SU1642460A1 - Device for data input from microcalculator - Google Patents

Description

one

(21) 447.3910 / 24

(22) 08/15/88

(46) 04/15/91. Bul No. 14

(72) V.I. Gostev and A.A. Varanov

(53) 681.327 (088.8)

(56) USSR Author's Certificate No. 1117623, cl. G 06 F 3/00, 1984,

US patent number 4151596,

Clo G 06 F 3/00, 1979.

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(54) DEVICE FOR DATA OUTPUT FROM MICROCALCULATOR

(57) The invention relates to computing and can be used in educational laboratories for automating experimental studies. The aim of the invention is to expand the field of application of the device by automating the output of data from a microcalculator. The device contains a microcalculator 1 consisting of calculator 2, keyboard 3 and indicator 4, first 5, second 6 and third 7 matching blocks, switch 8, Decoding block 9, control block 10, buffer memory block 11 The device allows you to turn off operator errors during data output and use the micro calculator in the simplest automated control systems. 6 Il.

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The invention relates to computing technology and can be used in educational laboratories for automating experimental research.

The aim of the invention is to expand the field of application of the device by automating the output of data from the microcalculator.

FIG. 1 shows a block diagram of a device for automatically outputting data from a microcalculator; FIG. 2 shows diagrams of level matching blocks; in fig. 3 is a block diagram of the control unit; in fig. 4 is a block diagram of a decoding unit; in fig. 5 is a block diagram of a data output unit; in fig. 6 is a switch diagram.

A device for automatically outputting data from a micro calculator (Fig. 1) contains a micro calculator 1 consisting of calculator 2, keyboard 3 and indicator 4, first 5, second 6 and third 7 level matching blocks, switch 8, decoding block 9, block 10 controls and a buffer storage unit 11

Examples of the implementation of individual units of the device are focused on the use of the Elektronika MK-54 microcalculator.

FIG. 2, a shows diagrams of blocks 5 and 7 of matching levels; Fig 2, b is a diagram of the block 6 of agreement.

Blocks 5 and 7. level matching contain a group of identical sub-blocks of inverters (I1), which are an emitter follower and are part of blocks 8 and 9 "

The matching unit 6 contains a group of identical sub-blocks of inverters (I2), which are a voltage amplifier f

The control unit 10 (Fig. 3) contains a pulse shaper 12, a one-shot 13, a HE element 14, the first element 15 and a register 16 and 17.

The decoding unit 9 (Fig „4) contains a mixture of elements HE 19-24, fourteen keys 25-38 and the second element E39,

The buffer memory unit 11 (Fig. 5) contains a matching circuit 40, a decoder 41, a group of elements I42 and a group of registers 43,

The switch (FIG. 6) contains five elements NOT 44-48, element 2-2, 2, or 49 and three multiplexers 50-52.

The device for automatic data output from the microcalculator (Fig. 1) works as follows.

When a signal appears on the control inputs of the switch 8, the corresponding input of the switch 8 is connected to its corresponding output. As a result, the corresponding output of the transmitter 2 is connected to its corresponding input through the block

5 consistency levels, block 8 and block

6 level matching. Thus, the appearance of a binary code at the control inputs of the switch 8 is equivalent to pressing the corresponding key on the keyboard 3, t "e0, it is possible to automate the control of the operation of the micro calculator

Let at some point in time on the indicator 4 there appears a symbol to which the decoding unit 9 is tuned, then at its output appears the signal arriving at the input of the control unit 10. This signal is fed to the input of the pulse former 12, the pulse duration at the output of which is determined by the time required for outputting information from the microcalculator. Simultaneously, the signal from the first input of the control unit 10 is fed to the control input of the register 16 "The operation code recorded in this register can correspond to the operation of recalling information from the memory register (for example, HRP 1) 0 The binary code from register 1 is fed to the input of block 8, which leads to the call of information from the memory register, after which indicator 4 appears number Signals corresponding to this number arrive at the block 40 matching circuit 11. After the matching circuit, the information signals through the decoder 41 arrive at the information inputs of the registers 43, and the synchronizing pulses go to the first inputs of the AND 42 elements, the number of which is determined by the number of bits of the indicator o

The second inputs of the And 42 elements receive a signal from the first output of the control unit 10, allowing the recording of information into the registers 43 "When a certain information appears on the information inputs

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indicator bit is at the same time. the synchronizing pulse of this particular digit is also present. Therefore, the infocy is written into the corresponding register. When the recording of information into the registers 43 is completed, the pulse with the output of the driver of the 12 pulses ends. After the data request pulse from the external sysm arrives from the output of the element 15, the signal goes to the second control inputs of the registers and data is output. In addition, this signal triggers the one-shot 13, which is pulsed from register 17 of the binary command code C / P (continue program accounts). Since during the shutdown the information in the microcalculator did not collapse, the continuation of the execution of the program is not difficult. The binary code is fed to the input of the switch 8, and the execution of the program starts,

A fragment of the program that provides automatic data output is as follows.

The required place of the original program includes the operation of calling the indicator of the stored PEC symbol (this implies that the symbol is stored in register 0, but it can be in any other). After the symbol is called, the program stops to output data (C / R operation). Thus, the calculations are stopped, the required symbol is displayed on the indicator, which indicates the resolution of the data output. The formation and recording of the symbol are performed before the program starts. So, for the Elektronika MK-54 microcalculator, this is done using a sequence of operations, for example

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this forms and writes the symbol EB,

The algorithm for executing any program has the form, „„ 0. „(Program text until the moment of data output) IWS S / P“ .o. (Further program text after data output) „

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Thus, the normal execution of the program occurs until a character from the register is called, after that the execution of the program stops, the operation of the device blocks is started and the data is automatically output from the micro calculator. After the data is output, the execution of the program continues either until the subsequent data is output, or until it naturally stops.

Claims (1)

Invention Formula A device for outputting data from a microcalculator, containing a calculator, the inputs of which are connected to the information outputs of the keyboard, the control inputs of which are connected to the first group of outputs, calculate five connected to the inputs of the indicator, that is, in order to expand the scope of application by automating the output of data from the micro calculator, the first, second and third level matching blocks, a switch, a decoding unit, a control unit, a unit the buffer memory, the outputs of which are the information outputs of the device, the first and second control inputs of the buffer memory block are connected to the corresponding outputs of the control block, the group of control outputs of which is connected to the control inputs of mmutator, the outputs of which are connected to the inputs of the second level matching unit, the outputs of which are connected to the inputs of the calculator, the first group of outputs of which is connected to the inputs of the first level matching unit, the outputs of which are connected to the information inputs of the switch, the information inputs of the buffer memory block are connected to the indicator inputs and the third level matching unit, the outputs of which are connected to the inputs of the decoding unit, the output of which is connected to the first input of the control unit, the second input of which Is the control input of the device. Qox / vg lnnnlloyaosno l 91 LOS / OSHD mt  t п & gad ц U U. H $ g t Z tnfa 09V2V9t goxgnodotug gox§ poods / ac ggpf (Wzmt