Subj : Re: RP2040 / Pico shared ram? To : void-invalid-dead-dontuse@email.inv From : Kees Nuyt Date : Tue Oct 08 2024 13:49:05 On Tue, 8 Oct 2024 03:04:11 +0100, Brian Gregory wrote: >On 03/10/2024 23:32, john larkin wrote: >> Given an RP2040 CPU with two ARM processors (we call them Alice and >> Bob), how can they talk to one another? >> >> We hate FIFOs. Is it possible for them to share a block of the SRAM? >> It would be cool if the two programs could both declare a struct and >> both be able to access it simultaneously. We's manage the access >> details ourselves, who writes to what variables. > > Don't they share all the RAM like any other 2 core processor would? We don't have to guess, the chip is documented very well: Scroll to "Documents" - click "RP2040 datasheet" -- Kees Nuyt --- SoupGate-Win32 v1.05 * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3) .