def _get_next(self):
ret_cmd, ret_args = self._data_queue.get()
if ret_cmd == "error":
raise ClientError("exception raised in SPI communcation process")
elif ret_cmd != "get_next":
raise ClientError
info, buffer = ret_args
data = protocol.decode_output_buffer(buffer, self._mode,
self._num_subsweeps)
if not self._experimental_stitching:
cur_seq_num = info.get("sequence_number")
if cur_seq_num:
if self._seq_num:
if cur_seq_num > self._seq_num + 1:
log.info("missed sweep")
if cur_seq_num <= self._seq_num:
log.info("got same sweep twice")
self._seq_num = cur_seq_num
if self.squeeze:
return info, data
else:
return [info], np.expand_dims(data, 0)
def _get_next(self):
packet = self._recv_packet(allow_recovery_skip=True)
if not isinstance(packet, protocol.UnpackedStreamData):
raise ClientError("got unexpected type of frame")
info = {}
for addr, enc_val in packet.result_info:
try:
reg = protocol.get_reg(addr, self._mode)
val = protocol.decode_reg_val(reg, enc_val)
except protocol.ProtocolError:
log.info("got unknown reg val in result info")
log.info("addr: {}, value: {}".format(
addr, utils.fmt_enc_val(enc_val)))
else:
info[reg.name] = val
data = protocol.decode_output_buffer(packet.buffer, self._mode,
self._num_subsweeps)
if self.squeeze:
return info, data
else:
return [info], np.expand_dims(data, 0)