Cristiano Cesaretto wrote:
> I can't figure out how the code was deleted from pic.

You haven't related any symptoms that indicate the code was "deleted".  It
could be as simple as a single word getting trashed.  To start with, I woul=
d
read back the data in the PIC with a programmer and compare the result to
the HEX file, or do the verify directly with the programmer if it has that
capability.  It might be easier to guess what happened when you know what
got trashed.

Since this code contains a bootloader, there are instructions in there
somewhere that erase and write program memory.  One possibility is that you
have a bug that causes erroneous jumping, sometimes into this code.  Also, =
I
have not generally been impressed with Microchip firmware.  Just because it
came from Microchip doesn't mean it's beyond suspicion.  In fact I would
consider it suspicious because it came from Microchip.

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