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6 Commits

Author SHA1 Message Date
Damien George
d336c1b79b extmod/modmachine: Consolidate simple machine headers into modmachine.h. 
The contents of machine_bitstream.h, machine_pinbase.h, machine_pulse.h and
machine_signal.h have been moved into extmod/modmachine.h.

Signed-off-by: Damien George <damien@micropython.org>
 2023-10-26 16:49:27 +11:00
Damien George
89a23a05b3 esp8266: Provide custom machine_time_pulse_us that feeds soft WDT. 
So that the timeout for machine.time_pulse_us() can be large.

Fixes issue #2775.
 2019-07-01 22:53:00 +10:00
Paul Sokolovsky
d5e9ab6e61 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.
 2017-02-05 14:20:17 +03:00
Damien George
75af908c0e extmod: Use mp_raise_OSError helper function. 2016-10-07 13:52:14 +11:00
Damien George
33168081f4 extmod/machine: Add MICROPY_PY_MACHINE_PULSE config for time_pulse_us. 
Since not all ports that enable the machine module have the pin HAL
functions.
 2016-05-31 14:25:19 +01:00
Damien George
4940bee62a extmod: Add machine time_pulse_us function (at C and Python level). 
The C implementation is taken from the DHT driver.
 2016-05-31 13:58:48 +01:00