def find_devices():
"""Return a dictionary of all devices attached to this system.
The dictionary key is the unique ID of the adapter and the dictionary value is the port.
"""
# find out how many devices are attached
num_devices, ports, unique_ids = aardvark_py.aa_find_devices_ext(0, 0)
# get all the available ports and their corresponding unique IDs
num_devices, ports, unique_ids = aardvark_py.aa_find_devices_ext(num_devices, num_devices)
devices = {}
for i in range(len(ports)):
devices[unique_ids[i]] = ports[i]
return devices
def find_devices():
"""Return a dictionary of all devices attached to this system.
The dictionary key is the unique ID of the adapter and the dictionary value is the port.
"""
# find out how many devices are attached
num_devices, ports, unique_ids = aardvark_py.aa_find_devices_ext(0, 0)
# get all the available ports and their corresponding unique IDs
num_devices, ports, unique_ids = aardvark_py.aa_find_devices_ext(
num_devices, num_devices)
devices = {}
for i in range(len(ports)):
devices[unique_ids[i]] = ports[i]
return devices
def __init__(self, uid = None): (num, ports, unique_ids) = aa_py.aa_find_devices_ext(16, 16) if num > 0: ix = 0 if uid: if uid in unique_ids: ix = unique_ids.index(uid) port = ports[ix] if port & aa_py.AA_PORT_NOT_FREE: raise ValueError else: raise ValueError else: while ix < num: port = ports[ix] if port & aa_py.AA_PORT_NOT_FREE: ix += 1 continue break if ix == num: print "No Free Device" raise IndexError else: print "No devices connected" raise IndexError self.aa = aa_py.aa_open(port) self.get_serial_number() aa_py.aa_configure(self.aa, aa_py.AA_CONFIG_GPIO_I2C) aa_py.aa_configure(self.aa, aa_py.AA_TARGET_POWER_NONE) aa_py.aa_configure(self.aa, aa_py.AA_CONFIG_GPIO_I2C)
def test_01_port_ready(self):
"""Tests that PORT_NUMBER is connected and available"""
num, ports, unique_ids = aa_find_devices_ext(16, 16)
self.assertGreater(num, 0) # check that devices have been returned
if num > 0:
# dictionary of form = port : (unique_id, in_use_status)
devices = {}
for i in range(num):
port, in_use_status = AardvarkConnection.get_status(ports[i])
devices[port] = unique_ids, in_use_status
# checks that the port is detected
self.assertEqual(self.port_number in devices.keys(), True)
# checks that it's available
self.assertEqual(devices[self.port_number][1], False)
def __init__(self, aadvark_index=None):
_i2c_bus.__init__(self)
self.bus_gpio_list = [1, 2]
self._has_gpio = True
self._handle = None
self._bitrate = None
if not aardvark_found:
raise BusException('Aardvark libraries not found/installed.')
(num, ports, unique_ids) = aa.aa_find_devices_ext(16, 16)
if (num == 0):
raise BusException('Aardvark i2c/spi host adapter not connected.')
elif (num == -2):
raise BusException(
'Aardvark i2c/spi host adapter never connected.')
else:
self._ports = ports[0]
if (num > 1):
logger.warning(
'More that 1 Aardvark ports found. Selecting 1st one.')
def Open_Aardvark(number=0):
global Aardvark_Handle
(num, ports, unique_ids) = aardvark_py.aa_find_devices_ext(16, 16)
port = None
dongle_id = number
if number == 0 and len(unique_ids) > 0:
port = ports[0]
dongle_id = unique_ids[0]
else:
for i in range(0, len(unique_ids)):
if unique_ids[i] == number:
port = ports[i]
dongle_id = unique_ids[i]
break
if port is None:
raise Exception('Failed to find dongle: ' + str(dongle_id))
Aardvark_Handle = aardvark_py.aa_open(port)
if (Aardvark_Handle <= 0):
raise Exception('Failed to open dongle: ' + str(dongle_id))
else:
print('Using dongle with ID: ' + str(dongle_id) + "\n")
def __init__(self):
_spi_bus.__init__(self)
self.bus_gpio_list = [1, 2]
self._has_gpio = True
self._handle = None
self._bitrate = None
if not aardvark_found:
raise BusException('Aardvark libraries not found/installed.')
(num, ports, unique_ids) = aa.aa_find_devices_ext(16, 16)
if (num == 0):
raise BusException('Aardvark i2c/spi host adapter not connected.')
elif (num == -2):
raise BusException(
'Aardvark i2c/spi host adapter never connected.')
else:
self._ports = ports[0]
if (num > 1):
logger.warning(
'More that 1 Aardvark ports found. Selecting 1st one.')
self.MASKR = int(evkit_config.get('spi', 'maskr'),
2) # SPI's read address mask
def _find_aardvark():
(num, ports, unique_ids) = api.aa_find_devices_ext(16, 16)
for port in ports:
if not (port & api.AA_PORT_NOT_FREE):
return port
raise Exception, 'Could not locate SMBus interface device'
def _find_aardvark():
(num, ports, unique_ids) = api.aa_find_devices_ext(16, 16)
for port in ports:
if not (port & api.AA_PORT_NOT_FREE):
return port
raise Exception, 'Could not locate SMBus interface device'
