def _update_thread(self, instance):
try:
selection = instance.selection
filename = selection[0] if len(selection) else None
if filename:
#Even though we stopped the RX thread, this is OK
#since it doesn't return a value
try:
self.ids.fw_progress.title = "Processing"
self._teardown_json_serial()
except:
import sys, traceback
print "Exception in user code:"
print '-' * 60
traceback.print_exc(file=sys.stdout)
print '-' * 60
pass
self.ids.fw_progress.title = "Progress"
#Get our firmware updater class and register the
#callback that will update the progress gauge
fu = fw_update.FwUpdater()
fu.register_progress_callback(self._update_progress_gauge)
retries = 5
port = None
while retries > 0 and not port:
#Find our bootloader
port = fu.scan_for_device()
if not port:
retries -= 1
sleep(2)
if not port:
self.ids.fw_progress.title = ""
raise Exception("Unable to locate bootloader")
#Go on our jolly way
fu.update_firmware(filename, port)
self.ids.fw_progress.title = "Restarting"
#Windows workaround
if platform == 'win':
self.prompt_manual_restart()
#Sleep for a few seconds since we need to let USB re-enumerate
sleep(3)
else:
alertPopup('Error Loading', 'No firmware file selected')
except Exception as detail:
alertPopup('Error Loading',
'Failed to Load Firmware:\n\n' + str(detail))
if not platform == 'win':
self._restart_json_serial()
self.ids.fw_progress.value = ''
self.ids.fw_progress.title = ""
def _update_thread(self, instance):
try:
selection = instance.selection
filename = selection[0] if len(selection) else None
if filename:
# Even though we stopped the RX thread, this is OK
# since it doesn't return a value
self.ids.fw_progress.title = "Processing"
self._teardown_json_serial()
self.ids.fw_progress.title = "Progress"
# Get our firmware updater class and register the
# callback that will update the progress gauge
fu = fw_update.FwUpdater(logger=Logger)
fu.register_progress_callback(self._update_progress_gauge)
retries = 5
port = None
while retries > 0 and not port:
# Find our bootloader
port = fu.scan_for_device()
if not port:
retries -= 1
sleep(2)
if not port:
self.ids.fw_progress.title = ""
raise Exception("Unable to locate bootloader")
# Go on our jolly way
fu.update_firmware(filename, port)
self.ids.fw_progress.title = "Restarting"
# Sleep for a few seconds since we need to let USB re-enumerate
sleep(3)
else:
alertPopup('Error Loading', 'No firmware file selected')
except Exception as detail:
alertPopup('Error Loading',
'Failed to Load Firmware:\n\n{}'.format(detail))
Logger.error(traceback.format_exc())
self._restart_json_serial()
self.ids.fw_progress.value = ''
self.ids.fw_progress.title = ""