pulseio.PulseIn.paused incorrectly reporting state

[sangdrax8]

CircuitPython version

Adafruit CircuitPython 7.3.3 on 2022-08-29; Adafruit Feather RP2040 with rp2040

Code/REPL

import board
import pwmio
import pulseio
import time

# create a PWMOut object on Pin D6.
# duty_cycle (cycle/65535)
print("setting up pwm")
pwm = pwmio.PWMOut(board.D5, frequency=910 )
pwm.duty_cycle = 2**14
# create a PWMin object on Pin D5.
print("setting up pulses")
pulses = pulseio.PulseIn(board.D6,maxlen=100)
pulses.pause()
PULSE_PAUSED = True
pulses.clear()

PULSE_READ_TIME = time.monotonic_ns()
PULSE_READ_DURATION = 9*(10**6)

while True:
    now = time.monotonic_ns()
    if PULSE_PAUSED:
        print("unpausing")
        pulses.resume()
        PULSE_PAUSED = False
        PULSE_READ_TIME = now
        print("should be unpaused")
        print("paused state: ", pulses.paused)
    if  PULSE_READ_DURATION <= now - PULSE_READ_TIME:
        pulses.pause()
        PULSE_PAUSED = True
        if (len(pulses) > 1):
            pulses.popleft()
            pulses.popleft()
            for x in range(len(pulses)-1)[::2]:
                print(pulses[x], pulses[x+1])
            print("\n")
        pulses.clear()
        time.sleep(.5)

Behavior

pwmtest.py output:
setting up pwm
setting up pulses
unpausing
should be unpaused
paused state:  True
277 835
277 835
277 835
278 834
278 834
278 834
278 834

Description

• Resume doesn't change the state of the pulses.paused boolean, even though it does resume.

Additional information

I am trying to test out PWM reading with pulsesio.pulsein. I have generated a PWM signal, and can read it. However as I started to try and use time.monotonic_ns instead of sleeps commands, I started having issues with the paused boolean. I switched to a global boolean and I manually set it each time I pause or resume, and this works fine. I believe the pause and resume are functional since I bumped up my maxlen to 100, and I don't fill it up during a pause after each read of .5 seconds.

I am brand new to both circuitpython as well as this board. As best I understand it, the print for "paused state" after the resume on line 29 should read False, but it is always True (even though it does resume).

[dhalbert]

This was fixed on the 8.0.0 development line in #6450 and perhaps should have been backported to 7.3.x. Try with the 8.0.0-beta.1 release, and I think it will work for you. There are a number of other PulseIn improvements in #6450.