The innovation won't be to run NuttX in a RISC-V (soft-core or not) but using a FPGA for its flexibility to add any kind of peripherals, one of the main ones to be useful in my view will be a high-resolution framebuffer and USB mouse/keyboard for a complete UI
On Sat, Jan 27, 2024 at 4:31 PM Gregory Nutt <spudan...@gmail.com> wrote: > Aren't most CPUs available as soft cores? Certainly Xtensa was intended > for that purpose. ARM and MIPS have been common soft cores in ASICs for > more than a decade. As is RISC-V soft core in FPGAs. > https://en.wikipedia.org/wiki/Soft_microprocessor > > In the past, there was some interest in ports of NuttX to softcore's > like MicroBlaze. But there hasn't been that kind of interest in recent > times. > > This would have been an innovation a decade or so ago, but I wonder > about that now. > > > > On 1/27/2024 1:18 PM, Victor Suarez Rovere wrote: > > Tomek, as I clarified, porting NuttX to a FPGA will require a soft-core > > CPU. I don't envision an opertaing system without a CPU, I see that like > a > > bad design choice if possible at all > > Using a soft core and custom peripherals seems more valuable, even > > including video output and USB host for mouse/keyboard handling. I've > done > > that for Micropython > > > > El sáb., 27 ene. 2024 13:23, Tomek CEDRO <to...@cedro.info> escribió: > > > >> Okay Victor, I was thinking about toolchain that you present in > >> "Sphery vs. Shapes" [1] to be adopted for NuttX on FPGA conversion > >> without a CPU design.. could you please send your full detailed > >> proposal then? :-) > >> > >> [1] https://www.youtube.com/watch?v=hn3sr3VMJQU > >> > >> -- > >> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info > >> > >> On Sat, Jan 27, 2024 at 7:22 AM Victor Suarez Rovere > >> <suarezvic...@gmail.com> wrote: > >>> Just clarifying, the idea to run NuttX on a FPGA is to instantiate a > CPU > >>> and peripherals on the FPGA and then run normally as if it were a MCU > >>> Good thing is that you can change the CPU, add/remove peripherals, etc. > >>> > >>> On Sat, Jan 27, 2024 at 12:32 AM Tomek CEDRO <to...@cedro.info> wrote: > >>> > >>>> Hey there Victor! Thanks for your interest in NuttX port to FPGA!! :-) > >>>> > >>>> No there is no such design yet.. you would have to create everything > >>>> from scratch.. so there is some serious amount of work to do.. but > >>>> imagine the results.. there will be just one step to ASIC!! :-) > >>>> > >>>> I could reconsider my mentor position in this kind of project because > >>>> I would really love to see the internals first hand.. with a help of > >>>> more experienced NuttX'er for sure as second mentor :-) :-) > >>>> > >>>> I did a PONG on FPGA over 10 years ago but I would never dare to run > >>>> CPU-less-program directly on FPGA.. then RTOS.. then lets say Atari > >>>> emulator.. chip module player.. open source smart debug probe.. a > >>>> neural interface.. who knows.. would that even fit into the FPGA? :-) > >>>> :-) > >>>> > >>>> I have a strong feeling this may be important.. but I leave the whole > >>>> decision to the PMC :-) > >>>> > >>>> Have a good weekend my friends :-) > >>>> Tomek > >>>> > >>>> -- > >>>> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info > >>>> > >>>> On Sat, Jan 27, 2024 at 2:55 AM Victor Suarez Rovere > >>>> <suarezvic...@gmail.com> wrote: > >>>>> I can certainly port NuttX to run on some FPGA boards too > >>>>> Is any board already supported? > >>>>> > >>>>> On Fri, Jan 26, 2024 at 4:40 PM Alan C. Assis <acas...@gmail.com> > >> wrote: > >>>>>> Hi Tomek, > >>>>>> > >>>>>> His toolchain is focused on FPGA, but he is interested in > >>>> participating in > >>>>>> other projects for GSoC. > >>>>>> > >>>>>> Also we need NuttX mentors, I will participate, but for each > >> project we > >>>>>> need two mentors, please let me know who could be interested to > >> help. > >>>>>> Best Regards, > >>>>>> > >>>>>> Alan > >>>>>> > >>>>>> On Fri, Jan 26, 2024 at 3:33 PM Tomek CEDRO <to...@cedro.info> > >> wrote: > >>>>>>> On Fri, Jan 26, 2024 at 2:07 PM Alan C. Assis wrote: > >>>>>>>> Dear NuttXers, > >>>>>>>> Please find below some ideas of projects to improve NuttX > >> during > >>>> the > >>>>>>>> GSoC2024: > >>>>>>>> > >> https://cwiki.apache.org/confluence/display/COMDEV/GSoC+2024+Ideas+list > >>>>>>>> If you have some other ideas, please let me know. > >>>>>>> I would like to propose Victor Suarez (CC) idea for porting > >> toolchain > >>>>>>> NuttX RTOS directly to FPGA :-) > >>>>>>> > >>>>>>> > >>>>>>> > >> > https://www.tomshardware.com/news/fpga-demo-shows-efficiency-gains-compared-to-x86-chip > >>>>>>> Tomek > >>>>>>> > >>>>>>> -- > >>>>>>> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info > >>>>>>> > >
