You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
$ pip3 show pymeasure
Name: PyMeasure
Version: 0.13.1
Summary: Scientific measurement library for instruments, experiments, and live-plotting
Home-page: https://github.com/pymeasure/pymeasure
Author: PyMeasure Developers
Author-email:
License: MIT
Location: /home/del/.local/lib/python3.10/site-packages
Requires: numpy, pandas, pint, pyqtgraph, pyserial, pyvisa
Required-by:
To reproduce (start and abort several times)
import logging
import time
import serial
from pymeasure.instruments.hp import HP34401A
log = logging.getLogger('')
logging.getLogger().addHandler(logging.StreamHandler())
log.setLevel(logging.DEBUG)
meter = HP34401A('ASRL/dev/ttyUSB0', timeout=5000, baud_rate=1200, data_bits=8, parity=0)
#meter.adapter.flush_read_buffer() # does not affect
#meter.adapter._read_bytes(-1) # workaround
meter.reset()
meter.clear()
meter.write('SYSTem:REMote')
time.sleep(1)
while True:
print('meter: {}'.format(meter.id))
time.sleep(1)`
Output
No visa library specified, trying to find alternatives.
Environment variable PYVISA_LIBRARY is unset.
Not loading dll_extra_paths because we are not on Windows or Python < 3.8
Automatically found library files: [None, None, None, None, None]
No user defined library files
Did not find IVI binary
SerialSession was correctly imported.
USBSession and USBRawSession were not imported No module named 'usb'.
TCPIPSession was correctly imported.
GPIBSession was not imported No module named 'gpib'.
pyvisa-py is available.
Created library wrapper for py
Created ResourceManager with session 7483050
ASRL/dev/ttyUSB0::INSTR - opening ...
ASRL/dev/ttyUSB0::INSTR - is open with session 9652017
Initializing HP 34401A.
WRITE:*RST
Serial.write b'*RST\r\n'
WRITE:*CLS
Serial.write b'*CLS\r\n'
WRITE:SYSTem:REMote
Serial.write b'SYSTem:REMote\r\n'
WRITE:*IDN?
Serial.write b'*IDN?\r\n'
ASRL/dev/ttyUSB0::INSTR - reading 20480 bytes (last status <StatusCode.success_max_count_read: 1073676294>)
Traceback (most recent call last):
File "/mnt/hd500/workspace/hp.py", line 21, in <module>
print('meter: {}'.format(meter.id))
File "/home/del/.local/lib/python3.10/site-packages/pymeasure/instruments/common_base.py", line 298, in __getattribute__
return super().__getattribute__(name)
File "/home/del/.local/lib/python3.10/site-packages/pymeasure/instruments/instrument.py", line 133, in id
return self.ask("*IDN?").strip()
File "/home/del/.local/lib/python3.10/site-packages/pymeasure/instruments/common_base.py", line 387, in ask
return self.read()
File "/home/del/.local/lib/python3.10/site-packages/pymeasure/instruments/instrument.py", line 152, in read
return self.adapter.read(**kwargs)
File "/home/del/.local/lib/python3.10/site-packages/pymeasure/adapters/adapter.py", line 108, in read
read = self._read(**kwargs)
File "/home/del/.local/lib/python3.10/site-packages/pymeasure/adapters/visa.py", line 172, in _read
return self.connection.read(**kwargs)
File "/home/del/.local/lib/python3.10/site-packages/pyvisa/resources/messagebased.py", line 485, in read
message = self._read_raw().decode(enco)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe1 in position 0: ordinal not in range(128)
Closing ResourceManager (session: 7483050)
ASRL/dev/ttyUSB0::INSTR - closing
ASRL/dev/ttyUSB0::INSTR - is closed
ASRL/dev/ttyUSB0::INSTR - closing
The text was updated successfully, but these errors were encountered:
The input buffer is not cleared.
Version
To reproduce (start and abort several times)
Output
The text was updated successfully, but these errors were encountered: