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Fixed crash on cold RTC boot #130

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Fixed crash on cold RTC boot #130

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20 changes: 14 additions & 6 deletions enviro/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -127,12 +127,6 @@ def stop_activity_led():

# intialise the pcf85063a real time clock chip
rtc = PCF85063A(i2c)
i2c.writeto_mem(0x51, 0x00, b'\x00') # ensure rtc is running (this should be default?)
rtc.enable_timer_interrupt(False)

t = rtc.datetime()
# BUG ERRNO 22, EINVAL, when date read from RTC is invalid for the pico's RTC.
RTC().datetime((t[0], t[1], t[2], t[6], t[3], t[4], t[5], 0)) # synch PR2040 rtc too

# jazz up that console! toot toot!
print(" ___ ___ ___ ___ ___ ___ ")
Expand Down Expand Up @@ -237,6 +231,19 @@ def sync_clock_from_ntp():
logging.info(" - rtc synched")
return True

def init_rtc():
i2c.writeto_mem(0x51, 0x00, b'\x00') # ensure rtc is running (this should be default?)
rtc.enable_timer_interrupt(False)

if not is_clock_set():
sync_clock_from_ntp()

t = rtc.datetime()
RTC().datetime((t[0], t[1], t[2], t[6], t[3], t[4], t[5], 0)) # synch PR2040 rtc too


init_rtc()

# set the state of the warning led (off, on, blinking)
def warn_led(state):
if state == WARN_LED_OFF:
Expand Down Expand Up @@ -498,3 +505,4 @@ def sleep(time_override=None):

# reset the board
machine.reset()