Using the keyboard to enable USB booting

Wolfgang Spraul wolfgang at qi-hardware.com
Mon Aug 31 22:24:18 EDT 2009


Carlos,

> Maybe I don't understand. This switch is available for the user directly? I
> mean, one user can change its position accidentally ?

No.
It's a dip switch. Only for developers (kernel devs I'd say) or people that
want to use the device or board in a client-server config.
Also please note, we are only discussing the next batch of experimental
prototype boards here (20 I think), not the Ben NanoNote mass production.

Wolfgang

On Mon, Aug 31, 2009 at 09:15:24PM -0500, Carlos Camargo wrote:
> On Mon, Aug 31, 2009 at 8:54 PM, Adam Wang <adam at qi-hardware.com> wrote:
> 
> >  Hi,
> >
> > Carlos Camargo wrote:
> >
> >
> >
> > On Mon, Aug 31, 2009 at 9:24 AM, Adam Wang <adam at qi-hardware.com> wrote:
> >
> >>  Hi Carlos,
> >>
> >> Carlos Camargo wrote:
> >>
> >> Hi Adam
> >>
> >> The switch hole is in the battery "hole" ?
> >>
> >>
> >>  No, it's not in the battery hole, sorry I should attached this picture,
> >> there's a yellow square color marked, please see this.
> >>
> >> http://downloads.qi-hardware.com/hardware/qi_avt2/pcb/PLACEMENT/bottom_slide_switch.jpg
> >>
> >
> >
> >
> >
> > This switch will be accessible from the user? I think that, this switch can
> > create user problems, if you move the switch to boot mode
> >
> >
> >   The switch for boot have two modes of selection, one position for
> > switching to USB boot when you slide it to one side (means to connect to
> > GND), the other position for switching to NAND boot when you slide it to
> > another side (means to connect to High); this switch will locate on the
> > bottom side, the default boot we can define after producing. Could you
> > describe more in details in what kinds of scenario will be like at user
> > side? May we slightly didn't take consideration well.
> > Adam
> >
> 
> 
> Maybe I don't understand. This switch is available for the user directly? I
> mean, one user can change its position accidentally ?
> 
> 
> Carlos
> 
> 
> 
> >
> >
> >>
> >>
> >> Can you please check the file:
> >>
> >> http://downloads.qi-hardware.com/hardware/qi_avt2/kicad/tQi.tar.bz2
> >>
> >> There are some kicad footprints, we need some feedback about the size,
> >> pitch etc
> >>
> >> Thanks
> >>
> >>  I'll check them later, sorry I have to check the gerber files in these
> >> two days.
> >> Will inform to you.
> >> Thanks,
> >> Adam
> >>
> >>
> >> Carlos
> >>
> >>
> >> On Mon, Aug 31, 2009 at 7:57 AM, Adam Wang <adam at qi-hardware.com> wrote:
> >>
> >>> Hi,
> >>>
> >>>
> >>> No, my ideal was totally not good. so we'll have a real like slide
> >>>> switch[1] for bottom of board or slide switch[2] for side of board. But I
> >>>> have to check if having bottom or side of device from layout space check.
> >>>> And check with vendor which one is the most popular and easier get.
> >>>> Will keep list posted.
> >>>> Thanks,
> >>>> Adam
> >>>>
> >>>>  After confirmed with part vendor and checked available layout
> >>> placement, the selected slide switch[1] for boot selection is located around
> >>> reset key. Please ref. to [2].
> >>> It will need to drill a small hole on bottom mechanical case, so will be
> >>> a little ugly from bottom view.
> >>> Adam
> >>>
> >>> [1] http://www.hy1688.com/SWITCH/SLIDE%20SWITCH/SLIDE/EPS40XX.htm
> >>> [2]
> >>> http://downloads.qi-hardware.com/hardware/qi_avt2/pcb/PLACEMENT/boot_switch.jpg
> >>>
> >>>
> >>> _______________________________________________
> >>> Qi Developer Mailing List
> >>> Mail to list (members only): developer at lists.qi-hardware.com
> >>> Subscribe or Unsubscribe:
> >>> http://lists.qi-hardware.com/cgi-bin/mailman/listinfo/developer
> >>>
> >>
> >>
> >>
> >> --
> >> Carlos Iván Camargo Bareño
> >> Profesor Asistente
> >> Departamento de Ingeniería Eléctrica y Electrónica
> >> Universidad Nacional de Colombia
> >> cicamargoba at unal.edu.co
> >>
> >> ------------------------------
> >>
> >> _______________________________________________
> >> Qi Developer Mailing List
> >> Mail to list (members only): developer at lists.qi-hardware.com
> >> Subscribe or Unsubscribe: http://lists.qi-hardware.com/cgi-bin/mailman/listinfo/developer
> >>
> >>
> >>
> >> _______________________________________________
> >> Qi Developer Mailing List
> >> Mail to list (members only): developer at lists.qi-hardware.com
> >> Subscribe or Unsubscribe:
> >> http://lists.qi-hardware.com/cgi-bin/mailman/listinfo/developer
> >>
> >
> >
> >
> > --
> > Carlos Iván Camargo Bareño
> > Profesor Asistente
> > Departamento de Ingeniería Eléctrica y Electrónica
> > Universidad Nacional de Colombia
> > cicamargoba at unal.edu.co
> >
> > ------------------------------
> >
> > _______________________________________________
> > Qi Developer Mailing List
> > Mail to list (members only): developer at lists.qi-hardware.com
> > Subscribe or Unsubscribe: http://lists.qi-hardware.com/cgi-bin/mailman/listinfo/developer
> >
> >
> >
> > _______________________________________________
> > Qi Developer Mailing List
> > Mail to list (members only): developer at lists.qi-hardware.com
> > Subscribe or Unsubscribe:
> > http://lists.qi-hardware.com/cgi-bin/mailman/listinfo/developer
> >
> 
> 
> 
> -- 
> Carlos Iván Camargo Bareño
> Profesor Asistente
> Departamento de Ingeniería Eléctrica y Electrónica
> Universidad Nacional de Colombia
> cicamargoba at unal.edu.co

> _______________________________________________
> Qi Developer Mailing List
> Mail to list (members only): developer at lists.qi-hardware.com
> Subscribe or Unsubscribe: http://lists.qi-hardware.com/cgi-bin/mailman/listinfo/developer




More information about the discussion mailing list


interactive