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'''
Timer test for the CC3200 based boards.
'''
from machine import Timer
import os
import time
mch = os.uname().machine
if 'LaunchPad' in mch:
pwm_pin = ('GP24')
elif 'WiPy' in mch:
pwm_pin = ('GP24')
else:
raise Exception('Board not supported!')
for i in range(4):
tim = Timer(i, mode=Timer.PERIODIC)
print(tim)
ch = tim.channel(Timer.A, freq=5)
print(ch)
ch = tim.channel(Timer.B, freq=5)
print(ch)
tim = Timer(i, mode=Timer.ONE_SHOT)
print(tim)
ch = tim.channel(Timer.A, freq=50)
print(ch)
ch = tim.channel(Timer.B, freq=50)
print(ch)
tim = Timer(i, mode=Timer.PWM)
print(tim)
ch = tim.channel(Timer.A, freq=50000, duty_cycle=2000, polarity=Timer.POSITIVE)
print(ch)
ch = tim.channel(Timer.B, freq=50000, duty_cycle=8000, polarity=Timer.NEGATIVE)
print(ch)
tim.deinit()
print(tim)
for i in range(4):
tim = Timer(i, mode=Timer.PERIODIC)
tim.deinit()
class TimerTest:
def __init__(self):
self.tim = Timer(0, mode=Timer.PERIODIC)
self.int_count = 0
def timer_isr(self, tim_ch):
self.int_count += 1
timer_test = TimerTest()
ch = timer_test.tim.channel(Timer.A, freq=5)
print(ch.freq() == 5)
ch.irq(handler=timer_test.timer_isr, trigger=Timer.TIMEOUT)
time.sleep_ms(1001)
print(timer_test.int_count == 5)
ch.freq(100)
timer_test.int_count = 0
time.sleep_ms(1001)
print(timer_test.int_count == 100)
ch.freq(1000)
time.sleep_ms(1500)
timer_test.int_count = 0
time.sleep_ms(2000)
print(timer_test.int_count == 2000)
timer_test.tim.deinit()
timer_test.tim.init(mode=Timer.ONE_SHOT)
ch = timer_test.tim.channel(Timer.A, period=100000)
ch.irq(handler=timer_test.timer_isr, trigger=Timer.TIMEOUT)
timer_test.int_count = 0
time.sleep_ms(101)
print(timer_test.int_count == 1)
time.sleep_ms(101)
print(timer_test.int_count == 1)
timer_test.tim.deinit()
print(timer_test.tim)
# 32 bit modes
tim = Timer(0, mode=Timer.PERIODIC, width=32)
ch = tim.channel(Timer.A | Timer.B, period=5000000)
# check for memory leaks...
for i in range(1000):
tim = Timer(0, mode=Timer.PERIODIC)
ch = tim.channel(Timer.A, freq=5)
# next ones must fail
try:
tim = Timer(0, mode=12)
except:
print('Exception')
try:
tim = Timer(4, mode=Timer.ONE_SHOT)
except:
print('Exception')
try:
tim = Timer(0, mode=Timer.PWM, width=32)
except:
print('Exception')
tim = Timer(0, mode=Timer.PWM)
try:
ch = tim.channel(TIMER_A | TIMER_B, freq=10)
except:
print('Exception')
try:
ch = tim.channel(TIMER_A, freq=4)
except:
print('Exception')
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