this post was submitted on 11 Aug 2024
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Raspberry Pi Pico 2 arrives with twin RISC-V cores (www.theregister.com)
submitted 4 months ago by Alphane_Moon to c/hardware
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[–] hark 3 points 4 months ago (1 children)

I wonder if they plan on transitioning fully to RISC-V in the future, it would be cool if that cuts the price down by $1 or so. The Pico series is the only Raspberry Pi product line that interests me these days. Love seeing the increased speeds with decreased power consumption, and the additional PIO state machines are a nice touch. Looking forward to seeing the Pico 2 W!

[–] solrize 1 points 4 months ago

I believe they got a $0 license for the M0+ cores in the 2040. Don't know about the new 2350. The addition of Risc-v cores might be a flex to defend against future issues with ARM.

Going from two PIO blocks to three seems timid. Why not hundreds, like one for each gpio pin? And maybe redesign the PIO to allow more than 32 instructions? They are tiny, anyway.

Anyone know if there is any software for the Risc-v cores so far? Compilers, Micropython, etc.

[–] jimmydoreisalefty -1 points 4 months ago (3 children)

Raspberry Pi Pico 2 Technical Specifications^[[1] https://www.tomshardware.com/raspberry-pi/raspberry-pi-pico/raspberry-pi-pico-2-launches-with-arm-risc-v-cores-hands-on-with-the-new-dollar5-microcontroller]

Feature: Raspberry Pi Pico 2 | Raspberry Pi Pico

SoC: RP2350, Dual Core Arm Cortex M33 or Dual Core RISC-V Hazard3 running at up to 150 Mhz | RP2040, Dual Core Arm Cortex M0+: running at up to 133 MHz

SRAM: 520 KB | 264 KB

Flash Storage: 4MB QSPI | 2MB QSPI

Security: Arm TrustZone, 8KB OTP, Secure Boot | None

Wi-Fi / Bluetooth: None | None (Pico W has this)

Language Support: MicroPython, CircuitPython, C, C++ | MicroPython, CircuitPython, C, C++

USB Interface: USB 1.1 Device and Host | USB 1.1 Device and Host

GPIO Logic Level: 3.3V | 3.3V

GPIO: 26 x Digital IO | 26 x Digital IO

Row 9 - Cell 0: 4 x 12-bit ADC (Analog pins) | 3 x 12-bit ADC (Analog pins)

Row 10 - Cell 0: 2 x UART, 2 x I2C, 2 x SPI, 24 x PWM | 2 x UART, 2 x I2C, 2 x SPI, 16 x PWM

Programmable IO: 12 PIO State Machines | 8 PIO State Machines

Onboard LED: GPIO 25 | GPIO 25

Power: 1.8 to 5.5V via Micro USB or VSYS | 1.8 to 5.5V via Micro USB or VSYS

MCU Sleep Mode: <10uA | 100uA

Dimensions: 21 x 51mm | 21 x 51mm

Price: $5 | $4

Screenshot of Specs:

[–] coke38 3 points 4 months ago (1 children)

I wonder if the Alpakka controller can get advantage of this... Thank you and have a nice day

[–] [email protected] 3 points 4 months ago

I was going to say $5 is pricy before I remembered it was dev boards and not chips.

[–] [email protected] 2 points 4 months ago

Important note on the flash is that both chips have the same 16MB max, and 3rd party pico boards would often just use max spec. The pico 2 additionally supports PSRAM sharing the flash’s qspi