circuitpython/tests/wipy/adc.py

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2015-09-14 14:03:32 -04:00
'''
ADC test for the CC3200 based boards.
'''
from pyb import ADC
import os
machine = os.uname().machine
if 'LaunchPad' in machine:
adc_pin = 'GP5'
adc_channel = 3
elif 'WiPy' in machine:
adc_pin = 'GP3'
adc_channel = 1
else:
raise Exception('Board not supported!')
adc = ADC(0)
print(adc)
adc = ADC()
print(adc)
adc = ADC(0, bits=12)
print(adc)
apin = adc.channel(adc_channel)
print(apin)
apin = adc.channel(id=adc_channel)
print(apin)
apin = adc.channel(adc_channel, pin=adc_pin)
print(apin)
apin = adc.channel(id=adc_channel, pin=adc_pin)
print(apin)
print(apin.value() > 3000)
print(apin() > 3000)
# de-init must work
apin.deinit()
print(apin)
adc.deinit()
print(adc)
print(apin)
adc.init()
print(adc)
print(apin)
apin.init()
print(apin)
print(apin() > 3000)
# check for memory leaks...
for i in range (0, 1000):
adc = ADC()
apin = adc.channel(adc_channel)
# next ones should raise
try:
adc = ADC(bits=17)
except:
print('Exception')
try:
adc = ADC(id=1)
except:
print('Exception')
try:
adc = ADC(0, 16)
except:
print('Exception')
adc = ADC()
try:
apin = adc.channel(4)
except:
print('Exception')
try:
apin = adc.channel(-1)
except:
print('Exception')
try:
apin = adc.channel(0, pin='GP3')
except:
print('Exception')
apin = adc.channel(1)
apin.deinit()
try:
apin()
except:
print('Exception')
try:
apin.value()
except:
print('Exception')
adc.deinit()
try:
apin.value()
except:
print('Exception')
try:
apin = adc.channel(1)
except:
print('Exception')
# re-init must work
adc.init()
apin.init()
print(apin)
print(apin() > 3000)