1 Reply Latest reply on Mar 12, 2018 3:41 AM by srdr

    sdxc sdcard -fx3s

    geethadiwakargeetha_2778001

      hi,

      i wanted to interface sdxc sdcard to s0 port of fx3s

      i got know that fx3 needs an external regulator to swich from 3.3v to 1.8 IO supply (so port)

      and i have gone through cypress community regarding FX3S- Schematic of USB RAID ON  CHIP USB DONGLE

       

      in which ,

      they are using gpio control on regulator.

      they are using GPIO_16(DQ12) and respective software code as

      initparams.lowvoltage=cytrue;

      initparams.voltageswgpio=VSEL_S0_GPIO;

       

      My question is

      1)is it compulsory to use specific gpio (GPIO_16)?

      2)can i use any other gpio?

       

      thank you...

      if any user manual or document is there,please provide me.

        • 1. Re: sdxc sdcard -fx3s
          srdr

          Geetha,

           

          There is no dedicated GPIO for controlling the regulator.

          You can use any GPIO for the same purpose and provide the same GPIO number in the initparams.voltageswgpio field.

          Take care of initialization and configuration of that particular GPIO in the firmware.

           

          Regards,

          Sridhar

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