4 ms·
RP2040's PIO is more like TI's [PRU] than ESP32's FSM ULP. All 3 are specialized "secondary" processor cores, but PIO & PRU are fast (faster than main CPU for
by nousermane 6y ago
RP2040's PIO is more like TI's [PRU] than ESP32's FSM ULP.
All 3 are specialized "secondary" processor cores, but PIO & PRU are fast (faster than main CPU for bit-banged IO), where ULP is much slower (but low-power).
[PRU] https://beagleboard.org/pru https://beagleboard.org/pru