Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: rbowman Newsgroups: comp.os.linux.misc Subject: Re: News : ARM Trying to Buy AmperComputing Date: 17 Jan 2025 07:05:51 GMT Lines: 34 Message-ID: References: <_hycnQxlN5kAphr6nZ2dnZfqn_SdnZ2d@earthlink.com> <36bf96a5-527c-1d8b-a93b-6788cdd589a2@example.net> <1PKcna3Yf6vdFhX6nZ2dnZfqnPidnZ2d@earthlink.com> <7b19252d-bfe8-9d48-0cd2-eb33e4a64179@example.net> <67897bb3@news.ausics.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Trace: individual.net 5L1YpC5gr3MNGjhJZC1GcQdaKXj9+w4RZNCP+kFKbqTCuk/lcW Cancel-Lock: sha1:dK7lW4Laco3m7FERUO+y5jJnJSE= sha256:agRJdp3ezZdRgc61Rmniz7yfBVmZuF5iTyAz59Z7UqY= User-Agent: Pan/0.155 (Kherson; fc5a80b8) Xref: csiph.com comp.os.linux.misc:64495 On Fri, 17 Jan 2025 00:46:02 -0500, 186282@ud0s4.net wrote: > That's actually a very clever design - copes with both universes ! > > How smoothly the disparate cores work together, dunno. You can only use two cores at one time. I've read you can have one ARM and one RISC-V but I haven't verified it. > With these things, it's the intended application that's the relevant > factor. Maybe you can't run Linux on some of the chips but there's > usually some cut-down substitute that'll get yer job done. Seriously > MICRO microcontrollers, > well, it's still gonna be ASM and 'C' - more like Arduinos and PICs. > Can't fit an OS into everything ... Sure for the really small sole use devices. Even the Uno R4 has a 32-bit ARM Cortex-M4. I've got a couple of Nano Sense 33s that use the nRF52840, another Cortex-M4 design. Even Microchip is on board with the PIC32CX-BZ2, another Cortex-M4 SOC with BLE. There will always be a market for chips like the original PICs or AVRs for rice cookers. I've used the C SDK with the RP2040. You definitely have more control than using MicroPython but like all C and Python comparisons you're doing a lot more low level boilerplate to get the job done. If you need it the speed, control, and memory it's there. I don't know if hand coded ASM would buy much. C compilers are pretty good these days. The interesting conversation these days is the next RTOS. ARM is dropping the Mbed OS, EOL July 2026. Zephyr is one of the contenders.