SU1596330A1 - Multichannel device for checking controllers of peripherals - Google Patents

Abstract

The invention relates to computing and can be used in test systems and control of computer devices and in highly reliable computing systems. The purpose of the invention is to reduce hardware costs and increase the reliability of the device. The goal is achieved by introducing into each channel, consisting of a data storage and processing unit, a decryption node of control exchange signals, a data bus switch, a digital signal switch and a reference external device node, and an analog signal switch. 5 il.

Description

The invention relates to computing and can be used in computer systems with increased reliability, and systems for testing and training external devices (WU) of computers.

The purpose of the invention is to reduce the hardware costs of the device and increase its reliability in operation.

FIG. 1 shows the block: device diagram; in fig. 2 - 5 - functional diagrams of the decoding node of the exchange signals, the digital signal switch, the reference WU node and the information bus switch ...

The device is connected to the computer 1 and groups of external devices (controllers) 2 being tested through a group of channels 3 (remote interface blocks), each of which contains a storage program 4 of the verification program, for example, on an electronic computer of the MCO 585 type. control signal exchange signals, switchboard 6 analog signals.

switchboard 7 digital signals, node B of the reference VU and switchboard 9 info & onny tires.

The node 5 of the deciphering and controlling exchange signals form (FIG. 2) the main transceiver 10, the address decoder 11, the control signal register 12, the relay distributor 13 of the sampling signals and the main transmitters 14 and 15.

The switch 7 of the digital signals contains (fig.Z) input connector 16, the node 17 of the multiplexers 18, the demultiplexer 19, the data switch 20, the amplifier 21 and a group of output connectors 22.

The node (simulator) 8 of the reference WU includes (FIG. 4) the node 23 of transceivers, receiver 24, trans, sensor 25, node 26 of code conversion, node 27 of memory of reference data, pulse generator 28, node, 29 counts, node 30 of operational memory and a fixed memory node 31. The switch 9 of the information buses form (FIG. 5) the grupa-bidirectional switching cells 3: 2 and the decoder 38. In FIGS. 1-5, also the inputs and outputs 34 - 75 nodes and elements of the device are designated. The device works as follows after the power supply is turned on. the device by the operator; node 4 runs tests of the initial self-test of the device and analyzes the results of these tests. After eliminating errors and malfunctions, if any, the manager chooses the operation to be performed, sets its parameters, if necessary, and starts the control program. .g In the training mode, node 4 through node.y 5 switches on switch 9 to work in one direction (from node 4 to remote devices 2) and works with a specific WU controller included in node 4 and coinciding in type with by the checked remote devices 2, the choice of the position of the controller in the computer of node 4 is carried out by the control program 3 by switching the signals M DFT and 1/1 PMV, connected x to these positions, in distributor 13 (figure 2) of node 5 ( figure 1). The switch 7 in this mode simulates the connection of WU to remote devices 2 by (Supplying to certain contacts of connectors 22 (Fig. 3) powerful low logic levels received at the corresponding outputs of the demultiplexer 19 (Fig. 3) by the command of the control program transmitted via node 5. At the end of the time of the tracing, the results are output to the computer 1. In the mode of checking the operation of the computer of node 4, through node 5 switches on the switch 9 to bidirectional (1st job, selects the remote device 2 specified by the program (WU controller), |; And At the same time, the remaining devices 2 are switched off functionally, but power is supplied to them so that they cannot cool down before checking the operation. Switch 7 connects simulator 8 to the selected device 2. Program 4a checks the selected device 2 according to the test of this device. Node 4 proceeds to check the next device, etc. The order of checking the devices and the check parameters are determined by the program. The results of the check are stored in the computer of node 4 until required by the computer 1. At the end of the system, the operator turns off Feeding system. The results of the work are recorded, for example, on a printing device (computer 1 not shown (Fig. 1). In a highly reliable computing system with a redundancy mode, the device works as follows. In blocks 3 of the remote interfaces (Fig. 1) 8, a simulator 8 is connected to the simulator 8. WU can be used, for example, hard disk drives (HDD) of the Winchester type and floppy disks (HDDD). By the initial installation in the program mode of the computer 1 of node 4 (for example, Electronics,. МСО 102 and Electronics МСО 585 correspond self-test, the entire system, self-test tests can be recorded, for example, in the central processing unit of these computers' ROM. In addition, the test of the device, which is pumped into the computer's RAM of node 4, is recorded on the memory 1 of the computer standard tests, if there were no serious errors, the standard tests check the computer t and the computer node 4, and test the test of the device - node 5 up to the transmitters 14 and 15 (figure 2). If you have known controllers, you can test the operation of the entire device in a special mode by setting these controllers in the position of remote devices 2 and by running the corresponding tests. In the presence of errors or faults, their reports are recorded in the computer of node 4, and then sequentially issued to computer 1 and the operator to make a decision based on the results of the self-test. . The program selects the continuation depending on the error and operator actions. In the absence of errors, the device provides - a parallel autonomous root of blocks 3 remote interfaces with WU 8, through one vi3 remote devices 2 under the common control of the central computer 1,. At the same time, the device's service program through the transceiver 10 (Fig. 2) and the decoder 11 writes-in register 12, the necessary switching commands for which the switch enters the Transparent Channel mode (bidirectional data transfer mode), turns on one of the remote devices 2, If the remote devices 2 are set to NMD (or floppy disk drive), then, in addition to what is described, node 5 connects to your remote device 2 via switch 7 simulator 8. In this case, information from the output of the selected device 2 goes to contact groups 60 of connectors 22 (FIG. 3 ). Service signals are then passed through multiplexers 18 (FIG. 3) and amplifier 21 to a group of contacts 61 of connector 16.

and to the input of the device installed instead of the simulator 8 (OVC), and the data through the data switch 20 to the contact group 63 and to the input of the OVC. The service signals and data from the OTDs go to groups 64 and 63 of the connector of connector 16. Next, the service signals through the demultiplexer 19 and amplifier 21 go to a group of 65 contacts of connectors 22 and to the input of the device 2, and the data via the data switch 20 to a group of contacts 62 and to the input of the device 2. All transfers are performed autonomously by each computer of nodes 4 (figure 1) of each of blocks 3 connected to computer 1 according to the maintenance program pumped sequentially from computer 1 to RAM of all specified computer nodes 4. If as remote devices 2 installed us, for example, video controllers (HB1 and HB2), the assembly 5 comprises one of the switch channels 6 through which video signals from the selected device 2 is supplied to the monitor or in the RAM (not shown) of the host computer 4.

The backup mode is provided by automatically switching to the backup device 2 (the number of which is determined by the interests of the user) when the system is initially used out of the device 2 (with the formation of a message to the operator). In this case, the host computer analyzes the cause of the failure (system failure, device 2 failure, end of device 2 allowed operating time) and sends a command to node 5 to switch to the next device 2,

The device provides operation with different types of one remote interface of block 3 using the corresponding remote devices 2 by allowing simultaneous operation of all devices 2 (or any several of them).

Claims (1)

Invention Formula A multichannel device for checking external device controllers, containing on each channel a storage node of the verification program connected by information input-output to the first information input of the information bus switch and input of the decryption node of exchange control signals, the first and second outputs connected to the control inputs of the digital switch signals and an information bus switch, the second information input / output of which is the input-output of the device for connecting to the information external input controllers and outputs, and a reference external device node whose input / output is connected to a digital input switch information input / output, a group of information input outputs of which is a group of input outputs of a device for connecting external devices controllers of a corresponding group to the control inputs / outputs, The group of outputs of the decryption node of the exchange control signals is the group of outputs of the device for connection to the inputs of the controller's controller of external devices with corresponding group, in order to reduce hardware costs and increase reliability of the device, an analog signal switch is inserted into each channel, and in each channel of the device a third output of the exchange control signals decryption node is connected to the control input of the analog signals switch The group of information inputs of which is a group of device inputs for connecting to the indicator outputs of the controllers of external devices of the corresponding group, a. the output is connected to the indicator input of the storage node of the verification program, the information input of the serial code of which is the input of setting the device mode. Fi.g.1 55 16 61 2i 64 up 29 73 6B 3 / 17 22 43 22 60 65 62 43 - fj3uB. 26 66 ie69 / 23 € 72 7O / t ЪО FIG A 7 .five