On Sat, Jun 26, 2004 at 09:55:31AM -0500, David VanHorn wrote:
> At 04:49 PM 6/26/2004 +0200, Kyrre Aalerud wrote:

I should speak for Kyrre, but I can't resist... ;-)

>
> >My bootloader is coming along nicely :)
> >I have most of the functionality in place now.
> >
> >Specs are now:
> >- uses 106 words
> >- saves interrupt states and goes to a new interrupt-vector.
> >- receives data in 32 word blocks (32x2 bytes) wich are programmed and acked
> >for next block.
> >- does not reprogram first 256 words or memory as this block can be
> >protected by the internal memory fuse.
>
> What happens if I pull the cable in mid-load?

Loader will still be available but the application is toasted.

> Will the system recover, or become a "brick" that can only be recovered with
> a chip programmer?

Neither. It'll be a brick from the application standpoint. But the loader
will be intact and available to reload. There should be enough communication
between the PC loader app and the PIC bootloader for the PC loader app to
indicate that the application didn't get completely loaded.


BAJ

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