3 ms·
no hardware interrupts? that seems like a big limitation for a microcontroller environment.
by blt 2y ago
no hardware interrupts? that seems like a big limitation for a microcontroller environment.
- Scene_Cast2 2y agoIt only supports hardware interrupts on some platforms, with some pretty hefty limitations (not being able to allocate memory means that a lot of Python stuff is unavailable). I timed the "soft interrupts", those triggered within 80 or so microseconds IIRC.
- jononor 2y agoMicroPython supports interrupts. But on some platform, like ESP32, the callback is scheduled. Preemption is still used, but it adds some microseconds and the delay is a bit variable. So it will work for some things, like reacting to a interrupt from an I2C sensor etc, or button push. But probably not good enough for a high speed protocol (so better use peripherals for that, like RMT in ESP32).