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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 |
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USB flash drive for the HC12
Started by ●February 9, 2004
Reply by ●February 9, 20042004-02-09
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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 ●February 9, 20042004-02-09
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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 > > |
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Reply by ●February 9, 20042004-02-09
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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 > > > > > > > > |
