class SaleaeEventListener(object):
def __init__(self,):
self.analyzer = SquareWaveAnalyzer(CHANNEL_NUMBER)
self.analyzing = False
def on_event(self, event, device_id):
"""Called when an event is broadcast from the Saleae API wrapper."""
if event.id == EVENT_ID_ONCONNECT:
device = PyDevicesManager.get_device(device_id)
if device is not None:
print("Device connected with id %d" % device_id)
device.set_analyzer(self.analyzer)
# There is a long-standing issue with the Logic16 device API where the number of channels
# seems to matter, and also needs to be a power of two. Using 3 channels causes major
# fluctuations in data, but using 4 channels seems much more stable.
device.set_active_channels(list(range(4)))
# Arbitrarily pick 40MHz as the sampling rate
device.set_sampling_rate_hz(40000000)
device.set_use_5_volts(False)
print("Analyzing channel %d with %s" % (CHANNEL_NUMBER, self.analyzer.get_name()))
device.read_start()
self.analyzing = True
elif event.id == EVENT_ID_ONDISCONNECT:
self.stop()
elif event.id == EVENT_ID_ONERROR:
print("\nDevice: %d, Event ID: %d, Event Name: %s, Message: %s" % (device_id, event.id, event.name, event.data))
def stop(self,):
self.analyzing = False
if self.analyzer is not None:
print("\nShutting down %s" % self.analyzer.get_name())
iface = self.analyzer.get_interface()
if iface is not None:
iface.stop()
def __init__(self,):
self.analyzer = SquareWaveAnalyzer(CHANNEL_NUMBER)
self.analyzing = False
