Make stopWaveform call interrupt callable #5248
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Match the behavior of pre-2.4.2 PWM by allowing stopWaveform to be called from an interrupt. Fixes esp8266#5247
d-a-v
approved these changes
Oct 14, 2018
The actual runtime difference of -O2 vs -O3 is quite small, but -O3 takes ~500 more bytes of code (~300 more in IRAM, ~200 more in PMEM).
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Match the behavior of pre-2.4.2 PWM by allowing stopWaveform to be
called from an interrupt.
Fixes #5247