def __init__(self, fw, channel = 16, serial_port = None, snr = None):
'''
Ininitialises the OTA Flasher class which handles flashing the devboard
with the needed OTA Server firmware and the update file for the OTA Client.
The said devboard shall become the OTA Server which shall propagate the
image on the Zigbee network.
Keyword arguments:
fw -- path to the update file for the OTA Client
channel -- a 802.15.4 channel number, on which the OTA Server shall operate (default 16)
serial_port -- a serial port of the connected devboard which shall be flashed with OTA Server
snr -- a JLink serial number of the connected devboard which shall be flashed with OTA Server
Note: only one parameter out of (serial_port, snr) must be provided, since the superclass
constructor shall handle resolving the rest.
'''
# Call the superclass constructor
Flasher.__init__(self, serial_port, snr)
# Create a Intel Hex out of the Zigbee Update file
ih = IntelHex()
update = open(fw, 'rb').read()
ih.puts(OTAFlasher.OTA_UPDATE_OFFSET, update)
self.update_firmware_hex = fw + '.hex'
ih.write_hex_file(self.update_firmware_hex)
# Open the serial channel to the devboard and save the 802.15.4 channel
self.ser = Serial(self.serial_port, 115200)
self.channel = channel
def __init__(self, serial_port = None, snr = None):
Flasher.__init__(self, serial_port, snr)