Raspberry Pi Pico PIO Emulated UART: Full Analysis of Serial Communication Implemented by Arbitrary
This article introduces implementing UART transmit and receive via RP2040 PIO in MicroPython. It covers experimental wiring, PIO assembly logic, code comparison
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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. PIO Implementing UART Communication 1. Experiment Preparation In the following experiments, we need to insert the Fengya One Board - Grove Interface…
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