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examples: Updated python gpio isr example

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Example now takes pin number from command line and displays gpio level
when it changes.

Signed-off-by: Henry Bruce <henry.bruce@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Henry Bruce
2016-02-26 13:55:16 -08:00
committed by Brendan Le Foll
parent bc1c3469f5
commit b1fd66c561
1 changed files with 14 additions and 6 deletions
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20
examples/python/hello_isr.py
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@@ -24,6 +24,7 @@
import mraa import mraa
import time import time
import sys
class Counter: class Counter:
count = 0 count = 0
@@ -32,12 +33,19 @@ c = Counter()
# inside a python interupt you cannot use 'basic' types so you'll need to use # inside a python interupt you cannot use 'basic' types so you'll need to use
# objects # objects
def test(args): def test(gpio):
print("wooo") print("pin " + repr(gpio.getPin(True)) + " = " + repr(gpio.read()))
c.count+=1 c.count+=1
x = mraa.Gpio(6) pin = 6;
if (len(sys.argv) == 2):
try:
pin = int(sys.argv[1], 10)
except ValueError:
printf("Invalid pin " + sys.argv[1])
print("Starting ISR for pin " + repr(pin))
x = mraa.Gpio(pin)
x.dir(mraa.DIR_IN) x.dir(mraa.DIR_IN)
x.isr(mraa.EDGE_BOTH, test, test) x.isr(mraa.EDGE_BOTH, test, x)
var = raw_input("Press ENTER to stop")
time.sleep(500) x.isrExit()