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Initialising a Sandisk MMC memory card — Parallax Forums

Initialising a Sandisk MMC memory card

ArchiverArchiver Posts: 46,084
edited 2003-07-08 09:01 in General Discussion
The thread "BS2 to Sandisk MMC memory card" in early
2002 described a problem I have in initialising a mmc card...
1. chip select high 2. send 80 clocks 3. ..etc.
Seems quite trivial but .......

It wasn't clear whether the poster ever resolved the
problem.

Has anyone successfully managed it?

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-07-07 18:15
    James,
    do you remember where the thread was posted?
    Original Message
    From: "jamestfrazer" <jim_frazer@m...>
    To: <basicstamps@yahoogroups.com>
    Sent: Monday, July 07, 2003 12:25 AM
    Subject: [noparse][[/noparse]basicstamps] Initialising a Sandisk MMC memory card


    > The thread "BS2 to Sandisk MMC memory card" in early
    > 2002 described a problem I have in initialising a mmc card...
    > 1. chip select high 2. send 80 clocks 3. ..etc.
    > Seems quite trivial but .......
    >
    > It wasn't clear whether the poster ever resolved the
    > problem.
    >
    > Has anyone successfully managed it?
    >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2003-07-07 23:35
    PARDON ALL CAPS. I HAVE BEEN ABLE TO READ AND TYPE ALL CAPS MUCH EASIER
    AND BETTER FOR OVER 50 YEARS.

    WOULD NOT THE FOLLOWING DEVICE WORK WITH A MMC TO PC CARD ADAPTER.

    73
    SPENCE

    http://www.star.net/people/~mvs/SDRVSPEC.TXT

    Message: 5
    Date: Mon, 07 Jul 2003 04:25:44 -0000
    From: "jamestfrazer" <jim_frazer@m...>
    Subject: Initialising a Sandisk MMC memory card

    The thread "BS2 to Sandisk MMC memory card" in early
    2002 described a problem I have in initialising a mmc card...
    1. chip select high 2. send 80 clocks 3. ..etc.
    Seems quite trivial but .......

    It wasn't clear whether the poster ever resolved the
    problem.

    Has anyone successfully managed it?
  • ArchiverArchiver Posts: 46,084
    edited 2003-07-08 08:54
    Mike,
    Message 18213 in this forum was the query; followed
    the same day by several replies.

    I found them by searching for;
    BS2 to Sandisk MMC memory card

    Jim Frazer
    _____________________________________________
    --- In basicstamps@yahoogroups.com, "Mike Mocenter"
    <mocenter@e...> wrote:
    > James,
    > do you remember where the thread was posted?
    >
    Original Message
    > From: "jamestfrazer" <jim_frazer@m...>
    > To: <basicstamps@yahoogroups.com>
    > Sent: Monday, July 07, 2003 12:25 AM
    > Subject: [noparse][[/noparse]basicstamps] Initialising a Sandisk MMC memory card
    >
    >
    > > The thread "BS2 to Sandisk MMC memory card" in early
    > > 2002 described a problem I have in initialising a mmc card...
    > > 1. chip select high 2. send 80 clocks 3. ..etc.
    > > Seems quite trivial but .......
    > >
    > > It wasn't clear whether the poster ever resolved the
    > > problem.
    > >
    > > Has anyone successfully managed it?
    > >
    > >
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the
    Subject and
    > Body of the message will be ignored.
    > >
    > >
    > > Your use of Yahoo! Groups is subject to
    http://docs.yahoo.com/info/terms/
    > >
    > >
  • ArchiverArchiver Posts: 46,084
    edited 2003-07-08 09:01
    THANKS SPENCE,
    YES IT IS EASIER TO READ.

    I AM USING A MICROCONTROLLER WITH AN SPI BUS
    WITH A FIFO BUFFER (msc12100) AND SO WOULD LIKE
    TO WRITE TO THE SPI ON THE MMC CARD FROM THE
    SPI PINS.

    JIM FRAZER
    _____________________________________________________
    --- In basicstamps@yahoogroups.com, "BOYD S. (SPENCE) MINER"
    <k4kep@b...> wrote:
    > PARDON ALL CAPS. I HAVE BEEN ABLE TO READ AND TYPE ALL CAPS
    MUCH EASIER
    > AND BETTER FOR OVER 50 YEARS.
    >
    > WOULD NOT THE FOLLOWING DEVICE WORK WITH A MMC TO PC
    CARD ADAPTER.
    >
    > 73
    > SPENCE
    >
    > http://www.star.net/people/~mvs/SDRVSPEC.TXT
    >
    > Message: 5
    > Date: Mon, 07 Jul 2003 04:25:44 -0000
    > From: "jamestfrazer" <jim_frazer@m...>
    > Subject: Initialising a Sandisk MMC memory card
    >
    > The thread "BS2 to Sandisk MMC memory card" in early
    > 2002 described a problem I have in initialising a mmc card...
    > 1. chip select high 2. send 80 clocks 3. ..etc.
    > Seems quite trivial but .......
    >
    > It wasn't clear whether the poster ever resolved the
    > problem.
    >
    > Has anyone successfully managed it?
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