Sorry, I was just looking at the datasheet for 18F4455. The datasheet
says 18F4455 and 18f4550 both have 2048 bytes ram, but when I compile
the blink samples it only says 928 bytes. This is not enough for the
fat32 lib.

Does someone here know why some ram is not usable? is it because of
USB?

Matt.

On Dec 2, 10:21 pm, mattschinkel <[email protected]> wrote:
> Yes... Just change the include, or better yet take the device block
> from the 18F4455 blink sample.
>
> My fat32 lib is a bit hard on memory since it supports fragmented
> files, I do suggest 18f4620. Be sure to use the newest version in the
> Jallib-Bee package. You should also use jalv2 command line option -no-
> variable-reuse to speed up compile. If you have questions, feel free
> to ask.
>
> The fat32_small library only supports reading/writing of one file.
> Read it's notes if you are going to use it.
>
> Matt.

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