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"""
by Rob Behary and Eugeniy Mikhailov 2024/06/17
"""
from qolab.hardware.scope import SDS1104X
from qolab.hardware.basic import BasicInstrument
from qolab.hardware.scpi import response2numStr
class SDS2304X(SDS1104X):
"""Siglent SDS2304x scope"""
# unlike SDS1104X, number of divisions matches what is seen on the screen
vertDivOnScreen = 8
horizDivOnScreen = 10
def __init__(self, resource, *args, **kwds):
super().__init__(resource, *args, **kwds)
self.config["Device model"] = "SDS2304X"
self.resource.read_termination = "\n"
self.numberOfChannels = 4
self.maxRequiredPoints = 1000
# desired number of points per channel, can return twice more
@BasicInstrument.tsdb_append
def getTimePerDiv(self):
qstr = "TDIV?"
rstr = self.query(qstr)
# Siglent claims that this model should have same commands as SDS1104X
# However response is different.
# For example we got '2.00E-08S' instead 'TDIV 2.00E-08S'
# expected reply to query: '2.00E-08S'
prefix, numberString, unit = response2numStr(
rstr, firstSeparator=None, unit="S"
)
return float(numberString)
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