Reply by hc08jb8 ●February 9, 20042004-02-09
IIRC, motorola has a new HC12 MCU under the UF32 family, which has
USB/NAND Flash,SD/MMC,ATA/IDE interface. I believe this chip is
targetted at those multi function memory reader devices. Prelimnary
info was given at a Motorola roadshow, however no datasheet or info
officially available yet. Try contacting moto support on this.
Jay

--- In , Peter Lissenburg <peter@s...> wrote:
> Hi Bob,
> I think the problem will be that the USB flash card
expects to see
> a USB master at the end of the line. Whereas the FTDI chips are USB
slaves.
> Another alternative is a MultiMediaCard or SD Card, instead, you
can talk
> to these via SPI, very low hardware overhead. Remove and plug into
a USB
> based card reader connected to the PC.
> I'm working on a limited FAT16 for these now. It may be available
in the
> (Near???) future.
> Good luck.
> Peter L. > At 11:07 PM 8/02/2004 -0500, you wrote:
> >Hi Everyone:
> >
> >We are using the 9S12DG128a, and ICC12compiler and want to add USB
for a
> >flash drive.
> >* Does anyone know of libraries either shareware or
commercially
> >(preferably available for the HC12, but just ANSI C would be fine)
in C to
> >implement a windows based file system on a USB flash memory card.
The
> >objective would be to use Windows Explorer to move the data file
to the PC
> >disk drive.
> >* Could anyone recommend a USB IC please? We are currently
using the
> >FTDI USB232BM IC for USB to RS232 conversion and it works well,
but I was
> >wondering if there was a similar IC that would do higher speed
transfers in
> >parallel to support high capacity flash disks.
> >
> >Thanks for the help.
> >
> >Bob Lewis
> >
> >
> >
> >
> >
> >
> >--------------------To learn
more
> >about Motorola Microcontrollers, please visit
> >http://www.motorola.com/mcu
> >o learn more about Motorola Microcontrollers, please visit
> >http://www.motorola.com/mcu
> >
> >Yahoo! Groups Links
> >
> >
> >
> >




Reply by Peter Lissenburg ●February 9, 20042004-02-09
Hi Bob,
I think the problem will be that the USB flash card expects to see
a USB master at the end of the line. Whereas the FTDI chips are USB slaves.
Another alternative is a MultiMediaCard or SD Card, instead, you can talk
to these via SPI, very low hardware overhead. Remove and plug into a USB
based card reader connected to the PC.
I'm working on a limited FAT16 for these now. It may be available in the
(Near???) future.
Good luck.
Peter L. At 11:07 PM 8/02/2004 -0500, you wrote:
>Hi Everyone:
>
>We are using the 9S12DG128a, and ICC12compiler and want to add USB for a
>flash drive.
>* Does anyone know of libraries either shareware or commercially
>(preferably available for the HC12, but just ANSI C would be fine) in C to
>implement a windows based file system on a USB flash memory card. The
>objective would be to use Windows Explorer to move the data file to the PC
>disk drive.
>* Could anyone recommend a USB IC please? We are currently using the
>FTDI USB232BM IC for USB to RS232 conversion and it works well, but I was
>wondering if there was a similar IC that would do higher speed transfers in
>parallel to support high capacity flash disks.
>
>Thanks for the help.
>
>Bob Lewis >
>--------------------To learn more
>about Motorola Microcontrollers, please visit
>http://www.motorola.com/mcu
>o learn more about Motorola Microcontrollers, please visit
>http://www.motorola.com/mcu
>
>Yahoo! Groups Links >
>
Reply by ra ●February 9, 20042004-02-09
Hellow Lewis

Have not tried it myself, but FTDI has a newer FT245BM module that uses
a parallel connection.

Best regards
Robert On Feb 9, 2004, at 05:07 Europe/Paris, Lewis, Bob wrote:

>
> Hi Everyone:
>
> We are using the 9S12DG128a, and ICC12compiler and want to add USB for
> a
> flash drive.
> * Does anyone know of libraries either shareware or commercially
> (preferably available for the HC12, but just ANSI C would be fine) in
> C to
> implement a windows based file system on a USB flash memory card. The
> objective would be to use Windows Explorer to move the data file to
> the PC
> disk drive.
> * Could anyone recommend a USB IC please? We are currently using the
> FTDI USB232BM IC for USB to RS232 conversion and it works well, but I
> was
> wondering if there was a similar IC that would do higher speed
> transfers in
> parallel to support high capacity flash disks.
>
> Thanks for the help.
>
> Bob Lewis
>




Reply by Lewis, Bob ●February 9, 20042004-02-09
Hi Everyone:

We are using the 9S12DG128a, and ICC12compiler and want to add USB for a
flash drive.
* Does anyone know of libraries either shareware or commercially
(preferably available for the HC12, but just ANSI C would be fine) in C to
implement a windows based file system on a USB flash memory card. The
objective would be to use Windows Explorer to move the data file to the PC
disk drive.
* Could anyone recommend a USB IC please? We are currently using the
FTDI USB232BM IC for USB to RS232 conversion and it works well, but I was
wondering if there was a similar IC that would do higher speed transfers in
parallel to support high capacity flash disks.

Thanks for the help.

Bob Lewis