machine.time_pulse_us() makes V2 unresponsive

[microbit-mark]

micro:bit support: #41888

From user:

This code works as expected on V1, but makes the V2 unresponsive

import machine
dir(machine)
['__name__', 'unique_id', 'reset', 'freq', 'disable_irq', 'enable_irq', 'mem8', 'mem16', 'mem32', 'time_pulse_us']
machine.time_pulse_us(pin0,1)
-2

The -2 timeout is expected with nothing connected to the pin

using MicroPython v1.13 on 2020-11-24; micro:bit v2.0.0-beta.1 with nRF52833.

This code is used in French Python curriculum materials when the micro:bit is connected to an ultrasonic sensor.

Maybe related to #26

[microbit-carlos]

So does the output shown in your code snippet belong to a V1?
Apologies, when you mentioned this before I thought V2 was returning -2 which is why I though it was different that issue #26 (where V2 hangs).

If that is the case we can merge this into #26. If it's not clear if that's the case could you confirm this with the user?

[crouse12]

This issue is the same as
#26

[microbit-mark]

I think the snippet may belong to V1. The timeout does not reproduce for me on V2, but the device becoming unresponsive does. Closing in favour of #26