INTL 3:770/1 3:770/3   
   REPLYADDR jjlarkin@highlandtechnology.com   
   REPLYTO 3:770/3.0 UUCP   
   MSGID:  ce5f1d10   
   REPLY:  3c87946b   
   PID: SoupGate-Win32 v1.05   
   XPost: sci.electronics.design   
      
   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!   
      
   The Pi designs struggle to save pennies and microwatts, which not all   
   of us care about.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)   
   SEEN-BY: 19/38 90/1 105/81 106/201 129/305 153/757 7715 218/700 840   
   SEEN-BY: 220/70 226/17 30 100 227/114 229/110 111 114 200 206 300   
   SEEN-BY: 229/317 400 426 428 470 550 616 664 700 266/512 267/800 282/1038   
   SEEN-BY: 291/111 292/854 310/31 320/219 322/757 342/200 396/45 460/58   
   SEEN-BY: 633/280 281 412 418 420 509 2744 712/848 770/1 3 100 330   
   SEEN-BY: 770/340 772/210 220 230 5020/400 5075/35   
   PATH: 770/3 1 633/280 229/426