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Re: RedBoot porting
On Tue, Jan 09, 2001 at 07:39:03PM +0100, Andrew Lunn wrote:
> > This is strictly my $0.02 and could be totally irrelevant to everyone
> > else's situations, but:
>
> Thats one of the things with a RTOS and its boot loader. Everyone has
> a different situation and it has to be able to handle it. My 0.02CHF
> says that Redboot is not yet flexiable enough when FLASH is used by
> the application.
As a boot loader it's fine. The problem occurs when you try to
use it as a "BIOS" service provider for application code. Since
my application needs to burn flash with interrupts enabled, I
have to be extremely careful about how my application accesses
flash. That probably means I either run RedBoot in RAM, or
don't use virtual vectors. No matter how sophistacted you make
RedBoot, there aren't really any other ways around that problem.
--
Grant Edwards
grante@visi.com