General • Re: RP2040 and RP2350 PIO differences.

However, in hardware/pio.h sm_config_set_in_pin_count() does:

Code:

    c->shiftctrl = (c->shiftctrl & ~PIO_SM0_SHIFTCTRL_IN_COUNT_BITS) |                   ((in_count - 1) << PIO_SM0_SHIFTCTRL_IN_COUNT_LSB);

with what looks like a spurious -1

Looks that way to me, and should be '((in_count & 0x1F) << PIO_SM0_SHIFTCTRL_IN_COUNT_LSB)'.

That's how I've done it in my updates to the MicroPython PIO assembler.

Statistics: Posted by hippy — Wed Aug 28, 2024 12:58 am

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