def run(self):
"""
Flash the device.
If we are sending a custom hex we need to manually read it and copy it
into the micro:bit drive otherwise use uFlash.
"""
try:
if self.path_to_runtime:
if self.python_script:
raise Exception(
"Cannot flash a custom runtime with a Python script")
with open(self.path_to_runtime, "rb") as f_input:
rt_bytes = f_input.read()
with open(
os.path.join(self.path_to_microbit, "micropython.hex"),
"wb",
) as f_output:
f_output.write(rt_bytes)
f_output.flush()
os.fsync(f_output.fileno())
else:
uflash.flash(
paths_to_microbits=[self.path_to_microbit],
python_script=self.python_script,
)
# After flash ends DAPLink reboots the MSD, and serial might not
# be immediately available, so this small delay helps.
time.sleep(0.5)
except Exception as ex:
# Catch everything so Mu can recover from all of the wide variety
# of possible exceptions that could happen at this point.
logger.error(ex)
self.on_flash_fail.emit(str(ex))
def run(self):
"""
Flash the device.
"""
try:
uflash.flash(paths_to_microbits=self.paths_to_microbits,
python_script=self.python_script,
path_to_runtime=self.path_to_runtime)
except Exception as ex:
# Catch everything so Mu can recover from all of the wide variety
# of possible exceptions that could happen at this point.
self.on_flash_fail.emit(str(ex))
def run(self):
"""
Flash the device.
"""
try:
uflash.flash(paths_to_microbits=self.paths_to_microbits,
python_script=self.python_script,
path_to_runtime=self.path_to_runtime)
except Exception as ex:
# Catch everything so Mu can recover from all of the wide variety
# of possible exceptions that could happen at this point.
self.on_flash_fail.emit(str(ex))
def flash(self):
"""
Takes the currently active tab, compiles the Python script therein into
a hex file and flashes it all onto the connected device.
"""
logger.info('Flashing script.')
# Grab the Python script.
tab = self.view.current_tab
if tab is None:
# There is no active text editor.
return
python_script = tab.text().encode('utf-8')
logger.debug('Python script:')
logger.debug(python_script)
if len(python_script) >= 8192:
message = _('Unable to flash "{}"').format(tab.label)
information = _("Your script is too long!")
self.view.show_message(message, information, 'Warning')
return
# Determine the location of the BBC micro:bit. If it can't be found
# fall back to asking the user to locate it.
path_to_microbit = uflash.find_microbit()
if path_to_microbit is None:
# Has the path to the device already been specified?
if self.user_defined_microbit_path:
path_to_microbit = self.user_defined_microbit_path
else:
# Ask the user to locate the device.
path_to_microbit = self.view.get_microbit_path(HOME_DIRECTORY)
# Store the user's specification of the path for future use.
self.user_defined_microbit_path = path_to_microbit
logger.debug('User defined path to micro:bit: {}'.format(
self.user_defined_microbit_path))
# Check the path and that it exists simply because the path maybe based
# on stale data.
logger.debug('Path to micro:bit: {}'.format(path_to_microbit))
if path_to_microbit and os.path.exists(path_to_microbit):
logger.debug('Flashing to device.')
# Flash the microbit
rt_hex_path = self.get_hex_path()
uflash.flash(paths_to_microbits=[path_to_microbit],
python_script=python_script,
path_to_runtime=rt_hex_path)
message = _('Flashing "{}" onto the micro:bit.').format(tab.label)
if (rt_hex_path is not None and os.path.exists(rt_hex_path)):
message = message + _(" Runtime: {}").format(rt_hex_path)
self.editor.show_status_message(message, 10)
else:
# Reset user defined path since it's incorrect.
self.user_defined_microbit_path = None
# Try to be helpful... essentially there is nothing Mu can do but
# prompt for patience while the device is mounted and/or do the
# classic "have you tried switching it off and on again?" trick.
# This one's for James at the Raspberry Pi Foundation. ;-)
message = _('Could not find an attached BBC micro:bit.')
information = _("Please ensure you leave enough time for the BBC"
" micro:bit to be attached and configured"
" correctly by your computer. This may take"
" several seconds."
" Alternatively, try removing and re-attaching the"
" device or saving your work and restarting Mu if"
" the device remains unfound.")
self.view.show_message(message, information)
