def test_single_shot_timer():
event = Event()
timer = Timer((0, 1000000), event, 0x1)
print("starting single shot timer")
timer.start()
event.read(0x1)
print("timeout")
def test_single_shot_timer():
event = Event()
timer = Timer((0, 1000000), event, 0x1)
print("starting single shot timer")
timer.start()
event.read(0x1)
print("timeout")
def test_periodic_timer():
event = Event()
timer = Timer(0.2, event, 0x1, flags=Timer.PERIODIC)
print("starting periodic timer")
timer.start()
for i in range(3):
event.read(0x1)
print("timeout", i)
timer.stop()
def test_bad_arguments():
# Too long tuple.
with assert_raises(TypeError, "expected tuple of length 2"):
Timer((1, 0, 0), None, 1)
# Bad timeout arguement.
with assert_raises(TypeError, "can't convert NoneType to float"):
Timer(None, None, 1)
# Wrong type of second argument.
with assert_raises(TypeError, "expected <class 'Event'>"):
Timer(1, 1, 1)
def test_periodic_timer():
event = Event()
timer = Timer(0.2, event, 0x1, flags=Timer.PERIODIC)
print("starting periodic timer")
timer.start()
for i in range(3):
event.read(0x1)
print("timeout", i)
timer.stop()
def main(self):
# Start the periodic fill timer.
self.timer = Timer(0.1,
self.event,
EVENT_TIMEOUT,
flags=Timer.PERIODIC)
self.timer.start()
print('Pumbaa Music Player!')
print('Playlist:')
for number, song in enumerate(self.playlist, 1):
print("{}: {}".format(number, song))
# Start the main loop of the music player.
while True:
mask = self.event.read(EVENT_ALL)
if mask & EVENT_STOP:
self.handle_event_stop()
if mask & EVENT_PAUSE:
self.handle_event_pause()
if mask & EVENT_NEXT:
self.handle_event_next()
if mask & EVENT_PREV:
self.handle_event_prev()
if mask & EVENT_PLAY:
self.handle_event_play()
# Play if the state in playing, eyy!
if self.state == STATE_PLAYING:
self.play_chunk()
def main(self):
# Start the periodic fill timer.
self.timer = Timer(0.1,
self.event,
EVENT_TIMEOUT,
flags=Timer.PERIODIC)
self.timer.start()
print('Pumbaa Music Player!')
print('Playlist:')
for number, song in enumerate(self.playlist, 1):
print("{}: {}".format(number, song))
# Start the main loop of the music player.
while True:
mask = self.event.read(EVENT_ALL)
if mask & EVENT_STOP:
self.handle_event_stop()
if mask & EVENT_PAUSE:
self.handle_event_pause()
if mask & EVENT_NEXT:
self.handle_event_next()
if mask & EVENT_PREV:
self.handle_event_prev()
if mask & EVENT_PLAY:
self.handle_event_play()
# Play if the state in playing, eyy!
if self.state == STATE_PLAYING:
self.play_chunk()
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# This file is part of the Pumbaa project.
#
from kernel import Timer
from sync import Event
EVENT = Event()
TIMER = Timer(1, EVENT, 0x1, flags=Timer.PERIODIC)
TIMER.start()
for i in range(10):
EVENT.read(0x1)
print("timeout", i)
TIMER.stop()
class MusicPlayer(object):
def __init__(self):
self.state = STATE_STOPPED
self.dac = Dac([Board.PIN_DAC0, Board.PIN_DAC1], 10000)
self.event = Event()
self.playlist = os.listdir()
self.index = 0
self.fsong = None
self.timer = None
self.identity = None
def main(self):
# Start the periodic fill timer.
self.timer = Timer(0.1,
self.event,
EVENT_TIMEOUT,
flags=Timer.PERIODIC)
self.timer.start()
print('Pumbaa Music Player!')
print('Playlist:')
for number, song in enumerate(self.playlist, 1):
print("{}: {}".format(number, song))
# Start the main loop of the music player.
while True:
mask = self.event.read(EVENT_ALL)
if mask & EVENT_STOP:
self.handle_event_stop()
if mask & EVENT_PAUSE:
self.handle_event_pause()
if mask & EVENT_NEXT:
self.handle_event_next()
if mask & EVENT_PREV:
self.handle_event_prev()
if mask & EVENT_PLAY:
self.handle_event_play()
# Play if the state in playing, eyy!
if self.state == STATE_PLAYING:
self.play_chunk()
def start(self):
if self.identity is None:
self.identity = _thread.start_new_thread(self.main, ())
def play(self):
self.event.write(EVENT_PLAY)
def pause(self):
self.event.write(EVENT_PAUSE)
def stop(self):
self.event.write(EVENT_STOP)
def next(self):
self.event.write(EVENT_NEXT)
def prev(self):
self.event.write(EVENT_PREV)
def handle_event_play(self):
path = self.playlist[self.index]
if self.state == STATE_STOPPED:
self.fsong = open(path, "rb")
self.state = STATE_PLAYING
print("Playing |", path)
def handle_event_pause(self):
if self.state == STATE_PLAYING:
print("Paused |", self.playlist[self.index])
self.state = STATE_PAUSED
def handle_event_stop(self):
if self.state in [STATE_PLAYING, STATE_PAUSED]:
self.fsong.close()
self.state = STATE_STOPPED
def handle_event_next(self):
if self.state in [STATE_PLAYING, STATE_PAUSED]:
self.fsong.close()
self.index += 1
self.index %= len(self.playlist)
self.fsong = open(self.playlist[self.index], "rb")
def handle_event_prev(self):
if self.state in [STATE_PLAYING, STATE_PAUSED]:
self.fsong.close()
self.index -= 1
self.index %= len(self.playlist)
self.fsong = open(self.playlist[self.index], "rb")
def play_chunk(self):
samples = self.fsong.read(1024)
if len(samples) > 0:
self.dac.async_convert(samples)
else:
self.handle_event_next()
print("Playing |", self.playlist[self.index])
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# This file is part of the Pumbaa project.
#
from kernel import Timer
from sync import Event
EVENT = Event()
TIMER = Timer(1, EVENT, 0x1, flags=Timer.PERIODIC)
TIMER.start()
for i in range(10):
EVENT.read(0x1)
print("timeout", i)
TIMER.stop()
def test_empty():
Timer(1.0)
def test_help():
event = Event()
timer = Timer(1, event, 0x1)
help(Timer)
help(timer)
class MusicPlayer(object):
def __init__(self):
self.state = STATE_STOPPED
self.dac = Dac([Board.PIN_DAC0, Board.PIN_DAC1], 10000)
self.event = Event()
self.playlist = os.listdir()
self.index = 0
self.fsong = None
self.timer = None
self.identity = None
def main(self):
# Start the periodic fill timer.
self.timer = Timer(0.1,
self.event,
EVENT_TIMEOUT,
flags=Timer.PERIODIC)
self.timer.start()
print('Pumbaa Music Player!')
print('Playlist:')
for number, song in enumerate(self.playlist, 1):
print("{}: {}".format(number, song))
# Start the main loop of the music player.
while True:
mask = self.event.read(EVENT_ALL)
if mask & EVENT_STOP:
self.handle_event_stop()
if mask & EVENT_PAUSE:
self.handle_event_pause()
if mask & EVENT_NEXT:
self.handle_event_next()
if mask & EVENT_PREV:
self.handle_event_prev()
if mask & EVENT_PLAY:
self.handle_event_play()
# Play if the state in playing, eyy!
if self.state == STATE_PLAYING:
self.play_chunk()
def start(self):
if self.identity is None:
self.identity = _thread.start_new_thread(self.main, ())
def play(self):
self.event.write(EVENT_PLAY)
def pause(self):
self.event.write(EVENT_PAUSE)
def stop(self):
self.event.write(EVENT_STOP)
def next(self):
self.event.write(EVENT_NEXT)
def prev(self):
self.event.write(EVENT_PREV)
def handle_event_play(self):
path = self.playlist[self.index]
if self.state == STATE_STOPPED:
self.fsong = open(path, "rb")
self.state = STATE_PLAYING
print("Playing |", path)
def handle_event_pause(self):
if self.state == STATE_PLAYING:
print("Paused |", self.playlist[self.index])
self.state = STATE_PAUSED
def handle_event_stop(self):
if self.state in [STATE_PLAYING, STATE_PAUSED]:
self.fsong.close()
self.state = STATE_STOPPED
def handle_event_next(self):
if self.state in [STATE_PLAYING, STATE_PAUSED]:
self.fsong.close()
self.index += 1
self.index %= len(self.playlist)
self.fsong = open(self.playlist[self.index], "rb")
def handle_event_prev(self):
if self.state in [STATE_PLAYING, STATE_PAUSED]:
self.fsong.close()
self.index -= 1
self.index %= len(self.playlist)
self.fsong = open(self.playlist[self.index], "rb")
def play_chunk(self):
samples = self.fsong.read(1024)
if len(samples) > 0:
self.dac.async_convert(samples)
else:
self.handle_event_next()
print("Playing |", self.playlist[self.index])
