def close(self):
'''
Closes all connections to the USB and, if not inherited, to the
LabJacks. In addition to closing the LabJacks, this will use the
LabJackPython.Close() function to allow another Python kernel to open
these LabJacks.
'''
try:
self.close_usb()
except:
sys.stderr.write(tb.format_exc())
if not self.u3_passed:
try:
self.u3_handle.close()
print("U3 closed.")
except:
sys.stderr.write(tb.format_exc())
if not self.u6_passed:
try:
self.u6_handle.close()
print("U6 closed.")
except:
sys.stderr.write(tb.format_exc())
if not (self.u3_passed or self.u6_passed):
try:
LabJackPython.Close()
print("LabJacks freed for use in other kernels.")
except:
sys.stderr.write(tb.format_exc())
def close(self):
''' Close connections to all cavities as well as connections to the
LabJacks. This does not turn off any of the cavities.
'''
# Close all quenches.
try:
self.close_quenches(self.quench_info.index)
except:
sys.stderr.write(tb.format_exc())
# Close both LabJacks
try:
self.quench_u3.close()
print("U3 closed.")
except:
sys.stderr.write(tb.format_exc())
try:
self.quench_u6.close()
print("U6 closed.")
except:
sys.stderr.write(tb.format_exc())
# Free LabJacks from this kernel/thread
try:
LabJackPython.Close()
print("All LabJacks freed for use in other threads.")
except:
sys.stderr.write(tb.format_exc())
def off_and_close(self):
''' Turn off all SynthUSBs, change all DAC voltages to 0, and close all
connections to everything.
'''
# Turn off all power in all quenches.
self.cavities_off(self.quench_info.index)
# Close all quenches.
self.close_quenches(self.quench_info.index)
# Close both LabJacks.
self.quench_u3.close()
print("U3 closed.")
self.quench_u6.close()
print("U6 closed.")
# Free LabJacks from this kernel/thread.
LabJackPython.Close()
print("All LabJacks freed for use in other threads.")
def close(self):
if self.is_open:
self.device.close()
LabJackPython.Close()
self.is_open = False
