kopia lustrzana https://github.com/micropython/micropython-lib
micropython/net: Add "ntptime" client from main repo.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>pull/525/head
rodzic
cc2cdeb94b
commit
58f8bec54d
|
@ -0,0 +1 @@
|
|||
module("ntptime.py", opt=3)
|
|
@ -0,0 +1,48 @@
|
|||
import utime
|
||||
|
||||
try:
|
||||
import usocket as socket
|
||||
except:
|
||||
import socket
|
||||
try:
|
||||
import ustruct as struct
|
||||
except:
|
||||
import struct
|
||||
|
||||
# The NTP host can be configured at runtime by doing: ntptime.host = 'myhost.org'
|
||||
host = "pool.ntp.org"
|
||||
|
||||
|
||||
def time():
|
||||
NTP_QUERY = bytearray(48)
|
||||
NTP_QUERY[0] = 0x1B
|
||||
addr = socket.getaddrinfo(host, 123)[0][-1]
|
||||
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
||||
try:
|
||||
s.settimeout(1)
|
||||
res = s.sendto(NTP_QUERY, addr)
|
||||
msg = s.recv(48)
|
||||
finally:
|
||||
s.close()
|
||||
val = struct.unpack("!I", msg[40:44])[0]
|
||||
|
||||
EPOCH_YEAR = utime.gmtime(0)[0]
|
||||
if EPOCH_YEAR == 2000:
|
||||
# (date(2000, 1, 1) - date(1900, 1, 1)).days * 24*60*60
|
||||
NTP_DELTA = 3155673600
|
||||
elif EPOCH_YEAR == 1970:
|
||||
# (date(1970, 1, 1) - date(1900, 1, 1)).days * 24*60*60
|
||||
NTP_DELTA = 2208988800
|
||||
else:
|
||||
raise Exception("Unsupported epoch: {}".format(EPOCH_YEAR))
|
||||
|
||||
return val - NTP_DELTA
|
||||
|
||||
|
||||
# There's currently no timezone support in MicroPython, and the RTC is set in UTC time.
|
||||
def settime():
|
||||
t = time()
|
||||
import machine
|
||||
|
||||
tm = utime.gmtime(t)
|
||||
machine.RTC().datetime((tm[0], tm[1], tm[2], tm[6] + 1, tm[3], tm[4], tm[5], 0))
|
Ładowanie…
Reference in New Issue