6e9635679f
Add initial support for the RP2350's PIO peripherals, extend the existing example under samples/boards/raspberrypi/rpi_pico/uart_pio to demonstrate this on the Raspberry Pi Pico 2, and update the board's documentation. Signed-off-by: Andrew Featherstone <andrew.featherstone@gmail.com> Signed-off-by: Manuel Aebischer <manuel.aebischer@belden.com>
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2.8 KiB
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90 lines
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.. zephyr:board:: rpi_pico2
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Overview
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The Raspberry Pi Pico 2 is the second-generation product in the Raspberry Pi
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Pico family. From the `Raspberry Pi website <https://www.raspberrypi.com/documentation/microcontrollers/pico-series.html>`_ is referred to as Pico 2.
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There are many limitations of the board currently. Including but not limited to:
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- The Zephyr build only supports configuring the RP2350A with the Cortex-M33 cores.
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- As with the Pico 1, there's no support for running any code on the second core.
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Hardware
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- Dual Cortex-M33 or Hazard3 processors at up to 150MHz
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- 520KB of SRAM, and 4MB of on-board flash memory
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- USB 1.1 with device and host support
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- Low-power sleep and dormant modes
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- Drag-and-drop programming using mass storage over USB
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- 26 multi-function GPIO pins including 3 that can be used for ADC
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- 2 SPI, 2 I2C, 2 UART, 3 12-bit 500ksps Analogue to Digital - Converter (ADC), 24 controllable PWM channels
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- 2 Timer with 4 alarms, 1 AON Timer
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- Temperature sensor
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- 3 Programmable IO (PIO) blocks, 12 state machines total for custom peripheral support
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- Flexible, user-programmable high-speed IO
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- Can emulate interfaces such as SD Card and VGA
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Supported Features
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==================
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The ``rpi_pico2/rp2350a/m33`` board target 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,v8m-nvic`
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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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* - Clock controller
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- :kconfig:option:`CONFIG_CLOCK_CONTROL`
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- :dtcompatible:`raspberrypi,pico-clock-controller`
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* - Counter
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- :kconfig:option:`CONFIG_COUNTER`
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- :dtcompatible:`raspberrypi,pico-timer`
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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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* - HWINFO
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- :kconfig:option:`CONFIG_HWINFO`
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- N/A
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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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* - PWM
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- :kconfig:option:`CONFIG_PWM`
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- :dtcompatible:`raspberrypi,pico-pwm`
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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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* - UART
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- :kconfig:option:`CONFIG_SERIAL`
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- :dtcompatible:`raspberrypi,pico-uart`
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* - UART (PIO)
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- :kconfig:option:`CONFIG_SERIAL`
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- :dtcompatible:`raspberrypi,pico-uart-pio`
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Connections and IOs
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===================
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The default pin mapping is unchanged from the Pico 1 (see :ref:`rpi_pico_pin_mapping`).
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Programming and Debugging
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As with the Pico 1, the SWD interface can be used to program and debug the
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device, e.g. using OpenOCD with the `Raspberry Pi Debug Probe <https://www.raspberrypi.com/documentation/microcontrollers/debug-probe.html>`_ .
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References
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**********
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.. target-notes::
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