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moved argument parser into lorawan_toa_cal.py

master
tanupoo 2020-08-31 09:02:01 +09:00
parent ae08c14b83
commit 1758e620c5
2 changed files with 110 additions and 99 deletions
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56
lorawan_toa_cal.py
View File

@ -2,6 +2,7 @@
# http://www.semtech.com/images/datasheet/sx1276.pdf
import math
from argparse import ArgumentParser
def mpsrange(a, b):
'''
@ -94,3 +95,58 @@ def get_toa(n_size, n_sf, n_bw=125, enable_auto_ldro=True, enable_ldro=False,
return ret
def parse_args():
p = ArgumentParser(description="LoRa Time on Air calculator.")
p.add_argument("sf", metavar="SF",
help="Spreading Factor. It should be from 7 to 12, or FSK")
p.add_argument("n_size", metavar="SIZE", type=int,
help="""PHY payload size in byte.
Remember that PHY payload (i.e. MAC frame) consists of
MHDR(1) + MAC payload + MIC(4), or
MHDR(1) + FHDR(7) + FPort(1) + APP + MIC(4).
For example, SIZE for Join Request is going to be 23.
If the size of an application message (APP) is
12, SIZE is going to be 25. """)
p.add_argument("--band-width", action="store", dest="n_bw", type=int,
default=125, metavar="NUMBER",
help="bandwidth in kHz. default is 125 kHz.")
p.add_argument("--disable-auto-ldro", action="store_false",
dest="enable_auto_ldro",
help="disable the auto LDRO and disable LDRO.")
p.add_argument("--enable-ldro", action="store_true", dest="enable_ldro",
help="This option is available when the auto LDRO is disabled.")
p.add_argument("--disable-eh", action="store_false", dest="enable_eh",
help="disable the explicit header.")
p.add_argument("--downlink", action="store_false", dest="enable_crc",
help="disable the CRC field, which is for the LoRaWAN downlink stream.")
p.add_argument("--disable-crc", action="store_false", dest="enable_crc",
help="same effect as the --downlink option.")
p.add_argument("--cr", action="store", dest="n_cr",
type=int, default=1, metavar="NUMBER",
help="specify the CR value. default is 1 as LoRaWAN does.")
p.add_argument("--preamble", action="store", dest="n_preamble",
type=int, default=8, metavar="NUMBER",
help="specify the preamble. default is 8 for AS923.")
p.add_argument("--duty-cycle", action="store", dest="n_duty_cycle",
type=int, default=1, metavar="NUMBER",
help="specify the duty cycle in percentage. default is 1 %%.")
p.add_argument("-v", action="store_true", dest="f_verbose",
default=False,
help="enable verbose mode.")
p.add_argument("-d", action="append_const", dest="_f_debug", default=[],
const=1, help="increase debug mode.")
args = p.parse_args()
if args.sf == "FSK":
args.n_sf = 0
else:
try:
args.n_sf = int(args.sf)
except ValueError:
raise ValueError("ERROR: SF must be a number of 'FSK', "
f"but {opt.sf}")
args.v_de = False
args.debug_level = len(args._f_debug)
return args

55
toa.py
View File

@ -1,58 +1,10 @@
#!/usr/bin/env python
from lorawan_toa_cal import get_toa
import argparse
def parse_args():
p = argparse.ArgumentParser(
description="LoRa Time on Air calculator.")
p.add_argument("n_sf", metavar="SF", type=int,
help="Spreading Factor. It should be from 7 to 12.")
p.add_argument("n_size", metavar="SIZE", type=int,
help="""PHY payload size in byte.
Remember that PHY payload (i.e. MAC frame) consists of
MHDR(1) + MAC payload + MIC(4), or
MHDR(1) + FHDR(7) + FPort(1) + APP + MIC(4).
For example, SIZE for Join Request is going to be 23.
If the size of an application message (APP) is
12, SIZE is going to be 25. """)
p.add_argument("--band-width", action="store", dest="n_bw", type=int,
default=125, metavar="NUMBER",
help="bandwidth in kHz. default is 125 kHz.")
p.add_argument("--disable-auto-ldro", action="store_false",
dest="enable_auto_ldro",
help="disable the auto LDRO and disable LDRO.")
p.add_argument("--enable-ldro", action="store_true", dest="enable_ldro",
help="This option is available when the auto LDRO is disabled.")
p.add_argument("--disable-eh", action="store_false", dest="enable_eh",
help="disable the explicit header.")
p.add_argument("--downlink", action="store_false", dest="enable_crc",
help="disable the CRC field, which is for the LoRaWAN downlink stream.")
p.add_argument("--disable-crc", action="store_false", dest="enable_crc",
help="same effect as the --downlink option.")
p.add_argument("--cr", action="store", dest="n_cr",
type=int, default=1, metavar="NUMBER",
help="specify the CR value. default is 1 as LoRaWAN does.")
p.add_argument("--preamble", action="store", dest="n_preamble",
type=int, default=8, metavar="NUMBER",
help="specify the preamble. default is 8 for AS923.")
p.add_argument("--duty-cycle", action="store", dest="n_duty_cycle",
type=int, default=1, metavar="NUMBER",
help="specify the duty cycle in percentage. default is 1 %%.")
p.add_argument("-v", action="store_true", dest="f_verbose",
default=False,
help="enable verbose mode.")
p.add_argument("-d", action="append_const", dest="_f_debug", default=[],
const=1, help="increase debug mode.")
args = p.parse_args()
args.v_de = False
args.debug_level = len(args._f_debug)
return args
from lorawan_toa_cal import get_toa, parse_args
if __name__ == "__main__" :
opt = parse_args()
if opt.sf != "FSK":
ret = get_toa(opt.n_size, opt.n_sf, n_bw=opt.n_bw,
enable_auto_ldro=opt.enable_auto_ldro,
enable_ldro=opt.enable_ldro,
@ -102,3 +54,6 @@ if __name__ == "__main__" :
print("before ceil(x) : %.3f" % ret["v_ceil"])
else:
print("%.3f" % ret["t_packet"])
else: # FSK
raise NotImplementedError
pass