Wikipedia

RP2040

RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit[1][2][3] by Raspberry Pi Ltd. In January 2021, it was released as part of the Raspberry Pi Pico board.[1] Its successor is the RP2350 series.

RP2040 microcontroller
RP2040 die shot
A PhobGCC, an open-source motherboard replacement for the GameCube controller designed for competitive Super Smash Bros. Melee, powered by the RP2040

Overview

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Announced on 21 January 2021, the RP2040 is the first microcontroller designed by Raspberry Pi Ltd.[1][2] The microcontroller is low cost, with the Raspberry Pi Pico being introduced at US$4 and the RP2040 itself costing US$1. The microcontroller can be programmed in assembly, C, C++, Swift,[4] Free Pascal, Rust,[5] Go,[6] MicroPython, CircuitPython,[1][7] Ada[8] and TypeScript.[9] It is powerful enough to run TensorFlow Lite.[1]

At announcement time, four other manufacturers (Adafruit, Pimoroni, Arduino, SparkFun) were at advanced stages of their product design, awaiting the widespread availability of chips to be put in to production.[10]

Hackaday notes the benefits of the RP2040 as being from Raspberry Pi, having a good feature set, and being released in low-cost packages.[11]

Multiple stepping levels of the chip have been produced.[12]

Features

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The chip is 40 nm silicon in a 7 × 7 mm QFN-56EP surface-mount device (SMD) package manufactured by TSMC[13]

  • Key features:[14].
    • 133 MHz dual ARM Cortex-M0+ cores (ARMv6-M) (supports overclocking[3])
      • Each core has an integer divider peripheral, and two interpolators.
    • 264 KB SRAM in six independent banks (four 64 KB, two 4 KB)
    • No internal flash or EEPROM memory (after reset, the boot-loader loads firmware from either external flash memory or USB into internal SRAM)
    • QSPI bus controller supports up to 16 MB of external flash memory
    • DMA controller, 12 channel, 2 IRQ. (NOTE: RP2350 family has 16 and 4).
    • AHB crossbar, fully-connected
    • On-chip programmable low-dropout regulator (LDO) to generate core voltage
    • Two on-chip PLLs to generate USB and core clocks
    • 30 GPIO pins, of which four can optionally be used as analog inputs
  • Peripherals:
    • One USB 1.1 (LS & FS) controller and PHY, host and device support, 1.5 Mbps (Low Speed) and 12 Mbps (Full Speed).
    • Two UART controllers.
    • Two SPI controllers.
    • One QSPI (quad SPI) controller (SSI), supports 1 / 2 / 4-bit SPI transfers, 1 chip select.
    • Two I²C controllers.
    • Eight PIO (programmable input–output) state machines. (NOTE: RP2350 family has 12).
    • 16 PWM channels. (NOTE: RP2350 family has 24).
    • 4-channel 12-bit 500-ksps SAR ADC, extra channel is connected to internal temperature sensor. (NOTE: RP2350 family has 4 or 8 depending on package).

Boards

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A number of manufacturers have announced their own boards using the RP2040. A selection of the growing number is here:

Board name Manufacturer Size (mm) Header pins Debug connection Number of pads USB connector Other connectors Flash size GPIO pins ADC pins Buttons Other features Image
Pico[15] Raspberry Pi Ltd 51×21 40+3 via headers 6 micro-USB 2 MB 26 3 BOOTSEL  
Pico W[16] Raspberry Pi Ltd 51×21 40+3 via headers 6 micro-USB 2 MB 26 3 BOOTSEL Wi-Fi, Bluetooth  
XIAO RP2040[17] Seeed Studio 20×17.5×3.5 14 Reset Button/ Boot Button USB Type-C interface 2 MB BOOTSEL + RESET
Nano RP2040 Connect[18] Arduino 45×18 30 via pads 5+4+2 micro-USB 16 MB 1 Wi-Fi, Bluetooth, 9-axis IMU, microphone  
Tiny 2040[19] Pimoroni 22.9×18.2×6 8+3 via headers USB-C 8 MB 12 4 BOOTSEL + RESET
Keybow 2040[20] Pimoroni 76x76x30 0 (USB only) USB-C 2 MB 16 keys
PicoSystem[21] Pimoroni 96.6×42.7×15.5 0 (self contained) USB-C 16 MB 4 + joypad Color 240×240 LCD, onboard battery
Feather RP2040[22] Adafruit 51×23×7 28 via pins USB-C STEMMA QT, lipo battery 8 MB 21 4 BOOTSEL + RESET Battery charger
ItsyBitsy RP2040[23] Adafruit 36×18×4 33 via headers micro-USB 4 MB 23 4 BOOTSEL + RESET
Metro RP2040[24] Adafruit 71x53×13 32 SWD + 3 pin JST SH compatible USB Type-C DC jack for 6-12VDC / STEMMA QT / SWD / pico probe 16 MB 24 4 BOOTSEL + RESET NeoPixel LED, Micro SD
QT Py RP2040[25] Adafruit 22×18×6 14 Reset Button/ Boot Button USB-C STEMMA QT 8 MB 13 4 BOOTSEL + RESET 3.3vdc regulator, NeoPixel LED
Pro Micro – RP2040[26] Sparkfun 36×18 24 4+2 USB-C QWIIC 16 MB 20 4 BOOTSEL + RESET  
Thing Plus RP2040[27] Sparkfun 59×23 28 JTAG pins USB-C QWIIC, lipo battery 16 MB 18 4 BOOTSEL + RESET Battery charger  
MicroMod RP2040[28] Sparkfun 22×22 0 edge connector edge connector 16 MB 29 3 none  
Müsli USB Pmod[29] Lone Dynamics 45×20.32 12 SWD USB Type-A female 12-pin male PMOD, SWD 256 KB 8 0 BOOTSEL USB host, 5V boost converter
Werkzeug USB Multi-Tool[30] Lone Dynamics 50×50 32 USB-C 12-pin female PMOD, USB Type-A female 1 MB 24 4 BOOTSEL USB device/host, PMOD
RP2040[31] WeAct Studio 53x21.52 40+4 via headers USB-C 2 MB,
4 MB,
8 MB,
16 MB 		26 4 BOOTSEL + RESET
RP2040-Zero[32] Waveshare Electronics 23×18 23 USB-C 10-pad connector 2 MB 29 4 BOOTSEL + RESET RGB LED (WS2812)
Pico2040 zeankun.dev 51x18 40+3 (2mm and 2.54mm variants are available) SWD 4 micro-USB 16 MB,
32 MB,
64 MB,
128 MB 		28 4 BOOTSEL + RESET
Bus Pirate 5 Where Labs, LLC 60x37 10+9 SWD USB-C 16MB
W5100S-EVB-Pico[33] WIZnet Co., Ltd. 75x21 40+3 via headers Micro-USB RJ45 2 MB 26 3 BOOTSEL + RESET Ethernet  
W5500-EVB-Pico[34] WIZnet Co., Ltd. 75x21 40+3 via headers Micro-USB RJ45 2 MB 26 3 BOOTSEL + RESET Ethernet  
W6100-EVB-Pico[35] WIZnet Co., Ltd. 75x21 40+3 via headers Micro-USB RJ45 2 MB 26 3 BOOTSEL + RESET Ethernet  
WizFi360-EVB-Pico[36] WIZnet Co., Ltd. 75×21 40+3 via headers Micro-USB 2 MB 26 3 BOOTSEL + RESET Wi-Fi  
0xCB-Helios[37] 0xCB 36×18 40+3 via headers USB-C 16 MB 29 BOOTSEL + RESET default off red power LED, blue user LED, level shifter to drive 5V components. ESD protection chip onboard
Picopad[38] Pájeníčko s.r.o. 129x53 12 via headers micro-USB microSD, external connector 2 MB 6 BOOTSEL + RESET on-off, Wi-Fi, micro SD card, external connector, IPS screen, speaker, battery
MUREX ANYESC[39] MUREX Robotics 78×35 3 via headers USB-C edge connector 8 MB 3 0 BOOTSEL + RESET commercial ESC connector, 3 user LEDs
RP2040-PICO30[40] OLIMEX Ltd 51×21 40+3 via headers USB-C Optional UEXT (pUEXT) 2 MB 30 4 BOOTSEL + RESET 3.3V 2A (3A peak) DCDC, All 30 GPIOs available to the user, Optional status LED
RP2040-PICO30-16[40] OLIMEX Ltd 51×21 40+3 via headers USB-C Optional UEXT (pUEXT) 16 MB 30 4 BOOTSEL + RESET
PicoUSB[41] VoltMake[42] 45×12x4 0 (USB only) Dual sided USB-A 2 MB BOOTSEL + MODE status LED  

See also

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  • Arduino – a popular microcontroller board family
  • ESP32 – a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth.
  • STM32 – a family of 32-bit microcontroller integrated circuits
  • Raspberry Pi – Raspberry Pi's series of small single board computers
  • Thumby (Game Console) – a thumb-sized micro-console powered by the RP2040

References

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  1. ^ a b c d e "Meet Raspberry Silicon: Raspberry Pi Pico now on sale at $4". January 21, 2021.
  2. ^ a b Adams, James (1 February 2021). "Raspberry Pi RP2040: Our Microcontroller for the Masses". Arm Blueprint. Retrieved 20 February 2021.
  3. ^ a b "RP2040 Datasheet" (PDF). Raspberry Pi Ltd. Retrieved 20 February 2021.
  4. ^ apple/swift-embedded-examples, Apple, 2024-06-14, retrieved 2024-06-14
  5. ^ "Rust on the RP series of microcontrollers". GitHub. Retrieved 29 March 2023.
  6. ^ "Raspberry Pi Pico". TinyGo. Retrieved 2024-09-10.
  7. ^ Rembor, Kattni. "Getting Started with Raspberry Pi Pico and CircuitPython". Adafruit Learning System. Adafruit. Retrieved 17 February 2023.
  8. ^ "Ada on the Raspberry Pi Pico". Retrieved 10 July 2023.
  9. ^ "RP2040 | DeviceScript". microsoft.github.io. Retrieved 2023-11-28.
  10. ^ "Tweet". twitter.com. Retrieved 2021-02-18.
  11. ^ Williams, Elliot (20 January 2021). "Raspberry Pi Enters Microcontroller Game With $4 Pico". Hackaday. Retrieved 20 February 2021.
  12. ^ "RP2040 datasheet" (PDF). Raspberry Pi Ltd. 2 May 2024. p. 391. There are two hardware issues with the device controller, both of which have software workarounds on RP2040B0, RP2040B1, and are fixed in hardware on RP2040B2
  13. ^ "Raspberry Pi: Here's how we built our own chip to power the Pico". ZDNET. Retrieved 2023-10-05.
  14. ^ "RP2040 Datasheet" (PDF). raspberrypi.com. Retrieved 2021-03-28.
  15. ^ "Buy a Raspberry Pi Pico".
  16. ^ "Pico W - Raspberry Pi | Rasppishop - Raspberry Pi Boards und Zubehör". Pico W - Raspberry Pi | Rasppishop - Raspberry Pi Boards und Zubehör (in German). Retrieved 2023-09-04.
  17. ^ "Seeed Studio XIAO RP2040 - Supports Arduino, MicroPython and CircuitPython". www.seeedstudio.com. 2023-08-06. Retrieved 2023-09-04.
  18. ^ "Welcome Raspberry Pi to the world of microcontrollers". 20 January 2021.
  19. ^ "Tiny 2040 – Pimoroni".
  20. ^ "Keybow 2040 – Pimoroni".
  21. ^ "PicoSystem – Pimoroni".
  22. ^ "Adafruit Feather RP2040".
  23. ^ "Adafruit ItsyBitsy RP2040".
  24. ^ "Adafruit Metro RP2040".
  25. ^ "Adafruit QT Py RP2040".
  26. ^ "SparkFun Pro Micro - RP2040 - DEV-18288 - SparkFun Electronics".
  27. ^ "SparkFun Thing Plus - RP2040 - DEV-17745 - SparkFun Electronics".
  28. ^ "SparkFun MicroMod RP2040 Processor - DEV-17720 - SparkFun Electronics".
  29. ^ "Müsli USB Pmod™ Compatible Module".
  30. ^ "Werkzeug USB Multi-Tool".
  31. ^ Studio, WeAct (2023-08-17), RP2040 / WeAct Studio 微行工作室 出品, retrieved 2023-09-04
  32. ^ "RP2040-Zero, A Low-Cost, High-Performance Pico-Like MCU Board Based On Raspberry Pi Microcontroller RP2040". www.waveshare.com. Retrieved 2023-09-04.
  33. ^ "WIZnet W5100S-EVB-Pico".
  34. ^ "WIZnet W5500-EVB-Pico".
  35. ^ "WIZnet W6100-EVB-Pico".
  36. ^ "WIZnet WizFi360-EVB-Pico".
  37. ^ "0xCB Helios". GitHub.
  38. ^ "Picopad".
  39. ^ "ESC – MUREX Robotics Documentation". docs.murexrobotics.com. Retrieved 2024-07-07.
  40. ^ a b "RP2040-PICO30 - Open Source Hardware Board". Olimex. Retrieved 2024-07-19.
  41. ^ "PicoUSB: Raspberry Pi (Pico) RP2040 powered Bad USB (Rubber Ducky)". PicoUSB. Retrieved 2024-09-29.
  42. ^ "VoltMake - Electronics Engineering - PCB Design - Firmware - Software". VoltMake. Retrieved 2024-09-29.
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