PIO Underlying Principles Deep‑Dive: Side‑Set to Instruction Execution
RP2040 PIO includes side‑set, wrap, FIFO join, auto‑push/pull, fractional divider and flexible GPIO mapping.
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Project description
【Preliminary Note】The original hardware example in this article was written based on the RP2040. The actual hardware used in this hands-on demonstration features the W55RP20 as the main controller chip. The circuit logic and UF2 flashing operation principles are universally applicable, with only the main controller model differing. The original chip model mentioned in the circuit descriptions below is provided for reference purposes only. Detailed Explanation of PIO Functions and Features 1. Side-set Characteristics The Side-set feature is designed to simultaneously modify the level (by…
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