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FatFs implementation for DK-TM4C129X on board flash.

Vishal Thakur
Prodigy 70 points


Is there any implementation where Fatfs is ported to on board flash (Macronix ) of DK-TM4C129X .

  • 0
    TI__Guru**** 244400 points
    Hello Vishal,

    Yes. The example

    D:\ti\TivaWare_C_Series-2.1.2.111\examples\boards\dk-tm4c129x\usb_dev_msc

    turns the Serial Flash into a FatFs enabled Mass Storage Class device.

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Prodigy 100 points

    Amit,

    This example is doing MSC only. Is there an example project doing FATFS for local Tiva file access like the FATFS  sdcard example?

    Thanks in advance.

    Pran

  • 0 in reply to Pran Haran
    TI__Guru**** 244400 points
    Hello Pran,

    The example does the same. Please check the readme

    "This example application turns the evaluation board into a USB mass storage class device. The application will use the onboard flash memory for the storage media for the mass storage device. The screen will display the current action occurring on the device ranging from disconnected, reading, writing and idle."

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Prodigy 100 points

    Not quite. The application I am looking for needs to do something like the SDCard example,(fatsd_DK_TM4C129X_TI_TivaTM4C129XNCZAD)  where from within the Tiva application I can open, read and write to files on the local storage device.

    The example you are referring to does not have local FATFs support.

    Right now the only option I have seen is to migrate serialFlash_FatFS_TM4C129_LP for the MX25 series flash in 129X development board.

    If I am mistaken, can you provide some additional information.

    Thanks

     

  • 0 in reply to Pran Haran
    TI__Guru**** 244400 points
    Hello Pran,

    OK, now I understand. I will suggest first formatting the on board flash memory (macronix flash) for Fat File System using the usb application. Once done, then you need to adapt sd card drivers to use Chip Select of the flash instead of the sd card. Then you would be able to reuse the on board flash for Fat File System. Not straight forward, but not too difficult.

    Regards
    Amit