Hi, Ken, Thanks a lot!
-Alexander сб, 28 січ. 2023, 19:18 користувач Ken Pettit <petti...@gmail.com> пише: > Hi Alexander, > > Great! I hope it works for you. > > It has been many years since I wrote the Linux FUSE filesystem for > SmartFS, but I believe HostFS + file_there + filemtd + SmartFS is > exactly how I tested it. Use that setup to create the host file, then > use that file to test the Linux FUSE implementation of SmartFS. In > fact, I'm pretty sure that was exactly why I wrote the filemtd > implementation to begin with. > > Ken > > On 1/28/23 2:25 AM, Alexander Oryshchenko wrote: > > Hi Alan, Ken! > > > > Thanks! > > Looks that HostFS + file_there + filemtd + ... may do what I need. > > In general I need to have file on the host which is organized like NOR > > FLASH (256b write pages, 4k erase). > > > > -Alexander > > > > > > On Fri, Jan 27, 2023 at 9:58 PM Ken Pettit <petti...@gmail.com> wrote: > > > >> Hey Guys, > >> > >> Yes, I had SmartFS running in the simulator at one point, but it was > >> backed by a big char array. But I'm trying to understand the use case > >> ... are you jsut looking for a file system in the simulator to use for > >> testing an application? Are you looking for host backed because you > >> want data to be persistent in the simulator from run to run? Do you > >> specifically want to test out NOR flash access type access? On the > >> host, does the data need to be in a single file or can it just be in a > >> directory? > >> > >> Because I also wrote a full FS (HostFS) that gives a host backed > >> filesystem in NuttX, but it works by publishing a host directory to > >> NuttX, and doesn't really simulate Flash / NOR. So it depends if you > >> are specifically looking to implement it as a pseudo NOR flash, if you > >> are wanting the FS to end up in a single file on the host that looks > >> like a NOR device, etc. > >> > >> If you specifically want NOR simulation that ends up in a single Host > >> file, then you could probably setup HostFS and then setup SmartFS (or > >> LittleFs, etc.) to work with an MTD device that is backed by file MTD > >> with the file residing in the HostFS mount. > >> > >> Also note that if you follow that approach and use SmartFS, I also wrote > >> a FUSE filesystem for Linux that allows it to natively mount a SmartFS > >> filesystem contained in a file. > >> > >> Ken > >> > >> On 1/27/23 11:55 AM, Alan C. Assis wrote: > >>> Hi Alexander, > >>> > >>> Some time ago Ken Pettit wrote a SmartFS simulator. > >>> > >>> If I'm not wrong it could be used with NuttX SIM(ulator). > >>> > >>> BR, > >>> > >>> Alan > >>> > >>> On 1/27/23, Alexander Oryshchenko <a.oryshche...@gmail.com> wrote: > >>>> What is the easiest way to use NOR- FFS (SmartFs, Spiffs, LittleFs...) > >> over > >>>> host's file? > >>>> May be somebody knows NOR FLASH simulator for Linux? > >>>> Any other way? > >>>> > >> > >
