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SD card SDIO protocol ANSI C library

Harry
Expert 2920 points

thanks TI for introducing me to the FATFS library through TIVAWare which supports interfacing with the SD card through SPI. it served my purpose.

I am wondering if there would be a library to support the other mode of accessing the SD cards. the SDIO mode for faster  speeds. e.g. to store a series of images coming off a camera etc.

I don't think TIVAWare has a library that supports SDIO mode. Where is it possible to find such a library?

if I do, would that be as easy as calling functions off the FATFS library or is there a series of complex tasks that need to completed to establish the SDIO communication? 

thanks.

  • 0
    TI__Guru**** 244380 points

    Hello Amalinda

    TIVA devices in native form do not support SDIO communication. On TM4C129 devices you can use the Adv/Bi/Quad mode to construct the SDIO protocol (not the 8-bit SDIO) or use bit bang of GPIO to do so

    The community may have richer examples on that, so till someone else responds, you would have to do it yourself.

    Regards

    Amit

  • 0 in reply to Amit Ashara
    Expert 2920 points

    no actually i dont need it ASAP. Im just using SPI mode and its more than enough for my application. But as a student it would be nicer to know how to access faster and who knows, it may come handy any moment. Like when saving a series of images from a camera to a SD using an ARM. 

    Amit thanks always for your replies.