time of the signal, and record time counting tires out The maximum amplitude of detected signal during adding, and time counting is reset；
Decline stage reduction unit U904, is used for:
If the difference is less than or equal to 0, time counting is cumulative, until when the difference is greater than 0, time count halted；
If time count value is less than preset second threshold value when time count halted, continues time counting and adds up, Until when the difference is greater than 0, time count halted；
If when time count halted, time count value is greater than or equal to second threshold value, the time counting is recorded Value, the time count value are the lower liter of the signal along the sum of time and minimum value retention time, and record time counting The minimum amplitude of detected signal in cumulative process, and time counting is reset；
Wherein, the initial value of time counting is 0, and the first threshold value and the second threshold value can be according to chip interface route speed The various factors such as the length of plate and cabling that rate, chip use emulate to obtain.What ascent stage reduction unit was recorded connects Collect mail number peak value, that is, original burst signal peak value, obtained time count value be reception signal rising time (on Uphill slope spends the time) and the sum of peak holding time, i.e. the peak holding time of original burst signal.Decline reduction unit is recorded Reception signal minimum value, that is, original burst signal minimum value, the time count value recorded be the failing edge time (decline The sum of the gradient time) and the minimum value retention time, the minimum value retention time of original burst signal, thus the device can restore Peak value, minimum value and the peak holding time of original burst signal and minimum value retention time, so that accurate reproduction pulse is believed Number.Also, since described device is restored based on signal received by the interface for being able to carry out temperature self-adaptation, also Former accuracy is higher.
The embodiment of the present application also provides another temperature self-adaptation device, and described device includes device and Fig. 9 shown in fig. 5 Shown in device, as shown in Figure 10, amplitude detection unit is connected with switch unit, according to the handover operation of switch unit determination connect The collection of letters number is receiving channel or spare receiving channel, detects signal received by receiving channel or spare receiving channel Amplitude.In described device, Fig. 5 shown device can not also be connected with Fig. 9 shown device, and amplitude detection unit directly detects simultaneously Receiving channel and spare receiving channel, since one of receiving channel and spare receiving channel can receive signal, amplitude inspection Need to only the signal received be detected by surveying unit, be not required to judge signal from receiving channel or spare receiving channel. Described device carries out temperature self-adaptation processing to interface, and to received by the receiving channel that have passed through temperature self-adaptation processing Signal is restored, and the signal accuracy received as described in the receiving channel that have passed through temperature self-adaptation processing is high, is more had Conducive to the reduction for receiving signal, therefore described device is higher to the reduction degree for receiving signal.
The embodiment of the present application also provides a kind of chip based on chip shown in Fig. 1, Fig. 2 or Fig. 3, and the chip includes interface And processor, it can also include amplitude detector and time counter, as shown in figure 11 (to be based on chip shown in Fig. 3 Example), the interface, amplitude detector and time counter are connected with the processor, and the amplitude detector is for detecting The amplitude of signal received by the interface, and be connected with the interface, specifically, amplitude detector can lead to receiving Road is connected with spare receiving channel.Start and stop, clearing and the read access time counter of the processor control time counter Time count value etc..The processor reads the amplitude that amplitude detector detects in real time, is used for:
In the amplitude for calculating adjacent signal obtained twice, rear primary obtained amplitude is primary obtained before subtracting The difference of amplitude；
If the difference is greater than or equal to 0, it is cumulative that control time counter carries out time counting, until the difference is less than When 0, time count halted device；
If when time count halted device, time count value is less than preset first threshold value, control time counter continues It is cumulative to carry out time counting, until when the difference is less than 0, time count halted device；
If when time count halted device, time count value is greater than or equal to first threshold value, the time meter is recorded Numerical value, the time count value are the sum of rising time and peak holding time of the signal, and record time counting The maximum amplitude of signal detected by amplitude detector in cumulative process, and time counter is reset；
If the difference is less than or equal to 0, it is cumulative that control time counter carries out time counting, until the difference is greater than When 0, time count halted device；
If when time count halted device, time count value is less than preset second threshold value, control time counter continues It is cumulative to carry out time counting, until when the difference is greater than 0, time count halted device；
If when time count halted device, time count value is greater than or equal to second threshold value, the time meter is recorded Numerical value, the time count value are the sum of failing edge time and minimum value retention time of the signal, and record time meter The minimum amplitude of signal detected by amplitude detector in number cumulative process, and time counter is reset；
Wherein, the initial value of time counting is 0, and the first threshold value and the second threshold value can be according to chip interface route speed The various factors such as the length of plate and cabling that rate, chip use emulate to obtain.The amplitude detector and time counter Or a part of processor.
Chip provided by the embodiment of the present application, chip interface are able to carry out temperature self-adaptation, have moderately good property Can, received signal is apparent accurate, be based on such chip interface, the signal that chip interface is received further into Row reduction, so as to more accurately restore the former pulse signal sended over.
The embodiment of the present application provides a kind of equipment for data transmission, and the equipment includes that one or more the application are real Chip provided by example is applied, such as may include chip shown in one and multiple as shown in Figure 1, Figure 2, Fig. 3 or Figure 11, or including Any two kinds, three kinds or four kinds of combination in chip shown in Fig. 1, Fig. 2, Fig. 3 and Figure 11.
The embodiment of the present application also provides a kind of computer readable storage medium, including instruction, when it runs on computers When, so that computer executes Fig. 4, Fig. 7 or method shown in Fig. 8.
The embodiment of the present application also provides a kind of computer program product comprising instruction, when run on a computer, So that computer executes Fig. 4, Fig. 7 or method shown in Fig. 8.

Claims (10)

1. a kind of temperature self-adaptation method characterized by comprising
If interface external temperature is ascendant trend, when the first temperature that the interface external temperature is not up to the ascendant trend is faced The parameter configuration of preliminary data transmission channel is the first adaptation parameter by boundary's point；When the interface external temperature reaches described The data transmission channel of interface is switched to the preliminary data transmission channel by one zero point；
If the interface external temperature is downward trend, when the interface external temperature is not up to the second temperature of the downward trend Critical point is spent, is the second adaptation parameter by the parameter configuration of the preliminary data transmission channel；When the interface external temperature reaches To the second temperature critical point, the data transmission channel of interface is switched into the preliminary data transmission channel.
2. the method as described in claim 1, which is characterized in that further include:
Interface external temperature is obtained, is calculated in adjacent interface external temperature obtained twice, outside the interface once obtained afterwards The difference for the interface external temperature that temperature once obtains before subtracting；
If the difference being calculated continuous k times is positive number, the interface external temperature is ascendant trend；
If the difference being calculated continuous t times is negative, the interface external temperature is downward trend；
Wherein k and t is preset positive integer.
3. method according to claim 1 or 2, which is characterized in that
If the interface external temperature is ascendant trend, first zero point is greater than current interface external temperature, and It is the zero point in multiple zero points closest to the current interface external temperature；
If the interface external temperature is downward trend, the second temperature critical point is less than current interface external temperature, and It is the zero point in multiple zero points closest to the current interface external temperature.
4. method as described in any one of claims 1 to 3, which is characterized in that the data transmission channel is the reception of interface Channel, the preliminary data transmission channel are the alternate channel of the receiving channel, the method also includes:
The amplitude of signal received by the data transmission channel or the preliminary data transmission channel is detected, calculates adjacent two In the amplitude of secondary obtained signal, the difference of primary obtained amplitude before rear primary obtained amplitude subtracts；
If the difference is greater than or equal to 0, time counting is cumulative, until when the difference is less than 0, time count halted；
If when time count halted, time count value continues time counting and adds up, until the difference less than the first threshold value When value is less than 0, time count halted；
If when time count halted, time count value is greater than or equal to first threshold value, the time count value, institute are recorded State the sum of rising time and the peak holding time that time count value is the signal, and record time counting cumulative process In detected signal maximum amplitude, and time counting is reset；
If the difference is less than or equal to 0, time counting is cumulative, until when the difference is greater than 0, time count halted；
If when time count halted, time count value continues time counting and adds up, until the difference less than the second threshold value When value is greater than 0, time count halted；
If when time count halted, time count value is greater than or equal to second threshold value, the time count value, institute are recorded The sum of failing edge time and the minimum value retention time that time count value is the signal are stated, and record time counting added up The minimum amplitude of detected signal in journey, and time counting is reset；
Wherein, the initial value of time counting is 0.
5. such as the described in any item methods of Claims 1-4, which is characterized in that
The data transmission channel and the preliminary data transmission channel structure having the same.
6. a kind of temperature self-adaptation device characterized by comprising
Configuration unit becomes if being ascendant trend for interface external temperature when the interface external temperature is not up to described rise The parameter configuration of preliminary data transmission channel is the first adaptation parameter by the first zero point of gesture；
Switch unit, if being ascendant trend for the interface external temperature, when the interface external temperature reaches described first The data transmission channel of interface is switched to the preliminary data transmission channel by zero point；
The configuration unit, if being also used to the interface external temperature is downward trend, when the interface external temperature is not up to The parameter configuration of the preliminary data transmission channel is the second adaptation parameter by the second temperature critical point of the downward trend；
The switch unit, if being also used to the interface external temperature is downward trend, when the interface external temperature reaches institute Second temperature critical point is stated, the data transmission channel of interface is switched into the preliminary data transmission channel.
7. device as claimed in claim 6, which is characterized in that further include:
Temperature acquiring unit, for obtaining interface external temperature；
Computing unit, it is rear primary for calculating in the adjacent obtained interface external temperature of the temperature acquiring unit described twice To interface external temperature subtract before the difference of interface external temperature that once obtains；
Trend determination unit, for determining the difference whether continuous k times be calculated for positive number, if so, the interface External temperature is ascendant trend；And for determining the difference whether continuous t times be calculated for negative, if so, institute Stating interface external temperature is downward trend；Wherein k and t is preset positive integer.
8. device as claimed in claims 6 or 7, which is characterized in that if the interface external temperature is ascendant trend, described the One zero point is greater than current interface external temperature, and is in multiple zero points closest to outside the current interface The zero point of temperature；
If the interface external temperature is downward trend, the second temperature critical point is less than current interface external temperature, and It is being the zero point of the closest current interface external temperature in multiple zero points.
9. such as the described in any item devices of claim 6 to 8, which is characterized in that the data transmission channel is the reception of interface Channel, the preliminary data transmission channel are the alternate channel of the receiving channel, described device further include:
Amplitude detection unit, for detecting signal received by the data transmission channel or the preliminary data transmission channel Amplitude；
Computing unit, in the amplitude for calculating adjacent signal obtained twice, rear primary obtained amplitude subtracts previous The difference of secondary obtained amplitude；
Ascent stage reduction unit, is used for:
If the difference is greater than or equal to 0, time counting is cumulative, until when the difference is less than 0, time count halted；
If when time count halted, time count value continues time counting and adds up, until the difference less than the first threshold value When value is less than 0, time count halted；
If when time count halted, time count value is greater than or equal to first threshold value, the time count value, institute are recorded State the sum of rising time and the peak holding time that time count value is the signal, and record time counting cumulative process In detected signal maximum amplitude, and time counting is reset；
Decline stage reduction unit, is used for:
If the difference is less than or equal to 0, time counting is cumulative, until when the difference is greater than 0, time count halted；
If when time count halted, time count value continues time counting and adds up, until the difference less than the second threshold value When value is greater than 0, time count halted；
If when time count halted, time count value is greater than or equal to second threshold value, the time count value, institute are recorded The sum of failing edge time and the minimum value retention time that time count value is the signal are stated, and record time counting added up The minimum amplitude of detected signal in journey, and time counting is reset；
Wherein, the initial value of time counting is 0.
10. a kind of equipment for data transmission, which is characterized in that including chip, the chip includes processor and interface, institute Stating interface includes data transmission channel and preliminary data transmission channel, and the processor requires any one of 1 to 5 for perform claim The method.
CN201810150443.7A 2018-02-13 2018-02-13 Temperature self-adaption method, device and equipment Active CN110162430B (en)

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