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Raspberry Pi Pico 2 and a new micro-controller with RISC-V and Arm?

cstanton

image

I haven't made the jump to playing with RISC-V yet, I'm wondering what the advantages are there.

And this makes it quad-core, right?

Crazy.

I have a lot of reading to do!

 Hardware Design with the RP2350 /  RP2350 Datasheet /  RP2350 Product Brief 

 Of course there's the Pico 2:  Raspberry Pi Pico 2 Datasheet  - I admit I haven't touched a Pico 1 yet.

What am I missing out on?

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  • I'm going to say it:

    Risk architecture (like many these days) only matters to 

    • controller manufacturers that have to pay a per-chip license to ARM, and
    • assembler language developers that do a better job than the GCC / Lang toolchain developers
  • in reply to Jan Cumps

    I don't know how well the Risk 5 competes with ARM M33, clock for clock or watt for watt. And there may well be big performance differences between different manufacturers implementations of the same cores.

    I've been working a project using the ST32MU575 (Cortex M33 like the Pico 2350) and the interesting thing about this chip is how much of it is devoted to peripherals. It costs more than the 2350 but totally blows it away in terms of on chip peripheral support. Partly as an experiment, but for some other reasons too,  I have chosen to implement quite a complex project without using interrupts at all. This is possible on the 'U575 because of the sophisticated timers and the complex linking possible between timers, the two ADCs (1  is 14 bit)  and the USARTS etc. The DMA is pretty flashy too, offering a linked list architecture which can do amazing stuff once your brain gets over the shock !

    I'd really like to see some some comparisons between the different cores on the 2350 because I think Jan may be right, but with the additional caveat that its (often) what surrounds the core that matters.

    (Oh, and don't forget tool and debugging support !)

    MK

  • in reply to michaelkellett
    michaelkellett said:
    its (often) what surrounds the core that matters.

    that was the point I was trying to make:)

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