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d4b61b0017
It requires mp_hal_time_ns() to be provided by a port. This function allows very accurate absolute timestamps. Enabled on unix, windows, stm32, esp8266 and esp32. Signed-off-by: Damien George <damien@micropython.org>
25 lines
444 B
Python
25 lines
444 B
Python
# test utime.time_ns()
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try:
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import utime
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utime.sleep_us
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utime.time_ns
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except (ImportError, AttributeError):
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print("SKIP")
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raise SystemExit
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t0 = utime.time_ns()
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utime.sleep_us(1000)
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t1 = utime.time_ns()
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# Check that time_ns increases.
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print(t0 < t1)
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# Check that time_ns counts correctly, but be very lenient with the upper bound (50ms).
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if 950000 < t1 - t0 < 50000000:
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print(True)
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else:
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print(t0, t1, t1 - t0)
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