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? > >> > >
