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Overview

boards/vicharak/shrike_lite/doc/index.rst

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.. zephyr:board:: shrike_lite

Overview

Shrike-lite_ is a low-cost, open-source microcontroller + FPGA development board combining an RP2040_ MCU and a 1120 LUT FPGA. It features a PMOD connector, breadboard-compatible layout, integrated FPGA–MCU IO interface, QSPI flash, dual user LEDs, and USB Type-C for power/programming. Ideal for learners, hobbyists, and hardware/software co-design prototyping.

Hardware

  • Microcontroller RP2040_, with a max frequency of 133 MHz
  • Dual ARM Cortex M0+ cores
  • 264 kByte SRAM
  • 4 Mbyte QSPI flash
  • GPIO
  • ADC
  • I2C
  • SPI
  • UART
  • USB Type-C connector
  • Dual user LEDs
  • Debug Connector
  • Reset and boot buttons
  • 1120 LUT SLG47910 Low-Power FPGA
  • Blue LED

Supported Features

.. zephyr:board-supported-hw::

Programming

The shrike_lite board is supported by the following runners:

.. zephyr:board-supported-runners::

There are multiple ways to program and debug the Shrike-lite_ board. All methods are standard to the way of programming and debugging for the Raspberry Pi Pico_.

The supported format for pico series (UF2) is located at :file:build/zephyr/zephyr.uf2 file.

To build the application using USB Type-C connector, you can use the following command:

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: shrike_lite :goals: build

To build the application using Raspberry Pi Debug Probe_, you can use the following command:

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: shrike_lite :goals: build :gen-args: -DRPI_PICO_DEBUG_ADAPTER=cmsis-dap

Flashing the board

To flash the board, you can use the following methods:

  • USB Type-C connector (default)

Press and hold the boot button while plugging in the USB Type-C connector to enter the bootloader mode and show the mass storage volume named "RP1-RP2" in the file manager.

You can either:

Drag and drop the :file:build/zephyr/zephyr.uf2 file to the mass storage volume to program the board. You can also use the following command to program the board:

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: shrike_lite :goals: flash :flash-args: --runner uf2

Or use the following command to program the board to try another runner:

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: shrike_lite :goals: flash :flash-args: --openocd /usr/local/bin/openocd

Debugging the board

To debug the board,

Press and hold the boot button while the Raspberry Pi Debug Probe_ is connected to enter the debug mode and show the mass storage volume named "RP1-RP2" in the file manager.

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: shrike_lite :goals: debug :debug-args: --openocd /usr/local/bin/openocd

.. target-notes::

.. _Shrike-lite: https://vicharak-in.github.io/shrike/introduction.html

.. _Shrike-lite Source Repository: https://github.com/vicharak-in/shrike

.. _RP2040: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf

.. _Raspberry Pi Debug Probe: https://www.raspberrypi.com/documentation/microcontrollers/debug-probe.html

.. _Raspberry Pi Pico: https://www.raspberrypi.com/products/raspberry-pi-pico/