[U-Boot] break command.

Wolfgang Denk wd at denx.de
Sun Feb 17 21:49:36 CET 2013


Dear Harvey Chapman,

In message <2586B402-FB69-465C-82A4-62A065C74234 at 3gfp.com> you wrote:
>
> > As soon as U-Boot gives control to the payload (Linux or whatever)
> > there is no possible assumption that U-Boot remains intact in RAM, so
> > your only chance is indeed some hardware reset... But then the question
> > is not related to U-Boot any more.
> 
> On that note, does anyone know of a device that would do this? Perhaps a combination device like this:
> 
> - USB interface to a pc
> - serial port for device
> - relay controllable A/C power plug (U.S.)
> - controllable gpio (for wiring to a power button, reset switch, etc)

The standard approach is to use a hardware watchdog that will reset
the board if it is not triggered in time.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
A good marriage would be between a blind wife and deaf husband.
                                               -- Michel de Montaigne


More information about the U-Boot mailing list