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""" Real Time Clock based on the nRF-family low power counter """
import time
#class Stim(object):
# def __init__(self):
# self(0)
#
# def __call__(self, v):
# self.c = v
#
# def counter(self):
# return self.c
class RTC(object):
"""Real Time Clock based on the nRF-family low power counter."""
def __init__(self, counter):
self.counter = counter
self.uptime = 0
self.set_localtime((2020, 2, 18, 12, 0, 0, 0, 0))
def update(self):
newcount = self.counter.counter()
split = newcount - self.lastcount
if split == 0:
return False
if split < 0:
split += (1 << 24)
elapsed = split // 8
self.lastcount += elapsed * 8
self.lastcount &= (1 << 24) - 1
self.uptime += elapsed
return True
def set_localtime(self, t):
self.lastcount = self.counter.counter()
if len(t) < 8:
yyyy = t[0]
mm = t[1]
dd = t[2]
HH = t[3]
MM = t[4]
SS = t[5]
t = (yyyy, mm, dd, HH, MM, SS, 0, 0)
lt = time.mktime(t)
self.offset = lt - self.uptime
def get_localtime(self):
self.update()
return time.localtime(self.offset + self.uptime)
def get_time(self):
localtime = self.get_localtime()
return localtime[3:6]
def get_uptime_ms(self):
"""Return the current uptime in milliseconds."""
return self.uptime * 1000
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