SU1322443A1 - Polyfunctional synchronizing device with programmed control - Google Patents

Abstract

The invention is intended for use in pulse registration systems. The purpose of the invention is to extend the functionality of the device. The synchronization device contains a program control unit 1, a program-controlled counter block 5, and T-triggers 6 and 7. The introduction of a triggered pulse generator 2, a pulse shaper 3, a single-vibrator 4, element 2 and 8, and element HE 9 provide the possibility of on-line reprogramming parameters of a series of output pulses. 2 Il. 00 1C to 4 CO

Description

The invention is intended for use in pulse registration systems, in particular for controlling the operation of an analog-digital converter.

The purpose of the invention is to expand the functionality by providing the ability to quickly reprogram the parameters of the series of output pulses.

FIG. 1 is a functional diagram of a software-controlled multifunctional synchronization device; in fig. 2 - time diagram of the device.

A software-controlled multifunctional synchronizing device contains a software control unit 1, which can be built on a microprocessor, a generator of 2 pulses, a driver of 3 pulses, a single-vibrator 4, three blocks of software-controlled counters combined into one block 5, which can -be performed on the same LSI, two T-flip-flops 6 and 7, element 2 and 8 and element 9, the output of which is the output of the device.

The outputs of the program control unit are connected to the inputs 5.1.1-5.1.12 of the blocks of program-controlled meters. The first input of the device, which is connected with the triggering input, is connected to the C-input of the T-flip-flop 6, the output of which is connected to the gate inputs 5.1.14 of the first and 5.3.2 of the third block 5 of the counters. The second input bus of the device, which is a clock input, is connected to the input of the imaging unit 3 pulses, the output of which is connected to the input of the starting generator 2 pulses, the counting input 5.1.13 of the first counter block and the first input of element 2И 8. The output of the starting generator 2 pulses is connected to counting input 5.2.1 of the second meter block. Output 5.1.15 of the first meter block is connected to the C input of the T flip-flop 7, the output of which is connected to the second input of the element 2I 8, the output of which is connected to the gate gate 5.2.2 of the second meter block, and its output 5.2.3 is connected to the input of the element NO 9, the output of which is connected to the counting input 5.3.1 of the third meter block and to the output of the device. Output 5.3.4 of the third block of counters is connected to the input of one-shot 4, the output of which is connected to the S-inputs of T-flip-flops 6 and 7.

The device works as follows.

From the program control unit 1, the inputs for the programmed parameter setting of block 5 receive codes and control signals for recording into the counters information about the delay time of the beginning of the sequence TI (counter 51), the number of pulses in the sequence (counter 53), the time delay between the start of the clock pulse and weekends

0

five

0

five

0

five

0

five

0

five

a sync pulse Ta (counter 5.2), as well as control signals (inputs 5.1.9-5.1.12) for storing this information in the internal registers of counters. After the arrival of the trigger pulse on the first input bus, T-flip-flop 6 is set to the operating state, and the enable signal is applied to the gate inputs 5.1.14 and 5.3.2 of the counters 5.1 and 5.3, respectively. Information pulses, which are also used as clocks, are fed to the second input bus of the device and, through the shaper, 3 pulses are fed to the trigger input of the triggered generator of 2 pulses and enable its operation. The pulses are generated by the triggered generator 2 only for the time of the arrival of the clock pulse, after its decline the triggered generator 2 stops working, this is necessary to ensure the stability of the delay T2. At the same time, the clock pulses arrive at the counting input 5.1.13 of the counter 5., which, after counting a certain, programmatically specified number of these pulses, produces a pulse at the output 5.1.15, thereby working out the time interval for delaying the start of a sequence of clock pulses. The pulse from output 5.1.15 sets the T-flip-flop 7, the signals from the output of which allow the clock pulses to pass through element 2 and 8 to the gate input 5.2.2 of the counter 5.2. Its counting input 5.2.1 receives pulses from the generator 2 being started. After counting the software-specified number of pulses from the generator, the first counter produces pulses equal in duration to the period of the generator's pulses, which through the element HE 9 enters the device’s output as an output sync pulse counting input 5.3.1 counter 5.3. The latter performs the delay time of the sync pulse relative to the beginning of the input clock pulse, multiple to the pulse following period from generator 2. The second counter counts the software-specified number of pulses input to input 5.3.1, generates at output 5.3.4 a signal that goes to the one-shot 4, generating a short pulse and resetting device.

The proposed scheme of the synchronizing device makes it possible to isolate from a sequence of pulses a specific series on a triggering pulse and synchronously with each clock pulse of the sequence to generate a sync pulse, programmatically scan the sync pulse on the input pulse.

Claims (1)

Invention Formula Software-controlled multifunctional synchronization device containing a software control block, first, second and third blocks of software-controlled counters, inputs for programmatically setting parameters of which are connected to the outputs of the program control block, the first input bus of the device, the first and second T-flip-flops, characterized in that functionality due to the provision of an operational, reproducible pulse generator, the counting input of the first block of counters and the first input of element 2I, the output of which is connected to the gating, to its input the second block of counters is 5; the first input bus of the device is connected to the C input of the first T flip-flop, the inverse output of which is connected to the gate, the inputs of the first and third blocks of counters, and the output of the triggered pulse generator is connected to the counting of setting the parameters of the series of outputs to the input of the second block of counters, the output of which is pulses, the triggered trigger is entered into it and connected to the input of the HE element, the pulse generator, the second input busbar of which is connected to the output bus of the device, the pulse shaper, the ele- ment device and the to the counter input a ment NOT, element 2I, one-shot, on-third block of counters, while the output is pepper between the output of the third block of the count-j5 block of meters connected to the C-inlets and the inputs of the first and second T-trigg of the second T -three a gera, inverse output of coders, the second input bus of the device is connected to the second input, is connected to the input of the pulse former, that is 2I, and the D inputs of the first and second T-trigger output are connected to the input of the starting transducers with a common bus.  Z JbnJiJb-J L iggsh LTL and Login 1 and Output pulse generator, the counting input of the first block of counters and the first input of element 2I, the output of which is connected to the gate, to its input of the second block of meters, and the first input bus of the device is connected to the C input of the first T-flip-flop, the inverse output of which is connected gating them the inputs of the first and third blocks of counters, and the output of the triggered pulse generator is connected to the counting the input of the second meter block, the output of which is connected to the input of the element NOT, the output of which is connected to the output bus of the device and connected to the counting input of the third meter block, while the output of the first meter block is connected to the C input of the second T-flip-flop The inverse output of which is connected to the second input of element 2I, and the D inputs of the first and second T-flip-flops are connected to the common bus. g g 7 T FIG. 2