CN108919086A - A kind of method and device based on 1553B bus circuit programming key assignments - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
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Abstract
A method of based on 1553B bus circuit programming key assignments, search for key assignments, repetition measurement key assignments, fine tuning key assignments, programming key assignments, repetition measurement programming key assignments sequence be followed successively by：Search for the key assignments of amplitude, search for the key assignments of rise and fall time, search for the key assignments of output symmetry, the key assignments of repetition measurement amplitude, finely tune the key assignments of amplitude, the key assignments of searching threshold, the key assignments of repetition measurement amplitude, the key assignments of repetition measurement rise and fall time, the key assignments of repetition measurement output symmetry, the key assignments of repetition measurement threshold value, the key assignments of programming amplitude, the key assignments of programming liter fall time, the key assignments of programming output symmetry, the key assignments of programming threshold value, the key assignments of the amplitude of repetition measurement programming, the key assignments of the rise and fall time of repetition measurement programming, the key assignments of the output symmetry of repetition measurement programming, the key assignments of the threshold value of repetition measurement programming.The invention also includes a kind of devices based on 1553B bus circuit programming key assignments.
Description
Technical field
The present invention relates to a kind of methods of 1553B bus circuit programming key assignments, are based on 1553B bus more particularly to one kind
The implementation method and device of circuit automatic antifuse programming key assignments.
Background technique
The advantages that 1553B bus circuit is fast, highly reliable with its speed is concerned by people, and navigates in weapon system, aviation
The fields such as it and modern national defense are with a wide range of applications.In recent years, adding with 1553B bus circuit production domesticization demand
By force, cost is reduced to it, raising testing efficiency proposes urgent demand.
However, 1553B bus circuit test parameter is more, and interrelated between parameter, the complexity of test is increased,
For parameters mainly based on manual testing, testing efficiency is relatively low at present, high expensive.In terms of antifuse programming key assignments search
Particularly evident, antifuse examination is related to 32 key assignments during writing, when these key assignments will affect the symmetry of circuit, rise and fall
Between, four parameter indexes such as amplitude, threshold value.Although each parameter corresponds to different key assignments, the change meeting of a parameter key assignments
The variation of other parameters is corresponding affected on, these work require manually to carry out after mass data is groped.1 is completed at present
The search and programming of 1553B bus circuit antifuse key assignments, take around the time that three people work at the same time 30 minutes.
Summary of the invention
The technical problem to be solved by the present invention is to：It has overcome the deficiencies of the prior art and provide a kind of based on 1553B bus electricity
The method of road programming key assignments.Firstly, giving an initial key assignments, which can ensure that functional 1553B circuit has amplitude defeated
Out, and also make searching algorithm be optimal effect, circuit function exception is indicated if without amplitude output.Secondly handle
The corresponding key assignments of four parameters scans for respectively in a certain order, after the completion of search, carries out repetition measurement to it, if discovery has
Index exceeds claimed range, then carries out corresponding fine tuning and repetition measurement, programming test is carried out if repetition measurement meets, if be unsatisfactory for
It is required that being then determined as the circuit that fails.The present invention also provides a kind of devices based on 1553B bus circuit programming key assignments simultaneously.
The object of the invention is achieved by the following technical programs：
A method of based on 1553B bus circuit programming key assignments, searching for key assignments, repetition measurement key assignments, fine tuning key assignments, programming key
Value, the sequence of repetition measurement programming key assignments are followed successively by：The key assignments for searching for amplitude searches for the key assignments of rise and fall time, search output pair
The key assignments of title property, the key assignments of repetition measurement amplitude finely tune the key assignments of amplitude, the key assignments of searching threshold, the key assignments of repetition measurement amplitude, on repetition measurement
Rise the key assignments of fall time, the key assignments of repetition measurement output symmetry, the key assignments of repetition measurement threshold value, the key assignments of programming amplitude, under programming rises
The key assignments of time, the key assignments of programming output symmetry, the key assignments of programming threshold value, the key assignments of the amplitude of repetition measurement programming, repetition measurement burning drop
The key assignments for the rise and fall time write, the key assignments of the output symmetry of repetition measurement programming, the key assignments of the threshold value of repetition measurement programming.
The above-mentioned method based on 1553B bus circuit programming key assignments, described search key assignments the specific steps are：
Step 1: setting initial key assignments, then initial key assignments is write in examination, then measures initial key assignments；If initial key assignments is big
In being equal to 10V, then step 2 is transferred to；Otherwise decision circuit dysfunction is transferred to step 3；
Step 2: the index request of the initial key assignments measured in step 1 and setting is compared；If measurement is first
Beginning key assignments is unsatisfactory for the index request of setting, then writes key assignments with dichotomy adjustment examination, the index request of setting is met until finding
Key assignments, be then transferred to step 3；Otherwise decision circuit failure or circuit are unqualified, are transferred to step 3；
Step 3: search key assignments terminates.
The above-mentioned method based on 1553B bus circuit programming key assignments, the method that key assignments is write in repetition measurement examination are：The key that will be searched
Value carries out examination and writes, and tests and judge whether output symmetry, rise and fall time, amplitude, threshold value are qualified respectively；If qualified,
It is then able to carry out programming work, otherwise determines that the circuit is unqualified.
The above-mentioned method based on 1553B bus circuit programming key assignments, the method for repetition measurement programming key assignments are：By to electricity to be measured
Road sends pumping signal, tests and judge whether output symmetry, rise and fall time, amplitude, threshold value are qualified respectively；If closed
Lattice, then programming work are completed, and otherwise determine that the circuit is unqualified.
The above-mentioned method based on 1553B bus circuit programming key assignments, initial key assignments is 0XBEFB5F7F in the step 1.
The above-mentioned method based on 1553B bus circuit programming key assignments, the initial key assignments of step 1 are 32, and amplitude is corresponding
B13-B18 therein, the position sequence that adjustment degree successively weakens is：B13,B15,B16,B17,B14,B18.
The above-mentioned method based on 1553B bus circuit programming key assignments, the initial key assignments of step 1 are 32, rise and fall
Time corresponds to B7-B12 therein, and position that adjustment degree successively weakens sequence is：B8,B7,B9,B10,B11,B12.
The above-mentioned method based on 1553B bus circuit programming key assignments, the initial key assignments of step 1 are 32, and output is symmetrical
Property corresponds to B1-B6 therein, and position that adjustment degree successively weakens sequence is：B1,B2,B3,B4,B5,B6.
The above-mentioned method based on 1553B bus circuit programming key assignments, the initial key assignments of step 1 are 32, and threshold value is corresponding
B19-B24 therein, the position sequence that adjustment degree successively weakens is：B19,B20,B21,B22,B23,B24.
The above-mentioned method based on 1553B bus circuit programming key assignments, each key assignments cofiring are write 5 times；It is burnt three times before wherein
Write voltage be 9V, the programming time be 3ms, circuit voltage 5V, after twice programming voltage be 9.5V, the programming time be 3ms,
Circuit voltage is 5.2V.
A kind of device based on 1553B bus circuit programming key assignments, for searching for key assignments, repetition measurement key assignments, fine tuning key assignments, burning
Write key assignments, repetition measurement programming key assignments, including main control computer, BT module, FM module, oscillograph and UUT module；The UUT module
Being includes circuit under test；
The main control computer be used to issue to BT module pumping signal instruction, issue to FM module examination write key value instructions,
It is instructed to oscillograph sending measuring pumping signal, main control computer acquires the data of oscilloscope measurement simultaneously；The BT module root
The pumping signal instruction issued according to main control computer, output drive signal is to the circuit under test in UUT module；The FM module root
Key value instructions are write according to the examination that main control computer issues, examination is exported and writes key assignments to the circuit under test in UUT module；The oscillograph root
The measurement pumping signal instruction issued according to main control computer, measures the pumping signal of the circuit under test in UUT module.
The present invention has the advantages that compared with the prior art：
(1) The present invention gives the operations of the implementation method based on 1553B bus circuit automation antifuse programming key assignments
Sequentially, key assignments, repetition measurement key assignments, programming key assignments, repetition measurement programming key assignments are specially searched for；
(2) present invention gives an initial key assignments, which can ensure that functional 1553B circuit has amplitude output, and
And also searching algorithm is made to be optimal effect；
(3) a kind of full-automatic key assignments search examination side of writing that present invention induction and conclusion on the basis of a large amount of practical experiences goes out
Method avoids the error generated in artificial test job, improves the reliability of test；
(4) the present invention relates to automation search test method complete entire circuit A, the search of channel B and programming about
It needs 10 minutes or so, relatively manually completing entire circuit A, the search of channel B and programming about needs 30 minutes, and efficiency improves 2 times
Left and right；Examination writes three people's cooperations of needs and completes search and programming work manually, automates the flat of test writing method after being embedded in improvement
Platform can control multiple devices simultaneously by 1 people, liberate manpower.The present invention largely reduce time cost and manually at
This.
Detailed description of the invention
Fig. 1 is the system block diagram that the implementation method of antifuse programming key assignments is automated the present invention is based on 1553B bus circuit；
Fig. 2 is the flow chart of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to implementation of the invention
Mode is described in further detail.
Fig. 1 is the system block diagram that the implementation method of antifuse programming key assignments is automated the present invention is based on 1553B bus circuit,
Wherein main control computer send instructions under realizing, the functions such as data communication, BT module (bus test module) for receive come it is autonomous
The instruction of computer is controlled, the instruction issued according to main control computer generates different pumping signals and gives UUT module (circuit under test
Unit module) on circuit under test；UUT module is the circuit module for including circuit under test and circuit under test peripheral components；FM mould
Block (antifuse programming module) is anti-fuse circuit pumping signal generation module, and FM module can receive what main control computer issued
Different examinations is write key assignments and exported to the circuit under test in UUT module by instruction, the instruction that FM module is issued according to main control computer.
Specific work process is written as example with the search examination of output symmetry key assignments and is illustrated, first during key assignments examination is write
The examination write command that first main control computer can issue a key assignments gives FM module, FM module key assignments be handed down in UUT module to
Slowdown monitoring circuit, after key assignments examination writes, main control computer will issue the measurement instructions such as output symmetry and give BT module, and BT module produces
To the circuit under test in UUT module, main control computer just controls oscillograph and completes circuit under test defeated raw corresponding pumping signal
Measurement under the pumping signal of symmetry out, and the data of oscillograph are acquired, output symmetry number of the main control computer to acquisition
According to being judged, if meeting the requirements, the key assignments examination for carrying out next parameter is write, and otherwise, presses dichotomy tune according to test result
Key assignments is write in whole examination next time, repeats the above steps.If requirement is not satisfied in the corresponding measurement result of all key assignments of dichotomy,
Determine that the circuit can not find the output symmetry key assignments met the requirements, circuit malfunction.
The key assignments test writing method phase with above-mentioned output symmetry is write in the key assignments examination of rise and fall time, amplitude, threshold parameter
Together, details are not described herein.
Search key assignments, repetition measurement key assignments, fine tuning key assignments, programming key assignments, repetition measurement programming key assignments sequence be followed successively by：Search for amplitude
Key assignments, search for the key assignments of rise and fall time, search for the key assignments of output symmetry, the key assignments of repetition measurement amplitude finely tunes amplitude
Key assignments, the key assignments of searching threshold, the key assignments of repetition measurement amplitude, the key assignments of repetition measurement rise and fall time, the key of repetition measurement output symmetry
Value, the key assignments of repetition measurement threshold value, the key assignments of programming amplitude, programming rise the key assignments of fall time, and the key assignments of programming output symmetry is burnt
Write the key assignments of threshold value, the key assignments of the amplitude of repetition measurement programming, the key assignments of the rise and fall time of repetition measurement programming, the output of repetition measurement programming
The key assignments of symmetry, the key assignments of the threshold value of repetition measurement programming.
Fig. 2 show the flow chart of the embodiment of the present invention, including specific implementation step is as follows：
(1) 32 initial key assignments are set, test magnitude parameters under the key assignments, the key assignments combined circuit parameter and people
Work test experience is set as：0XBEFB5F7F can guarantee algorithm search efficiency optimization and functional circuit one under the key assignments
Surely waveform generation is had.After initial value design, initial value key assignments is write in examination, measures its amplitude, if amplitude is less than 10V, the circuit function
Can be abnormal, stop search work, otherwise proves that the circuit basic function is normal, continues to execute step (2)；
(2) the search examination for carrying out amplitude key assignments is write；Measurement result and the progress of index request range under key assignments are write in difference examination
Comparison writes key assignments according to measurement result adjustment examination with dichotomy if unqualified, until finding the key assignments met the requirements, or time
It has gone through key assignments and has not found the key assignments met the requirements yet；If completing not find the amplitude key assignments met the requirements yet until searching for,
Determine the circuit malfunction, it is no to then follow the steps (3)；
(3) after finding the amplitude key assignments for meeting acceptance condition, the examination for carrying out rise and fall time key assignments is write, specific steps
It is identical as step (2)；
(4) after finding the rise and fall time key assignments for meeting acceptance condition, the examination for carrying out output symmetry key assignments is write, and is had
Body step is identical as step (2)；
(5) amplitude key assignments repetition measurement is carried out, it is otherwise, no if amplitude key assignments still in claimed range, thens follow the steps (6)
Amplitude key assignments is then re-searched for, determines that the circuit is unqualified if being still unsatisfactory for requiring；
(6) examination for carrying out threshold value key assignments is write, and specific steps are identical as step (2)；
(7) it needs to carry out the key assignments found the repetition measurement before programming before programming, i.e., is carried out with the final key assignments found
Examination is write, and the parameters such as output symmetry, rise and fall time, amplitude, threshold value is tested respectively, and determine whether it is qualified, if full
Foot requires, then carries out programming work, otherwise determine that the circuit is unqualified；
(8) after repetition measurement is met the requirements before key assignments programming, key value programming is carried out.Main control computer is sent to programming key assignments
FM module, FM mould at most carry out 5 programmings to every key assignments, and preceding programming condition corresponding three times is programming voltage 9V, circuit work
Make voltage 5V, after twice corresponding programming voltage be 9.5V, operating voltage 5.2V, if not yet low level after 5 programmings
0.4V is burnt hereinafter, programming of then stopping work, while corresponding key value programming being prompted to fail.If programming success, thens follow the steps
(9)；
(9) after key assignments programming success, need to carry out key assignments repetition measurement after programming.It is sent and is exported by main control computer
The tests such as symmetry, rise and fall time, amplitude, threshold value, which instruct, gives BT module, and BT module generates is activated to UUT module accordingly
On circuit under test, then main control computer by control oscillograph to circuit under test carry out output symmetry, rise and fall when
Between, the measurement of amplitude, threshold value, and determine whether measurement result meets the requirements, if the measurement result of four parameters is equal after programming
Meet acceptance condition, then the circuit successfully completes key assignments examination and writes programming work.Otherwise, it is determined that key assignments repetition measurement is unsatisfactory for qualified item
Part, circuit are unqualified.
Amplitude corresponds to B13-B18 in 32 key assignments, and the position sequence that adjustment degree successively weakens is：B13,B15,B16,
B17,B14,B18.According to sequential encoding adjusted, the seeking scope [A, B] of dichotomy algorithm is determined, the value of A, B are with two
The case where binary form is indicated, and the corresponding A value of minimum amplitude is all adjustment 000000, the corresponding B value of maximum amplitude are
All unregulated situation 111111.
Rise and fall time corresponds to B7-B12 in 32 key assignments, which can only adjust toward big, and adjustment degree successively weakens
Position sequence be：B8, B7, B9, B10, B11, B12 determine the seeking scope of dichotomy algorithm according to sequential encoding adjusted
[A, B], A are that 000000 corresponding rise and fall time is maximum, and B is that 111111 corresponding rise and fall times are minimum.
In 32 key assignments B1-B6 corresponding to symmetry, wherein B1 is that value is adjusted toward big direction, and B2-B6 is toward small
It adjusts, adjustment degree successively weakens.The seeking scope [A, B] of dichotomy algorithm, symmetry examination write before, with searched for amplitude, on
Key assignments after rising fall time carries out examination and writes, to determine the size of symmetric index, so that it is determined that seeking scope, if symmetry
Value is less than the lower limit of symmetry qualification indication range, then A is 000000, B 011111；If the value of symmetry is closed greater than symmetry
The upper limit of lattice indication range, then A is 100000, B 111111.
Threshold value corresponds to B19-B24 in 32 key assignments, and threshold voltage can only be toward ditty, and the position that adjustment degree successively weakens is suitable
Sequence is：B19,B20,B21,B22,B23,B24.According to sequential encoding adjusted, determine dichotomy algorithm seeking scope [A,
B], A is that 000000 corresponding threshold voltage is minimum, and B is that 111111 corresponding threshold voltages are maximum.
A kind of device based on 1553B bus circuit automation antifuse programming key assignments, for searching for key assignments, repetition measurement key
Value, programming key assignments, repetition measurement programming key assignments, including main control computer, BT module, FM module, oscillograph and UUT module；UUT module
Including circuit under test；
Main control computer, which is used to issue pumping signal instruction to BT module, issues to FM module examination writes key value instructions, to showing
The instruction of wave device sending measuring pumping signal, main control computer acquire the data of oscilloscope measurement simultaneously；BT module is according to master control meter
The pumping signal instruction that calculation machine issues, output drive signal is to the circuit under test in UUT module；FM module is according to main control computer
Key value instructions are write in the examination issued, export examination and write key assignments to the circuit under test in UUT module；Oscillograph is issued according to main control computer
Measurement pumping signal instruction, measure UUT module on circuit under test pumping signal.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (11)
1. a kind of method based on 1553B bus circuit programming key assignments, it is characterised in that：Search for key assignments, repetition measurement key assignments, fine tuning key
Value, programming key assignments, repetition measurement programming key assignments sequence be followed successively by：The key assignments for searching for amplitude, searches for the key assignments of rise and fall time, searches
The key assignments of rope output symmetry, the key assignments of repetition measurement amplitude finely tune the key assignments of amplitude, the key assignments of searching threshold, the key of repetition measurement amplitude
Value, the key assignments of repetition measurement rise and fall time, the key assignments of repetition measurement output symmetry, the key assignments of repetition measurement threshold value, the key assignments of programming amplitude,
Programming rises the key assignments of fall time, the key assignments of programming output symmetry, the key assignments of programming threshold value, the key of the amplitude of repetition measurement programming
Value, the key assignments of the rise and fall time of repetition measurement programming, the key assignments of the output symmetry of repetition measurement programming, the key of the threshold value of repetition measurement programming
Value.
2. a kind of method based on 1553B bus circuit programming key assignments according to claim 1, it is characterised in that：It is described
Search for key assignments the specific steps are：
Step 1: setting initial key assignments, then initial key assignments is write in examination, then measures initial key assignments；If initial key assignments is greater than etc.
In 10V, then step 2 is transferred to；Otherwise decision circuit dysfunction is transferred to step 3；
Step 2: the index request of the initial key assignments measured in step 1 and setting is compared；If the initial key of measurement
Value is unsatisfactory for the index request of setting, then writes key assignments with dichotomy adjustment examination, the key of the index request of setting is met until finding
Value, is then transferred to step 3；Otherwise decision circuit failure or circuit are unqualified, are transferred to step 3；
Step 3: search key assignments terminates.
3. a kind of method based on 1553B bus circuit programming key assignments according to claim 2, it is characterised in that：Repetition measurement
Try write key assignments method be：The key assignments searched is carried out examination to write, when testing and judge output symmetry, rise and fall respectively
Between, amplitude, threshold value it is whether qualified；If qualified, it is able to carry out programming work, otherwise determines that the circuit is unqualified.
4. a kind of method based on 1553B bus circuit programming key assignments according to claim 2, it is characterised in that：Repetition measurement
The method of programming key assignments is：By sending pumping signal to circuit under test, output symmetry, rise and fall are tested and judged respectively
Whether time, amplitude, threshold value are qualified；If qualified, programming work is completed, and otherwise determines that the circuit is unqualified.
5. a kind of method based on 1553B bus circuit programming key assignments according to claim 2, it is characterised in that：It is described
Initial key assignments is 0XBEFB5F7F in step 1.
6. a kind of method based on 1553B bus circuit programming key assignments according to claim 2, it is characterised in that：It is described
The initial key assignments of step 1 is 32, and amplitude correspond to B13-B18 therein, and position that adjustment degree successively weakens sequentially is：B13,
B15、B16、B17、B14、B18。
7. a kind of method based on 1553B bus circuit programming key assignments according to claim 2, it is characterised in that：It is described
The initial key assignments of step 1 is 32, and rise and fall time corresponds to position sequence B7-B12 therein, adjustment degree successively weakens
For：B8,B7,B9,B10,B11,B12.
8. a kind of method based on 1553B bus circuit programming key assignments according to claim 2, it is characterised in that：It is described
The initial key assignments of step 1 is 32, and output symmetry correspond to B1-B6 therein, and position that adjustment degree successively weakens sequentially is：
B1、B2、B3、B4、B5、B6。
9. a kind of method based on 1553B bus circuit programming key assignments according to claim 2, it is characterised in that：It is described
The initial key assignments of step 1 is 32, and threshold value correspond to B19-B24 therein, and position that adjustment degree successively weakens sequentially is：B19,
B20、B21、B22、B23、B24。
10. a kind of method based on 1553B bus circuit programming key assignments according to claim 1, it is characterised in that：It is each
Position key assignments cofiring is write 5 times；Wherein before three times programming voltage be 9V, the programming time be 3ms, circuit voltage 5V, after twice
Programming voltage is 9.5V, and the programming time is 3ms, circuit voltage 5.2V.
11. a kind of device based on 1553B bus circuit programming key assignments, for searching for key assignments, repetition measurement key assignments, fine tuning key assignments, burning
Write key assignments, repetition measurement programming key assignments, it is characterised in that：Including main control computer, BT module, FM module, oscillograph and UUT module；
The UUT module be include circuit under test；
The main control computer, which is used to issue pumping signal instruction to BT module, issues to FM module examination writes key value instructions, to showing
The instruction of wave device sending measuring pumping signal, main control computer acquire the data of oscilloscope measurement simultaneously；The BT module is according to master
The pumping signal instruction that control computer issues, output drive signal is to the circuit under test in UUT module；The FM module is according to master
Key value instructions are write in the examination that control computer issues, and export examination and write key assignments to the circuit under test in UUT module；The oscillograph is according to master
The measurement pumping signal instruction that control computer issues, measures the pumping signal of the circuit under test in UUT module.
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