SD communication protocol

Carlos Camargo cicamargoba at gmail.com
Wed May 19 10:56:09 EDT 2010


Do you know a SDIO  reference project?


Carlos


On Wed, May 19, 2010 at 9:47 AM, Antti Lukats
<antti.lukats at googlemail.com>wrote:

> well did use also an existing base :)
> from my junk-stack
>
> the no-ip.biz its not SDIO he just named it wrong its SD core
> and not verified...
>
>
> Antti
>
> On Wed, May 19, 2010 at 5:43 PM, Carlos Camargo <cicamargoba at gmail.com>
> wrote:
> > Hi
> >
> >>
> >> well, linux should have sdio uart built in :)
> >
> > My students are trying to implement a basic SDIO layer, but, they are
> using
> > an existing project [1].
> > I don't know if this code works (Is my students work :) )
> >
> >>
> >> so the goal is to have no extra drivers needed, but
> >> there would be later need to test the special things as well
> >> we did buy one ben just for the SDIO testing, but so far we
> >> have only done as much as connecting it 16804A and checking
> >> out that that ben (factory image) does send 0x05 command
> >> that is it does try to init SDIO :)
> >>
> >> what made us very happy.. that is the default image maybe
> >> already useable (to some extent) for SDIO use (at least testing)
> >
> > If you need some help with this project don't  hesitate  to ask us, I
> think
> > that you are working on a lot of projects :)
> >
> > Best Regards
> >
> > Carlos
> >
> >
> >>
> >> Antti
> >>
> >>
> >
> >
> >
> >  [1] http://bknpk.no-ip.biz/my_web/SDIO/
> >
> > Carlos
> >
> >>
> >> On Wed, May 19, 2010 at 5:24 PM, Carlos Camargo <cicamargoba at gmail.com>
> >> wrote:
> >> > If you want, we can test your old projects on BEN, Do you have the
> Linux
> >> > drivers for your SD drivers?
> >> >
> >> > Carlos
> >> >
> >> > On Wed, May 19, 2010 at 9:17 AM, Antti Lukats
> >> > <antti.lukats at googlemail.com>
> >> > wrote:
> >> >>
> >> >> we are developing own SD/SDIO/MMC device side IP cores, so the
> gadgets
> >> >> would run at full speed
> >> >> that is at least 25mhz/4 bit mode, nothing much to see, all tests on
> >> >> FPGA development boards.
> >> >> ah, actually I have 4 different old prototypes in SD/microSD format
> >> >> but well we will be making
> >> >> new ones soon, then also pics
> >> >>
> >> >> Antti
> >> >>
> >> >> On Wed, May 19, 2010 at 5:11 PM, David Reyes Samblas Martinez
> >> >> <david at tuxbrain.com> wrote:
> >> >> > anything we can see at least as idea?
> >> >> >
> >> >> > 2010/5/19 Antti Lukats <antti.lukats at googlemail.com>:
> >> >> >> well we are doing this already
> >> >> >> plannning to release SDIO like gadgets that can be used in bens sd
> >> >> >> slot
> >> >> >>
> >> >> >> Antti
> >> >> >>
> >> >> >> On Wed, May 19, 2010 at 4:53 PM, Camilo Andres Diaz Botia
> >> >> >> <cadiazb at gmail.com> wrote:
> >> >> >>> I want to create a communication protocol to control any hardware
> >> >> >>> device using the sd port as an in/out port. I've been looking
> >> >> >>> through the code in
> >> >> >>>
> >> >> >>>
> >> >> >>>
> /openwrt-xburst/build_dir/linux-xburst_qi_lb60/linux-2.6.32.10/driver
> >> >> >>> s/mmc/,
> >> >> >>>
> >> >> >>> and i managed to see the commands that the hots (in this
> >> >> >>> case the ben nanonote) sends to a sd card while initializing,
> >> >> >>> writing and reading it. However, the driver I've been reading is
> a
> >> >> >>> low level code, I need to find the driver that calls the one in
> the
> >> >> >>> file above and tells it the commands to be sent. So, whereabouts
> is
> >> >> >>> the driver I should modify in order to send the commands I
> desire?
> >> >> >>>
> >> >> >>> Thank you in advance.
> >> >> >>>
> >> >> >>> Camilo Diaz
> >> >> >>>
> >> >> >>> _______________________________________________
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> >> >> >>
> >> >> >> _______________________________________________
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> >> >> >>
> >> >> >
> >> >> >
> >> >> >
> >> >> > --
> >> >> > David Reyes Samblas Martinez
> >> >> > http://www.tuxbrain.com
> >> >> > Open ultraportable & embedded solutions
> >> >> > Ben NanoNote, Arduino, Openmoko
> >> >> > Hey, watch out!!! There's a linux in your pocket!!!
> >> >> >
> >> >> > _______________________________________________
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> >> >>
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> >> >
> >> >
> >> > --
> >> > 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
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> >> >
> >>
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> >
> >
> >
> > --
> > 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
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> >
>
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-- 
Carlos Iván Camargo Bareño
Profesor Asistente
Departamento de Ingeniería Eléctrica y Electrónica
Universidad Nacional de Colombia
cicamargoba at unal.edu.co
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