CN103020357A - Checking method and device for circuit network topology matching - Google Patents
Checking method and device for circuit network topology matching Download PDFInfo
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Abstract
The invention relates to a checking method and device for a circuit network topology during a design process of a circuit schematic diagram. In order to overcome the defects of manual check for network topology matching in the circuit design, the invention discloses the checking method and device for the circuit network topology matching, so as to automatically check the network topology matching attribute of a signal in the circuit design. The checking method for the circuit network topology matching provided by the invention comprises the following steps: reading a circuit network table file; extracting a topological structure of a key to-be-checked network and traversing; searching for the quantity of power networks and/or local networks connected with the other ends of all discrete devices in each key to-be-checked network; and if two or more than two power networks and/or local networks exist, judging the network topology matching is in fault and checking all the key to-be-checked networks and then outputting a fault report. The checking device for the circuit network topology matching provided by the invention comprises a network topology reading module, a network topology searching module and a network topology matching checking module.
Description
Technical field
The present invention relates to the hardware circuit design technology, particularly inspection method and the device of circuit network topology in the hardware circuit principle figure design process.
Background technology
In hardware circuit design, the characteristic of the various aspects such as the level nature of necessary consideration signal, transmission range, driving force, signal integrity.So in hardware circuit principle figure design, most bus signals, clock signal, control signal etc. must be carried out the net mate design.Net mate comprises: move the coupling of power supply on the signal to, signal pulls down to the coupling on ground, the coupling of signal series connection.Fig. 1 ~ 14 show several typical net mate figure, and wherein Fig. 1 ~ 8 are the normal network topology of net mate, Fig. 9 ~ 14th, and net mate has problem.Wherein, Fig. 9 draws on the parallel resistance in the one-node network power supply coupling or drop-down the coupling and draw power coupling or drop-down ground match network topologies figure, and Figure 10 is that transmitting terminal is that the parallel resistance secondary repeats to draw power supply to mate or drop-down ground match network topologies figure in the chain-shaped network topology to receiving end; Figure 11 is that transmitting terminal is that resistance in series matching network in the chain-shaped network topology, parallel resistance secondary repeat to draw power supply coupling or drop-down ground match network topologies figure to receiving end; Figure 12 is that transmitting terminal is that resistance in series matching network in the chain-shaped network topology, parallel resistance repeat to draw power supply coupling or drop-down ground match network topologies figure for three times to receiving end; Figure 13 is that transmitting terminal is that resistance in series matching network in the chain-shaped network topology, parallel resistance repeat to draw power supply coupling or drop-down ground match network topologies figure for four times to receiving end; Figure 14 is that transmitting terminal is that N matching network of resistance in series, parallel resistance repeat to draw power supply coupling or drop-down ground match network topologies figure for N time in the chain-shaped network topology to receiving end.
After hardware circuit design is finished, for guaranteeing the correctness of network topology, must carry out matching check.Traditional network topology matching check method is exactly the instrument that utilizes circuit design software to carry, and chooses each signal network, utilizes the locating function of circuit design software to check these network topologies, judges artificially whether its coupling meets design requirement.If circuit is very complicated, the signal type that relates to is a lot, and hand sampling checks one by one usually, and is very time-consuming, and is easy to carelessness occur, causes the network topology mistake to check out, buries major design hidden danger.
Summary of the invention
Technical matters to be solved by this invention is exactly the shortcoming that exists for network topology coupling hand inspection in the circuit design, provides a kind of circuit network topology matching check method and device, the network topology matching of signal in the self-verifying circuit design.
The present invention solve the technical problem, and the technical scheme of employing is that circuit network topology matching check method comprises the steps:
The reading circuit net meter file is identified the electric power network in the described circuit meshwork list file, zone network and non-key network, the crucial examine network in the reading circuit net meter file except electric power network, zone network and non-key network;
Extract one by one described crucial examine topology of networks and travel through;
In the described crucial examine topology of networks process of traversal, search all discrete device other ends connect in each crucial examine network electric power network and/or the number of zone network, if any more than or equal to two electric power networks and/or zone network, judge that then this network topology coupling has problem, and after checking out all crucial examine networks, export problem report.
The present invention is by checking that the network that all discrete device other ends connect in the crucial examine network is the quantity of electric power network or zone network, judge whether to duplicate the coupling design, and it is carried out mark and warning, so that the parameter according to discrete device is calculated, get rid of the mistake of this net mate.
Concrete, described electric power network, zone network and non-key network are named appointment by the designer when circuit design.
Concrete, described non-key network comprises that one-node network, circuit design software generate network and the point-to-point network of name automatically.
Concrete, described discrete device is resistance or electric capacity.
Further, in described crucial examine topology of networks, search all discrete device other ends connect in the described crucial examine network electric power network and/or the number of zone network, as less than or equal to 1, judge that this key examine net mate is correct; As equal 2, judge that this key examine net mate has problem, mark warning in problem report; As greater than 2, judge that this key examine net mate has problem, marked erroneous in problem report.
Another object of the present invention also provides a kind of circuit network topology matching check device, and this device comprises network topology read module, network topology search module and network topology matching check module;
Described network topology read module, be used for the reading circuit net meter file, electric power network in the described circuit meshwork list file, zone network and non-key network are identified the crucial examine network in the reading circuit net meter file except electric power network, zone network and non-key network;
Described network topology search module, be used for extracting one by one described crucial examine topology of networks and traveling through, in described each crucial examine topology of networks, search electric power network that all discrete device other ends connect and/or the number of zone network;
Described network topology matching check module, be used for to judge electric power network that each all discrete device other end of crucial examine network connects and/or the number of zone network, if any more than or equal to two electric power networks and/or zone network, judge that then this network topology coupling has problem, and after checking out all crucial examine networks, export problem report.
Concrete, described electric power network, zone network and non-key network are named appointment by the designer when circuit design.
Further, described network topology matching check module also is used for, and the electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network judge that this key examine net mate is correct less than or equal to 1 the time; When the electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network equal 2, judge that this key examine net mate has problem, mark warning in problem report; The electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network judge that this key examine net mate has problem, marked erroneous in problem report greater than 2 the time.
Concrete, described non-key network comprises that one-node network, circuit design software generate network and the point-to-point network of name automatically.
Concrete, described discrete device is resistance or electric capacity.
The invention has the beneficial effects as follows, can be to moving the coupling of power supply in the signal topology to, the coupling that pulls down to ground is carried out self-verifying, the hidden danger of having avoided human negligence to cause.During the traversal circuit network, first circuit network is filtered, electric power network, zone network and non-key network are not listed network topology matching check scope in; Can improve traversal speed, improve checking efficiency.
Description of drawings
Fig. 1 is that transmitting terminal is without matching network figure in the point to point network topology to receiving end;
Fig. 2 is that transmitting terminal is resistance in series matching network figure in the point to point network topology to receiving end;
Fig. 3 is that transmitting terminal is to draw power supply coupling or drop-down ground matching network figure in the point to point network topology on the parallel resistance to receiving end;
Fig. 4 is that transmitting terminal is to draw power supply coupling or drop-down ground matching network figure in the point to point network topology on resistance in series matching network, the parallel resistance to receiving end;
Fig. 5 is that transmitting terminal is to draw power supply coupling or drop-down ground matching network figure in the star network topology on the parallel resistance to receiving end;
Fig. 6 is that transmitting terminal is to draw power supply coupling or drop-down ground matching network figure in the chain-shaped network topology on the parallel resistance to receiving end;
Fig. 7 draws power supply coupling or drop-down ground matching network figure on the parallel resistance in the one-node network;
Fig. 8 draws power supply coupling or drop-down ground matching network figure on resistance in series matching network, the parallel resistance in the one-node network;
Fig. 9 draws power supply coupling or drop-down ground matching network figure on the parallel resistance in the one-node network;
Figure 10 is that transmitting terminal is that the parallel resistance secondary repeats to draw power supply coupling or drop-down ground matching network figure in the chain-shaped network topology to receiving end;
Figure 11 is that transmitting terminal is that resistance in series matching network in the chain-shaped network topology, parallel resistance secondary repeat to draw power supply coupling or drop-down ground matching network figure to receiving end;
Figure 12 is that transmitting terminal is that resistance in series matching network in the chain-shaped network topology, parallel resistance repeat to draw power supply coupling or drop-down ground matching network figure for three times to receiving end;
Figure 13 is that transmitting terminal is that resistance in series matching network in the chain-shaped network topology, parallel resistance repeat to draw power supply coupling or drop-down ground matching network figure for four times to receiving end;
Figure 14 is that transmitting terminal is that N matching network of resistance in series, parallel resistance repeat to draw power supply coupling or drop-down ground matching network figure for N time in the chain-shaped network topology to receiving end;
Figure 15 is the circuit network topology matching check process flow diagram of the embodiment of the invention;
Figure 16 is the circuit network topology matching check apparatus structure block diagram of the embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, describe technical scheme of the present invention in detail.
In circuit design, circuit design software all can generate net meter file according to circuit network, net meter file is comprised of numerous network, each network topology can be according to its network characteristic define name, such as the define name of electric power network is: NET_NAME='Gp_3v3', ' Gp_2v5', ' Gp_1v2', ' Vdd', ' Vac' ....; The zone network define name is: NET_NAME='GND', ' PGND', ' AGND' ....; Non-key network define name is: NET_NAME=' N0000001', ' N0000002', ' N0000003' ... ..; Bus network define name: NET_NAME='SCL_OUT', ' SDA_OUT' ... .. etc.Circuit design software can generate named network automatically, also can specify name by the designer, such as electric power network and zone network etc.
The circuit network of embodiment of the invention topology matching check process flow diagram as shown in figure 15, concrete steps are as follows:
Because can identify electric power network, zone network and non-key network according to the title of network in the circuit meshwork list file,
The identification electric power network is such as NET_NAME='Gp_3v3', ' Gp_2v5', ' Gp_1v2', ' Vdd ', ' Vac' ....;
The identification zone network is such as NET_NAME='GND', ' PGND', ' AGND' ....;
Identify non-key network such as NET_NAME=' N0000001', ' N0000002', ' N0000003' ... ..NET_NAME='NC';
Except the above electric power network that identifies, zone network and non-key network, all be defined as crucial examine network, such as bus network, clock network and control network etc., and determine crucial examine network of network title and quantity.In general, non-key network comprises that one-node network, circuit design software generate network and the point-to-point network of name automatically.
In this step, travel through successively each crucial examine topology of networks, and the network that all discrete device other ends in this key examine topology of networks connect is judged; After all crucial examine topology of networks traversal end, the output problem report.
In a certain crucial examine topology of networks process of traversal, discrete device quantity N is less than or equal to 1 in searching this key examine topology of networks, referring to Fig. 1, Fig. 2, Fig. 3 and network topology shown in Figure 7, the network topology coupling of judging this network topology is normal, finishes this time to judge.Discrete device quantity N is greater than 1 the time in searching a certain crucial examine topology of networks, the network that one by one the described discrete device other end is connected is judged, judge whether the network that the discrete device other end connects in this network topology is electric power network or zone network, and electric power network or zone network that this discrete device connects are counted; After the electric power network that all discrete device other ends in the same crucial examine topology of networks are connected or zone network statistics are finished, count M, if the electric power network that all discrete device other ends connect and the quantity M=1 of zone network, referring to Fig. 4, Fig. 5, Fig. 6 and network topology shown in Figure 8, judge that then this net mate is correct, finish this time to judge; If M=2, referring to Fig. 9, Figure 10 and network topology shown in Figure 11, judge that then this key examine net mate has problem, mark warning in the problem report of output, read corresponding discrete device parameter, and power supply or the zone network title of the network that this discrete device node of record is corresponding in this problem newspaper; If M〉2, referring to Figure 12, Figure 13 and network topology shown in Figure 14, judge that then this key examine net mate has problem, marked erroneous in the problem report of output, read the discrete device parameter of corresponding node, and power supply or the zone network title of the network that this discrete device node of record is corresponding in this problem report.
Referring to Figure 16, another object of the present invention also provides a kind of said method of implementing, circuit network topology matching check device, and this device comprises network topology read module 1601, network topology search module 1602 and network topology matching check module 1603;
Described network topology read module 1601, be used for the reading circuit net meter file, electric power network in the described circuit meshwork list file, zone network and non-key network are identified the crucial examine network in the reading circuit net meter file except electric power network, zone network and non-key network;
Described network topology search module 1602, be used for extracting one by one described crucial examine topology of networks and traveling through, in described each crucial examine topology of networks, search electric power network that all discrete device other ends connect and/or the number of zone network;
Described network topology matching check module 1603, be used for to judge electric power network that each all discrete device other end of crucial examine network connects and/or the number of zone network, if any more than or equal to two electric power networks and/or zone network, judge that then this network topology coupling has problem, and after checking out all crucial examine networks, export problem report.Concrete, described network topology matching check module also is used for, and the electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network judge that this key examine net mate is correct less than or equal to 1 the time; When the electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network equal 2, judge that this key examine net mate has problem, mark warning in problem report; The electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network judge that this key examine net mate has problem, marked erroneous in problem report greater than 2 the time.
Claims (10)
1. circuit network topology matching check method is characterized in that, comprises the steps:
The reading circuit net meter file is identified the electric power network in the described circuit meshwork list file, zone network and non-key network, the crucial examine network in the reading circuit net meter file except electric power network, zone network and non-key network;
Extract one by one described crucial examine topology of networks and travel through;
In the crucial examine topology of networks process of traversal, search all discrete device other ends connect in each crucial examine network electric power network and/or the number of zone network, if any more than or equal to two electric power networks and/or zone network, judge that then this network topology coupling has problem, and after checking out all crucial examine networks, export problem report.
2. circuit network topology matching check method according to claim 1 is characterized in that described electric power network, zone network and non-key network are named appointment by the designer when circuit design.
3. circuit network topology matching check method according to claim 1 is characterized in that described non-key network comprises that one-node network, circuit design software generate network and the point-to-point network of name automatically.
4. circuit network topology matching check method according to claim 1 is characterized in that described discrete device is resistance or electric capacity.
5. each described circuit network topology matching check method according to claim 1-4, it is characterized in that, in described crucial examine topology of networks, search all discrete device other ends connect in the described crucial examine network electric power network and/or the number of zone network, as less than or equal to 1, judge that this key examine net mate is correct; As equal 2, judge that this key examine net mate has problem, mark warning in problem report; As greater than 2, judge that this key examine net mate has problem, marked erroneous in problem report.
6. circuit network topology matching check device is characterized in that, comprises network topology read module, network topology search module, network topology matching check module;
Described network topology read module, be used for the reading circuit net meter file, electric power network in the described circuit meshwork list file, zone network and non-key network are identified the crucial examine network in the reading circuit net meter file except electric power network, zone network and non-key network;
Described network topology search module, be used for extracting one by one described crucial examine topology of networks and traveling through, in each crucial examine topology of networks, search electric power network that all discrete device other ends connect and/or the number of zone network;
Described network topology matching check module, be used for to judge electric power network that each all discrete device other end of crucial examine network connects and/or the number of zone network, if any more than or equal to two electric power networks and/or zone network, judge that then this network topology coupling has problem, and after checking out all crucial examine networks, export problem report.
7. circuit network topology matching check device according to claim 6 is characterized in that described electric power network, zone network and non-key network are named appointment by the designer when circuit design.
8. circuit network topology matching check device according to claim 6 is characterized in that described non-key network comprises that one-node network, circuit design software generate network and the point-to-point network of name automatically.
9. circuit network topology matching check device according to claim 6 is characterized in that described discrete fitting is resistance or electric capacity.
10. each described circuit network topology matching check device according to claim 6-9, it is characterized in that, described network topology matching check module also is used for, the electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network judge that this key examine net mate is correct less than or equal to 1 the time; When the electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network equal 2, judge that this key examine net mate has problem, mark warning in problem report; The electric power network that connects when all discrete device other ends in the described crucial examine network and/or the number of zone network judge that this key examine net mate has problem, marked erroneous in problem report greater than 2 the time.
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| CN114861593B (en) * | 2022-05-31 | 2023-11-07 | 苏州浪潮智能科技有限公司 | Method, device, equipment and medium based on circuit topology checking schematic diagram network |
| CN117744580A (en) * | 2023-12-08 | 2024-03-22 | 沐曦科技(成都)有限公司 | Inspection report generation method, device, electronic equipment and storage medium |
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