2024-09-05 22:43:07 +02:00
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===============================
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2024-11-13 15:32:48 +08:00
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Raspberry Pi Pico 2
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2024-09-05 22:43:07 +02:00
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===============================
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2025-05-05 15:41:26 -04:00
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.. tags:: chip:rp2350
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2024-09-05 22:43:07 +02:00
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The `Raspberry Pi Pico 2 <https://www.raspberrypi.com/products/raspberry-pi-pico-2/>`_ is a general purpose board supplied by
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the Raspberry Pi Foundation.
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.. figure:: pico-2.png
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:align: center
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Features
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========
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* RP2350 microcontroller chip
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* Dual-core ARM Cortex M33 processor, flexible clock running up to 150 MHz
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* 520kB of SRAM, and 4MB of on-board Flash memory
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* Castellated module allows soldering direct to carrier boards
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* USB 1.1 Host and Device support
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* Low-power sleep and dormant modes
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* Drag & drop programming using mass storage over USB
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* 26 multi-function GPIO pins
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* 2× SPI, 2× I2C, 2× UART, 3× 12-bit ADC, 16× controllable PWM channels
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* Accurate clock and timer on-chip
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* Temperature sensor
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* Accelerated floating point libraries on-chip
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2024-11-13 15:32:48 +08:00
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* 12 × Programmable IO (PIO) state machines for custom peripheral support
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2024-09-05 22:43:07 +02:00
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Serial Console
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==============
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By default a serial console appears on pins 1 (TX GPIO0) and pin 2
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(RX GPIO1). This console runs a 115200-8N1.
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The board can be configured to use the USB connection as the serial console.
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See the `usbnsh` configuration.
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Buttons and LEDs
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================
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User LED controlled by GPIO25 and is configured as autoled by default.
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A BOOTSEL button, which if held down when power is first
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applied to the board, will cause the RP2350 to boot into programming
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2024-11-13 15:32:48 +08:00
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mode and appear as a storage device to the computer connected via USB.
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2024-09-05 22:43:07 +02:00
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Saving a .UF2 file to this device will replace the Flash ROM contents
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2024-11-13 15:32:48 +08:00
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on the RP2350.
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2024-09-05 22:43:07 +02:00
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Pin Mapping
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===========
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Pads numbered anticlockwise from USB connector.
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===== ========== ==========
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Pad Signal Notes
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===== ========== ==========
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1 GPIO0 Default TX for UART0 serial console
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2 GPIO1 Default RX for UART1 serial console
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3 Ground
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4 GPIO2
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5 GPIO3
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6 GPIO4
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7 GPIO5
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8 Ground
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9 GPIO6
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10 GPIO7
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11 GPIO8
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12 GPIO9
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13 Ground
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14 GPIO10
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15 GPIO11
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16 GPIO12
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17 GPIO13
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18 Ground
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19 GPIO14
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20 GPIO15
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21 GPIO16
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22 GPIO17
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23 Ground
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24 GPIO18
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25 GPIO19
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26 GPIO20
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27 GPIO21
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28 Ground
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29 GPIO22
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30 Run
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31 GPIO26 ADC0
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32 GPIO27 ADC1
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33 AGND Analog Ground
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34 GPIO28 ADC2
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35 ADC_VREF
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36 3V3 Power output to peripherals
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37 3V3_EN Pull to ground to turn off.
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38 Ground
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39 VSYS +5V Supply to board
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40 VBUS Connected to USB +5V
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===== ========== ==========
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Other RP2350 Pins
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=================
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GPIO23 Output - Power supply control.
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GPIO24 Input - High if USB port or Pad 40 supplying power.
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GPIO25 Output - On board LED.
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ADC3 Input - Analog voltage equal to one third of VSys voltage.
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Separate pins for the Serial Debug Port (SDB) are available
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Power Supply
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============
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The Raspberry Pi Pico 2 can be powered via the USB connector,
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or by supplying +5V to pin 39. The board had a diode that prevents
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power from pin 39 from flowing back to the USB socket, although
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the socket can be power via pin 30.
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The Raspberry Pi Pico chip run on 3.3 volts. This is supplied
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by an onboard voltage regulator. This regulator can be disabled
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by pulling pin 37 to ground.
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The regulator can run in two modes. By default the regulator runs
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in PFM mode which provides the best efficiency, but may be
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switched to PWM mode for improved ripple by outputting a one
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on GPIO23.
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Configurations
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==============
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nsh
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---
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Basic NuttShell configuration (console enabled in UART0, at 115200 bps).
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README.txt
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==========
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.. include:: README.txt
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:literal:
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