5 Commits

Author	SHA1	Message	Date
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