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Discussion Groups | Rabbit-Semi | On File Systems & Battery Backed RAM
This is a group for folks designing and programming embedded systems using the Rabbit Semiconductor C-programmable microcontroller. Rabbit Semi is a spin-off from Z-World who makes a variety of embedded modules and tools. This group is not affiliated with either Rabbit or Z-World, but is a user forum for sharing ideas, asking questions, flaunting knowledge, and other typical user group stuff. The Rabbit is a powerful uC, supported by a full-featured C-compiler.
On File Systems & Battery Backed RAM - "mdiaz.tello" - Sep 29 15:09:23 2008
In our project, we would like to be able to write to files on a RAM
disk (preferably battery-backed). I read in the Rabbit documentation
that FS2 will work in this way, but when I tried to compile and run an
example program for FS2 on our RCM4300, I got an error back saying
that this file system is not supported on Rabbit 4000 devices. So,
I've looked into the documentation on the FAT file system (and i've
even run an example program) but I see no explicit mention of being
able to create a FAT RAM disk in battery backed RAM. Does that mean
that the Rabbit FAT implementation doesn't have this capability? If
so, would my only other recourse be to create large global arrays
declared "bbram protected" to simulate files, or is there a better way
to do that?
Thanks.
-MDiaz-Tello
------------------------------------
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disk (preferably battery-backed). I read in the Rabbit documentation
that FS2 will work in this way, but when I tried to compile and run an
example program for FS2 on our RCM4300, I got an error back saying
that this file system is not supported on Rabbit 4000 devices. So,
I've looked into the documentation on the FAT file system (and i've
even run an example program) but I see no explicit mention of being
able to create a FAT RAM disk in battery backed RAM. Does that mean
that the Rabbit FAT implementation doesn't have this capability? If
so, would my only other recourse be to create large global arrays
declared "bbram protected" to simulate files, or is there a better way
to do that?
Thanks.
-MDiaz-Tello
------------------------------------
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )