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add extra assertions to pio.h #2211

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Merged
merged 3 commits into from
Feb 3, 2025
Merged

add extra assertions to pio.h #2211

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efa800b
add extra assertions to pio.h
kilograham Jan 25, 2025
a9fe6e0
add another assert
kilograham Feb 2, 2025
6c62ca1
minor clarifications
kilograham Feb 2, 2025
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4 changes: 4 additions & 0 deletions src/rp2_common/hardware_pio/include/hardware/pio.h
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,10 @@ static_assert(DREQ_PIO0_TX2 == DREQ_PIO0_TX0 + 2, "");
static_assert(DREQ_PIO0_TX3 == DREQ_PIO0_TX0 + 3, "");
static_assert(DREQ_PIO0_RX0 == DREQ_PIO0_TX0 + NUM_PIO_STATE_MACHINES, "");
static_assert(DREQ_PIO1_RX0 == DREQ_PIO1_TX0 + NUM_PIO_STATE_MACHINES, "");
#if NUM_PIOS > 2
static_assert(DREQ_PIO2_TX0 == DREQ_PIO1_RX0 + NUM_PIO_STATE_MACHINES, "");
static_assert(DREQ_PIO2_RX0 == DREQ_PIO2_TX0 + NUM_PIO_STATE_MACHINES, "");
#endif
#define PIO_DREQ_NUM(pio, sm, is_tx) ((sm) + (((is_tx) ? 0 : NUM_PIO_STATE_MACHINES) + PIO_NUM(pio) * (DREQ_PIO1_TX0 - DREQ_PIO0_TX0)))
#endif

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