SU1698832A1 - Device for testing frequency-time and amplitude-time parameters - Google Patents

Abstract

The invention can be used in the development and debugging of microprocessor (MP) systems. The purpose of the invention, the extension of functionality, is achieved by measuring the amplitude of pulse signals varying in duration, m in K gated points with an interval of g / K. For this purpose, a matching unit 29, an OR 34 logic unit, a phase switch 31, a first 30 and a second 32 multiphase clock oscillators are entered into the device into each measuring channel. The device allows to connect one of the analog-to-digital converters (ACG) once for the duration of the input pulse and record the value of the input signal. In the period between the pulses, the MP system 35 reads this information and prepares the device for the next impact of the input pulse. During one input pulse, information can be obtained at discrete points, and the switch 31 connects one of the outputs of the first generator 30 to the input of the second generator 32 the action time of the next input pulse can be obtained information at other discrete points, while the switch 31 connects the next output of the first generator 30 to the input of the second generator 32. All input signal information is collected per input pulse. Thus, a compromise is reached between the device speed and the number of ADCs. included in scheme 2 or л

Description

AT

with

1 A 2A FOR (C-1) A AND BA

1 A + 1 2A + 1 FOR + 1 (B-ilA + 1

2 А + 2 2А + 2 ЗА + 2 () A + 2

2A FOR (6-1) A

± V

t v

Claims (1)

Claim A control device for frequency-time and amplitude-time parameters, comprising a control unit for collecting and processing data, data transceivers, an address decoder, a signal normalizer consisting of series-connected switches and galvanic isolation nodes, a status register, a reference frequency generator, an interrupt masking register, a switching field, η elements of And, and also η measuring channels, each of which contains a command register, programmable shaper of measuring intervals, invert OR, clock switch, control switch, programmable counter and reference frequency switch, the control inputs of which are connected to the outputs of the reference frequency generator, information inputs - to the information inputs of the input signal switch, control switch, clock switch and the outputs of the command register, the synchronizing input of which connected to the control inputs of the programmable measuring pulse generator, programmable counter and the corresponding outputs of the decoder addresses, and information inputs - to the first bi-directional outputs of the data transceivers, the second bi-directional outputs of which are connected to the corresponding terminals of the control unit, collecting and processing data, in addition, the information inputs of the command register are connected to the information inputs of the programmable time slot generator, programmable counter, masking register interruptions, the first outputs of the device and the outputs of the status register connected by the synchronizing and enabling inputs to the corresponding and the outputs of the address decoder and, respectively, the synchronizing and allowing inputs of the interrupt masking register, the outputs of which are connected to the first inputs of AND elements, the outputs of which are connected to the second outputs of the device, and the second inputs are connected to the outputs of the programmable counters of the corresponding information channels, the resolution input of the programmable counter is connected to the corresponding information input of the status register and the output of the control switch, the clock input of the programmable counter is connected to the output of the comm a clock signal generator whose control inputs are connected to the outputs of the programmable driver, the inverter input and the first input of the switch Input signals, the corresponding inputs of the control switch are connected to the inverter output and the corresponding output of the switching field, the clock input of the programmable measuring pulse shaper is connected to the second output of the input signal switch , the first third, fifth and sixth control inputs of which are connected to the outputs of the switch of the reference frequencies, and the second the fourth and fourth - to the corresponding output of the signal normalizer and the input of the switching field, while the inputs of the address decoder are connected to the output addresses of the control unit, reset and data processing, and the inputs of the signal normalizers are information inputs of the device, characterized in that, in order to expand the functionality devices by measuring the amplitude of pulse signals that vary in duration, a matching unit, an OR element, a switch, are introduced into each measuring channel in analog-to-digital educators, the first clock generator, the second clock generator, while the analog inputs of the analog-to-digital converters are connected to the information input of the device through the matching unit, the clock input of each analog-to-digital converter is connected to one of the outputs of the second clock generator, the input of which is connected to the output of the switch, and the information inputs of the latter are connected to the outputs of the first clock generator, the input of which is connected to the output of a programmable measuring pulse shaper, up the switch inputs and installation inputs of both clock generators are connected to the outputs of the command register, the inputs of the OR element are connected respectively to the command register and the second information input of the control switch, and the output is connected to the resolution input of the programmable measuring pulse generator. Λ 1 1 ! 1 .... G 1 1 l. | η 1 ... I ι \ I X__J ft tA t2A A t (8-l) A tn I l-ll I ... I 1 -I 1 -Il IJ # 1 A 2A BEHIND (Β-ήΑ Η ΒΑ I I 1 |. ·· ί 1 A + t 2A + 1 FOR + 1 (8-f) A + 1 1 1 ·. J____1 7 = 5 / Σ = θ ί Σ = β Σ = β