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| author | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2017-02-05 14:20:17 +0300 |
|---|---|---|
| committer | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2017-02-05 14:20:17 +0300 |
| commit | d5e9ab6e61729f533dbed5c2b6b27307ce6c3b55 (patch) | |
| tree | 727c3606486ac2722726ad9471f37e6f95f7d660 /tests/extmod/machine_pulse.py.exp | |
| parent | bd04ed3e8a4235664743fd4c452091a9ce603011 (diff) | |
| download | micropython-d5e9ab6e61729f533dbed5c2b6b27307ce6c3b55.tar.gz micropython-d5e9ab6e61729f533dbed5c2b6b27307ce6c3b55.zip | |
extmod/machine_pulse: Make time_pulse_us() not throw exceptions.
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.
Diffstat (limited to 'tests/extmod/machine_pulse.py.exp')
| -rw-r--r-- | tests/extmod/machine_pulse.py.exp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/extmod/machine_pulse.py.exp b/tests/extmod/machine_pulse.py.exp index f9a4742181..20d4c10431 100644 --- a/tests/extmod/machine_pulse.py.exp +++ b/tests/extmod/machine_pulse.py.exp @@ -5,5 +5,5 @@ value: 1 value: 0 value: 1 <class 'int'> -OSError -OSError +-2 +-1 |