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I got almost all of my wishes granted with RP2350

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Re: I got almost all of my wishes granted with RP2350

#71

Post by jononor »

synergy20 wrote: post #19

You can pick either ARM cores or RISC-V cores on the same die? Never saw design like this before. Will this impact price and power consumption? "The Hazard3 cores are optional: Users can at boot time select a pair of included Arm Cortex-M33 cores to run, or the pair of Hazard3 cores. Both options run at 150 MHz. The more bold could try running one RV and one Arm core together rather than two RV or two Arm. Hazard3 is…

This seems like a great way to test the waters before a potential full-on transition to RISC-V. It allows to validate both technically and market reception, for a much lower cost than taping out a additional chip.

Re: I got almost all of my wishes granted with RP2350

#73

Post by MBCook »

jononor wrote: post #71
synergy20 wrote: post #19

You can pick either ARM cores or RISC-V cores on the same die? Never saw design like this before. Will this impact price and power consumption? "The Hazard3 cores are optional: Users can at boot time select a pair of included Arm Cortex-M33 cores to run, or the pair of Hazard3 cores. Both options run at 150 MHz. The more bold could try running one RV and one Arm core together rather than two RV or two Arm. Hazard3 is…

This seems like a great way to test the waters before a potential full-on transition to RISC-V. It allows to validate both technically and market reception, for a much lower cost than taping out a additional chip.

Fun for benchmarking too.

You’re limited to those two exact kinds of cores, but you know every other thing on the entire computer is 100% identical.

It’s not SBC 1 vs SBC 2, but they have different RAM chips and this one has a better cooler but that one better WiFi.

Re: I got almost all of my wishes granted with RP2350

#74

Post by ravetcofx »

geerlingguy wrote: post #54
synergy20 wrote: post #19

You can pick either ARM cores or RISC-V cores on the same die? Never saw design like this before. Will this impact price and power consumption? "The Hazard3 cores are optional: Users can at boot time select a pair of included Arm Cortex-M33 cores to run, or the pair of Hazard3 cores. Both options run at 150 MHz. The more bold could try running one RV and one Arm core together rather than two RV or two Arm. Hazard3 is…

Apparently (this is news to me), you can also choose to run 1+1 Arm/RISC-V, you don't have to switch both cores either/or. Eben Upton: "They're selectable at boot time: Each port into the bus fabric can be connected either to an M33 or a Hazard3 via a mux. You can even, if you're feeling obtuse, run with one of each." Source: https://www.theregister.com/2024/08/08/pi_pico_2_risc_v/

But not 2+2? That seems too bad to have each architecture run code based on their strengths for quad core workloads.

Re: I got almost all of my wishes granted with RP2350

#75

Post by spacedcowboy »

Archit3ch wrote: post #62
doe_eyes wrote: post #22

I think it's a good way to introduce these chips, and it's a great project, but the author's (frankly weird) beef with STM32H7 is detracting from the point they're trying to make: > So, in conclusion, go replan all your STM32H7 projects with RP2350, save money, headaches, and time. STM32H7 chips can run much faster and have a wider selection of peripherals than RP2350. RP2350 excels in some other dimensions, includin…

> STM32H7 chips can run much faster STM32H7 tops out at 600MHz. This has 2x 300MHz at 2-3 cycles/op FP64. So maybe your applications can fit into this?

I'm seeing several statements of 2x300MHz, but the page [1] says 2x150MHz M33's..

I know the RP2040's overclock a lot but these are significantly more complex chips, it seems less likely they'll overclock to 2x the base frequency.

[1] https://www.raspberrypi.com/news/raspberry-pi-pico-2-our-new...

Re: I got almost all of my wishes granted with RP2350

#76

Post by gchadwick »

This looks awesome a really great step up from the RP2040. I'm a big fan of the original and I'm excited to see all the improvements and upgrades.

I imagine with the new secure boot functionality they've got a huge new range of customers to tempt to.

Also exciting to see them dip their toe into the open silicon waters with the hazard 3 RISCV core https://github.com/Wren6991/Hazard3.

Of course it they'd used Ibex https://github.com/lowrisc/ibex the RISC-V core we develop and maintain at lowRISC that would have been even better but you can't have everything ;)

Re: I got almost all of my wishes granted with RP2350

#79

Post by coder543 »

blackkat wrote: post #10

Some specs here: https://www.digikey.ca/en/product-highlight/r/raspberry-pi/r... Based on the RP2350, designed by Raspberry Pi in the United Kingdom Dual Arm M33s at 150 MHz with FPU 520 KiB of SRAM Robust security features (signed boot, OTP, SHA-256, TRNG, glitch detectors and Arm TrustZone for Cortex®-M) Optional, dual RISC-V Hazard3 CPUs at 150 MHz Low-power operation PIO v2 with 3 × programmable I/O co-processors…

I'm having trouble seeing where the datasheet actually says the GPIO pins are 5V tolerant.

EDIT: okay, section 14.8.2.1 mentions two types of digital pins: "Standard Digital" and "Fault Tolerant Digital", and the FT Digital pins might be 5V tolerant, it looks like.

Re: I got almost all of my wishes granted with RP2350

#80

Post by [deleted] »

Archit3ch wrote: post #62
doe_eyes wrote: post #22

I think it's a good way to introduce these chips, and it's a great project, but the author's (frankly weird) beef with STM32H7 is detracting from the point they're trying to make: > So, in conclusion, go replan all your STM32H7 projects with RP2350, save money, headaches, and time. STM32H7 chips can run much faster and have a wider selection of peripherals than RP2350. RP2350 excels in some other dimensions, includin…

> STM32H7 chips can run much faster STM32H7 tops out at 600MHz. This has 2x 300MHz at 2-3 cycles/op FP64. So maybe your applications can fit into this?

[deleted]
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