Indefinitely "on" Pulsed Signal generation

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Joined: Sat Nov 30, 2019 7:22 pm

Indefinitely "on" Pulsed Signal generation

Post by rvinayak » Sat Nov 30, 2019 7:31 pm


I was trying to produce a sine pulse wave(burst) via a python script using the SCPI interface.

I ran into a problem and was wondering if you could help?

I wanted to produce a 1MHz freq sine wave with number of repeats = 22 and a repeat time of 100. I would like the pulsed wave to be on indefinitely until I pass a specific command to stop.

What I have observed is that the pulsed wave does come on for a short time but then automatically switches off. This is despite me making the SOUR1:BURS:NOR -1.

Could you please help by providing guidance as to how can I make the burst be on indefinetly?

My code below.

import sys
import redpitaya_scpi as scpi

rp_s = scpi.scpi(sys.argv[1])

wave_form = 'sine'
freq = 1000000
ampl = 1
numberOfWaves = 22
repeatTime = 100

rp_s.tx_txt('SOUR1:FUNC ' + str(wave_form).upper())
rp_s.tx_txt('SOUR1:FREQ:FIX ' + str(freq))
rp_s.tx_txt('SOUR1:VOLT ' + str(ampl))

rp_s.tx_txt('SOUR1:BURS:STAT ON')

rp_s.tx_txt('SOUR1:BURS:NCYC ' + str(numberOfWaves))
rp_s.tx_txt('SOUR1:BURS:NOR -1')

rp_s.tx_txt('SOUR1:BURS:INT:PER ' + str(repeatTime))
rp_s.tx_txt('SOUR1:TRIG:SOUR INT')

rp_s.tx_txt('OUTPUT1:STATE ON')
print("Burst on")

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