Python DriverComm Examples

Example #1

File: binary_driver_wrapper.py Project: mroja/openbci

    def __init__(self, addresses, type):
        """Do:
        1) run super constructor to receive configs
        2) run DriverComm constructor that fires binary driver
        3) get json description from the driver (desc_params are required)
        4) store that description in self.configs to share it with other modules
        5) if autostart is set to true:
        6) set driver params from config (sampling_rate and active_channels)
        7) start sampling
        """
        super(BinaryDriverWrapper, self).__init__(addresses=addresses, type=type)
        self._init_got_configs()
        self._mx_addresses = addresses
        context = ctx.get_new_context()
        context['logger'] = self.logger
        DriverComm.__init__(self, self.config, addresses, context)

        desc = self.get_driver_description()
        if desc.startswith('DEVICE OPEN ERROR'):
            self.abort("DEVICE PROBLEM: " + desc + " ...ABORTING!!!")
        self.store_driver_description(desc)

        autostart = self.config.true_val(self.config.get_param('start_sampling'))
        self.logger.info('Automatic start' + str(autostart))

        self.ready()
        if autostart:
            self.set_driver_params()
            self.start_sampling()

Example #2

    def __init__(self, addresses, type):
        """Do:
        1) run super constructor to receive configs
        2) run DriverComm constructor that fires binary driver
        3) get json description from the driver (desc_params are required)
        4) store that description in self.configs to share it with other modules
        5) if autostart is set to true:
        6) set driver params from config (sampling_rate and active_channels)
        7) start sampling
        """
        super(BinaryDriverWrapper, self).__init__(addresses=addresses,
                                                  type=type)
        self._init_got_configs()
        self._mx_addresses = addresses
        context = ctx.get_new_context()
        context['logger'] = self.logger
        DriverComm.__init__(self, self.config, addresses, context)

        desc = self.get_driver_description()
        if desc.startswith('DEVICE OPEN ERROR'):
            self.abort("DEVICE PROBLEM: " + desc + " ...ABORTING!!!")
        self.store_driver_description(desc)

        autostart = self.config.true_val(
            self.config.get_param('start_sampling'))
        self.logger.info('Automatic start' + str(autostart))

        self.ready()
        if autostart:
            self.set_driver_params()
            self.start_sampling()

Example #3

File: amplifier_virtual_discovery.py Project: vjenissr/openbci

def get_description_from_driver():
    conf = PeerConfig('amplifier')
    conf.add_local_param('driver_executable', _AMP_EXECUTABLE)
    conf.add_local_param('samples_per_packet', '4')

    driv = DriverComm(conf, catch_signals=False)
    descr = driv.get_driver_description()
    dic = json.loads(descr)
    driv.terminate_driver()
    return dic

Example #4

File: amplifier_gtec_usb_discovery.py Project: niklasrogers/openbci

def get_description_from_driver(device_path=None):
    conf = PeerConfig('amplifier')
    conf.add_local_param('driver_executable', 'drivers/eeg/cpp_amplifiers/gtec_amplifier')
    conf.add_local_param('samples_per_packet', '4')

    driv = DriverComm(conf, catch_signals=False)
    descr = driv.get_driver_description()
    try:
        dic = json.loads(descr)
    except ValueError, e:
        print "AMPLIFIER ", device_path, "IS PROBABLY BUSY.", 
        print "Invalid channel description: ", descr
        dic = None

Example #5

def get_description_from_driver(device_path=None):
    conf = PeerConfig('amplifier')
    conf.add_local_param('driver_executable',
                         'drivers/eeg/cpp_amplifiers/gtec_amplifier')
    conf.add_local_param('samples_per_packet', '4')

    driv = DriverComm(conf, catch_signals=False)
    descr = driv.get_driver_description()
    try:
        dic = json.loads(descr)
    except ValueError, e:
        print "AMPLIFIER ", device_path, "IS PROBABLY BUSY.",
        print "Invalid channel description: ", descr
        dic = None

Example #6

File: amplifier_tmsi_usb_discovery.py Project: niklasrogers/openbci

def get_description_from_driver(device_path):
    conf = PeerConfig("amplifier")
    conf.add_local_param("driver_executable", "drivers/eeg/cpp_amplifiers/tmsi_amplifier")
    conf.add_local_param("samples_per_packet", "4")
    conf.add_local_param("bluetooth_device", "")
    conf.add_local_param("usb_device", device_path)

    driv = DriverComm(conf, catch_signals=False)
    descr = driv.get_driver_description()
    try:
        dic = json.loads(descr)
    except ValueError, e:
        print "AMPLIFIER ", device_path, "IS PROBABLY BUSY.",
        print "Invalid channel description: ", descr
        dic = None

Example #7

File: amplifier_tmsi_usb_discovery.py Project: mroja/openbci

def get_description_from_driver(device_path):
    conf = PeerConfig('amplifier')
    conf.add_local_param('driver_executable', _AMP_EXECUTABLE)
    conf.add_local_param('samples_per_packet', '4')
    conf.add_local_param('bluetooth_device', '')
    conf.add_local_param('usb_device', device_path)

    driv = DriverComm(conf, catch_signals=False)
    descr = driv.get_driver_description()
    try:
        dic = json.loads(descr)
    except ValueError as e:
        print("AMPLIFIER ", device_path, "IS PROBABLY BUSY.", end=' ')
        print("Invalid channel description: ", descr)
        dic = None

    driv.terminate_driver()
    return dic

Example #8

 def abort(self, error_msg):
     self.set_param('error_details', error_msg)
     DriverComm.abort(self, error_msg)

Example #9

File: binary_driver_wrapper.py Project: mroja/openbci

 def abort(self, error_msg):
     self.set_param('error_details', error_msg)
     DriverComm.abort(self, error_msg)