CN102664837A - Method for automatically detecting and completing setting matching of high speed digital signal in receiving and transmitting directions - Google Patents
Method for automatically detecting and completing setting matching of high speed digital signal in receiving and transmitting directions Download PDFInfo
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Abstract
The present invention relates to a method for automatically detecting and completing setting matching of a high speed digital signal in receiving and transmitting directions. The method comprises the following steps of: (1) designing a test plate; (2) developing a high speed digital signal cross board; (3) designing a control module, and completing traversal of the preaccentuation of all data output terminals and the equalization setting of data input terminals; (4) by using a second test board, collecting combination setting of all preaccentuation and equalization configuration and a bit error rate result of a corresponding pseudo random code verifier, and searching the combination of effective equalization and preaccentuation configuration with an optimal bit error rate; (5) on the condition that all high speed digital signal transmission lines have no problem is detected and confirmed, storing optimal data obtained in the control module for the use of future development. According to the method, the detection and setting of the high speed digital signal detection lines can be automatically completed without the need of manual intervention, manpower and material resources are saved, the accuracy of a result is raised, the method is applied to the integrity detection of all high speed digital signals, and the expansion of functions can be carried out latterly.
Description
Technical field
The present invention relates to high-speed digital signal integrity detection technical field, is that the method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in a kind of automatic detection specifically.That is: the telecommunication apparatus high-speed digital signal is provided with the method for coupling through transmit-receive position on the automation means detection completion respective signal line.
Background technology
Current telecommunication apparatus develops towards the direction of high integration; The frequency multiplication of data bus signal, and there is the difference of essence in the transmission of high-speed digital signal and low speed digital signal is under the situation of using 2.5Gbps, 10Gbps even higher speed; Because cabling live width, line length, medium such as select for use at factor affecting; Have that signal is depleted, intersymbol interference and unfavorable factor such as crosstalk, it is logical zero, logical one that receiving terminal is difficult to correct restore data, and the simple lifting quality of hardware of pass through; The measure of technology often makes cost heighten, and produces little effect.
For addressing these problems, the high-speed digital signal device possesses preemphasis and the equilibrium setting of receive direction of the signal of sending direction usually.Preemphasis is meant, for ease of the transmission or the record of signal, and the amplitude of its some spectrum component had a mind to the measure that strengthens in advance with respect to the amplitude of other components, makes signal quality on the receiver near the signal quality of original transmission; Equilibrium is meant, in order to reduce the linear distortion of transmission signals, departs from its ideal form and the compensation process that carries out to channel transfer functions.Utilize these to be provided with when guaranteeing that signal is transferred to the destination, can be by correct logical zero, the logical one of identifying.
In the present system design, every high-speed digital signal line (to the abbreviation of the cable of transmitting high speed digital signal) in use, corresponding equilibrium all needs fine tuning to guarantee signal integrity with increasing the weight of to be provided with in the high speed digital signal processor.Under the less situation of high-speed digital signal line number, can adopt high-speed oscilloscope to measure, the method that relevant setting in the high speed digital signal processor is set by hand achieves the goal; And current telecommunication apparatus has developed under the situation of high-speed digital signal line of up to a hundred even thousands of 2.5Gbps even 10Gbps, adopts instrument measurement to add the artificial method that is provided with and can not satisfy the demand that technological development, product are made.
Summary of the invention
To the defective that exists in the prior art, the object of the present invention is to provide a kind of automatic detection to accomplish the method that the high-speed digital signal transmit-receive position is provided with coupling.Adopt the automation means, realize the automatic detection of high-speed digital signal line, accomplish the high-speed digital signal transmit-receive position automatically coupling is set.
For reaching above purpose, the technical scheme that the present invention takes is:
The method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in a kind of automatic detection, it is characterized in that its concrete steps are:
The first step; High-speed digital signal plate 10 to needs test high-speed digital signal line; Design corresponding test board 20: every test board 20 possesses pseudo-noise code generator 30 and pseudo noise code verifier 40; The data output end 110 of test board 20 is connected to pseudo-noise code generator 30, and the data input pin 120 of test board 20 is connected to pseudo noise code verifier 40;
Second step; Exploitation high-speed digital signal cross board 80: said high-speed digital signal cross board 80 is used to make the input signal on the arbitrary signal line data input pin 90 of high-speed digital signal plate 10, points to the arbitrary signal line data output end 100 of high-speed digital signal plate 10;
The 3rd step, design control module 50, control module 50 is used to accomplish the setting of pseudo-noise code generator 30 on the test board 20, pseudo noise code verifier 40, and can pass through control channel 60, between the control module 50 of two test boards 20 of realization alternately;
Control module 50 is accomplished all data output end 110 preemphasis and the data input pin 120 balanced traversals that are provided with, so that confirm optimized parameter;
In the 4th step, second test board gathers the error rate result of all preemphasis and the pseudo noise code verifier 40 of balanced combination setting of disposing and correspondence; In all testing results, search the optimum efficient balance of the error rate, preemphasis configuration combination; When there are many group valid data in effective record or do not have the situation of any valid data, then:
Exist under the situation of many group valid data:, from some groups of allocation optimums, select in the control module 50 that best configuration records test board through artificial screening;
Do not have under the situation of any valid data: corresponding high-speed bus physical characteristic can't satisfy the high-speed digital signal transmission demand, characterizes the fabric swatch failure;
The 5th step, detect under the situation that confirms all high-speed digital signal line transmission no problems, preserve the optimal data that obtains in the control module 50, supply subsequent development to use.
On the basis of technique scheme; Test a pair of high-speed digital signal and use the pseudo-noise code generator 30 and pseudo noise code verifier 40 of same test board; Or use two different test boards; Use the wherein pseudo-noise code generator 30 of a test board, the pseudo noise code verifier 40 of another piece test board respectively.
On the basis of technique scheme; To the batch testing of whole high-speed digital signal plate 10, then need use polylith test board 20, adopt control channel 60 mutual communications between each test board; Each uses the pseudo-noise code generator 30 and pseudo noise code verifier 40 of same test board to high-speed digital signal; Or use two different test boards, use the wherein pseudo-noise code generator 30 of a test board, the pseudo noise code verifier 40 of another piece test board respectively.
On the basis of technique scheme; Data input pin 90 uses the paired setting of giving tacit consent to data output end 100: make the data that are sent to the data input pin 90 of high-speed digital signal plate from the data output end 110 of same test board; Sensing only needs a test board 20 to accomplish the detection of a pair of high-speed digital signal line corresponding to the data output end 100 of the high-speed digital signal plate of the data input pin 120 of this test board this moment.
On the basis of technique scheme; Data input pin 90 uses the paired setting of giving tacit consent to data output end 100: make the data that are sent to the data input pin 90 of high-speed digital signal plate from the data output end 110 of a test board; Point to corresponding data output end 100; The data input pin 120 of the data input pin 120 that corresponding data output end 100 connected for using in pairs with this data input pin 90 on another piece test board accomplished the detection of a pair of high-speed digital signal line this moment with two test boards 20.
On the basis of technique scheme, when control module 50 was confirmed optimized parameter, control module 50 control pseudo noise code transmitters 30 carried the signal of telecommunication of pseudo noise code to data output end 110 transmissions of its place test board; The corresponding pseudo noise code verifier 40 of control is done abnormality detection to 120 pairs of signals of telecommunication that receive of data input pin of its place test board, and concrete abnormality detection process is following:
Through high-speed digital signal cross board 80 is set; The data of the data output end 110 of first test board of permission send to the data input pin 120 of second test board; The equilibrium configuration of second test board is set; Through control channel 60, send instruction by second test board, carry out the configuration of different preemphasis values by first right data output end 110 port of test board to first test board; After the preemphasis configuration of each first test board is accomplished, second corresponding error rate result of pseudo noise code verifier 40 down that disposes of test board record; Accomplish the traversal of whole preemphasis configurations when first test board after, second test board is provided with next balanced configuration, sends the traversal that instruction to first test board begins preemphasis configuration for the second time once more; Up to accomplishing the traversal of all preemphasis with the combination of balanced configuration.
The method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in automatic detection of the present invention; Adopt the automation means, realize the automatic detection of high-speed digital signal line, accomplish the high-speed digital signal transmit-receive position automatically coupling is set, can be in the detection and the setting that need not to accomplish automatically under the situation of manual intervention the high-speed digital signal line; Use manpower and material resources sparingly; Also improved result's accuracy, be applicable to the integrity detection of all high-speed digital signals, the later stage can also be carried out function expansion.
Description of drawings
The present invention has following accompanying drawing:
Control mode sketch map between Fig. 1 dish,
The automatic traversal search algorithm flow chart of Fig. 2 high-speed digital signal.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Like Fig. 1, shown in 2, the method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in automatic detection of the present invention, and its concrete steps are:
The first step; High-speed digital signal plate (being called for short the high speed signal plate) 10 to needs test high-speed digital signal line; Design corresponding test board 20: every test board 20 possesses pseudo-noise code generator 30 and pseudo noise code verifier 40; The data output end 110 of test board 20 is connected to pseudo-noise code generator 30, and the data input pin 120 of test board 20 is connected to pseudo noise code verifier 40; Pass through control channel 60 interaction datas between two test boards 20;
Because high-speed digital signal uses in pairs; Test a pair of high-speed digital signal and use the pseudo-noise code generator 30 and pseudo noise code verifier 40 of same test board; Or use two different test boards; Use the wherein pseudo-noise code generator 30 of a test board, the pseudo noise code verifier 40 of another piece test board respectively;
Batch testing to whole high-speed digital signal plate 10; Then need use polylith test board 20; Adopt control channel 60 mutual communications between each test board, each uses the pseudo-noise code generator 30 and pseudo noise code verifier 40 of same test board to high-speed digital signal, or uses two different test boards; Use the wherein pseudo-noise code generator 30 of a test board, the pseudo noise code verifier 40 of another piece test board respectively;
Second step; Exploitation high-speed digital signal cross board 80: said high-speed digital signal cross board 80 is used to make the input signal on the arbitrary signal line data input pin 90 of high-speed digital signal plate 10, points to the arbitrary signal line data output end 100 of high-speed digital signal plate 10;
During actual the test; Data input pin 90 and data output end 100 can use the paired setting of acquiescence: make the data that are sent to the data input pin 90 of high-speed digital signal plate from the data output end 110 of same test board; Sensing only needs a test board 20 can accomplish the detection of a pair of high-speed digital signal line corresponding to the data output end 100 of the high-speed digital signal plate of the data input pin 120 of this test board this moment;
Also can make the data that are sent to the data input pin 90 of high-speed digital signal plate from the data output end 110 of a test board; Point to corresponding data output end 100; Data input pin that corresponding data output end 100 connected 120 is gone up the data input pins 120 with these data input pin 90 paired uses for another piece test board (can arbitrarily); Need this moment to adopt two test boards 20 could accomplish the detection of a pair of high-speed digital signal line; Hereinafter describing to adopt two test boards is that the example explanation is (when only needing a test board 20 to accomplish the detection of a pair of high-speed digital signal line; Can the data output end 110 that connect pseudo-noise code generator 30 be regarded as first test board, the data input pin 120 that connects pseudo noise code verifier 40 is regarded as second test board);
The 3rd step, design control module 50, control module 50 is used to accomplish the setting of pseudo-noise code generator 30 on the test board 20, pseudo noise code verifier 40, and can pass through control channel 60, between the control module 50 of two test boards 20 of realization alternately;
Because preemphasis, the balanced discreteness that is provided with; Control module 50 needs all data output end 110 preemphasis of completion and the data input pin 120 balanced traversals that are provided with, and could confirm optimized parameter: control module 50 control pseudo noise code transmitters 30 carry the signal of telecommunication of pseudo noise code to data output end 110 transmissions of its place test board; The corresponding pseudo noise code verifier 40 of control is done abnormality detection to 120 pairs of signals of telecommunication that receive of data input pin of its place test board, and concrete abnormality detection process is following:
Through high-speed digital signal cross board 80 is set; The data of the data output end 110 of first test board of permission send to the data input pin 120 of second test board; The equilibrium configuration of second test board is set; Through control channel 60, send instruction by second test board, carry out the configuration of different preemphasis values by first right data output end 110 port of test board to first test board; After the preemphasis configuration of each first test board is accomplished, second corresponding error rate result of pseudo noise code verifier 40 down that disposes of test board record; Accomplish the traversal of whole preemphasis configurations when first test board after, second test board is provided with next balanced configuration, sends the traversal that instruction to first test board begins preemphasis configuration for the second time once more; Up to accomplishing the traversal of all preemphasis with the combination of balanced configuration;
In the 4th step, second test board gathers the error rate result of all preemphasis and the pseudo noise code verifier 40 of balanced combination setting of disposing and correspondence; In all testing results, search the optimum efficient balance of the error rate, preemphasis configuration combination; It should be noted that there are the possibilities of organizing valid data or not having any valid data in effective record here more, then:
Exist under the situation of many group valid data:, from some groups of allocation optimums, select in the control module 50 that best configuration records test board through artificial screening;
Do not have under the situation of any valid data: corresponding high-speed bus physical characteristic can't satisfy the high-speed digital signal transmission demand, characterizes the fabric swatch failure;
The 5th step, detect under the situation that confirms all high-speed digital signal line transmission no problems, preserve the optimal data that obtains in the control module 50, supply subsequent development to use.
Test and relevant device parameter with high-speed digital signal plate in the Fonst4000 of the FONST of Fiberhome telecommunication product line, the Fonst5000 system are chosen as example, and concrete implementation step is:
The first step, high-speed digital signal plate 10 actual demands according in Fonst4000,5000 systems design corresponding test board;
In second step, the high-speed digital signal cross board that design is used in Fonst4000,5000 systems makes any high-speed digital signal partitioned signal line data input pin on the high-speed digital signal plate can be interconnected to any high-speed digital signal partitioned signal line data output end;
The 3rd step; Accomplish the control module design on the test board; Carry out the digital signal data input of test board, the traversal of combination of preemphasis and balanced configuration on the output port through control module, the error rate result who obtains corresponding pseudo noise code verifier 40 is as experimental result;
The 4th step, gather experimental result, judge whether high-speed digital signal plate fabric swatch satisfies the practical applications needs, promptly whether there is effective balanced preemphasis combination;
The 5th step, select the optimal data in the summarized results, supply follow-up exploitation to use; In the actual measurement process, do not find the situation that high-speed digital signal lost efficacy.
The content of not doing in this specification to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. one kind is detected the method that completion high-speed digital signal transmit-receive position is provided with coupling automatically, it is characterized in that its concrete steps are:
The first step; High-speed digital signal plate (10) to needs test high-speed digital signal line; Design corresponding test board (20): every test board (20) possesses pseudo-noise code generator (30) and pseudo noise code verifier (40); The data output end (110) of test board (20) is connected to pseudo-noise code generator (30), and the data input pin (120) of test board (20) is connected to pseudo noise code verifier (40);
Second step; Exploitation high-speed digital signal cross board (80): said high-speed digital signal cross board (80) is used to make the input signal on the arbitrary signal line data input pin (90) of high-speed digital signal plate (10), points to the arbitrary signal line data output end (100) of high-speed digital signal plate (10);
The 3rd step; Design control module (50); Control module (50) is used to accomplish the setting that test board (20) is gone up pseudo-noise code generator (30), pseudo noise code verifier (40); And can pass through control channel (60), realize mutual between the control module (50) of two test boards (20);
Control module (50) is accomplished all data output ends (110) preemphasis and the balanced traversal that is provided with of data input pin (120), so that confirm optimized parameter;
In the 4th step, second test board gathers the error rate result of all preemphasis and the pseudo noise code verifier (40) of balanced combination setting of disposing and correspondence; In all testing results, search the optimum efficient balance of the error rate, preemphasis configuration combination; When there are many group valid data in effective record or do not have the situation of any valid data, then:
Exist under the situation of many group valid data:, from some groups of allocation optimums, select in the control module (50) that best configuration records test board through artificial screening;
Do not have under the situation of any valid data: corresponding high-speed bus physical characteristic can't satisfy the high-speed digital signal transmission demand, characterizes the fabric swatch failure;
The 5th step, detect under the situation that confirms all high-speed digital signal line transmission no problems, preserve the optimal data that obtains in the control module (50), supply subsequent development to use.
2. the method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in automatic detection as claimed in claim 1; It is characterized in that: test a pair of high-speed digital signal and use pseudo-noise code generator of same test board (30) and pseudo noise code verifier (40); Or use two different test boards; Use the wherein pseudo-noise code generator of a test board (30), the pseudo noise code verifier (40) of another piece test board respectively.
3. the method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in automatic detection as claimed in claim 1; It is characterized in that: to the batch testing of whole high-speed digital signal plate (10); Then need use polylith test board (20); Adopt control channel (60) communication each other between each test board, each uses the pseudo-noise code generator (30) and the pseudo noise code verifier (40) of same test board to high-speed digital signal, or uses two different test boards; Use the wherein pseudo-noise code generator of a test board (30), the pseudo noise code verifier (40) of another piece test board respectively.
4. the method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in automatic detection as claimed in claim 1; It is characterized in that: data input pin (90) and data output end (100) use the paired setting of acquiescence: make the data that are sent to the data input pin (90) of high-speed digital signal plate from the data output end (110) of same test board; Sensing only needs a test board (20) to accomplish the detection of a pair of high-speed digital signal line corresponding to the data output end (100) of the high-speed digital signal plate of the data input pin (120) of this test board this moment.
5. the method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in automatic detection as claimed in claim 1; It is characterized in that: data input pin (90) and data output end (100) use the paired setting of acquiescence: make the data that are sent to the data input pin (90) of high-speed digital signal plate from the data output end (110) of a test board; Point to corresponding data output end (100); The data input pin (120) of the data input pin (120) that corresponding data output end (100) is connected for using in pairs with this data input pin (90) on another piece test board accomplished the detection of a pair of high-speed digital signal line this moment with two test boards (20).
6. the method that the high-speed digital signal transmit-receive position is provided with coupling is accomplished in automatic detection as claimed in claim 1; It is characterized in that: when control module (50) when confirming optimized parameter, control module (50) control pseudo noise code transmitter (30) sends to data output end (110) of its place test board and carries the signal of telecommunication of pseudo noise code; The corresponding pseudo noise code verifier (40) of control is done abnormality detection to the data input pin (120) of its place test board to the signal of telecommunication that receives, and concrete abnormality detection process is following:
Through high-speed digital signal cross board (80) is set; The data of the data output end (110) of first test board of permission send to the data input pin (120) of second test board; The equilibrium configuration of second test board is set; Through control channel (60), send instruction by second test board, carry out the configuration of different preemphasis values by first right data output end (110) port of test board to first test board; After the preemphasis configuration of each first test board is accomplished, second corresponding error rate result of pseudo noise code verifier (40) down that disposes of test board record; Accomplish the traversal of whole preemphasis configurations when first test board after, second test board is provided with next balanced configuration, sends the traversal that instruction to first test board begins preemphasis configuration for the second time once more; Up to accomplishing the traversal of all preemphasis with the combination of balanced configuration.
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| CN103970699A (en) * | 2014-05-23 | 2014-08-06 | 浪潮电子信息产业股份有限公司 | Method for debugging FPGA pre-emphasis equilibrium value |
| CN104184617A (en) * | 2014-08-12 | 2014-12-03 | 福建星网锐捷网络有限公司 | Method, device and system for configuring pre-emphasis for interconnection equipment and network device |
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| CN111159082A (en) * | 2018-11-07 | 2020-05-15 | 财团法人工业技术研究院 | Reconfigurable data bus system and method thereof |
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