JPH036747A - Designing method for electronic circuit using configurable electronic circuit board - Google Patents

Abstract

PURPOSE:To design an electronic circuit while testing the entire circuit by using a specific configurable electronic circuit board having high universal applicability. CONSTITUTION:A configurable electronic circuit board contains a regular array of module sockets 22 of the minimum unit to which the small programmable logical elements PLD 14A can be directly inserted. Then a board 20 where the terminals of sockets 22 are connected to each other via a simple wiring is included in the configurable electronic circuit together with a pin adaptor 34 for a CPU 30, a pin adaptor 38 for a large PLD 14B, a switching station SS adaptor 46, and a bypass adaptor 52 containing a fixed wiring 48 which secures merely the by pass connection among wirings. The adaptor 46 can perform the reconfiguration until a wiring is fixed between electronic circuit parts. Then the adaptor 46 is replaced with another type which can secure the direct connection between adaptor pins via a metal after the wiring is fixed. Thus it is possible to design an electronic circuit while performing a test of the entire circuit.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a method for designing an electronic circuit using a configurable electronic circuit board, and in particular, when designing a large-scale VLSI system using one or more chips or very large scale integrated circuits (VLSI). The present invention relates to an electronic circuit design method using a configurable electronic circuit board, which allows verification and testing of a system using an actual circuit.

[Conventional technology]

Generally, what takes time to design a VLSI system is
This is system verification and testing. The reason for this is that various simulations require a lot of computer time, and errors caused by modeling the actual circuit are a problem. In order to solve these problems, it has been proposed to perform system verification and testing using an actual circuit. To configure an actual circuit, for example, as shown in Fig. 27,
A central microprocessor (CPU) 10 chip, a large number of various general-purpose integrated circuits (ICs) 12 such as TTL, RAM, and ROM, and a very small number of programmable logic devices (PLDs) used for address decoding, etc. 14
It is conceivable to use, for example, a breadboard consisting of a one-board computer in which peripheral circuits consisting of the following are combined for each system design and placed on the system board 16 and wired by soldering using printed wiring or jumper wires. ing. However, if such a dedicated breadboard is made for each system, the product size is large and the amount of built-in logic circuits is large, so it takes a lot of time and money to make a breadboard equivalent to the system. However, when the system is changed, it is difficult to make corresponding corrections. In order to solve such problems, for example,
The 49831 is equipped with a memory element that defines the connection relationship between multiple logic devices, and by making the contents of the memory element rewritable from the outside, the internal wiring can be freely rearranged as needed to create various An electronic device is disclosed that is adapted to implement the logical functions of. Furthermore, Japanese Patent Application Laid-Open No. 63-50999 is equipped with a fuse that defines the connection relationship between a plurality of logic devices, and by making it possible to blow out the fuse from the outside, it is possible to freely configure the internal wiring as necessary. An electronic device is disclosed that is capable of performing various logical functions. In these electronic devices, sockets are arranged to install logic devices such as programmable read-only memory (PROM) and MSI, and wiring is attached to connect these sockets vertically and horizontally. Wiring replacement equipment is installed at each location, so any wiring can be replaced.

[Problem to be achieved by the invention]

However, since the wiring exchange device is not made into a socket, it is not possible to omit the wiring exchange device or install electronic components in the position of the wiring exchange device, and it is not possible to install electronic components in all sockets. For example, when configuring a one-board computer using a PLD, if it is a small general-purpose IC, a small PLD14A is required.
For example, if a large general-purpose IC or small PLDI4A is combined, a large PLD14B is required.There are cases where it is desired to mount and wire PLDs of various sizes on the same board and use them effectively, but conventional technology So, C.P.
Electronic circuit components of different sizes that do not fit into normal sockets, such as U or large-scale PLDs, cannot be installed, and furthermore, the positions of the electronic circuit components and the wiring exchange device are fixed, making it difficult to mount them with respect to each other. This has the problem that it cannot be changed, and therefore it has not been possible to realize an arbitrary circuit. Furthermore, Japanese Patent Laid-Open No. 56-26269 discloses a test method for an electric circuit consisting of an electronic element including a logic integrated circuit that is detachably attached to a socket, in which a pseudo body of the logic integrated circuit is attached to the socket instead of the logic integrated circuit. It is disclosed that a characteristic test is performed based on the characteristics. However, this testing method can only test peripheral circuits other than the logic integrated circuit, and cannot test all circuits including the logic integrated circuit. In addition, when using a breadboard like the one mentioned above, when wiring connections are made using a transfer gate whose configuration can be easily changed, the system clock cannot be increased due to the delay, resulting in a delay compared to the completed system. There was also the problem that the amount was large. In order to solve this problem, Japanese Patent Application Laid-Open No. 63-234174
discloses cooling the system, but it requires a cooling device and has the problem that the device becomes large-scale. The present invention was made in order to solve the problem of the conventional U point, and allows electronic circuit components of any size to be placed at any position, and the position of the electronic circuit component and the position of the wiring determining means can be adjusted. All circuits can be built using extremely versatile configurable electronic circuit boards that can be replaced and even function in some locations where electronic components or wiring decisions are not available. The first objective is to provide a method for designing an electronic circuit that can be designed while conducting tests. A second object of the present invention is to provide a method for designing an electronic circuit using a configurable electronic circuit board that eliminates the problem of delays caused by transfer gates in the latter stages of design when wiring between electronic circuit components has been finalized. This will be the subject of this study. A further object of the present invention is to provide a method for designing an electronic circuit using a configurable electronic circuit port that allows easy identification of the types and positions of electronic circuit components and adapters mounted on a module socket. 3 issues.

[Means for achieving the object 1] The present invention provides a method for designing an electronic circuit using a configurable electronic circuit board, in which a large number of module sockets each having a standardized size and a minimum number of pins are regularly arranged side by side, a board in which the terminals of the module socket are connected by simple wiring; an adapter socket having a size that is a natural number multiple of the module socket and into which an adapter pin and an electronic circuit component can be inserted; and a pin adapter having socket wiring connecting the adapter socket and the adapter pin, an adapter pin that is a natural number multiple of the size of the module socket and that can be inserted into the module socket, and a wiring connection between the adapter pins. a switching station adapter having a wiring determining means for determining a switching station; A configurable electronic device that is equipped with a bypass adapter that has fixed wiring that simply bypasses and connects adapter pins, and that allows any circuit to be realized by inserting each adapter or electronic circuit component into any module socket. Using a circuit board, steps 110-120 and 140- of FIG.
As shown in step 144, necessary adapters or electronic circuit components are selectively combined and mounted on the module sockets on the board, and electronic circuit components that require internal circuit configuration and the switching station adapter are mounted. By configuring the getter, you can realize and verify the designed circuit, and when it becomes necessary to change the wiring between electronic circuit components, you can change the position of the adapter or electronic circuit components, or change the position of the switching station adapter. Verify the designed circuit while responding by changing the configuration, and when a circuit change is required, verify the designed circuit while responding by changing the type of electronic circuit component or changing the configuration. This achieved the first task. The module socket can be used to accept electronic circuit components of standard size and pin count without using the pin adapter.
The size and number of pins allow direct insertion. The present invention further provides steps 110, 130-1 of FIG.
As illustrated in 34, the switching station adapter used is one that can be reconfigured until the wiring between the electronic circuit components is determined, and after the wiring between the electronic circuit components is determined, the switching station adapter is used to connect between the adapter pins. The second problem was achieved by replacing it with something that could be connected directly with metal and verifying it. Further, the switching station adapter, which can be directly connected between the adapter pins with metal, may be burnt out using a programmable shaft or a laser trimmer, a fuse may be burnt out, or a voltage may be applied to make the switching station adapter electrically low in resistance. It is intended to be used for one-time configuration. The present invention also provides means for detecting the type of electronic circuit component or adapter inserted in the module socket,
The third problem is achieved by making it possible to identify the type and position of the electronic circuit component or adapter at the same time as the electronic circuit component or adapter is inserted. [Operations and Effects] The present invention is designed using a board in which a large number of module sockets of a standardized size and minimum number of pins are regularly arranged side by side, and the terminals of the module sockets are connected by simple wiring. I am trying to realize the circuit. Therefore, in the initial stage of design, electronic circuit components, pin adapters, switching station adapters, and bypass adapters of the size of the module socket or a natural number multiple thereof are selectively combined and mounted on the module socket of the board, and By configuring electronic circuit components such as PLDs and switch station adapters that require internal circuit configuration, any designed circuit can be realized without being limited to the size and position of electronic circuit components, wiring determination means, and all components. can do. Therefore, using the configurable electronic circuit board, the entire circuit can be designed while being tested. Here, the pin adapter is, for example, a central processing unit, P
It is equipped with an adapter socket into which an electronic circuit component such as an LD can be inserted, and a socket wiring that connects the terminal of the adapter socket and the adapter pin, and the size is set to one natural number of the module socket according to the size of the electronic circuit component. ing. Further, the switching station adapter includes adapter pins that can be inserted into module sockets, and wiring determining means for determining wiring connections between the adapter pins, and is used to determine wiring and wiring connections between the module sockets. It will be done. Further, the bypass adapter includes an adapter pin that can be inserted into a module socket, and a fixed wiring that bypass-connects the adapter pins to the sheep, and is inserted into an unused module socket to bypass-connect the upper, lower, left, and right wiring. used for. Therefore, by making the size of the pin adapter a natural number times the size of the module socket in accordance with the size of the electronic circuit component, electronic circuit components of any size can be used without being limited to the size of the module socket. Can be placed on the board. In particular, if the module socket is an electronic circuit product with the original vehicle size and pin count, ρj is a small PL.
If D has a size and number of pins that can be directly inserted without using the pin adapter, the pin adapter for small PLDs can be omitted and the number of adapters used can be reduced. Moreover, not only the pin adapter but also the switching station adapter and the bypass adapter can be inserted into any module socket, so the degree of freedom in the circuit is extremely high. Furthermore, since it includes a bypass adapter that is inserted into an unused module socket, it is not necessary to arrange all electronic circuit components on the board, and even a small system can be constructed. In addition, as the switching station adapter, use one that can be reconfigured until the wiring between electronic circuit components is determined, and after the wiring between electronic circuit components is determined, connect the adapter pins directly with metal. If you replace it with something that is possible and verify it, you can solve the 1:I problem of delay caused by the transfer gate and increase the system clock etc. in the latter stage of the design.
This makes it possible to perform high-speed operation and verification at a speed close to that of the completed system. The switching station adapter that can directly connect the adapter pins can be made using a programmer pull shaft, a method of burning out a fuse with a laser trimmer, a method of burning out a fuse, a method of applying a voltage to make the electrical resistance low, etc. , well-known devices (electronic circuit products) that perform one-time configuration can be used. Further, when the module socket is provided with means for detecting the type of electronic circuit component or adapter inserted,
The type and position of the electronic circuit component or adapter can be identified at the same time as the electronic circuit component or adapter is inserted, and the work of inputting the electronic circuit component or adapter anew into the development tool can be omitted.

【Example】

Embodiments of the present invention will be described in detail below with reference to the drawings. A first embodiment of the configurable electronic circuit board used in the present invention is a small PLD as shown in FIGS.
A large number of module sockets 22 of the minimum size and pin count into which 14A can be directly inserted are regularly arranged side by side, and the terminals 24 of the module sockets 22 are connected by simple wiring (in the example, the vertical direction and horizontal direction in FIG. The board 2o is connected to the board 2o by a wiring 26) in the direction shown in FIG. A CPU pin adapter 34, a large PLD pin adapter 38 having an adapter socket 36 that is a natural number times the size of the module socket 22 (four times in this embodiment) into which the large PLD 14B can be inserted, and the module socket. Natural number times 22 (1 times in the example)
an SS adapter 46 having a wiring determining means (switching station) (SS) 44 for determining wiring connections between the module sockets 22;
Natural number times the module socket 22 (1 in the embodiment)
A bypass adapter 52 having the size of ＠) is inserted into an unused module socket and has a fixed wiring 48 that simply connects the upper and lower, left and right wiring by bypass,
Small PLD14A or each adapter 34.38.46.52
By inserting this into any module socket 22, any computer circuit can be realized. Although not shown in FIG. 2, the adapter in which each module socket 22, large PLD 14B, switching station 44, and other electronic circuit components that require internal circuit configuration is equipped with a fourth As shown in the figure, a pin 54 for configuring the internal circuit is provided in addition to the normal adapter pin 56. The board 20 includes a small PLD, as shown in detail in FIG.
A large number of module sockets 22 of the minimum size and pin count into which 14A can be directly inserted are regularly arranged side by side, and the terminals 24 of the module sockets 22 are connected by simple wiring 26. In addition, the terminals on the peripheral portion are connected to 1 of the board 20.
．． 10 is connected to boat 21. Here, the reason why the module sockets 22 are connected to each other by simple wiring 26 in the vertical and horizontal directions is that the wiring between each terminal 24 is
This is because configuration can be performed using the switching station 44 mounted on the SS adapter 46, the small PLD 14A, the large PLD 14B mounted on the pin adapter 38, and the like. The large PLD pin adapter 38 is for mounting a large PLD 14B, medium PLD, etc. that cannot be directly inserted into the module socket 22, so as shown in detail in FIG.
8A, an adapter socket 38B into which, for example, a large PLD 14B can be inserted, and socket wiring 38D that connects the terminal 38C of the adapter socket 38B and the adapter pin 38A. The adapter pin 38A is
They are arranged to match the positions of the holes in the module socket 22, and as shown in FIG. 6, one large PLD pin adapter 38 can be mounted using, for example, four module sockets 22. ing. The SS adapter 46 has an adapter pin 4 that can be inserted into the module socket 22, as shown in detail in FIG.
6A and a switching station 44 for determining wiring connections between the adapter pins 46A;
By configuring the switching station 44, connections in each direction (N, W, S, E) can be configured. As the switching station 44, a transfer gate 60 provided between the source pin S and the load pin L can be used, for example, as shown in the circuit shown in FIG. 8, until the wiring at the initial stage of the design is determined. In this case, reconfiguration is possible after determining the wiring connections. Note that if all directions of N, W, S, and E are programmable, two or more transfer gates, in this case three, are connected between the source pin S and the load pin L, as shown in FIG. 9, for example. 60A, 60B, 60C
f! -Can be provided. Furthermore, after the wiring in the latter half of the design is finalized, the switching station 44 may be provided with a fuse 62, for example, as shown in FIG. 10, instead of a transfer gate. In this case, if you burn out the -degree fuse 62 and configure, later changes will not be possible, but since the transmission delay when using a transfer gate will be eliminated, the delay of the transfer gate will increase the system clock. This prevents problems from occurring on the system and enables verification at high-speed operation close to that of the completed system. Note that wiring determining means that can directly connect the source pin S and the load pin L with metal without using a transfer gate is not limited to the above-mentioned fuse.
It is possible to use a programmable shunt as disclosed in Japanese Patent No. 16556, to burn it out with a laser trimmer, or to apply a voltage opposite to the fuse to make it electrically low in resistance. Of course, if it is desired to make all wiring directions programmable, it goes without saying that a large number of fuses 62 and the like may be used in correspondence with the number of gates, as in the example shown in FIG. Further, as shown in detail in FIG. 11, the bypass adapter 52 has two layers in the vertical and horizontal directions, and has an adapter pin 52A that can be inserted into the module socket 22, and a bypass connection between the adapter pins 52A. The fixed wiring 48 can be inserted into an unused module socket 22 to connect vertical and horizontal wiring independently. By using this bypass adapter 52, even a relatively small system can be realized without disposing PLDs in all module sockets 22. Hereinafter, with reference to FIG. 1, the procedure of the method for designing an electronic circuit according to the present invention using the first embodiment of the configurable electronic circuit board shown in FIG. 2 will be explained in detail in (d). When designing an electronic circuit according to the invention, first, in step 110, necessary adapters and electronic circuit components (small PLD 14A>) according to the designed circuit are combined and mounted in the module socket 22 on the board 20. As the SS adapter 46, it is preferable to use one that uses a transfer gate and is reconfigurable, as shown in FIGS. 8 and 9. Next, in step 112, the internal circuit is By configuring the PLDs 14A, 14B and the SS adapter 46 that require configuration, a circuit at the initial stage of the design is realized and verified in step 114.For example, a configuration using a general-purpose IC and not including a PLD is possible. In the case of a flexible electronic circuit board, PLD configuration is not necessary.Also, when it becomes necessary to change the wiring between electronic circuit components due to verification results etc. (step 116), step 118
Then, in step 120, the designed circuit is re-verified while changing the position of the adapter or small PLDI 4A or changing the configuration in the SS adapter 46. When the wiring between electronic circuit components is confirmed (step 130)
In step 132, the SS adapter 46 is replaced with one that can directly connect the adapter pins with metal using, for example, a fuse, as shown in FIG. We will verify the designed circuit that has become possible. Also, when it becomes necessary to change the circuit due to verification results, etc.
Step 140) is handled by changing the type of the electronic circuit component in step 142 or changing the configuration when a PLD is used, and verified in step 144. As a result of the verification, when there is no problem in the end (step 146)
At step 148, the entire circuit is determined and the design is completed. On the other hand, if there is a problem, go back to the necessary steps and redesign the design (step 150). In this embodiment, a reconfigurable SS adapter is used as the SS adapter 46 until the wiring between the electronic circuit components in the first half of the design is finalized, and after the wiring in the second half of the design is finalized. Since the pins are replaced with those that can be directly connected with metal, the wiring can be easily changed until the wiring is finalized. On the other hand, after the wiring has been determined, an operation test can be performed at high speed without being affected by transfer gate delays or the like. In addition, since the SS adapter 46 according to the present invention is easy to replace, it is possible to use one that allows direct metal connection between the adapter pins from the initial stage of design, and when it becomes necessary to change the wiring, If it becomes necessary to further change the wiring after the wiring has been determined, it can be done by replacing the SS adapter 46. In addition, the above embodiments explain the present invention as shown in FIG.
Although the present invention was applied to a one-board computer mainly including a CPU 30, a large PLD 14B, and a small PLD 14A, the scope of application of the present invention is not limited to this, and the invention can be applied to a one-board computer that mainly includes a CPU 30, a large PLD 14B, and a small PLD 14A. As shown in the second embodiment, the CP is four times the size of the module socket.
For example, a standard-sized O
Italy 4 equipped with 8C pin adapter 74 and dynamic random access memory (DRAM>76)
Double size DRAM pin adapter 78 and peripheral circuit 8
For example, a quadruple size peripheral circuit pin adapter 82 equipped with a D.0, the CPU pin adapter 34, and the D.
RAM pin adapter 78, peripheral circuit pin adapter 8
The present invention can also be applied to a configuration using, for example, a double size SS adapter 46 and a standard size SS adapter 46 disposed between the two. The configurable breadboard of the second embodiment can be used to construct a one-board computer or to develop fully custom chips such as a 64-bit microcomputer or a fuzzy chip. It is also possible to apply the present invention to a PLD circuit system board that does not include a CPU, as in the third embodiment shown in FIG. In this third embodiment, the internal circuit of the PLD is expanded to the same level as the board, so the SS adapter 46 and the small PLD 14A are
As shown in FIG. 13, they are regularly arranged on the board 20 in a houndstooth pattern. Note that the arrangement of the SS adapter 46 and the small PLD 14A is not limited to this, and may be arranged randomly if the user desires.
It can also be configured with only the D14A and/or the large PLD 14B. In this embodiment, the CPU is not included, but the PL
It is suitable for configuring a macro programmable circuit with a D array, and a CPU is configured with the PLD,
It is also possible to use it as a one-board computer. In addition, in the above embodiments, both small PLDs 14
Although A can be inserted directly into the module socket 22, a pin adapter for the small PLD 14A may also be used. Next, a fourth embodiment of the configurable electronic circuit board used in the present invention will be described in detail with reference to FIG. In the fourth embodiment, in a configurable electronic circuit board similar to the first embodiment, for example, five switch holes 9 are provided in the center of each module socket 22.
0, and a rod-shaped dog 92, for example, which is inserted into the switch hole 90, is provided on the bottom surface of the adapter, for example, the bypass adapter 52, as shown in FIG. , a switch contact 9 that is turned on and off by the dog 92.
4 is input to the development tool 96 via the I10 port 21 of the board 20, thereby making it possible to identify the type and position of the adapter inserted into the module socket 22. For example, in the case of the bypass adapter 52, one dog 92 is provided in the center of the bypass adapter 52, as shown in FIG.
Further, in the case of the SS adapter 46, two can be provided for identification, as shown in FIG. 16, for example. Further, as shown in FIG. 17, the small PLD 14, A is not provided with the tongue 2 and the part in which the dog 92 is not provided can be determined to be a small PLD. Here, small PL
The reason why the dog 92 is not attached to D14A is because the small PLD 14A that is directly inserted into the module socket 22 becomes a product as it is. Note that when the small PLD 14A is inserted into the board 20 via a standard size pin adapter, the small PLDI 4A can also be detected by providing the dog 92 on the pin adapter. In addition, in the case of the large PLD pin adapter 38, the first
As shown in Section 8, dogs 92 can be provided at multiple locations on the pin adapter 38.6For example, in the case of a quadruple-sized pin adapter 38, dogs 92 can be provided at four locations, so the mounting direction must also be identified. I can do it. In this way, by notifying the configuration software of the development tool 96 of the PLD configuration on the board 20, the PLD configuration can be quickly and reliably input to the development tool 96. In the above embodiment, a rod-shaped dog 92 was provided on the bottom of each adapter, but it is possible to determine whether the adapter is attached or not by using an unused pin of a pin adapter, etc., without providing the dog 92. It is. Next, a fifth embodiment of the configurable electronic circuit board used in the present invention will be described in detail with reference to FIGS. 19 to 22. This fifth embodiment uses a board 20 similar to the first embodiment described above.
In addition to the surface wiring 26 (see FIG. 20) that connects the terminals 24 of adjacent module sockets 22,
A lower layer wiring 100 (see FIG. 21) for directly connecting the separated terminals of the module socket 22 via a pass line (O-line), and a lower layer wiring 100 (see FIG. 21) between the terminals 24 of the module socket and the surface wiring 26 or the lower layer wiring 100. It is equipped with a wiring changeover switch 104 (see FIG. 22) for selectively connecting one of them. In this fifth embodiment, the SS adapter 46 is the 23rd
As shown in the figure, connect any wiring 26 on the surface layer of the board to the SS
Vertical/horizontal pass line at the bottom of the adapter 46 (
100). According to the fifth embodiment, a long line such as a pass line can be constructed by using the lower wiring 100, and wiring is easy.The switching information of the wiring changeover switch 104 is
As in the embodiment, some switching position identification means can be input to the development tool 96. Next, a sixth embodiment of the configurable electronic circuit board used in the present invention will be described in detail. In this sixth embodiment, in order to save the area of the board 20,
As shown in FIG. 24, each adapter is independently provided with a pin 110 dedicated to the surface layer and a pin 112 dedicated to the lower layer (bus), and a second pin 112 is provided in the module socket 22 correspondingly.
As shown in detail in FIG. 5, holes are provided to receive the surface layer exclusive pin 110 and the lower layer exclusive pin 112 independently, and thereby, as shown in FIG. 26, the surface layer exclusive pin 110
and lower layer exclusive pins 112 can be independently connected to the surface layer wiring 26 and the lower layer wiring 100, respectively. In this sixth embodiment, the same S as in the first embodiment is used.
In the S adapter 46, the selection states of the surface layer wiring and lower layer wiring are also configurable. In this embodiment, the independent wiring changeover switch 104 as in the fifth embodiment is not required, and the wiring state of the surface wiring 26 and the lower wiring 100 is also different from that of the SS adapter 46.
The connection information can be easily input into the development tool 96. Note that in the fifth and sixth embodiments, a configuration using two-layer wiring was combined with the first embodiment, but the scope of application of this configuration is not limited to this, and for example, a configurable structure that does not include a bypass adapter. It is clear that it can be applied to electronic circuit boards as well.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing the steps of an embodiment of a method for designing an electronic circuit using a configurable electronic circuit board according to the present invention, and FIG. 2 shows a first embodiment of a configurable electronic circuit board used in the present invention. FIG. 3 is a plan view showing the shape of the main parts of the board of the first embodiment; FIG. 4 is a plan view showing the actual state of each adapter of the first embodiment. , FIG. 5 is a perspective view showing the shape of the large PLD pin adapter of the first embodiment, FIG. 6 is an explanatory diagram for explaining the method of inserting this large PLD pin adapter into the board, and FIG. 11 is a plan view showing the configuration of the switching station<SSSS adapter of the first embodiment, FIGS. 8 to 10 are circuit diagrams showing examples of the internal structure of the SS adapter, and FIG. An explanatory diagram for explaining the configuration of the bypass adapter and the state of attachment to the board; FIG. 12 is a plan view showing a second embodiment of the configurable electronic circuit board used in the present invention; FIG. Similarly, FIG. 14 is a plan view showing the configuration of the main part of the board of the fourth embodiment, and FIG. 15 is a plan view of the bypass adapter of the fourth embodiment and its connection to the board. 16 is a side view showing the shape of the SS adapter of the fourth embodiment; FIG. 17 is a side view showing the shape of the small PLD; FIG. 18 is the same for the large PLD. FIG. 19 is a cross-sectional view showing a pin adapter and a method for attaching it to the board; FIG. 19 is a plan view showing the main part configuration of the fifth embodiment of the configurable electronic circuit board used in the present invention; FIG. Similarly, FIG. 21 is a cross-sectional view showing the condition of the surface layer wiring, FIG. 22 is a cross-sectional view similarly showing the configuration of the wiring changeover switch, and FIG. 23 is the same cross-sectional view showing the configuration of the SS adapter. Plan view shown, No. 24
The figure is a perspective view showing the main part configuration of the adapter of the sixth embodiment of the configurable electronic circuit board used in the present invention, FIG. 25 is a plan view showing the configuration of the module socket, and FIG. 26 is the same. 14A... Small-scale programmable logic element (small PLD)
), 14B...large scale programmable logic element (large PLD
), 20... Board, 22... Module socket, 24... Terminal, 26.100... Wiring, 30... Central processing unit (CPU), 32.36.
...Adapter socket, 34...Pin adapter for CPU, 38...Pin adapter for large PLD, 44...Switching station (SS), 46...
...SS adapter, 48...Fixed wiring, 52...Bypass adapter, 72...System clock oscillator (O3C), 74...
・・Pin adapter for O8C, 76...Dynamic random access memory (DR
AM), 78... Pin adapter for DRAM, 80... Peripheral circuit, 82... Pin adapter for peripheral circuit, 90... Switch hole, 92... Dog, 94... Switch contact.

Claims (8)

[Claims] (1) When designing an electronic circuit, a board in which a large number of module sockets of a standardized size and minimum number of pins are regularly arranged side by side, and the terminals of the module sockets are connected by simple wiring, and the module A pin adapter having a size that is a natural number times the size of the socket and having an adapter pin that can be inserted into the module socket, an adapter socket that can insert an electronic circuit component, and socket wiring that connects the adapter socket and the adapter pin; A switching station adapter that is a natural number times the size of a module socket and has adapter pins that can be inserted into the module socket, wiring determination means for determining wiring connections between the adapter pins, and an unused module socket. a bypass adapter having an adapter pin that is a natural number times the size of the module socket and that is insertable into the module socket; Selectively combine each necessary adapter or electronic circuit component using a configurable electronic circuit board that can realize any circuit by inserting the adapter or electronic circuit component into any module socket. The designed circuit is realized and verified by mounting it on the module socket on the board and configuring the electronic circuit components that require internal circuit configuration and the switching station adapter. When it becomes necessary to change the wiring between the switching station adapter and the switching station adapter, verify the designed circuit by changing the position of the adapter or electronic circuit components, or changing the configuration within the switching station adapter, and make sure the circuit changes are made. A method for designing an electronic circuit using a configurable electronic circuit board, characterized in that the designed circuit is verified by changing the type or configuration of the electronic circuit components when necessary. (2) In claim 1, the module socket:
A method for designing an electronic circuit using a configurable electronic circuit board, characterized in that the size and number of pins allow electronic circuit components of standard size and pin number to be directly inserted without using the pin adapter. (3) In claim 1, the switching station adapter is one that can be reconfigured until the wiring between the electronic circuit components is determined, and after the wiring between the electronic circuit components is determined, A method for designing an electronic circuit using a configurable electronic circuit board, characterized in that adapter pins are replaced with ones that can be directly connected with metal and verified. (4) According to claim 3, the switching station adapter in which the adapter pins can be directly connected with metal,
A method for designing an electronic circuit using a configurable electronic circuit board, characterized in that configuration is performed only once using a programmer pull shaft. (5) According to claim 3, the switching station adapter in which the adapter pins can be directly connected with metal,
1. A method for designing an electronic circuit using a configurable electronic circuit board, characterized in that configuration is performed only once by burning out with a laser trimmer. (6) In claim 3, the switching station adapter allows direct metal connection between the adapter pins,
A method for designing an electronic circuit using a configurable electronic circuit board, characterized in that configuration is performed only once by using a method of burning out fuses. (7) According to claim 3, the switching station adapter allows direct metal connection between the adapter pins,
1 using a method of applying a voltage to make the electrical resistance low.
A method for designing an electronic circuit using a configurable electronic circuit board, characterized in that it can be configured only once. (8) In claim 1, the module socket includes:
A configurable electronic circuit board characterized in that it is provided with means for detecting the type of inserted electronic circuit component or adapter, and the type and position of the electronic circuit component or adapter can be identified at the same time as the insertion of the electronic circuit component or adapter. The electronic circuit design method used.