conn_params = cbpy.defaultConParams()
cbpy.open(parameter=conn_params)
print("Creating LSL Outlet")
outlet_info = pylsl.StreamInfo(name=STREAM_NAME, type=TYPE, channel_count=len(CHANNEL_NAMES),
nominal_srate=pylsl.IRREGULAR_RATE, channel_format=CHAN_FORMAT, source_id=SOURCE_ID)
outlet_info.desc().append_child_value("manufacturer", "Blackrock")
channels = outlet_info.desc().append_child("channels")
for c in CHANNEL_NAMES:
channels.append_child("channel").append_child_value("label", c)
outlet = pylsl.StreamOutlet(outlet_info)
print("Sending timestamps...")
try:
start_time = pylsl.local_clock()
n_samples = 0
target_isi = 1 / SYNC_RATE
while True:
while (pylsl.local_clock() - start_time) < (n_samples * target_isi):
time.sleep(0.1/SYNC_RATE)
cbpy.trial_config(reset=True, noevent=True, nocontinuous=True, nocomment=True)
res, ts = cbpy.time()
lsl_stamp = pylsl.local_clock()
outlet.push_sample([int(ts)], timestamp=lsl_stamp)
n_samples += 1
except KeyboardInterrupt:
print("Terminating...")
del outlet
cbpy.close()
print ''
n_secs = 5
loop_time = 0.1
n_itrs = int(n_secs / loop_time)
for itr in range(n_itrs):
t_start = time.time()
print '\nitr %d of %d:' % (itr + 1, n_itrs)
# print 'calling cbpy.trial_event()'
# result, trial = cbpy.trial_event(reset=True)
# result, nsp_time = cbpy.time()
print 'calling cbpy.trial_continuous()'
result, trial = cbpy.trial_continuous(reset=True)
result, nsp_time = cbpy.time()
for i in range(len(trial)):
print '# samples:', len(trial[i][1])
print 'result:', result
print 'trial:', trial
print ''
# print 'calling cbpy.time()'
result, nsp_time = cbpy.time()
print 'result:', result
print 'time:', nsp_time
print ''
t_elapsed = time.time() - t_start
if t_elapsed < loop_time:
n_secs = 20
loop_time = 0.1
n_itrs = int(n_secs / loop_time)
last_nsp_time = 0
for itr in range(n_itrs):
t_start = time.time()
print '-' * 79
print '\nitr %d of %d:' % (itr+1, n_itrs)
print ''
# print 'calling cbpy.trial_event(), followed by cbpy.time()'
# print ''
trial_event_result, trial = cbpy.trial_event(reset=True)
time_result, nsp_time = cbpy.time()
n_ts = 0
for list_ in trial:
for unit, unit_ts in enumerate(list_[1]['timestamps']):
n_ts += len(unit_ts)
data = np.zeros((n_ts, 3), dtype=np.int32) # 3 columns: timestamp, chan, unit
idx = 0
for list_ in trial:
chan = list_[0] - nPlay_chan_offset
for unit, unit_ts in enumerate(np.array(list_[1]['timestamps'])):
if len(unit_ts) > 0:
for ts in unit_ts:
if ts < last_nsp_time:
args = (ts, chan, unit, last_nsp_time)
def time(self):
if self.is_connected:
res, time = cbpy.time(instance=self.instance)
return time
else:
return None