JPH07311243A - Programmable logic board and method for testing and adjusting programmable logic board - Google Patents

Abstract

PURPOSE:To realize the designed circuit readily and to cope with the change of the circuit accompanied by tests and adjustments readily by mounting an intended device on each device mounting part on a substrate, and connecting input/output pins between the devices mutually based on the external instructions in the intended pattern through a matrix circuit. CONSTITUTION:Connecting instruction information between input/output pins is supplied into a programmable logic board from personal computer equipment or the like through writing board 14. Intended devices are mounted on a plurality of device mounting parts 10 on the logic board. A general control circuit part 13 identifies the instruction information and distributes and transfers the instruction information to each control circuit part 12. Each circuit part 11 controls each matrix circuit part 11 based on the instruction information and connects the input/output pins between the devices in the intended pattern. In this way, the actual circuit can be readily realized, and the circuit change accompanied by the tests and the adjustments can be readily accomplished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a programmable logic board which enables a designed circuit to be easily implemented as a test adjustment and also as an actual circuit. , A programmable logic board test adjustment method for easy test adjustment.

[0002]

2. Description of the Related Art Up to now, when some kind of circuit design has been made on the assumption that various ICs are used as mounting devices, this is realized as an actual circuit prior to commercialization. In addition, various tests and adjustments are performed to confirm the circuit operation. By performing various test adjustments, the designed circuit is modified as necessary to obtain a circuit that can perform a desired circuit operation for the first time.

By the way, in order to realize the designed circuit as an actual circuit for the test adjustment, the circuit pattern is first designed and then the circuit pattern is formed on the substrate by etching. Various methods have been known so far, such as a method of dipping required devices, a method of mounting devices on a substrate through IC sockets, and a method of connecting IC sockets to each other by wrapping wiring. ing. By the way, as a method of implementing many logic functions in one device, PLD (Programmable Logic Device) or LSI
(Large Scale Integration) technology has been used.

[0004]

As described above, as described above, until after the circuit design is performed and before the circuit is actually manufactured as a device mounting board for commercialization, the design is performed. In order to confirm the circuit operation of the circuit, once the circuit is actually realized by some method,
Various test adjustments need to be performed on the circuit. However, until the designed circuit is actually realized as a circuit, pattern design work, wiring work, etc. are required, and it takes a lot of time to realize it. If the need arises, it is necessary to perform a work of cutting a circuit pattern, a work of laying jumper wires, and the like, and in reality, a lot of time is required for these works.

The first object of the present invention is not only that the designed circuit is actually realized as a circuit but can be easily realized as an actual circuit when test adjustment is performed.
It is an object to provide a programmable logic board that can easily change circuits associated with test adjustment. A second object of the present invention is to provide a programmable logic board test adjustment method capable of easily performing test adjustment for such a programmable logic board in a device mounted state.

[0006]

A first object of the present invention is to provide a programmable logic board on a substrate, on which a variety of ICs are detachably mounted as devices, and a plurality of device mounting portions, and the device mounting portions, respectively. The matrix circuit section for arbitrarily connecting the input / output pins between the devices mounted on the device and the device mounting section are provided corresponding to the matrix circuit section, and the input / output pins between the devices are connected to each other. A control circuit unit for controlling to be connected arbitrarily, a general control circuit unit for instructing connection between input and output pins required for circuit formation for each control circuit unit, and a general control circuit unit Each of the programmable logic boards is configured as a unit provided with a write port for transferring the input / output pin connection instruction information from the outside or as a unit. There is achieved by configuring as being connected to each other by a matrix circuit provided in the substrate adjustment backboard.

A second object of the present invention is that the programmable logic board is connected to a test adjusting device via a board adjusting backboard and an interface converting connector, and the programmable logic board is controlled under the control of the test adjusting device. The circuit operation on the board is tested and adjusted, or each programmable logic board as a unit is a matrix circuit in the back board for board adjustment,
While being connected to the test adjustment device via the interface conversion connector, under the control of the test adjustment device,
The circuit operation in each of the programmable logic boards is achieved by being tested and adjusted.

[0008]

With the device mounted on each of the device mounting portions on the board, the input / output pins between these devices are arranged in the matrix circuit based on the input / output pin connection instruction information from the outside of the board. If the desired circuit can be connected via the desired circuit, the designed circuit can be easily and quickly realized as an actual circuit, and the circuit change due to the test adjustment can also be performed by the input / output pin connection instruction information from the outside of the board. It can be easily dealt with by making changes. If a dedicated backboard, a programmable logic board via an interface conversion connector, or a programmable logic board as a unit is connected to the test adjustment equipment, the programmable logic board or the programmable logic board as a unit may be used. The circuit operation can be easily tested and adjusted.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. First, the programmable logic board according to the present invention will be described. FIG. 1 shows an overall configuration of an example of the programmable logic board. As shown, the programmable logic board is a standard TTL
A plurality of device mounting parts 10 for mounting ICs such as CMOS and CMOS series as devices, and a matrix circuit part 11 for arbitrarily connecting input / output pins between the devices mounted on each device mounting part 10. When,
A plurality of control circuit units 12 for controlling the connection between input / output pins in the matrix circuit unit 11, and a general control circuit for giving an instruction for connection between the input / output pins required for circuit formation for each control circuit unit 12. The unit 13 and the write port 14 for transferring the input / output pin connection instruction information from the outside to the integrated control circuit unit 13 are configured to be provided.

The case where the designed circuit is realized as an actual circuit on the programmable logic board constructed as described above will be explained. As shown in FIG. The inter-connection instruction information is transferred to the programmable logic board 31 via the write port 14. In the personal computer device 30 and the like, circuit creation information data is created by the programmable logic board development software from drawings such as design circuit diagrams and time charts. Based on this circuit creation information data, a circuit is realized in each device mounting unit 10. In addition, after the required devices are mounted in a predetermined manner, the input / output pin connection instruction information is transferred from the personal computer device 30 to the programmable logic board 31 via the write port 14. In the programmable logic board 31, personal computer equipment 30
Input / output pin connection instruction information from the write port 14
Of the input / output pin connection instruction information is distributed to each of the control circuit units 12. It has been transferred. Control circuit unit 1
2 controls the matrix circuit section 11 on the basis of the input / output pin connection instruction information from the integrated control circuit section 13, so that the input / output pins between the devices are controlled inside the matrix circuit section 11 respectively. They are connected as desired. In addition, at that time, even when two or more programmable logic boards 31 need to be connected to each other, the input / output pin connection instruction information corresponding to them from the personal computer device 30 is written to the write port 14 and the integrated control circuit unit 13. , Matrix circuit part 1
1. Two or more programmable logic boards 31 are interconnected by the backboard matrix circuit section 16 by being transferred to the backboard matrix circuit section 16 via the backboard connector 15.

Here, the connection between the input / output pins between the devices will be described in detail with a delay. Figure 2
Device 2 in which (A) and (B) each have 14 input / output pins (including operation power supply pin and ground pin)
0 and 21 are shown, input / output pins a _{1 to} a ₁₄ in the device 20 and input / output b ₁ to in the device 21 are shown.
b1 ₄ and, as shown in FIG. 2 (C), since all of them are the Accommodates in the matrix circuit 22,
The input / output pins a _{1 to} a ₁₄ and b _{1 to} b ₁₄ can be connected as desired under the control of the control circuit unit 23 based on the input / output pin connection instruction information.

Lastly, the test adjustment method for the programmable logic board will be described. As shown in FIG. 4, when performing the unit test adjustment or the interlocking test adjustment for the programmable logic board 31, necessary board adjustment is performed. By providing a matrix circuit section higher than the programmable logic board on the back board for use 40 and connecting and managing the input / output pins between the programmable logic boards, the test adjustment work can be performed quickly. There is. Further, by installing the interface conversion connector 42 on the board adjustment backboard 40, the test adjustment device 41 allows the programmable logic board 3 to pass through the interface conversion connector 42.
The unit test adjustment or the interlocking test adjustment for 1 can be performed.

[0013]

As described above, according to the first and third aspects, when the designed circuit is actually realized as a circuit and the test adjustment is performed, it is easily realized as an actual circuit. In addition to the above, a programmable logic board which can easily make a circuit change due to test adjustment is also provided, and in the case according to claims 2 and 4, such a programmable logic board in a device mounting state,
A programmable logic board test adjustment method capable of easily performing test adjustment has been obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of an example of a programmable logic board according to the present invention.

FIG. 2A to FIG. 2C are views for explaining in detail the input / output pin connection between devices.

FIG. 3 shows a programmable logic board on which
Diagram for explaining how to realize the designed circuit as an actual circuit

FIG. 4 is a diagram for explaining a programmable logic board test adjustment method according to the present invention.

[Explanation of symbols]

10 ... Device mounting part, 11 ... Matrix circuit part,
12 ... Control circuit part, 13 ... General control circuit part, 14 ... Write port, 16 ... Backboard matrix circuit part, 30 ... Personal computer equipment, 31 ... Programmable logic board, 40 ... Board adjustment backboard, 41 ... Test Adjustment equipment, 42 ... Interface conversion connector

Claims (4)

[Claims] 1. A plurality of device mounting portions for removably mounting various ICs as devices on a substrate, and input / output pins between devices mounted in each device mounting portion are arbitrarily set. A matrix circuit section for connection, a control circuit section provided corresponding to the device mounting section, for controlling the matrix circuit section to arbitrarily connect input / output pins between devices, and the control circuit section. An integrated control circuit unit that gives an instruction to connect the I / O pins to each circuit unit in order to create a circuit, and a write for transferring the I / O pin connection instruction information to the integrated control circuit unit from the outside. A programmable logic board including a port. 2. A plurality of device mounting portions for removably mounting various ICs as devices on a substrate, and input / output pins between devices mounted on the device mounting portions are arbitrarily set. A matrix circuit section for connection, a control circuit section provided corresponding to the device mounting section, for controlling the matrix circuit section to arbitrarily connect input / output pins between devices, and the control circuit section. An integrated control circuit unit that gives an instruction to connect the I / O pins to each circuit unit in order to create a circuit, and a write for transferring the I / O pin connection instruction information to the integrated control circuit unit from the outside. A programmable logic board test adjusting method for a programmable logic board comprising a port and a programmable logic board, wherein A programmable logic board test in which the circuit operation on the programmable logic board is test-adjusted under the control of the test adjustment device while being connected to the test adjustment device via the board and the interface conversion connector. Adjustment method. 3. A plurality of device mounting portions for removably mounting various ICs as devices on a substrate, and input / output pins between devices mounted in the device mounting portions are arbitrarily set. A matrix circuit section for connection, a control circuit section provided corresponding to the device mounting section, for controlling the matrix circuit section to arbitrarily connect input / output pins between devices, and the control circuit section. An integrated control circuit unit that gives an instruction to connect the I / O pins to each circuit unit in order to create a circuit, and a write for transferring the I / O pin connection instruction information to the integrated control circuit unit from the outside. And a programmable logic board as a unit, each of which is provided with a port and connected to each other by a matrix circuit provided in a board adjusting backboard. Programmable logic board. 4. A plurality of device mounting portions for removably mounting various ICs as devices on a substrate, and input / output pins between devices mounted in the device mounting portions are arbitrarily set. A matrix circuit section for connection, a control circuit section provided corresponding to the device mounting section, for controlling the matrix circuit section to arbitrarily connect input / output pins between devices, and the control circuit section. An integrated control circuit unit that gives an instruction to connect the I / O pins to each circuit unit in order to create a circuit, and a write for transferring the I / O pin connection instruction information to the integrated control circuit unit from the outside. And a programmable logic board as a unit, each of which is provided with a port and connected to each other by a matrix circuit provided in a board adjusting backboard. A programmable logic board test adjustment method for a programmable logic board, wherein each programmable logic board is connected to a test adjustment device via a matrix adjustment in-board matrix circuit for board adjustment and an interface conversion connector. A programmable logic board test adjustment method for testing and adjusting the circuit operation of each programmable logic board under the control of a device.