JPH039282A - Adapter for configurable electronic circuit board - Google Patents

Abstract

PURPOSE:To accomplish an optional circuit which is not restricted by the size and the position of the parts of an electronic circuit and wiring by inserting a pin adapter, a switching station adapter and a bypass adapter in an optional module socket. CONSTITUTION:On the board 20, the terminals 24 of the module sockets 22 which is the minimum unit of the size and the number of pins in which a small programable logical element PLD 14A can be directly inserted are connected with each other with the simple wiring 26. A termial on a peripheral part is connected to the I/O port 21 of the board 20. It is because the wiring between the respective terminals 24 can be configruated by means of a switching station 44 and the small PLD 14A monuted on an SS adapter 46 and a large PLD 14B mounted on a pin adapter 38 that the module sockets 22 are connected with each other with the simple wiring 26 in a vertical direction and a horizon tal direction.

Description

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

The present invention relates to an adapter for a configurable electronic circuit board, and more particularly to an adapter for a plurality of very large scale integrated circuits (VLSI).
) is a configurable electronic circuit board that can easily realize any actual circuit, and is suitable for use in verifying and testing the designed system with an actual circuit when designing a VLSI system consisting of a board based on It concerns the adapter.

[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 take time for computer calculations, and there are problems with errors in modeling the actual circuit. 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. 26,
A central microprocessor (CPU) 10 chip, a large number of various general-purpose integrated circuits (ICs) 12 such as TTLSRAM and ROM, and a very small number of programmable logic devices (PLDs) 14 used for address decoding, etc.
One idea is to use a breadboard consisting of a one-board computer, for example, by arranging peripheral circuits consisting of peripheral circuits on the system board 16 in combination for each system design and wiring them by soldering using printed wiring or jumper wires. It is being However, if such a dedicated breadboard is made for each system, the scale of integration 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,
49831 is equipped with a memory element that defines connections between a plurality of logic devices, and by making the contents of the memory element rewritable from the outside, the internal wiring can be freely rearranged as necessary. Electronic devices are disclosed that are adapted to implement various logical functions. Furthermore, Japanese Patent Laid-Open No. 63-50999 discloses that a fuse is provided to define the connection relationship between a plurality of logic devices, and by making it possible to blow out the fuse from the outside, the internal wiring can be freely assembled 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, and furthermore, wiring is installed at the intersections of the wiring. Since a wiring exchange device is installed in , it is possible to replace any wiring.

[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 electronic components cannot be installed 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.
It is not possible to install electronic circuit components of different sizes that do not fit into normal sockets, such as U or large-scale PLDs, and furthermore, the positions of the electronic circuit components and the wiring exchange device are fixed, and the positions cannot be changed. Therefore, it has not been possible to realize an arbitrary circuit. The present invention has been made to solve the above-mentioned conventional problems, and provides a configurable child circuit that allows electronic circuit components of any size to be placed at any position on the board and is extremely easy to change. The first task is to provide a pin adapter for the board. A second object of the present invention is to provide a switching station adapter for a configurable electronic circuit board that allows wiring connections to be made at any position on the board. The present invention also provides a bypass adapter for a configurable child circuit board that allows circuits to be easily configured even if there are locations on the board that do not require electronic circuit components or wiring determination means. This is the third issue.

[Means to achieve the task]

The present invention provides a configuration 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 inserted into the module socket of a board connected by simple wiring. In an adapter for a flexible electronic circuit board, the adapter pin has a size that is a natural number multiple of the module socket and can be inserted into the module socket, an adapter socket into which an electronic circuit component can be inserted, and a terminal of the adapter socket and an adapter pin. The first problem has been achieved by providing a socket wiring that connects the two. The present invention also provides a similar adapter for a configurable electronic circuit board, which has a size that is a natural number multiple of the module socket and determines the wiring connection between adapter pins that can be inserted into the module socket and the adapter pins. By providing a wiring determining means for the second
This goal has been achieved. In the present invention, the wiring determining means may be capable of connecting the adapter pins with metal. In the present invention, the wiring determining means further includes a wiring changeover switch for connecting the terminal of the module socket and the surface wiring or lower wiring of the electronic circuit board. The present invention also provides a similar adapter for a configurable electronic circuit board, which has an adapter pin that is a natural number multiple of the size of the module socket, and a fixing member that simply bypass-connects the adapter pins that can be inserted into the module socket. The third problem is achieved by inserting the module into an unused module socket. The present invention further includes means for identifying the type of the adapter or the electronic circuit component mounted on the adapter.

[Action and effect]

In the configurable electronic circuit board to which the present invention is directed, a large number of module sockets each having a standardized size and minimum number of pins are arranged side by side, and the terminals of the module sockets are connected by simple wiring. Therefore, the pin adapter and switching station adapter according to the present invention,
By inserting the bypass adapter into any module socket, any circuit can be realized without being limited by the size or location of the electronic circuit components, wiring determination means, or all components. Second, in order to mount an arbitrary electronic circuit component, the pin adapter according to the present invention includes an adapter pin that can be inserted into the module socket, and an electronic circuit component that can insert an electronic circuit component such as a central processing unit, a programmable logic element, etc. It includes an adapter socket and socket wiring that connects the terminal of the adapter socket and the adapter pin, and has a size that is a natural number times the size of the module socket to match the size of the electronic circuit component. Therefore, electronic circuit components of any size can be placed at any position on the board without being limited to the size of the module socket, and changes are extremely easy. Further, the switching station adapter according to the present invention for determining the wiring connection between the module sockets includes an adapter pin that can be inserted into the module socket, and a wiring determining means for determining the wiring connection between the adapter pins. and a size that is a natural number times the size of the module socket. Therefore, wiring connections can be determined at any position on the board. Further, when the wiring determining means is capable of connecting the adapter pins with metal, transmission delay is improved,
You can increase the system clock etc. Further, when the wiring determining means includes a wiring changeover switch for connecting the terminal of the module socket and the surface wiring or lower wiring of the electronic circuit board, a separate wiring changeover switch may be installed on the board. There is no need to provide one. Further, the bypass adapter according to the present invention, which is inserted into an unused module socket, includes adapter pins that can be inserted into the module socket, and fixed wiring that simply bypass-connects the adapter pins, It is said to be twice the size. Therefore, even if there are places on the board where no electronic circuit components or wiring determining means are present, the circuit can function. Therefore,
There is no need to place all electronic circuit components on the board,
Even small systems can be configured. Furthermore, if a means for identifying the type of the adapter or the electronic circuit component mounted on the adapter is provided, the type and position of the electronic circuit component or adapter can be discriminated at the same time as the insertion of the adapter. , it is possible to omit the work of inputting data into the development tool again.

【Example】

Embodiments of the present invention will be described in detail below with reference to the drawings. A first embodiment of a configurable electronic circuit board to which the present invention is applied 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 the left and right directions in FIG. The board 20 is connected to the board 20 by the wiring 26) in the direction shown in FIG.
2, and an adapter socket 36 having a size that is a natural number times (4 times in the example) the size of the module socket 22 and into which a large PLD 14B can be inserted. Large PLD related to
and a wiring determining means (switching station) (SS) having a size that is a natural number times (1 times in the embodiment) the size of the module socket 22 and for determining the wiring connection between the module sockets 22. An SS adapter 46 according to the present invention having a size of 44 and a size that is a natural number times (1 times in the example) the size of the module socket 22, is inserted into an unused module socket, and simply bypasses the upper, lower, left and right wiring. Fixed wiring to connect 4
8, and a bypass adapter 52 according to the present invention having a small PLD 14A or each adapter 34 according to the present invention.
38, 46, and 52 into any module socket 22, any computer circuit can be realized. Although not shown in FIG. 1, the adapter in which electronic circuit components such as each module socket 22, the six PLDs 14B, and the switching station 44 require definition of internal circuits is mounted is shown in FIG. As shown in
Pins 54 for configuring the internal circuitry are provided in the usual adapter pin pools 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 I of the board 20.
10 is connected to boat 21. Here, the module cycads 1-22 are connected to each other by simple wiring 26 in the vertical and horizontal directions, because the wiring between each terminal 24 is
This is because configuration can be performed using the switching station 44, small PLD 14A mounted on the SS adapter 46, large PLD 14B mounted on the pin adapter 38, and the like. The large PLD pin adapter 38 according to the present invention is a large PLD 14B that cannot be directly inserted into the module socket 22.
As shown in detail in FIG. 4, there is an adapter pin 38A that can be inserted into the module socket 22, an adapter socket 38B that can insert, for example, a large PLD 14B, and the adapter socket 38.
It includes a socket wiring 38D that connects the terminal 38C of B and the adapter pin 38A. Said adapter pin 3
8A is arranged in accordance with the hole position of the module socket 22, and as shown in FIG. 5, one large PLD pin adapter 38 is mounted using, for example, four module sockets 22. It looks like this. As shown in detail in FIG. 6, the SS adapter 46 according to the present invention includes adapter pins 46A that can be inserted into the module socket 22, and a switching station 44 for determining wiring connections between the adapter pins 46A. By configuring the switching station 44, each direction (N, W, S, E
) connections can now be configured. The switching station 44 may have a transfer gate 60 between the source pin S and the load pin L, as shown in the circuit shown in FIG. 7, for example. In this case, reconfiguration is possible after determining the wiring connections. Note that if all directions of N, W, S, and H are programmable, for example, the 8th
As shown in the figure, two or more, in this case three, transfer gates 60A, 60 are connected between the source pin S and the load pin L.
B, 60C can be provided. Further, as the switching station 44, a switch having a fuse 62 as shown in FIG. 9, for example, can be used instead of the 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 can prevent problems from occurring. 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 etc. may be used in correspondence with the number of gates, as in the example of FIG. Further, as shown in detail in FIG. 10, the bypass adapter 52 has two layers in the vertical and horizontal directions that simply bypass connects an adapter pin 52A that can be inserted into the module socket 22 and the adapter pin 52A. Module socket 22 that has fixed wiring 48 and is not used
By inserting the cable into the cable, the wiring in the vertical direction and the horizontal direction can be independently connected. By using this bypass adapter 52, even a relatively small system can be realized without disposing PLDs in all module sockets 22. In addition, the above-described embodiments describe the present invention as shown in FIG.
Although the present invention has been applied to a one-board computer that mainly includes 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. The second shown in
As in the example, C is four times the size of the module socket.
A PU pin adapter 34 and a system clock Q for independently oscillating the system clock of the CPU 30.
For example, a standard-sized O3C pin adapter 74 equipped with an OSC 72, and a 4-pin adapter 74 equipped with a dynamic random access memory (DRAM>76).
@ 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
It can also be constructed using, for example, a double size SS adapter 46 and a standard size SS adapter 46 placed between the two. The configurable breadboard of the second embodiment is suitable for constructing a one-board computer and for developing fully custom chips such as 64-bit microcomputers and fuzzy chips. It is also possible to configure 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 on a board-by-board basis, and the SS adapter 46 and the small PLD according to the present invention are
D14A are regularly arranged in a houndstooth pattern on the board 20, as shown in FIG. 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, the small PLD 14A
Although it was possible to insert the PLD directly into the module socket 22, a pin adapter for the small PLD 14A may also be used. Next, a fourth embodiment of a configurable electronic circuit board to which the present invention is applied 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 on the bottom surface of the adapter according to the present invention, for example, the bypass adapter 52, as shown in FIG.
For example, a rod-shaped dog 92 is provided to be inserted into the switch hole 90, and when the adapter is inserted into the module socket 22, the output of the switch contact 94 that is turned on and off by the dog 92 is connected to the I10 port 2 of the board 2o.
1 to the development tool 96, thereby making it possible to discriminate 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. 15, for example. Further, as shown in FIG. 16, the small PLD 14A is not provided with a dog 92, and the parts without the dog 92 are small PLDs.
It can be determined as D. Here, the dog 92 is not attached to the small PLD 14A because the module socket 2
This is because the small PLD 14A directly inserted into the PLD 2 becomes a product as it is. In addition, when the /l, PLD 14A is also 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 Figure 7, dogs 92 can be provided at multiple locations on the pin adapter 38. For example, in the case of a pin adapter 38 that is 4 times the size, 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. Next, a fifth embodiment of a configurable electronic circuit board to which the present invention is applied will be described in detail with reference to FIGS. 18 to 21. This fifth embodiment uses a board 20 similar to the first embodiment.
In addition to the surface wiring 26 (see FIG. 19) that connects the terminals 24 of adjacent module sockets 22, the terminals of distant module sockets 22 are also directly connected via a pass line (long line). A wiring changeover switch 104 (see FIG. 21) for selectively connecting the terminal 24 of the module socket to either the surface wiring 26 or the lower wiring 100. It is prepared. In this fifth embodiment, the SS adapter 4 according to the present invention
6 is an arbitrary wiring 2 on the surface layer of the board as shown in FIG.
6 can be connected to the vertical/horizontal pass line (100) at the bottom of the SS adapter 46. According to the fifth embodiment, a long line such as a pass line can be formed by the lower layer wiring 100, and wiring is easy. The switching information of the wiring changeover switch 104 is the fourth
As in the embodiment, any switching position identification means can be input to the development tool 96. Next, a sixth embodiment of a configurable electronic circuit board to which the present invention is applied will be described in detail. In this sixth embodiment, in order to save the area of the board 2o,
As shown in FIG. 23, each adapter according to the present invention has a surface layer dedicated pin 110 and a lower layer dedicated pin 112.
is provided independently, and correspondingly module socket 2 is provided.
2, as shown in detail in FIG. 24, is provided with a hole for independently receiving the surface layer exclusive pin 110 and the lower layer exclusive pin 112, and thereby, as shown in FIG. 25, the surface layer exclusive pin 110 and the lower layer exclusive pin 112 can be independently connected to the surface wiring 26 and the lower layer arrangement ioo. In this sixth embodiment, the selection states of the surface wiring and the lower wiring are also configurable in the SS adapter 46 according to the present invention similar to the first embodiment. 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 configuration that does not include a bypass adapter. It is clear that it can be applied to flexible electronic circuit boards as well.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the overall configuration of a first embodiment of a configurable child circuit board to which the present invention is applied; FIG. 2 is a plan view showing the shape of the main parts of the board; FIG. is a plan view for explaining the actual state of each adapter according to the present invention, FIG. 4 is a perspective view showing the shape of an embodiment of the large PLD pin adapter according to the present invention, and FIG. FIG. 6 is an explanatory diagram for explaining the method of inserting the large PLD pin adapter into the board; FIG. 6 is a plan view showing the configuration of implementation p1 of the switching station (SS) adapter according to the present invention; FIGS. FIG. 9 is a circuit diagram showing an example of the internal configuration of the SS adapter, FIG. 10 is an explanatory diagram for explaining the configuration of an embodiment of the bypass adapter according to the present invention and the state in which it is attached to the board. FIG. 11 is a plan view showing a second embodiment of the configurable electronic circuit board to which the present invention is applied, and FIG. 12 is a plan view showing the configuration of a third embodiment of the configurable electronic circuit board to which the present invention is applied. A plan view, FIG. 13 is a plan view showing the main part configuration of a fourth embodiment of a configurable electronic circuit board to which the present invention is applied, and FIG. 14 is a plan view of the present invention used in the fourth embodiment. FIG. 15 is a side view showing the shape of another embodiment of the SS adapter according to the present invention; FIG. 16 is a cross-sectional view showing the method of mounting the bypass adapter on the board; , FIG. 17 is a side view showing the shape of a small PLD, FIG. 17 is a cross-sectional view showing another embodiment of the pin adapter for large PLD according to the present invention and the method of mounting it on the board, and FIG. 18 is a side view showing the shape of the small PLD. FIG. 19 is a plan view showing the main part configuration of a fifth embodiment of a configurable electronic circuit board to which the invention is applied; FIG. 19 is a sectional view similarly showing the state of the surface wiring; FIG. 21 is a sectional view showing the configuration of the wiring changeover switch, and FIG. 22 is a plan view showing another embodiment of the SS adapter according to the present invention, which is used in the fifth embodiment. FIG. 23 is a perspective view showing the main part configuration of an embodiment of an adapter pond according to the present invention, which is used in a sixth embodiment of a configurable electronic circuit board to which the present invention is applied. 25 is a sectional view, and FIG. 26 is a plan view showing the configuration of a conventional one-board computer. FIG. 27 is a plan view showing the configuration of a module socket of the sixth embodiment. is a plan view showing an example of a one-board computer using the same PLD. 14A...Small programmable logic element (small PLD
), 14B...large scale programmable logic element (large PLD
), 20... Board, 22... Module socket, 24... Terminal, 26... (Surface layer) wiring, 30... Central processing unit (CPU), 32.3
6... Adapter socket, 34... Pin adapter for CPU, 38... Pin adapter for large PLD, 44... Switching station (SS), 46...
...SS adapter, 8...Fixed wiring, 2...Bypass adapter, 2...System clock oscillator (OSC>, 4...
OSC pin adapter, 6...Dynamic random access memory (DRA)
M), 8...DRAM pin adapter, 0...peripheral circuit, 2...pin adapter for peripheral circuit, 0...switch hole, 2...dog, 4...switch contact, 00 ...lower layer wiring, 10...surface layer exclusive pin, 12...lower layer exclusive pin.

Claims (6)

[Claims] (1) A configurable electronic device that is inserted into a module socket of 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. An adapter for a circuit board, which has a size that is a natural number multiple of the module socket and includes an adapter pin that can be inserted into the module socket, an adapter socket that can insert an electronic circuit component, and a terminal of the adapter socket and an adapter pin. A configurable electronic circuit board adapter characterized by having socket wiring for connecting the configurable electronic circuit board. (2) A configurable electronic device that is inserted into the module socket of 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. A circuit board adapter, comprising: an adapter pin having a size that is a natural number multiple of the module socket and capable of being inserted into the module socket; and wiring determining means for determining a wiring connection between the adapter pins. A configurable electronic circuit board adapter. (3) The adapter for a configurable electronic circuit board according to claim 2, wherein the wiring determining means is capable of connecting the adapter pins with metal. (4) The adapter for a configurable electronic circuit board according to claim 2, wherein the wiring determining means includes a wiring changeover switch for connecting the terminal of the module socket and the surface wiring or lower wiring of the electronic circuit board. . (5) A configurable electronic device that is inserted into the module socket of 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. An adapter for a circuit board, which has a size that is a natural number multiple of the module socket, and includes adapter pins that can be inserted into the module socket, and fixed wiring that simply makes a bypass connection between the adapter pins, and an unused module socket. An adapter for a configurable electronic circuit board, characterized in that it is inserted into a configurable electronic circuit board. (6) In any one of claims 1 to 5, further:
An adapter for a configurable electronic circuit board, comprising means for identifying the type of the adapter or the electronic circuit component mounted on the adapter.