def test_min_example(capsys):
from larpix.larpix import Controller, Packet
from larpix.io.fakeio import FakeIO
from larpix.logger.stdout_logger import StdoutLogger
controller = Controller()
controller.io = FakeIO()
controller.logger = StdoutLogger(buffer_length=0)
controller.logger.enable()
chip1 = controller.add_chip('1-1-1') # (access key)
chip1.config.global_threshold = 25
controller.write_configuration('1-1-1', 25) # chip key, register 25
assert capsys.readouterr(
).out == '[ Chip key: 1-1-1 | Chip: 1 | Config write | Register: 25 | Value: 16 | Parity: 1 (valid: True) ]\nRecord: [ Chip key: 1-1-1 | Chip: 1 | Config write | Register: 25 | Value: 16 | Parity: 1 (valid: True) ]\n'
packet = Packet(b'\x04\x14\x80\xc4\x03\xf2 ')
packet_bytes = packet.bytes()
pretend_input = ([packet], packet_bytes)
controller.io.queue.append(pretend_input)
controller.run(0.05, 'test run')
print(controller.reads[0])
assert capsys.readouterr(
).out == 'Record: [ Chip key: None | Chip: 1 | Data | Channel: 5 | Timestamp: 123456 | ADC data: 120 | FIFO Half: False | FIFO Full: False | Parity: 1 (valid: True) ]\n[ Chip key: None | Chip: 1 | Data | Channel: 5 | Timestamp: 123456 | ADC data: 120 | FIFO Half: False | FIFO Full: False | Parity: 1 (valid: True) ]\n'
def test_tutorial(capsys, tmpdir, temp_logfilename):
from larpix.larpix import Controller, Packet
from larpix.io.fakeio import FakeIO
from larpix.logger.stdout_logger import StdoutLogger
controller = Controller()
controller.io = FakeIO()
controller.logger = StdoutLogger(buffer_length=0)
controller.logger.enable()
chip_key = '1-1-5'
chip5 = controller.add_chip(chip_key)
chip5 = controller.get_chip(chip_key)
from larpix.larpix import Key
example_key = Key('1-2-3')
assert example_key.io_group == 1
assert example_key.io_channel == 2
assert example_key.chip_id == 3
example_key.to_dict()
chip5.config.global_threshold = 35 # entire register = 1 number
chip5.config.periodic_reset = 1 # one bit as part of a register
chip5.config.channel_mask[20] = 1 # one bit per channel
controller.write_configuration(chip_key) # send all registers
controller.write_configuration(chip_key, 32) # send only register 32
controller.write_configuration(chip_key,
[32, 50]) # send registers 32 and 50
global_threshold_reg = chip5.config.global_threshold_address
packets = chip5.get_configuration_packets(Packet.CONFIG_READ_PACKET)
bytestream = b'bytes for the config read packets'
controller.io.queue.append((packets, bytestream))
controller.read_configuration(chip_key)
packets = [Packet()] * 40
bytestream = b'bytes from the first set of packets'
controller.io.queue.append((packets, bytestream))
packets2 = [Packet()] * 30
bytestream2 = b'bytes from the second set of packets'
controller.io.queue.append((packets2, bytestream2))
controller.start_listening()
# Data arrives...
packets, bytestream = controller.read()
# More data arrives...
packets2, bytestream2 = controller.read()
controller.stop_listening()
message = 'First data arrived!'
message2 = 'More data arrived!'
controller.store_packets(packets, bytestream, message)
controller.store_packets(packets, bytestream2, message2)
packets = [Packet()] * 5
bytestream = b'[bytes from read #%d] '
for i in range(100):
controller.io.queue.append((packets, bytestream % i))
duration = 0.1 # seconds
message = '10-second data run'
controller.run(duration, message)
run1 = controller.reads[0]
first_packet = run1[0] # Packet object
first_ten_packets = run1[0:10] # smaller PacketCollection object
first_packet_bits = run1[0,
'bits'] # string representation of bits in packet
first_ten_packet_bits = run1[0:10, 'bits'] # list of strings
print(run1) # prints the contents of the packets
print(run1[10:30]) # prints 20 packets from the middle of the run
packet = run1[0]
# all packets
packet.packet_type # unique in that it gives the bits representation
packet.chipid # all other properties return Python numbers
packet.chip_key # key for association to a unique chip
packet.parity_bit_value
# data packets
packet.channel_id
packet.dataword
packet.timestamp
assert packet.fifo_half_flag in (1, 0)
assert packet.fifo_full_flag in (1, 0)
# config packets
packet.register_address
packet.register_data
# test packets
packet.test_counter
from larpix.logger.h5_logger import HDF5Logger
controller.logger = HDF5Logger(
filename=temp_logfilename, directory=str(tmpdir), buffer_length=10000
) # a filename of None uses the default filename formatting
controller.logger.enable(
) # opens hdf5 file and starts tracking all communications
controller.logger = HDF5Logger(filename=temp_logfilename,
directory=str(tmpdir),
enabled=True)
controller.verify_configuration()
controller.logger.flush()
controller.logger.disable() # stop tracking
# any communication here is ignored
controller.logger.enable() # start tracking again
controller.logger.is_enabled() # returns True if tracking
controller.logger.disable()
import h5py
datafile = h5py.File(tmpdir.join(temp_logfilename))
assert '_header' in datafile.keys()
assert 'packets' in datafile.keys()
assert 'messages' in datafile.keys()
assert list(
datafile['_header'].attrs) == ['created', 'modified', 'version']
raw_value = datafile['packets'][
0] # e.g. (b'0-246', 3, 246, 1, 1, -1, -1, -1, -1, -1, -1, 0, 0)
raw_values = datafile['packets'][-100:] # last 100 packets in file
packet_repr = raw_values[0:1]
packet_repr['chip_key'] # chip key for packet, e.g. b'1-1-246'
packet_repr['adc_counts'] # list of ADC values for each packet
packet_repr.dtype # description of data type (with names of each column)
datafile.close()