PINs set to Capacitive Mode last don't wont (excluding P0)

[maybdev]

My Problem
On my micro:bit v2.21, when I set all my pins to Capacitive Mode, the last one that has been set doesn't get detected with the pin_is_pressed function. But if P0 is the last one set to Capacitive, then they all work (including P0).

How To Reproduce

pins.touch_set_mode(TouchTarget.P0, TouchTargetMode.CAPACITIVE)
pins.touch_set_mode(TouchTarget.P1, TouchTargetMode.CAPACITIVE)
pins.touch_set_mode(TouchTarget.P2, TouchTargetMode.CAPACITIVE)

def on_forever():
    if input.pin_is_pressed(TouchPin.P0):
        music.ring_tone(440)
    elif input.pin_is_pressed(TouchPin.P1):
        music.ring_tone(494)
    elif input.pin_is_pressed(TouchPin.P2):
        music.ring_tone(523)
    else:
        music.stop_all_sounds()
basic.forever(on_forever)

In this code, when loaded onto my micro:bit, when I touch P0, then it rings tone 440, if I touch P1, it rings tone 494, but if I touch P2, then nothing will happen. At the very top of the code, if you change P1 to be set to Capacitive last, then P2 will work and ring tone 523, but P1 wont work at all, and if you change P0 to be set to Capacitive last, then ALL the pins will work properly!

More Info
If I use the on_pin_pressed function then all pins will work properly no matter to order of setting, but if the on_pin_pressed function AND the pin_is_pressed function are used at the same time, then the last pin set to Capacitive Mode (excluding P0) will neither work with on_pin_pressed OR pin_is_pressed.

And the bug only occurs on my micro:bit and not in the simulator.

[abchatra]

@carlosperate ?

[maybdev]

@abchatra

Sorry, I don't understand.

[maybdev]

Ok, if I use LED blocks for the pin presses, this bug doesn't happen.
I, myself, am very confused about what this bug even is, and it can be bypassed, so i'm just going to close this bug report.

[martinwork]

@maybdev @microbit-carlos @abchatra
stop all sounds breaks capacitive touch on the last pin.
https://github.com/microsoft/pxt-microbit/blob/master/libs/core/music.ts#L521

It seems to have always been the case, back to MakeCode v3.

In this example, P2 works until button A is pressed.
https://makecode.microbit.org/_KgCbDP7at7f6

[martinwork]

rest for 1 beat breaks it too
https://makecode.microbit.org/_3E2AwfLmJJ5E

In fact it seems any digital/analogue read/write of P0 or P1 breaks P2 touch. I can repeat that in C++.

@maybdev The tones example can work with the audio pin disabled
https://makecode.microbit.org/_WfmUCH1Lt1hw

[microbit-carlos]

@abchatra looks like this is a valid issue in CODAL which is exposed in MakeCode. Up to you if you prefer to keep this close or re-open it until it is resolved.
Thanks Martin for creating the CODAL issue in:

• digital or analogue read or write of a touch pin breaks other touch pin lancaster-university/codal-microbit-v2#462

[abchatra]

Lets close this and track in codal repo.