USB firmware block footer

[Albert Cahalan]

On 8/15/07, Holger Schurig <hs4233 at mail.mn-solutions.de> wrote:
> > Anybody know what the last 4 bytes of each block are?
> > I'm seeing a 16-byte header, up to 508 bytes of data,
> > and a 4-byte footer.
>
> I don't know it, but I guess it's kind of a checksum, e.g.
> ones-complement, crc32, whatever.

Two checksums?

There is a CRC in the 16-byte header.