circuitpython/tests/wipy/rtc_irq.py

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'''
RTC IRQ test for the CC3200 based boards.
'''
from pyb import RTC
from pyb import Sleep
import os
import time
machine = os.uname().machine
if not 'LaunchPad' in machine and not 'WiPy' in machine:
raise Exception('Board not supported!')
def rtc_ticks_ms(rtc):
timedate = rtc.now()
return (timedate[5] * 1000) + (timedate[6] // 1000)
rtc_irq_count = 0
def alarm_handler (rtc_o):
global rtc_irq
global rtc_irq_count
if rtc_irq.flags() & RTC.ALARM0:
rtc_irq_count += 1
rtc = RTC()
rtc.alarm(time=500, repeat=True)
rtc_irq = rtc.irq(trigger=RTC.ALARM0, handler=alarm_handler)
# active mode
time.sleep_ms(1000)
rtc.alarm_cancel()
print(rtc_irq_count == 2)
rtc_irq_count = 0
rtc.alarm(time=200, repeat=True)
time.sleep_ms(1000)
rtc.alarm_cancel()
print(rtc_irq_count == 5)
rtc_irq_count = 0
rtc.alarm(time=100, repeat=True)
time.sleep_ms(1000)
rtc.alarm_cancel()
print(rtc_irq_count == 10)
# deep sleep mode
rtc.alarm_cancel()
rtc_irq_count = 0
rtc.alarm(time=50, repeat=True)
rtc_irq.init(trigger=RTC.ALARM0, handler=alarm_handler, wake=Sleep.SUSPENDED | Sleep.ACTIVE)
while rtc_irq_count < 3:
Sleep.suspend()
print(rtc_irq_count == 3)
# no repetition
rtc.alarm_cancel()
rtc_irq_count = 0
rtc.alarm(time=100, repeat=False)
time.sleep_ms(250)
print(rtc_irq_count == 1)
rtc.alarm_cancel()
t0 = rtc_ticks_ms(rtc)
rtc.alarm(time=500, repeat=False)
Sleep.suspend()
t1 = rtc_ticks_ms(rtc)
print(abs(t1 - t0 - 500) < 20)
# deep sleep repeated mode
rtc.alarm_cancel()
rtc_irq_count = 0
rtc.alarm(time=250, repeat=True)
t0 = rtc_ticks_ms(rtc)
rtc_irq = rtc.irq(trigger=RTC.ALARM0, handler=alarm_handler, wake=Sleep.SUSPENDED)
while rtc_irq_count < 10:
Sleep.suspend()
t1 = rtc_ticks_ms(rtc)
print(abs(t1 - t0 - (250 * rtc_irq_count)) < 25)
# next ones must raise
try:
rtc_irq = rtc.irq(trigger=10, handler=alarm_handler)
except:
print('Exception')
try:
rtc_irq = rtc.irq(trigger=RTC.ALARM0, wake=1789456)
except:
print('Exception')