def _bpodcom_read_timestamps(self):
data = self._arcom.read_bytes_array(12)
n_hw_timer_cyles = ArduinoTypes.cvt_uint32(b''.join(data[:4]))
trial_end_micros = ArduinoTypes.cvt_uint64(b''.join(
data[4:12])) # / float(self.hardware.DEFAULT_FREQUENCY_DIVIDER)
trial_end_timestamp = trial_end_micros / float(
self.hardware.DEFAULT_FREQUENCY_DIVIDER)
trial_time_from_micros = trial_end_timestamp - self.trial_start_timestamp
trial_time_from_cycles = n_hw_timer_cyles / self.hardware.cycle_frequency
discrepancy = abs(trial_time_from_micros -
trial_time_from_cycles) * 1000
return trial_end_timestamp, discrepancy
def _bpodcom_get_trial_timestamp_start(self):
data = self._arcom.read_bytes_array(8)
self.trial_start_micros = ArduinoTypes.cvt_uint64(b''.join(data))
return self.trial_start_micros / float(
self.hardware.DEFAULT_FREQUENCY_DIVIDER)
