def generate_chip_key(self, **kwargs):
'''
Generates a valid ``MultiZMQ_IO`` chip key
:param chip_id: ``int`` corresponding to internal chip id
:param io_chain: ``int`` corresponding to daisy chain number
:param address: ``str`` corresponding to the address of the DAQ board
'''
req_fields = ('chip_id', 'io_chain', 'address')
if not all([key in kwargs for key in req_fields]):
raise ValueError('Missing fields required to generate chip id'
', requires {}, received {}'.format(
req_fields, kwargs.keys()))
if not isinstance(kwargs['chip_id'], int):
raise ValueError('chip_id must be int')
if not isinstance(kwargs['io_chain'], int):
raise ValueError('io_chain must be int')
if not isinstance(kwargs['address'], str):
raise ValueError('address must be str')
if kwargs['address'] not in self._io_group_table.inv:
raise KeyError('no known io group for {}'.format(
kwargs['address']))
io_channel = kwargs['io_chain']
if io_channel in self._miso_map:
io_channel = self._miso_map[io_channel]
return Key.from_dict(
dict(io_group=self._io_group_table.inv[kwargs['address']],
io_channel=io_channel,
chip_id=kwargs['chip_id']))
def test_generate_chip_key(zmq_io_obj):
chip_id = 125
io_chain = 2
io_group = 1
expected = Key('{}-{}-{}'.format(io_group, io_chain, chip_id))
assert zmq_io_obj.generate_chip_key(chip_id=chip_id,
io_chain=io_chain) == expected
def test_decode(zmq_io_obj):
io_chain = 1
test_packet = Packet(b'\x01' * Packet.num_bytes)
test_packet.chip_key = Key(1, io_chain, test_packet.chip_id)
test_bytes = dataserver_message_encode([test_packet])
expected = [test_packet]
assert zmq_io_obj.decode(test_bytes) == expected
def test_decode(zmq_io_obj):
chip_id = 64
io_chain = 1
test_packet = Packet(b'\x00\x01\x02\x03\x04\x05\x06')
test_packet.chip_key = Key(1, io_chain, chip_id)
test_bytes = dataserver_message_encode([test_packet])
expected = [test_packet]
assert zmq_io_obj.decode(test_bytes) == expected
def test_encode(zmq_io_obj):
chip_id = 64
io_chain = 1
test_packet = Packet(b'\x00\x01\x02\x03\x04\x05\x06')
test_packet.chip_key = Key(1, io_chain, chip_id)
test_bytes = b'0x0006050403020100 1'
expected = [test_bytes]
assert zmq_io_obj.encode([test_packet]) == expected
def test_encode(zmq_io_obj):
io_chain = 1
test_packet = Packet(b'\x01' * Packet.num_bytes)
test_packet.chip_key = Key(1, io_chain, test_packet.chip_id)
test_bytes = b'0x0101010101010101 1'
if isinstance(test_packet, Packet_v1):
test_bytes = b'0x0001010101010101 1'
expected = [test_bytes]
assert zmq_io_obj.encode([test_packet]) == expected
def config_read_packet_v2():
p = Packet_v2()
p.packet_type = Packet_v2.CONFIG_READ_PACKET
p.chip_id = 123
p.register_address = 10
p.register_data = 23
p.assign_parity()
p.chip_key = Key('1-2-123')
p.direction = 1
return p
def test_parse_chip_key(zmq_io_obj):
chip_id = 62
io_chain = 2
io_group = 1
expected = {
'chip_id': chip_id,
'io_chain': io_chain,
'address': zmq_io_obj._address
}
key = Key('{}-{}-{}'.format(io_group, io_chain, chip_id))
assert zmq_io_obj.parse_chip_key(key) == expected
def data_packet():
p = Packet_v1()
p.packet_type = Packet_v1.DATA_PACKET
p.chipid = 123
p.channel = 7
p.timestamp = 123456
p.dataword = 120
p.fifo_half_flag = 1
p.assign_parity()
p.chip_key = Key('1-2-123')
p.direction = 1
return p
def _parse_configs_v2_4(row, asic_version, *args, **kwargs):
key = Key(row['io_group'],row['io_channel'],row['chip_id'])
if asic_version in ('1','2'):
c = Chip(key,version=int(asic_version))
else:
c = Chip(key,version=asic_version)
d = dict()
for i in range(c.config.num_registers):
d[i] = row['registers'][i]
endian = 'big' if asic_version == '1' else 'little'
c.config.from_dict_registers(d, endian=endian)
return c
def data_packet_v2():
p = Packet_v2()
p.packet_type = Packet_v2.DATA_PACKET
p.chip_id = 123
p.channel_id = 7
p.timestamp = 123456
p.dataword = 120
p.shared_fifo = 1
p.assign_parity()
p.chip_key = Key('1-2-123')
p.direction = 1
p.receipt_timestamp = 123456
return p
def fifo_diagnostics_packet_v2():
p = Packet_v2()
p.enable_fifo_diagnostics = True
p.packet_type = Packet_v2.DATA_PACKET
p.chip_id = 123
p.channel_id = 7
p.timestamp = 123456
p.dataword = 120
p.shared_fifo = 1
p.shared_fifo_events = 5
p.local_fifo_events = 1
p.assign_parity()
p.chip_key = Key('1-2-123')
p.direction = 1
return p
def test_to_file_v2_0_config_read_packet(tmpfile, config_read_packet_v2):
to_file(tmpfile, [config_read_packet_v2], version='2.0')
f = h5py.File(tmpfile, 'r')
assert len(f['packets']) == 1
row = f['packets'][0]
props = dtype_property_index_lookup['2.0']['packets']
new_packet = Packet_v2()
new_packet.chip_key = Key(row[props['io_group']], row[props['io_channel']],
row[props['chip_id']])
new_packet.packet_type = row[props['packet_type']]
new_packet.parity = row[props['parity']]
new_packet.register_address = row[props['register_address']]
new_packet.register_data = row[props['register_data']]
new_packet.direction = row[props['direction']]
print(new_packet)
print(config_read_packet_v2)
assert new_packet == config_read_packet_v2
def test_to_file_v2_0_data_packet(tmpfile, data_packet_v2):
to_file(tmpfile, [data_packet_v2], version='2.0')
f = h5py.File(tmpfile, 'r')
assert len(f['packets']) == 1
row = f['packets'][0]
props = dtype_property_index_lookup['2.0']['packets']
new_packet = Packet_v2()
new_packet.chip_key = Key(row[props['io_group']], row[props['io_channel']],
row[props['chip_id']])
new_packet.packet_type = row[props['packet_type']]
new_packet.trigger_type = row[props['trigger_type']]
new_packet.chip_id = row[props['chip_id']]
new_packet.parity = row[props['parity']]
new_packet.channel_id = row[props['channel_id']]
new_packet.timestamp = row[props['timestamp']]
new_packet.dataword = row[props['dataword']]
new_packet.local_fifo = row[props['local_fifo']]
new_packet.shared_fifo = row[props['shared_fifo']]
new_packet.direction = row[props['direction']]
assert new_packet.timestamp == data_packet_v2.timestamp
assert new_packet == data_packet_v2
def generate_chip_key(self, **kwargs):
'''
Generates a valid ``ZMQ_IO`` chip key
:param chip_id: ``int`` corresponding to internal chip id
:param io_chain: ``int`` corresponding to daisy chain number
'''
req_fields = ('chip_id', 'io_chain')
if not all([key in kwargs for key in req_fields]):
raise ValueError('Missing fields required to generate chip id'
', requires {}, received {}'.format(req_fields, kwargs.keys()))
io_channel = kwargs['io_chain']
if io_channel in self._miso_map:
io_channel = self._miso_map[io_channel]
return Key.from_dict(dict(
io_channel = io_channel,
chip_id = kwargs['chip_id'],
io_group = self._io_group_table.inv[self._address]
))
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()