Commit Graph

6 Commits

Author SHA1 Message Date
Damien George 8f24c86263 tests/extmod_hardware/machine_pwm.py: Convert test to use target_wiring.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 142f8b96bf tests/extmod_hardware/machine_pwm.py: Add pin settings for stm32 port.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 6e9d35b688 tests/extmod_hardware/machine_pwm.py: Round expected timing calculation.
To be slightly more accurate computing the expected low/high times for the
PWM output.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:14 +11:00
Damien George 95b3e72799 tests/extmod_hardware/machine_pwm.py: Add alif pin config.
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Tested on ALIF_ENSEMBLE and OPENMV_AE3 boards.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-04 01:29:35 +11:00
Christian Clauss 8ce7a58be2 tests: Four typos in tests directory.
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Found by codespell.

Signed-off-by: Christian Clauss <cclauss@me.com>
2025-02-25 23:34:53 +11:00
Damien George bdda91fe74 tests/extmod_hardware: Add a test for machine.PWM freq and duty.
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This adds a hardware test for `machine.PWM`.  It requires a jumper wire
between two pins, uses `machine.PWM` to output on one of them, and
`machine.time_pulse_us()` to time the PWM on the other pin (some boards
test more than one pair of pins).

It times both the high and low duty cycle (and hence the frequency) for a
range of PWM frequencies and duty cycles (including full on and full off).

Currently supported on:
- esp32 (needs a minor hack for initialisation, and some tests still fail)
- esp8266 (passes for frequencies 1kHz and less)
- mimxrt / Teensy 4.0 (passes)
- rp2 (passes)
- samd21 (passes for frequencies 2kHz and less)

Signed-off-by: Damien George <damien@micropython.org>
2024-12-11 12:22:15 +11:00