pico_arduino::PIOManager Class Reference

The PIO subsystem on RP2040 allows you to write small, simple programs for what are called PIO state machines, of which RP2040 has eight split across two PIO instances. A state machine is responsible for setting and reading one or more GPIOs, buffering data to or from the processor (or RP2040’s ultra-fast DMA subsystem), and notifying the processor, via IRQ or polling, when data or attention is needed. More...

#include <PicoPIOManager.h>

Public Member Functions
PIOManager &	begin ()
PIOManager	config (pio_sm_config config)
PIOManager	pin (int pin)
PIOManager	pio (PIO pio)
PIOManager	program (pio_program_t program)
PIOManager	setFrequency (uint64_t hz)
PIOManager &	setup (uint64_t hz, int pin, pio_program_t program, pio_sm_config config, PIO pio=pio0)
PIOManager &	start ()
PIOManager &	stop ()

Protected Attributes
pio_sm_config	config
int	pin
PIO	pio = pio0
pio_program_t	program
uint	state_machine

Detailed Description

The PIO subsystem on RP2040 allows you to write small, simple programs for what are called PIO state machines, of which RP2040 has eight split across two PIO instances. A state machine is responsible for setting and reading one or more GPIOs, buffering data to or from the processor (or RP2040’s ultra-fast DMA subsystem), and notifying the processor, via IRQ or polling, when data or attention is needed.

Author

Phil Schatzmann

Copyright

GPLv3

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The documentation for this class was generated from the following file:

• Arduino/ArduinoCore-Pico/PicoPIOManager.h