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ports/rp2/boards: Add support for W55RP20-EVB-Pico and WIZNET_PIO_SPI communication. #16476

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ports/rp2/boards: Add support for W55RP20-EVB-Pico and WIZNET_PIO_SPI communication. #16476

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Summary

The W55RP20-EVB-Pico is an evaluation board for the W55RP20, a SiP (System in Package) chip that integrates the W5500 (wired TCP/IP controller) and the RP2040. As a result, both the features of the Raspberry Pi Pico and the W5500 can be utilized.

This PR adds initial support for the W55RP20-EVB-Pico board. The changes included in this PR are as follows:

  • Board configuration files

  • Pin definitions

  • wiznet_pio_spi implementation (as described below)

    The W55RP20 features two identical PIO (Programmable Input/Output) blocks, one of which is used for communication with the W5500. For more detailed information on PIO, please refer to section 3 "PIO" in the RP2040 datasheet.
    The following changes were made to implement this:

    1. New Files Created: New files were created in the ports/rp2 directory:

      • machine_wiznet_pio_spi.c
      • wiznet_pio_spi.c
      • wiznet_pio_spi.h
      • wiznet_pio_spi.pio

    2. Wiznet PIO SPI Communication Enabled: The MICROPY_PY_MACHINE_WIZNET_PIO_SPI definition was added and relevant conditional statements were introduced to enable PIO SPI communication with the W5500.

    3. Utilized Existing Structures: Existing structure definitions from the modemachine file in extmod were utilized for integrating PIO SPI.

Testing

W55RP20-EVB-Pico board successfully tested:

  • LED blink
  • DHCP allocation
  • TCP Loopback Server/Client
  • HTTP client
  • SNTP

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codecov bot commented Dec 24, 2024 •
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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.55%. Comparing base (4e76acc) to head (fe790d7).
Report is 445 commits behind head on master.

Additional details and impacted files 
@@            Coverage Diff             @@
##           master   #16476      +/-   ##
==========================================
- Coverage   98.57%   98.55%   -0.03%     
==========================================
  Files         164      169       +5     
  Lines       21349    22293     +944     
==========================================
+ Hits        21045    21970     +925     
- Misses        304      323      +19

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github-actions bot commented Dec 24, 2024 •
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Code size report:

   bare-arm:    +0 +0.000% 
minimal x86:    +0 +0.000% 
   unix x64:    +0 +0.000% standard
      stm32:    +0 +0.000% PYBV10
     mimxrt:    +0 +0.000% TEENSY40
        rp2: +2488 +0.271% RPI_PICO_W[incl +40(bss)]
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS
  qemu rv32:    +0 +0.000% VIRT_RV32

@wiznet-grace wiznet-grace force-pushed the W55RP20-EVB-Pico branch 4 times, most recently from dcc609e to 033ebc4 Compare December 24, 2024 02:23
@wiznet-grace
rp2/boards/W55RP20-EVB-Pico: Add support for W55RP20-EVB-Pico.
3ba3491 
Signed-off-by: Grace-Koo <Grace@wiznet.io>
@wiznet-grace
rp2: Add functions and define for wiznet_pio_spi support.
341f4b7 
Signed-off-by: Grace-Koo <Grace@wiznet.io>

fix: Fix code formatting.

Signed-off-by: Grace-Koo <Grace@wiznet.io>
@wiznet-grace
extmod/modmachine: Add functions and define for wiznet_pio_spi support.
ce9eafb 
Signed-off-by: Grace-Koo <Grace@wiznet.io>
@wiznet-grace wiznet-grace mentioned this pull request Feb 11, 2025
Open
@wiznet-grace wiznet-grace force-pushed the W55RP20-EVB-Pico branch 2 times, most recently from 5341d03 to f0a8958 Compare February 11, 2025 01:56
@wiznet-grace
rp2/boards/W55RP20-EVB-Pico: Fix typo in mpconfigboard.h.
fe790d7 
Signed-off-by: Grace-Koo <Grace@wiznet.io>
@wiznet-grace wiznet-grace deleted the W55RP20-EVB-Pico branch February 28, 2025 06:15
@wiznet-grace wiznet-grace restored the W55RP20-EVB-Pico branch February 28, 2025 06:17
@wiznet-grace wiznet-grace reopened this Feb 28, 2025
@philippebourcier
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Hi, is this port planned for a future release ?
I've started to work on a big project with this board. 🚀
Cheapest PoE MCU + single chip = 👍

It would be nice to have the official uPython firmware.
Thanks for all the hard work anyway, @dpgeorge 💪

@MilhouseVH
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Hi, is this port planned for a future release ? I've started to work on a big project with this board. 🚀 Cheapest PoE MCU + single chip = 👍

It would be nice to have the official uPython firmware. Thanks for all the hard work anyway, @dpgeorge 💪

I've practically given up waiting on W55RP20 support. It seemed like a good idea but then Wiznet switched to a new SPI library that seems to be going nowhere. I also would only consider official upython firmware releases, not build my own or use the Wiznet fork.

The W5500-EVB-PICO-POE works well with official upython releases (and with the PoE addon board) and is only slightly more expensive, but at least it works.

@wiznet-grace
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Hi, is this port planned for a future release ? I've started to work on a big project with this board. 🚀 Cheapest PoE MCU + single chip = 👍

It would be nice to have the official uPython firmware. Thanks for all the hard work anyway, @dpgeorge 💪

Hi! Thanks for the nice comment — we really appreciate the kind words.
The PR is ready, and we hope it will be included in an upcoming release!

Thank you.
Grace

@wiznet-grace
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I've practically given up waiting on W55RP20 support. It seemed like a good idea but then Wiznet switched to a new SPI library that seems to be going nowhere. I also would only consider official upython firmware releases, not build my own or use the Wiznet fork.

The W5500-EVB-PICO-POE works well with official upython releases (and with the PoE addon board) and is only slightly more expensive, but at least it works.

Thanks for the honest feedback — and totally understandable.
We're sorry for the delay on W55RP20 support. The PR is still open.
Also, thank you for using the W5500-EVB-PICO-POE board — we're glad to hear it's working well with the official firmware.
We appreciate your patience and your perspective!

Thank you.
Grace

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4 participants
@wiznet-grace @philippebourcier @MilhouseVH @dpgeorge