SU842776A1 - Device for testing information input-output system - Google Patents

Description

(54) DEVICE FOR CONTROL OF INFORMATION INPUT AND OUTPUT SYSTEM # 1

-:. ; The invention RELATES to an apparatus for receiving, storing and processing information, in particular to path control devices. A data transmission channel, which is understood as a channel, is a set of peripheral information input / output devices. (UVB) and cable connections - standard I / O interface A device for diagnosing faults of peripheral devices is known, which contains a control unit, a time control unit, a switching unit, and th switch / decoder mode, the register exchange and decoder register number 1. This device not only provides validation tract health channel-subscriber and allows only be checked operability IOCTL. In addition, the device does not have the ability to simulate faulty signals from the channel to check the response of the monitoring system, which is highly intrusive. Closest to the proposed technical solution is an I / O control unit containing information and control signaling units, a control unit, command, data and status registers, a state indication unit, a regulated request block, a control mode block, an analysis block, which consists of an address node, sampling patterns, control cxeN & i, information reception registers and control signals, the information to the control inputs of the device are connected to the inputs of the information reception registers and the control x, the control unit outputs - to the input signals and issuing upravhYaEoodah information blocks indicating state, the control modes, and circuits vhoda1 outputs control unit accordingly to block Res 7ulirue "x queries and data register. The COM input is connected to the input of the information output unit. The output of the control signal receiving register is connected to the inputs of the control and output control units, the address / command register node and cxewii sample, the output of the information reception register to the command register inputs, the address node, the control circuit, which output is connected to the command register and the address node . The inputs of the control unit are connected to the outputs of the command register. cxeNbi sample, issuing control signals and an address node, another output of which is connected to the input of the information output unit, output of the control mode block to the inputs of the information output and control signals of the sampling circuit, output of the control signal output unit to the inputs the information output unit and the indicating unit, one output of which is connected to the input of the information output unit, and the other with the status register, the output of which is connected to the input of the information output unit, the output of which is connected to the output information buses , and the output of the signal output unit is connected to the output control buses. The I / O control unit provides the ability to verify the operability of the I / O channel 2. The disadvantages of the known device are the lack of ability to check the operation of the air-blast, the absence of indication of the interface buses. In addition, the device does not allow simulating the failed signals from the channel to check the response of the system for controlling the error of the air-blast system, transmit data of a given configuration, check the operability of the entire memory of the multiplex channel. The purpose of the invention is to provide a diagnostic check of the operability of the information input / output channel, the air-blast device, the input / output interface, i.e. improving the reliability of the information input / output control system; The goal is to reach a device containing an information output unit, a control output unit, a subscriber control unit, a subscriber control mode unit, a clock generator, an address register, a command register, a control panel the first output of the subscriber control unit is connected to the first inputs of the control signal and information output units, the second output is connected to the third input of the subscriber analysis unit, the third output is connected to the input of the abone state unit The nta, the output of which is connected to the second input of the information output unit, the third input of which is connected to the output of the address register and the fourth input of the subscriber analysis unit, the fourth input with the output of the command register and the fifth input of the subscriber analysis unit, the first h of the second inputs are connected respectively to the first and second inputs of the command register and information and control buses., channel, and the output - to the first input of the subscriber control unit, the second input of which is connected to the output of the clock generator, the input of which is connected the first output of the control panel, the second output of which is connected to the input of the control mode block of the subscriber, the output of which is connected to the fifth input of the information output unit and the second input of the control output module, the first output of which is connected to the control buses of the subscriber, and the first output of the block information output is connected to subscriber information buses, a channel control block, a channel analysis block, a channel control block, an account register, a symbol information generator, an OR element are entered, the first od control unit, the channel connected to the third input of issuing control signals and sixth; input block issuing information, the second exit -. the first input of the OR element, the second input of which is connected to the fourth output of the customer control unit, and the output to the first input of the account register, the output of which is connected to the sixth input of the subscriber analysis unit and the third input of the channel analysis unit, the first and second inputs of which are connected with the subscriber's information and control buses and the first and second control panel inputs, the fourth input of the channel analysis unit is connected to the output of the command register, the fifth input — with the output of the address register, the sixth input — with the third the channel control unit, the first input of which is connected to the output of the channel analysis unit, and the second input to the clock generator output, the seventh input of the channel analysis unit is connected to the third output of the control panel, and the informational and control channel buses are connected to the third and fourth inputs, and the fourth output is connected to the second input of the account register, the fifth output - to the input of the address register, the sixth - to the third input of the command register, the seventh output to the first input of the symbol information generator, the eighth output - to one unit of the control mode of the channel, the output of which is connected to the seventh input of the information output unit and the fourth input of the control output unit, the second output of which is connected to the control busses of the channel, the third output to the second input of the symbol information generator, the output of which is connected With the eighth input of the information output unit, the second output of which is connected to the information buses of the channel. The drawing shows a block diagram of the device. The scheme contains a block of 1 control modes of the channel, a block 2 of issuing control signals, a block 3 of issuing information, a block 4 of control modes of the subscriber, a block 5 of channel control, a block b of subscriber control, a block 7 of subscriber state, a generator 8 of symbolic information, a block 9 of analyzes channel, unit 10 subscriber's angitises, clock generator 11, account register 12, address register 13, command register 14, control panel 15, control 16-subscriber buses, subscriber information buses 17 (), control 11 SCHN 18 channels, information buses 19 channels (SHIN-K), element OR, 20 . The control signal issuing unit 2 generates the I / O interface signals from the channel and the subscriber, and transmits via the control buses 18 of the channel or the control buses 16 of the subscriber. The information output unit 3 transmits the address of the ACU from the address register 13, the command from the channel register 14, data from the generator 8 symbol information, the device status byte from the subscriber state block 7 to TIR-K 19 or TIN-A 17. Blocks control modes of channel 1 and subscriber 4 control the information output units 3 and control signals 2 in such a way that violations of signal sequences, blocking the issue or reset of the desired signal, simulating several signals from the channel or subscriber, generated by the output unit 2, are simulated control signals, as well as the parity violation of the information transmitted by block 3 of the information output on Shin-K or Shin-A. The mode of operation of the control mode blocks is set from the control panel 15. The channel control unit 5 generates signals for controlling the control signal output units 2 and information 3, the channel analysis unit 9, the count register 12. The synchronization of the operation of the control unit is carried out by the clock generator 11. The subscriber control unit 6 generates signals for controlling the control signal output units 2 and information 3, the subscriber state block 7, the subscriber analysis block 10, the count register 12. with the clock generator 11. The subscriber's state block 7 generates bytes of the UVC state bytes according to the WIE with the signals from the subscriber control block 6. Generator In symbolic information, it forms Data Bytes of a constant configuration or according to a specific law. The mode of operation of the generator is set from the control panel 15. The formation of the next data byte is effected by a signal from the control signal output unit 2. The channel analysis block 9 analyzes the mode of operation of the device in a multiplex or exclusive channel set by the control panel, controls the parity of information received via BUS-A 17, the time parameters controlling the signal from the subscriber 16, analyzes the bytes of the UVB state, and the contents of register 12 and the register of 14 commands, makes a comparison of addresses: selectable (13) and selected (17) air-blast. The analysis conditions are set by the channel control block 5, which uses the result of the analysis in generating control signals. The subscriber analysis unit 10 analyzes the control signals from channel 18, controls the parity of the information received via SHIN-K 19, analyzes the command code received from the channel, the contents of the register 12 of the account, compares the assigned address to the device, see s: J in register 13 addresses, when the device is working per subscriber with the address received from the channel via SHIN-K 1.9. The analysis conditions are set by the subscriber control unit 6, which uses the result of the analogue in generating control signals. The clock generator 11 generates clock pulses for synchronization of the operation of the channel control units 5 and the subscriber 6. The generator operates in self-oscillating and standby modes. The mode of operation, the timing diagram of the generator are set from the remote control 15 control. The standby mode of the generator is used to perform the interface sequences of the device operation signals with the WEV in steps. Account register 12 stores the number of data bytes to be transferred. The contents in the count register are entered from the control panel 15, modified when data is transmitted to the channel control units 5 or the subscriber 6, and analyzed by the channel analysis or subscriber units 9 respectively. The address register 13 stores the address of the UVB that is connected to the device or which is assigned to the device when working for the subscriber. The value of the address is entered into the address register from the control panel 15. Command register 14 is used to store the command code. The content is entered from the remote control 15 of the control unit and transmitted through the unit 3 for issuing information to the subscriber, or is entered from SHIN-K 19 during operation of the device per subscriber. The control panel 15 performs the display of the control buses of the channel 18 and the subscriber 16 and the information buses of the channel 19 and the subscriber 17, enters the contents into the registers 12 of the address count 13, commands 14, controls the operation of the control modes of the channel 1 and subscriber 4, the generator 8 symbolic information and the clock generator 11. The control buses of the channel 18 and the subscriber 16, as well as the information buses of the kanesh 19 and the subscriber 17, are designed to connect the device to the channel-subscriber path (not shown). The proposed device has several modes of operation. In the operation mode for the selector channel, from the console 15, the control sets the following information: channel type (multiplex, selector), operating mode (stepping, automatic), symbolic information generator mode, selectable UVV mode, command code, number of data bytes, type simulated error. Upon device start-up, from the channel control unit 5, control signals are received in information output units 3 and control signals 2, by which the information output unit transmits the address of the selected UVC from the address register 13 to TIR-K 19, and the control output signals generate the address signals channel (ADR-K), channel sampling (VNR-K) and channel sampling resolution (RVV-K) over control buses 18 of the channel. The air-blast identifying address is logically connected to the device, collectively on the subscriber's control buses 16 by the Work Subscriber Signal (RAB-A), which is analyzed in channel analysis block 9 in accordance with the conditions specified by the channel control block 5. By a signal from the RAB-A block, 5 control channels generates signals to blocks 3 for issuing information and control signals 2, which are used to remove the address byte from SHIN-K 19 and the YDR-K signal from the control buses 18 of the channel. In response, the UVV transmits its own address via TIR-A 17, accompanied by a signal to the Subscriber's Address (ADR-A) on the control buses of 16 subscribers. , The channel analysis block 9 checks the parity of the information and compares the incoming address from the air-blast with the contents of the register 13 of the address. When comparing addresses and correct parity of information, the channel analysis block 9 issues the corresponding analysis result to the channel control block 5, according to which signals a command from the register 14 of commands is transmitted through the block 3 issuing information to the iMH-K 19; the control signal output unit 2 generates a channel control signal (UPR-K), according to the signal of which, the UVB removes the address byte and the DCR-A signal, and the 3aTeJid device removes the UPR-K. According to the signal of the signaling system, the UVT transmits, via SHIN-A, a byte state, and, with a signal, the Subscriber Management (UPR-A) sends 16 subscribers to the control busbars. If the status byte is non-zero or has irregular parity, then the shutdown sequence is fired, otherwise the data transfer mode is set. When Record the execution of a formation command from the generator 8 of symbol information, it is transmitted one by one through the information output unit 3 to TIR-K 19, followed by the Channel Information (INF-K) signal on the control buses 18 of the channel. The generation of the next data byte by the symbol information generator 8 is effected by a signal from the control signal output unit 2. When the Read command is executed: data is received from the AHU via TIR-A 17i and the parity of block 9 of channel analysis is monitored, and block 2 of issuing control signals generates an IN, FK signal for each data byte indicating that the information has been received. During the transmission of each data byte by the channel control unit 5, the contents of the counting register 12 are modified and analyzed by the channel analysis unit 9 for equality to zero. When the account register is reset to zero, the data transfer is stopped and the shutdown sequence is processed. Similarly, all interface sequences of multiplex and select channel channels are formed. At all stages of the execution of interface sequences, errors may occur in the operation of the channel, which are detected and properly reflected in the operation of the air-blast. To check the response of the error control cilcleMJ to the air-blast, block 1 of the channel control modes, imitating different ones at all stages of execution, is used. I / O operations. Block 1 of the contour channel channel modes generates such errors as parity violation of the transmitted information by block 3, information output via SHIN-K /. violation of the sequence of control signals from the channel, blocking the issuance or reset of the desired signal, simultaneously issuing several signals from the channel, generated by the unit 2 issuing control signals. In the operation mode of the device, the following information is set for the subscriber from the control panel 15, the subscriber's address, the mode of operation (exclusive, multiplex), the mode of operation of the symbol information generator, the data transfer rate, the number of data bytes, the type of simulated error. The channel transmits 19 bytes of the address of the air-boring device via SHIN-K and control buses via the control bus. Channel 18 - signals ADR-K, VBR-K and RVB-K, which are received in block 10 of subscriber analyzes. The analysis conditions are specified by the subscriber control unit b. With correct parity of information and comparison of the received address with the address stored in the address register 13, the control signal output unit 2 generates a RAB-A signal on the control buses 16 of the subscriber. In the OTHER case, the subscriber sampling signal (VBR-A) is issued. As the ADR-K signal is removed by the channel, the information output unit 3 transmits the address from the register to the address 13 to 17,

and unit 2 for issuing control signals to the ADR-A signal on the control buses 16 of the subscriber. The address from the device is analyzed by the channel and, with the correct parity and comparison of the addresses, a command is sent from the channel, otherwise the shutdown sequence is processed.

The incoming command is entered into the command register 14 and analyzed in block 10 of the subscriber analyzes. According to the results of the analysis, the subscriber control unit 6 generates control signals in COOT corresponding blocks. The subscriber's state unit 7 forms the status byte, and the information units 3 and the control signals 2 reduce the address byte with the BUS-A and the ADR-A signal. According to the removal of the UPR-K signal by the channel, the formed byte of the state is transmitted through the information output unit 3 to TIR-A 17 and

accompanied by a UPR-A signal generated by the control signal issuing unit 2, the control channel analyzes the received status byte on the control buses 16 of the subscriber. If the status byte is with the correct parity, and is equal to zero, the data transmission starts, otherwise the cache executes the shutdown signal sequence.

During the operation, ReadJ information from the generator 8 of symbol information is transmitted one by one through the information output unit 3 to TIR-A 17, and the control output unit 2 generates an INF-A signal on the subscriber control buses 16 for each data byte.

When the Record command is executed, data is received from a channel via SHIN-K 19 and monitored by an even network by the subscriber analysis unit 10, and the control signal issuing unit 2 generates an INF-A signal indicating that the next data byte from the channel can be received. The data is set by the clock generator 11.

When transmitting each data byte, subscriber control unit 6 modifies the contents of account register 12 and is analyzed by subscriber analysis unit 10. By resetting the counting register 12, the data transfer is stopped and the shutdown sequence is performed.

The device works in a similar way when performing all interface sequences of signals per subscriber.

At all stages of the execution of the interface sequence, errors may occur in the operation of the air-blast that are detected and processed by the channel. To check the channel error control system’s response, the device uses a subscriber control mode block 4, which allows to simulate errors such as parity violation of information transmitted by the TIR-A information output unit 3, control signal sequence from the subscriber, blocking the output or reset of the required signal , simultaneously issuing several signals from the subscriber, -formed by the unit 2 of the issuance of control signals.

Thus, the proposed device allows to verify the operation of I / O devices without connecting to the real channel, I / O channels without connecting to real I / O devices, checking the multiplex channel memory, simulating the faulty I / O interface signals The response of the channel or subscriber error control system, transmit the data of a given configuration and at different speeds to measure the capacity of the channel or subscriber.

In accordance with the proposed block diagram of the device, an experimental prototype was designed and manufactured. Pa, tested during commissioning and maintenance work of the system input-output information of the computer EC-1033. The test results show that the commissioning time has been reduced by more than 2 times, and the fault localization time is about 1.5 times.

The device can also be used in the training of service personnel on the input-output system of the EC computer as a simulator and simulator of channel and subscriber errors.

Claims (2)

1. USSR author's certificate f 558277, cl. G 06 F 11/04, 1977. 2. USSR author's certificate number 453685, cl. G 06 F 3/04, 1975 (prototype).