Kris,
That would be great if you could post or send some documentation on how to get
an executable running using the busybox shell. I talked to Derek earlier in
June and he indicated that there may be a HelloWorld example project that may
be posted sometime in the future but was not able to say when.
Tai
--- In "Kris" <> wrote:
>
> You are correct in that the boot process is different on the TS-7500 and
> TS-7800. We have proprietary boot code in the FPGA that is used to load the
> kernel from the desired medium and then start executing which in turn ends up
> in the fastboot shell. The fastboot shell is equivalent to a RedBoot/U-Boot
> shell and is much much much more flexible since it is a full busybox bash
> shell and linux kernel.
>
> The bootloader on both of these is designed to parse a partition table and
> dump the kernel partition of an SD card to memory and then jump to the start
> of memory where it is located. If you can create a blind executable that
> will just happily execute in place at 0x2180_0000 you can use that in place
> of the kernel image.
>
> If you are interested in this as a learning experience than more power to
> you. But if you are trying to get more flexibility out of the system, I
> highly doubt either of those bootloaders will be able to provide
> functionality that our bootloader cannot. I would be happy to help you
> accomplish your goals using our shell.
>
> -Kris Bahnsen
> Technologic Systems
>
>
> --- In "THeng5243" <taiheng@> wrote:
> >
> > Hello Everyone,
> >
> > I'm considering purchasing a TS board for educational purposes to play with
> > OS fundamentals which would require access to the bare metal. I was
> > wondering if anyone out there has been able to load U-Boot or Redboot onto
> > the 7500/7800 series, or if anyone could comment on if it is possible.
> >
> > From what I can tell from past posts this has only been tried on the 7200
> > series, but the boot process seems slightly different on the newer boards.
> > I assume that if I can compile a U-Boot/redboot kernel and rootfs and load
> > it onto the correct SD/flash partitions it should work but I'm not sure if
> > this is an oversimplification on my part.
> >
> > Any guidance or recommended documentation that I should look at would be
> > most helpful!
> >
> > Thanks,
> >
> > Tai
> >
>
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