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import socket
import re
from lab_control.oscilloscope import Oscilloscope
class SDS1000XE(Oscilloscope):
PORT = 5025
TIMEOUT = 0.2
AVAILABLE_CHANNELS = range(1, 5)
def __init__(self, address):
self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self._socket.connect((address, SDS1000XE.PORT))
self._socket.settimeout(SDS1000XE.TIMEOUT)
def measureAmplitude(self, channel: int) -> float:
return self._measure(channel, "AMPL")
def measurePeakToPeak(self, channel: int) -> float:
return self._measure(channel, "PKPK")
def measureRMS(self, channel: int) -> float:
return self._measure(channel, "RMS")
def measureFrequency(self, channel: int) -> float:
return self._measure(channel, "FREQ")
def _measure(self, channel: int, code: str) -> float:
assert channel in SDS1000XE.AVAILABLE_CHANNELS
query = f"C{channel}:PAVA? {code}\r\n"
self._socket.sendall(query.encode())
try:
# TODO add code to regex
response = self._socket.recv(4096).decode()
m = re.search(r"C(?P<responseChannel>\d):PAVA .+,(?P<rawMeasurement>.+)V", response)
measurement = float(m.group("rawMeasurement"))
except TimeoutError as e:
measurement = None
return measurement
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