data = np.empty(wvfm_stop-wvfm_start, dtype=np.dtype('i2'))
d_volt, d_time = np.empty(wvfm_stop-wvfm_start, dtype=np.dtype('f'+precision)), np.empty(wvfm_stop-wvfm_start, dtype=np.dtype('f'+precision))
N = 0
while not SIGINT and not SIGTERM:
try:
today = datetime.today()
if (today.date() > lastday.date()):
lastday = today
counter = 0
else: counter += 1
ofile = odir + '/' + fileprefix + today.strftime('%Y-%m-%d_') + "{:0>4}".format(counter) + ".bin"
while int(sOsci.ask("ACQ:STATE?")) != 0:
time.sleep(0.1)
sOsci.instrument().write('CURVE?\n')
buf = sOsci.instrument().read_raw()
# start new acquisition
sOsci.cmd("ACQ:STATE ON")
""" buf[] =
0 = #
1 = N
2..2+N-1 = n-data-bytes
2+N..len(buf)-1 = data
"""
N = int(buf[1])
data = np.frombuffer(buf[2+N:-1], np.dtype('i2'))
np.copyto(d_volt, data, casting='unsafe')
d_volt -= yoffs
