suspect-devices/circuitpython/tests/extmod/machine_pulse.py, branch 2.2.0rc1CircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=2.2.0rc12017-06-10T17:34:38+00:00tests: Convert remaining "sys.exit()" to "raise SystemExit".2017-06-10T17:34:38+00:00Paul Sokolovskypfalcon@users.sourceforge.net2017-06-10T17:14:16+00:00urn:sha1:85d809d1f4e35a511e0a56b3411126e05a31c01bextmod/machine_pulse: Make time_pulse_us() not throw exceptions.2017-02-05T11:20:17+00:00Paul Sokolovskypfalcon@users.sourceforge.net2017-02-05T11:20:17+00:00urn:sha1:d5e9ab6e61729f533dbed5c2b6b27307ce6c3b55
machine.time_pulse_us() is intended to provide very fine timing, including
while working with signal bursts, where each transition is tracked in row.
Throwing and handling an exception may take too much time and "signal loss".
So instead, in case of a timeout, just return negative value. Cases of
timeout while waiting for initial signal stabilization, and during actual
timing, are recognized.
The documentation is updated accordingly, and rewritten somewhat to clarify
the function behavior.
tests/extmod: Add test for machine.time_pulse_us().2016-09-16T13:31:02+00:00Damien Georgedamien.p.george@gmail.com2016-09-16T13:31:02+00:00urn:sha1:b9672bcbe8dd29b61326af8eb026df4d10a8f0ce