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import serial
import re
from lab_control.function_generator import FunctionGenerator
class JDS6600(FunctionGenerator):
AVAILABLE_CHANNELS = [1, 2]
def __init__(self, portName):
self._port = serial.Serial(portName)
self._port.baudrate = 115200
self._port.bytesize = serial.EIGHTBITS
self._port.stopbits = serial.STOPBITS_ONE
self._port.parity = serial.PARITY_NONE
def _sendRequest(self, opcode: str, args: str="") -> str:
request = f":{opcode}={args}.\r\n"
self._port.write(request.encode())
responseRaw = self._port.readline()
return responseRaw.decode().strip()
def closePort(self) -> None:
self._port.close()
def _queryOnOff(self) -> list[str, str]:
# response format: ":r20=0,0."
response = self._sendRequest("r20")
return [response[5], response[7]]
def setOn(self, channel: int) -> None:
assert channel in JDS6600.AVAILABLE_CHANNELS, f"JDS6600: Invalid channel {channel}"
state = self._queryOnOff()
state[channel - 1] = "1"
response = self._sendRequest("w20", f"{state[0]},{state[1]}")
def setOff(self, channel: int) -> None:
assert channel in JDS6600.AVAILABLE_CHANNELS, f"JDS6600: Invalid channel {channel}"
state = self._queryOnOff()
state[channel - 1] = "0"
response = self._sendRequest("w20", f"{state[0]},{state[1]}")
def setFrequency(self, channel: int, frequency: float) -> None:
assert channel in JDS6600.AVAILABLE_CHANNELS, f"JDS6600: Invalid channel {channel}"
assert frequency is not None and frequency >= 0.0 and frequency <= 60e6, f"JDS6600: Invalid frequency {frequency}"
opcode = f"w{23 + channel - 1}"
arg = int(frequency * 100.0)
response = self._sendRequest(opcode, str(arg))
def setAmplitude(self, channel: int, amplitude: float) -> None:
assert channel in JDS6600.AVAILABLE_CHANNELS, f"JDS6600: Invalid channel {channel}"
assert amplitude is not None and amplitude >= 0.0 and amplitude <= 20.0, f"JDS6600: Invalid amplitude {amplitude}"
opcode = f"w{25 + channel - 1}"
arg = int(amplitude * 1000.0)
response = self._sendRequest(opcode, str(arg))
def setFunction(self, channel: int, function: int) -> None:
assert channel in JDS6600.AVAILABLE_CHANNELS, f"JDS6600: Invalid channel {channel}"
assert function is not None and function >= 0 and function <= 16, f"JDS6600: Invalid function code {function}"
opcode = f"w{21 + channel - 1}"
response = self._sendRequest(opcode, str(function))
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