126 lines
3.3 KiB
ReStructuredText
126 lines
3.3 KiB
ReStructuredText
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.. _sparkfun_pro_micro_rp2040:
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SparkFun Pro Micro RP2040
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#########################
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Overview
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********
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The SparkFun Pro Micro RP2040 is a small, low-cost, versatile board from
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SparkFun. It is equipped with an RP2040 SoC, an on-board WS2812 addressable
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LED, a USB connector, and a Qwiic connector. The USB bootloader allows it
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to be flashed without any adapter, in a drag-and-drop manner.
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Hardware
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********
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- Dual core Arm Cortex-M0+ processor running up to 133MHz
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- 264KB on-chip SRAM
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- 16MB on-board QSPI flash with XIP capabilities
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- 18 GPIO pins
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- 4 Analog inputs
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- 1 UART peripherals
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- 1 SPI controllers
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- 2 I2C controllers (one via Qwiic connector)
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- 16 PWM channels
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- USB 1.1 controller (host/device)
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- 8 Programmable I/O (PIO) for custom peripherals
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- On-board RGB LED
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- 1 Watchdog timer peripheral
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.. figure:: img/sparkfun_pro_micro_rp2040.jpg
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:align: center
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:alt: SparkFun Pro Micro RP2040
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SparkFun Pro Micro RP2040 (Image courtesy of SparkFun)
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Supported Features
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==================
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The sparkfun_pro_micro_rp2040 board configuration supports the following
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hardware features:
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.. list-table::
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:header-rows: 1
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* - Peripheral
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- Kconfig option
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- Devicetree compatible
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* - NVIC
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- N/A
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- :dtcompatible:`arm,v6m-nvic`
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* - UART
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- :kconfig:option:`CONFIG_SERIAL`
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- :dtcompatible:`raspberrypi,pico-uart`
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* - GPIO
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- :kconfig:option:`CONFIG_GPIO`
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- :dtcompatible:`raspberrypi,pico-gpio`
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* - ADC
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- :kconfig:option:`CONFIG_ADC`
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- :dtcompatible:`raspberrypi,pico-adc`
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* - I2C
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- :kconfig:option:`CONFIG_I2C`
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- :dtcompatible:`snps,designware-i2c`
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* - SPI
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- :kconfig:option:`CONFIG_SPI`
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- :dtcompatible:`raspberrypi,pico-spi`
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* - USB Device
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- :kconfig:option:`CONFIG_USB_DEVICE_STACK`
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- :dtcompatible:`raspberrypi,pico-usbd`
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* - HWINFO
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- :kconfig:option:`CONFIG_HWINFO`
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- N/A
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* - Watchdog Timer (WDT)
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- :kconfig:option:`CONFIG_WATCHDOG`
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- :dtcompatible:`raspberrypi,pico-watchdog`
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* - PWM
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- :kconfig:option:`CONFIG_PWM`
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- :dtcompatible:`raspberrypi,pico-pwm`
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* - Flash
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- :kconfig:option:`CONFIG_FLASH`
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- :dtcompatible:`raspberrypi,pico-flash`
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Pin Mapping
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===========
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The peripherals of the RP2040 SoC can be routed to various pins on the board.
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The configuration of these routes can be modified through DTS. Please refer to
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the datasheet to see the possible routings for each peripheral.
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Default Zephyr Peripheral Mapping:
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----------------------------------
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.. rst-class:: rst-columns
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- UART0_TX : P0
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- UART0_RX : P1
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- I2C1_SDA : P2
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- I2C1_SCL : P3
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- SPI0_RX : P20
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- SPI0_SCK : P18
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- SPI0_TX : P19
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Programming and Debugging
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*************************
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Flashing
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========
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Using UF2
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---------
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Since it doesn't expose the SWD pins, you must flash the SparkFun Pro Micro
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RP2040 with a UF2 file. By default, building an app for this board will
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generate a `build/zephyr/zephyr.uf2` file. If the Pro Micro RP2040 is powered
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on with the `BOOTSEL` button pressed, it will appear on the host as a mass
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storage device. The UF2 file should be drag-and-dropped to the device, which
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will flash the Pro Micro RP2040.
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.. target-notes::
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.. _Getting Started with Raspberry Pi Pico:
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https://datasheets.raspberrypi.com/pico/getting-started-with-pico.pdf
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.. _Graphical Datasheet:
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https://cdn.sparkfun.com/assets/e/2/7/6/b/ProMicroRP2040_Graphical_Datasheet.pdf
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