def clearDevice(self):
handle = self.getHandle()
handle.timeout = 1
cnt = 0
handle.write("*CLS")
while True:
try:
if cnt>100:
return False
if int(vpp43.read_stb(handle.vi)) & 128:
return True
time.sleep(0.1)
except visa.VisaIOError:
cnt+=1
return False
def waitFullSweep(self):
self.write("*CLS;HLD;TRS;WFS;")
handle = self.getHandle()
handle.timeout = 1
cnt = 0
while True:
try:
if cnt>100:
return False
time.sleep(1)
status = vpp43.read_stb(handle.vi)
if int(status) & 128:
return True
except visa.VisaIOError:
cnt+=1
print sys.exc_info()
return False
def read_stb(self):
stb = vpp43.read_stb(self.f.vi)
return stb
def STB(self):
'''Return the instrument status byte (via a low level operation instead of regular query)'''
from pyvisa import vpp43
return vpp43.read_stb(self.Instrument.vi)
