display.clear() does not stop display.show(loop=True, wait=False)

[microbit-carlos]

Reported in the V1 repository, but I think it's actually a V2 only issue:

• display.clear() does not stop looping animations bbcmicrobit/micropython#789

With this programme pressing button A should stop the animation looping forever by using display.clear(), but it only clears the current image displayed and the next animation steps continue.

Pressing B replaces the animation by just displaying a letter and at that point display.clear() works as expected.

from microbit import *

display.show("hello", loop=True, wait=False)
while True:
    sleep(100)
    if button_a.is_pressed():
        display.clear()
    if button_b.is_pressed():
        display.show("X")

In V1 display.clear() does stop the animation.

[davidtkaye]

Can confirm this is a problem on my V2 microbit, also coincidentally shows up on the microbit simulator in the online Python editor (where I first identified it).

[dpgeorge]

Thanks for the report. Should be fixed by a5dd649

[dpgeorge]

@microbit-matt-hillsdon for the simulator you can now remove microbit_hal_display_clear(), per 5177bdc