| .. zephyr:board:: xiao_rp2040 |
| |
| Overview |
| ******** |
| |
| The XIAO RP2040 is an IoT mini development board from Seeed Studio. |
| It is equipped with an RP2040 SoC, an on-board WS2812 addressable |
| LED, and USB connector. The USB bootloader allows it |
| to be flashed without any adapter, in a drag-and-drop manner. |
| |
| For more details see the `Seeed Studio XIAO RP2040`_ wiki page. |
| |
| Hardware |
| ******** |
| |
| The Seeed Studio XIAO RP2040 is a low-power microcontroller that |
| carries the powerful Dual-core RP2040 processor with a flexible |
| clock running up to 133 MHz. There is also 264KB of SRAM, and 2MB of |
| on-board Flash memory. |
| |
| There are 14 GPIO PINs on Seeed Studio XIAO RP2040, on which there |
| are 11 digital pins, 4 analog pins, 11 PWM Pins,1 I2C interface, |
| 1 UART interface, 1 SPI interface, 1 SWD Bonding pad interface. |
| |
| Supported Features |
| ================== |
| |
| .. zephyr:board-supported-hw:: |
| |
| Pin Mapping |
| =========== |
| |
| The peripherals of the RP2040 SoC can be routed to various pins on the board. |
| The configuration of these routes can be modified through DTS. Please refer to |
| the datasheet to see the possible routings for each peripheral. |
| |
| Default Zephyr Peripheral Mapping: |
| ---------------------------------- |
| |
| .. rst-class:: rst-columns |
| |
| - UART0_TX : P0 |
| - UART0_RX : P1 |
| - I2C1_SDA : P6 |
| - I2C1_SCL : P7 |
| - SPI0_RX : P4 |
| - SPI0_SCK : P2 |
| - SPI0_TX : P3 |
| |
| Connections and IOs |
| =================== |
| |
| The board uses a standard XIAO pinout, the default pin mapping is the following: |
| |
| .. figure:: img/xiao_rp2040_pinout.webp |
| :align: center |
| :alt: XIAO RP2040 Pinout |
| |
| XIAO RP2040 Pinout |
| |
| Programming and Debugging |
| ************************* |
| |
| .. zephyr:board-supported-runners:: |
| |
| Flashing |
| ======== |
| |
| Using UF2 |
| --------- |
| |
| You can flash the Xiao RP2040 with a UF2 file. |
| By default, building an app for this board will generate a |
| :file:`build/zephyr/zephyr.uf2` file. If the Xiao RP2040 is powered on with |
| the ``BOOTSEL`` button pressed, it will appear on the host as a mass storage |
| device. The UF2 file should be copied to the device, which will |
| flash the Xiao RP2040. |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _`Seeed Studio XIAO RP2040`: https://wiki.seeedstudio.com/XIAO-RP2040/ |
