RP2350 Platform - new Raspberry Pi Pico 2 with RP2350 microcontroller support?

Describe the problem you have/What new integration you would like

Please consider adding platform support for the new RP2350 MCU and their official Raspberry Pi Pico 2 development board.

RP2350 is the successor and next-generation of RPi RP2040 so guess ESPHome would need to update the RP2040 Platform for it or add another platform?

Raspberry Pi Pico 2 and other developer board from Raspberry Pi's partners will be available now or soon, but the RP2350 SoC itself for those wanting t build their own board or product will be generally available in volume before the end of 2024. To register your interest, and to participate in the Raspberry Pi samples program, head over to the product page.

FYI, a "W" version of the Pico 2 with wireless support expected 'by the end of the year' according the people in the know 😛

Raspberry Pi team writes that the new RP2350 is vastly more sophisticated design than RP2040, however I understand it is supposedly backwards-compatible, though this new model now also offers faster resources, more IO/PIO, support for Arm TrustZone (security architecture), new HSTX peripheral for high-speed data transmission, and support for external QSPI PSRAM.

RP2350 microcontroller also adds an HSTX (High-Speed Serial Transmit) interface adding the PIOs (Programmable IOs) that was introduced on the original Raspberry Pi RP2040 MCU three years ago. The RP2350 MCU now has three PIOs and one HSTX interface going over 8x GPIOs.

However, I believe that the most interesting difference is otherwise probably the fact that the new Raspberry Pi RP2350 MCU features two-modes with dual-core RISC-V or dual-core ARM Cortex-M33 on the chip, meaning that you can either choose to run it in either RISC-V mode or in ARM Cortex-M3 mode, (but not more than two cores active at the same time, meaning that you can actually run in mixed mode with one RISC-V core and one ARM Cortex-M33 core which is probably something that is both unique and a first for a such SoC, so "They're selectable at boot time: Each port into the bus fabric can be connected either to an M33 or a Hazard3 via a mux. You can even, if you're feeling obtuse, run with one of each." Arm/RISC-V switching is explained in the official datasheet:

Many RP2350-based development baords and products are already apparently already in the pipeline:

https://www.raspberrypi.com/for-industry/powered-by/product-catalogue/?category=RP2350

If official Pico2 is hard to find then be ware that SparkFun Pro Micro RP2350 (and DEV-24870) and Adafruit Feather RP2350 (Product ID: 6000) are supposedly among the first of third-parties scheduled to become available to the first third-party boards available with RP2350:

This article from CNX software offers a little more insight into the RP2350 as compared to the RP2040:

https://www.cnx-software.com/2024/08/08/raspberry-pi-pico-2-raspberry-pi-rp2350-dual-core-risc-v-or-arm-cortex-m33-microcontroller/

"The RP2350 embeds both an open-source Hazard3 RISC-V dual-core CPU and a dual-core Cortex-M33, but only one cluster can be used at a given time. Apart from the faster MCU cores and higher SRAM capacity, the RP2350 is about the same as the RP2040, albeit it also adds one extra PIO block bringing the total to three. One important new feature is built-in security when using Arm Cortex-M33 cores with Trustzone and other security features."

As I understand it, the RP2350A package offers also the same pinout as the RP2040 microcontroller, but the company now also adding a larger RP2350B package with additional GPIOs and analog inputs.

Raspberry Pi used the same method as for the RP2040 to derive the RP2350 name. RP stands for “Raspberry Pi”, “2” is the number of cores, “3” refers to the MCU core used (e.g. Cortex-M33), and the last two numbers “4” and “0” use floor(log2(x/16k)) formula to calculate a number representing the SRAM and non-volatile storage capacity inside the chip.

https://www.raspberrypi.com/documentation/microcontrollers/silicon.html#architecture-switching

Please describe your use case for this integration and alternatives you've tried:

Alternative is to use ESPHome with other HW and RP2040 Platform, ESP32 platform, ESP8266 Platform, or ESP8266 Platform:

Ustream forum discussions from before when they leaked the news about this "Forthcoming RP235x" microcontroller:

https://forums.raspberrypi.com/viewtopic.php?t=371165

There is by the way also someone working on an nRF platform for Nordic Semicondiuctor nRF52 and nRF53 familily of MCUs:

PS: Raspberry Pi is offering a $10,000 bounty for the first confirmed break of their new signed boot process on RP2350.:

https://github.com/raspberrypi/rp2350_hacking_challenge

"To get RP2350 hardware into the hands of the engineers most likely to find these flaws, we’ve partnered with the DEF CON hacking convention, which starts today in Las Vegas. This year’s badge is powered by RP2350, and makes a great platform for experimenting with our security architecture."

esphome / feature-requests

RP2350 Platform - new Raspberry Pi Pico 2 with RP2350 microcontroller support? #2837