SU613324A1 - Logic unit testing arrangement - Google Patents

Description

Dits Isoichnost 3 scheme for the down-to-and in the collective account is consistent; and about the city of NalOZ.

In the Lopichocon scheme, due to the presence of: unpredictability, various cases are possible. Finding; Signals of the signal L 3: Lazy OCELAPSE Sensh, which is due to the fact that a logical one is formed instead of logical zero. , and vice versa .

In the well-known device, the amp; the selector selector only allows those sirnals that satisfy the given Nporipa iMHO requirement | H -, m in amplitude. A sweet predator. It is written, in advance: are known) at least a logical value of the monitored signal. This may driesti, for example, to the fact that instead of the expected logical zero, Haastuiit has distorted ediHlItsa, and this leaprast will not be detected.

The purpose of the invention is to increase the completeness of the control.

The postfoot goal is achieved by the fact that a device has been entered into a block of form 11phos1n; and a reaction code, in particular, the inputs of the device h: through the block of nopOifOBbix elements, are connected to the first inputs of the formpikacirovani1 and reaction code. The second and second inputs of the timeliness selection unit are connected to the third trick of the control unit 1I to the five output 6vTOiKa opvr: active memory. The outputs of the block are timed, but the selections of CompoundInnan respectively with the input of the block of threshold elements and with the second input of the form block: i (roo:: and the reaction code, the output of which is connected to the second input of the NeuroSpar detection unit; bones.

The drawing shows an electrical circuit device.

The device contains a block / operative memory, an address zhommutatar 2, a block K 3 control, consisting of block 4 3: a d a ni a r after a slave and a block 5, set a time, a block 6 of a stimulating effect, consisting of a flea 7 form a loop code 1C01Mbi.natsy, generator 8 and number (block 5 of the creation of code-analogue, block / (9 switching stimulating warfare1 SpiA, blak 11 reveals 1; not 1c; P1p, av. cores, block 12 time1H10Y selection, block 13 analysis of inertia and logical scope | Work, block / threshold elements and block W code formation reaction and.

The block / operative memory serves for storing test information and is an interfering device with an arbitrary distance from: Tuo1m To the cells of the mi along the resres, specified by the list, mmutatOr.

The block 3 of the operation together with the block 6 temeration of the stimuli and the influence of the lestasis for forming and sending links to the controlled node Through the block 10 KOMiMyTauniH stimulating 1B-o.effects, recreating the real conditions of the function of the node.

Block 14 with | D9rzh1it steam-gas elements. Each of the control circuits is connected and the input of the A01 of the KOMiMyTaTOipioiM output signal. Odd lomera; pORO | gozikh elements .set up

on the top of the threshold value of the controlOL; 1-signal-a signal-a, even - on the low.

The i5 block | MI1zrozani reaction code contains a memory element with incoming ventilation controlled by the block B) of the belt selection; One input for each 1 pin of each type of output to the output of the corresponding odd, and the second through the output: r10 to the output of the clear threshold elements.

The time selection block 12 is intended for: nponp.a M; MiHoro onipoca output circuits of a loric knot tested in real conditions of its incorporation. This is the time distribution of the strobe: interrogation signals, which are formed in accordance with the test program to the description of the output circuits of the logical node and are linked to the Pregnant labels of the unit pack (equal).

The fault detection unit // is designed to establish the fact that the test object is faulty, the unit / fault analysis and logic processing for determining the 1 and setting the test mode.

The device works as follows.

The stimulating effects generation unit 6, by a command from the block / operative memory, generates a sequence of stimulating effects that come through the block W 1 coadmution: and to the object shrozerkk, while providing a check on the operating frequency of the test object, regardless of the speed of the operational unit Lac PaccMOT .piHM is the case when the unit code corresponds to the upper level of the potential mon-ala and the presence of a nm pulse, and n, ucc - the 11% HIGH level of the potential small signal and the absence of an amplitude. If a single controlled sipnal is located within the threshold, it is known for the polling impulse, from the unit 12 “belt synchronization, the output of the corresponding threshold element will appear, and“ the output of the black circuit will appear. null. If a zero signal is monitored iH it is on. It is output At the limits of the threshold parameters, then the output of the individual syphilis elements will be zero signals. Other com- bined signals at the outputs of the thresholds of the Elaments indicate the output of the monitored signal for log values or non-response & OILNAL's Bipe time of 1 TO the first value of WKO.

Block / 5 of the formation of the reaction code for si: the unit's block /.2 temporary se1.1cIfEs the -action of the 1К10нт1рол object in the Form M | NO, az) r d1Nogo code-A, which Licks into the block, // non-inequality detection. In this 1M block, the resulting reaction is compared with the reference one, coming through the block of the formation of code combinations from the operational block, PA1M. t1i.

When a radiation and reference reaction is received, a block of the optor memory emits an ant, p, a device for the formation of the next one, which he eats of stimulus stimuli.

In all cases, if the codes formed in blocks 15 and 7 are unmatched, the unit 13 for analyzing the cpumatics and logic processing determines the output circuits whose signals are out of threshold values and sets the mode for subsequent tests.

Taklm, a predefined device provides parametric signals, and controls for signals that improve the completeness of control nodes.

Form m u l a and 3 o b: p e e ek.

Us-projusto for control of optic nodes, which contains a troubleshooting unit, an | failure analysis block (for information and logic processing, an operative parameter block, an address switch, a control block, a gene block; P (And stimulating actions, a block of stimulating stimuli | of their actions, a block of threshold elements and a time selection block, the first output of the detection unit (Fault connected to the first inputs of the fault analysis and logic processing unit, the second input of which is connected to the first output address code mutator .a, the third input is connected to the first output of the RAM block, and the Output is connected to the input of the address chamber of the mutator, the second output of the “ei1SP” block (of equalities is connected to the first input of the operational block, the second input of which is connected to the second output of the address switch, the second and third outputs of the operational unit are connected to the second and second inputs of the control unit, the first "second outputs of which are connected to the first and second; the inputs of the stimulating generation unit, the third input of which is connected to the fourth output of the RAM block, the first output is connected to iie, pБЫ .М; input of the detection unit for troubles, the other three outputs through the switching unit of stimulating effects are connected to the outputs of the device, characterized in that, forming a reaction code, the inputs of the device through the block of threshold elements are connected to the first input of the block forming the reaction code, the first and second inputs of the temporary ice block are connected respectively to the third output of the unit pack with the fifth output of the operational unit, the outputs of the block in; the c-section belt are connected respectively; to the input of the block of threshold elements and to the second input of the formation block of the reaction code, the output of which is connected to the second input of the fault detection unit.

0 Sources of information. The right of understanding in the examination:

1. USSR Author's Certificate No. 46997: 1, .cl. G 06 F 1 1/00, 1973.

2. Authors certificateSSSR 5 No. 273342, cl. G 01 R 31/28, 1969.