SU1539838A1 - Programming device - Google Patents

Abstract

The invention relates to computing and can be used in programming memory chips. The aim of the invention is to improve the programming performance. This goal is achieved by introducing a distributor 7 pulses, a key block 11, a stepper motor 12, a sensor 13, counters 3, 4, 5, an adder 6, a trigger 8, an element I 9, a delay element 10, switches 14, 15. 1 Il.

Description

WITH

with

The invention relates to computing and can be used in programming memory chips used, for example, to control a stepper motor.

The aim of the invention is to improve the programming performance.

The drawing shows a block diagram of the programmer.

The programmer contains the driver 1 write pulses, the first, second, third and fourth counters 2-5, adder 6, the distributor 7 pulses, trigger 8, element 9, delay element 10, key block 11, stepper motor 12, sensor 13, first 14 and second 15 switches, programmer initial setup input 16, third programmer mode control input 17, programmer address address input 18, first 19, second 20 and third 21 programmer synchronization inputs, second 22 and first 23 programmer control inputs, programmer operation enable input 24 .

The device works as follows.

From inputs 19 and 20, the clock pulses arrive at the clock inputs of counters 3 and 4. Adder 6 summarizes the signals at the outputs of counters 3 and 4, and at the moment of overflow of adder 6 at its transfer output appears 1. High frequency pulses continue to arrive at counter 3. After overflow and subsequent automatic reset of the counter 3 1m at the transfer output of the adder 6 is changed to O. However, the counter 3 continues to count, and at the moment of overflow of the adder 6 1 again appears at its transfer output. The process then repeats. The overflow time of the adder 6 depends on which number is recorded in the counter 4. The higher this number is, the earlier the adder 6 will overflow and, consequently, the lower its transfer output is over 1.

Thus, at the transfer output of the adder 6, pulses appear, the duration of which depends on the state of the outputs of the reversible counter 4. When the pulse arrives at the input 20, the state of the outputs of the reversible counter changes, which in turn leads to a change in the duration of the pulses the output of the transfer of the adder 6,

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which arrive at the input of the distributor 7 pulses and are applied with it through the key block 11 to the windings of the stepping motor 12. Each low-frequency pulse fed to the clock input of the reversing counter 4 results in a discrete rotation of the shaft of the stepping motor 12. The direction of rotation of the shaft depends on the direction the counter of the reversible counter 4, which is controlled by the signals on the input 23. For the correct operation of the distributor 7 pulses, the outputs of the higher bits of the reversing counter 4 are connected to its inputs.

Before starting the programming, an initial installation signal is applied to input 16, while the outputs of the reverse 4 and second binary 2 counters are set to O. The shaft position sensor 13 is also set to O. By means of clamps, the ROM circuit is installed in the programmer. A pulse is then applied to input 18, which is recorded in counter 2 and forms the address of the entry. Next, the motor shaft 12 is rotated by one angular pitch, fixed by the shaft position sensor 13. In this case, the binary number corresponding to the given position of the motor shaft is recorded in the reversible counter 4. After that, an input signal is applied to the input 22, and the output state of the reversible counter 4 is recorded in the subtractive counter 5. At the next time point, a signal is given to the input 17 and the trigger 8 is set to state 1 (if, when it is first turned on, the trigger 8 is set to state 1, the first impulse from transfer output of subtractive counter 5 sets it to state O, therefore no presetting of the trigger is required); I from the output of the trigger 8 is applied to the second input of the element 9. At the same time, the pulses from the input 21 pass through the element 9 and go further to the shaper 1, as well as through the element 10 of the delay to the clock input of the subtractive counter 5. The pulse that came to the input driver 1, causes the latter to produce pulses of the required shape and duration and writes 1 to the corresponding bit of the ROM circuit. After a certain period of time sufficient for

writing 1 to the ROM circuit, the delay element 10 generates a pulse that enters the clock input of the downloader counter 5 and reduces its contents by 1. With the arrival of the next pulse, the input 21 process repeats and 1 is written to the next bit of the ROM circuit. as long as the contents of subtractive counter 5 do not decrease to zero and the pulse from its transfer output does not flip trigger 8 to state O. From the output of trigger 8 O is applied

98386

counters, adder, trigger, AND element, delay element, first and second switches, outputs of the second counter are connected to the inputs of the first group of information inputs of the adder, the output of which is through the normally closed contact of the switch JQ pulses, the output of the third bits of the third counter connected to the inputs of the second group of the adder and the inputs of the preset of the fourth counter, the information outputs of which are

to element 9 and locks it. Impul-j with the second group of address outputs

The inputs from input 21 can no longer pass through the element I. The recording process is terminated.

After completion of the recording process at this address, the programmer presses the Control button of the switch 14. At the same time, the input of the distributor 7 is connected to the output of the ROM circuit, and the clock input of the subtractive counter 5 is connected to the input 19. Counter 5 begins to poll the bits of the ROM circuit at a high frequency according to the specified counter 2 address. As a result, the sequence of pulses appears at the output of the ROM circuit as at the transfer output of the adder 6, and therefore the position of the motor shaft 12 does not change. However, if the bits of the ROM 1 are not recorded in some bits of the circuit, then the duty cycle of the pulses at its output of the other and the shaft of the engine 12 turns in one direction or another. In this case, you should repeat the recording process.

Claims (1)

Invention Formula A programmer comprising a first address counter, a write pulse former, the output of which is a recording output of the programmer information, a synchronization input and the initial setup of the first counter are an input of the address of the programmer, the output of the first counter is the first address output of the programmer, characterized in that in order to increase productivity, a pulse distributor, a key block, a stepper motor, a sensor, a second, third and fourth are entered into it. the programmer, the overflow output of the fourth counter is connected to the trigger installation input, the output of which is connected to the first input of the AND element The 20 output of which is connected to the inputs of the world record recorder and the delay element whose output through a normally closed contact of the second switch is connected to the synchronization input of four 25th counter, the outputs of the higher bits to the third counter are connected to the control input of the distributor, the initial installation input of the third counter is connected to the input – initial installation 30 ki programmer, normally closed contact of the first switch to the control input of the programmer, in synchronization of the second counter is connected to the normally open contact of the second switch and is the first synchronization input of the programmer, the synchronization input of the third counter is the second input of the programmer synchronization , the input of the resolution of the account of the third counter is the input of the resolution of operation of the programmer; the input of the control of the direction of the account of the third counter is the first input of the control of the program mode Mataram 45, the recording control input of the fourth counter is the second control input of the programmer mode, the input of the initial installation of the trigger is the third control input of the direct mode 50 grammar, the second input of the element I is the third input of the device synchronization, the outputs of the distributor are connected to the inputs of the key block, the output of which is connected to the inputs of steps rc-motor connected to the sensor. 35 40 the programmer, the overflow output of the fourth counter is connected to the trigger installation input, the output of which is connected to the first input of the AND element, the output of which is connected to the inputs of the recording driver and the delay element, the output of which is connected via the normally closed contact of the second switch to the synchronization input of the fourth counter, the outputs of the higher bits of the third counter are connected to the control inputs of the distributor, the initial installation input of the third counter is connected to the input of the initial installation of the programmer The normally closed contact of the first switch is the control input of the programmer, the synchronization input of the second counter is connected to the normal but the open contact of the second switch is the first synchronization input of the programmer, the synchronization input of the third counter is the second synchronization input of the programmer, the count input resolution of the third counter is the enable input of the programmer, the count control input of the third counter is the first control input of the programmer mode, The control input of the fourth counter is the second control input of the programmer mode, the initial setup input of the trigger is the third control mode control input. the grammator, the second input of the element I is the third synchronization input of the device, the outputs of the distributor are connected to the inputs of the key block, the outputs of which are connected to the inputs of the stepper motor connected to the sensor.