def generate_fitfile(data=None, endian='<'):
fit_data = (
generate_messages(
# local mesg 0, global mesg 0 (file_id)
mesg_num=0,
local_mesg_num=0,
endian=endian,
field_defs=[
# serial number, time_created, manufacturer
(3, 'uint32z'),
(4, 'uint32'),
(1, 'uint16'),
# product/garmin_product, number, type
(2, 'uint16'),
(5, 'uint16'),
(0, 'enum'),
],
# random serial number, random time, garmin, edge500, null, activity
data=[[558069241, 723842606, 1, 1036, (2**16) - 1, 4]],
))
if data:
fit_data += data
# Prototcol version 1.0, profile version 1.52
header = pack('<2BHI4s', 14, 16, 152, len(fit_data), b'.FIT')
file_data = header + pack('<H', calc_crc(header)) + fit_data
return file_data + pack('<H', calc_crc(file_data))
def _read(self, size):
if size <= 0:
return None
data = self._file.read(size)
self._crc = calc_crc(data, self._crc)
self._bytes_left -= len(data)
return data
def _read(self, size):
if size <= 0:
return ''
data = self._file.read(size)
self._crc = calc_crc(data, self._crc)
self._bytes_left -= len(data)
return data
def generate_fitfile(data=None, endian='<'):
fit_data = (
generate_messages(
# local mesg 0, global mesg 0 (file_id)
mesg_num=0, local_mesg_num=0, endian=endian, field_defs=[
# serial number, time_created, manufacturer
(3, 'uint32z'), (4, 'uint32'), (1, 'uint16'),
# product/garmin_product, number, type
(2, 'uint16'), (5, 'uint16'), (0, 'enum'),
],
# random serial number, random time, garmin, edge500, null, activity
data=[[558069241, 723842606, 1, 1036, (2 ** 16) - 1, 4]],
)
)
if data:
fit_data += data
# Prototcol version 1.0, profile version 1.52
header = pack('<2BHI4s', 14, 16, 152, len(fit_data), b'.FIT')
file_data = header + pack('<H', calc_crc(header)) + fit_data
return file_data + pack('<H', calc_crc(file_data))
def fit_crc ( data ):
return struct.pack('<H', calc_crc(data, 0))
def fit_crc(data):
return struct.pack('<H', calc_crc(data, 0))