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AM335x Pin Mux Utility

Paul Joseph
Expert 2795 points

Can you explain what the modes in the pin mux utility refer to?

I want to use a SPI, the GPMC and DDR interface for my configuration, any conflicts doing that?

  • 0
    TI__Expert 6655 points

    Hi Paul,

    Can you elaborate on what information you required?

    You can take the pinmux utility from

    http://software-dl.ti.com/dsps/dsps_public_sw/am_bu/ampinmux/latest/index_FDS.html

    In the tool we can see all the modes (0-7). We can select the module on "left-top corner" so that the tool will show those module specific pins in current view.

    Regards

    AnilKumar

    Please mark this Forum post as answered via the Verify Answer button below if it helps answer your question.  Thanks!

  • 0 in reply to Anil
    Expert 2795 points

    Can you elaborate on what the modes refer to/ how are 0-7 related ?  This is my question.  Thank you.

  • 0 in reply to Paul Joseph
    TI__Expert 6655 points

    Hi Paul,

    We can configure the same pin for 8 different functionalities if applicable, depending on the usecase.

    If you want to configure GPMC_A0_MUX0 as pin functionality, you have to write the coresponding value to "Pad Control Register" based on mode, type of signal.

    GPMC_A0_MUX0 GMII2_TXEN RGMII2_TCTL RMII2_TXEN GPMC_A16_MUX0 PR1_MII_MT1_CLK EHRPWM1_TRIPZONE_INPUT_MUX1
    GPIO1[16]

    You can go through TRM, section "9.2.2 Pad Control Registers" for more details

    Regards

    AnilKumar

    Please mark this Forum post as answered via the Verify Answer button below if it helps answer your question.  Thanks!