'Timer' has no attribute 'PERIODIC'

[Arkaik]

Hi everyone,
I'm just getting started with timers and irq and I was trying the example code.
However I have an issue with the initialisation of the timer.
Here is my code:

tim1 = Timer(1, mode=Timer.PERIODIC)
tim1_ch = tim1.channel(Timer.A, freq=100)
tim1_ch.irq(priority=7, trigger=Timer.TIMEOUT, handler=acquireData_cb)

And the return

PYB: soft reboot
Traceback (most recent call last):
  File "main.py", line 42, in <module>
AttributeError: type object 'Timer' has no attribute 'PERIODIC'
MicroPython v1.8.6-607-g9c8a0e9e on 2017-05-01; WiPy with ESP32
Type "help()" for more information.

I was basically running with a custom firmware so I reflashed the last one but still gets the error

>>> import os
>>> os.uname()
(sysname='WiPy', nodename='WiPy', release='1.6.13.b1', version='v1.8.6-607-g9c8a0e9e on 2017-05-01', machine='WiPy with ESP32')

I already had a similar issue on pyBoard with the time module where ticks_ms was not available.

Did someone already had the same problem?

[bucknall]

Hi @Arkaik,

Where are you getting your example code from? Please see https://docs.pycom.io/pycom_esp32/pycom_esp32/tutorial/includes/timers.html for our example code within our documentation.

It's important to note that our timers do not work the same as on the Pyboard.

Thanks!

Alex

[Arkaik]

Hi @bucknall,

I was using this documentation : https://docs.pycom.io/wipy/library/machine.Timer.html

I had not realized yet that wipy documentation and wipy 2.0 was not the same...

Thank you very much, everything is working fine now.

[Arkaik]

@bucknall

As there is not so much documentation about multithreading and interrupts, how could two threads communicate?
I'm looking for a queue-like mecanism but I can't find anything about it neither in Threading or Timers.

Thanks

[Arkaik]

Hi @bucknall, I finally found this library for using queues on micropython.

However, this library need collections.deque and uasynio.core.

1 from collections.deque import deque
2 from uasyncio.core import sleep

I went to the github repository, I downloaded collection.deque but I couldn't find uasynio.core anywhere.

I think I'm not importing libraries correctly because I need to modify the line from collections.deque import deque to from collections import deque

So now I would like to find the uasyncio.core module to be able to use the queue library ^^

I hope I do not need to open a new thread for this question.
If so, I'm sorry ;)