pio_claim_free_sm_and_add_program() function

PIO program to add

Returns the PIO hardware instance or NULL if no PIO is available

Returns the index of the PIO state machine that was claimed

Returns the instruction memory offset of the start of the program

Attempt to load the program \see pio_can_add_program() if you need to check whether the program can be loaded

Determine whether the given program can (at the time of the call) be loaded onto the PIO instance

Remove a program from a PIO instance's instruction memory

Finds a PIO and statemachine and adds a program into PIO memory This variation of pio_claim_free_sm_and_add_program is useful on RP2350 QFN80 where the "GPIO Base" must be set per PIO instance to either address the 32 GPIOs (0->31) or the 32 GPIOS (16-47). No single PIO instance can interact with both pins 0->15 or 32->47 at the same time. This method takes additional information about the GPIO pins needed (via gpi_base and gpio_count), and optionally will set the GPIO base (\see pio_set_gpio_base) of an unused PIO instance if necessary

Determine whether the given program can (at the time of the call) be loaded onto the PIO instance starting at a particular location

Attempt to load the program at the specified instruction memory offset \see pio_can_add_program_at_offset() if you need to check whether the program can be loaded

Removes a program from PIO memory and unclaims the state machine