.. zephyr:board:: rp2350b_core

Overview

The WeAct RP2350B Core is a barebone development board for the RP2350B microcontroller by raspberry pi. It supports running code on either a single Cortex-M33 or a Hazard3 (RISC-V) core.

As with other RP2 boards, there's no support for running any code on the second core.

Hardware

Dual Cortex-M33 or Hazard3 processors at up to 150MHz
520KB of SRAM, and 16MB of on-board flash memory
USB 1.1 with device and host support
Low-power sleep and dormant modes
Drag-and-drop programming using mass storage over USB
48 multi-function GPIO pins including 8 that can be used for ADC
2 SPI, 2 I2C, 2 UART, One 12-bit 500ksps Analogue to Digital - Converter (ADC) with 8 channels, 24 controllable PWM channels
2 Timer with 4 alarms, 1 AON Timer
Temperature sensor
3 Programmable IO (PIO) blocks, 12 state machines total for custom peripheral support
rp2350b_core Schematics_

Supported Features

.. zephyr:board-supported-hw::

Connections and IOs

Blue LED on pin 25.
User button on pin 23.
It is possible to add a second flash or a PSRAM chip to the back of the board. The CS is Pin 0. This is not currently supported in zephyr.

Programming and Debugging

.. zephyr:board-supported-runners::

The overall explanation regarding flashing and debugging is the same as for :zephyr:board:rpi_pico. See :ref:rpi_pico_programming_and_debugging in :zephyr:board:rpi_pico documentation. N.b. OpenOCD support requires using Raspberry Pi's forked version of OpenOCD.

Below is an example of building and flashing the :zephyr:code-sample:blinky application.

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: rp2350b_core/rp2350b/m33 :goals: build flash :flash-args: -r uf2

.. _rp2350b_core Schematics: https://github.com/WeActStudio/WeActStudio.RP2350BCoreBoard/blob/main/HDK/RP2350B_SCH.pdf