Subj : Re: New Pico2 To : John Larkin From : Chris Jones Date : Mon Aug 19 2024 22:04:19 XPost: sci.electronics.design On 13/08/2024 12:43 pm, John Larkin wrote: > On Mon, 12 Aug 2024 18:41:59 +0200, Lasse Langwadt > wrote: > >> On 8/11/24 23:07, John Larkin wrote: >>> On Sun, 11 Aug 2024 14:04:36 -0700, John Larkin >>> wrote: >>> >>>> On Sun, 11 Aug 2024 21:45:42 +0100, Andy Burns >>>> wrote: >>>> >>>>> Surprised nobody has mentioned the Pico2 boards (based on RP2350A or >>>>> RP2350B chips, instead of RP2040). >>>>> >>>>> 2x ARM cores plus 2x RISC-V cores (perm any 2 from 4) >>>>> 150 MHz with FPU instead of 133MHz without >>>>> lower power consumption >>>>> more I/O pins (B model only?) >>>>> >>>>> I really ought to buy a couple for tinkering ... >>>>> >>>>> official boards not available yet, but 3rd party boards are, e.g. >>>>> >>>>> >>>>> >>>> >>>> As of now, Digikey shows no stock on the Pico2 and doesn't recognize >>>> the RP2350 chip as a product. Ditto Mouser. >>>> >>>> The fast floats look great. I wonder how fast they are. >>> >>> The RP2350 data sheet is 1347 pages! >>> >> >> read the part on how the build in buck converter needs a custom inductor >> with polarity marking to work, and tell there is something seriously >> wrong with it > > The polarized inducor is strange. I'd expect that a small shielded > inductor would work fine. It is interesting to have a switching > regulator on a CPU chip... near a 12-bit ADC! I don't think they know much about how to do ADCs yet. Have a look at the performance of the RP2040 ADC - it is awful! http://pico-adc.markomo.me/ I hope the new one is better. --- SoupGate-Win32 v1.05 * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3) .