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Access Ball N19 as GIO Output

Lorenz Gruebler
Expert 1075 points
Other Parts Discussed in Thread: HALCOGEN, TMS570LS3137

Hello Forum,

I'am using the TMS570LS3137 ZWT MCU  where a SMSC8710Ai Phy is connected. This Phy needs a Bootstrap Information before i is reseted. My Problem is that I don't know how to Access the Ball N19 (AD1EVT) as GIO Output, because I cant set somewhere the GIO functionality in HalCoGen (3.03.01), but the Ball is marked as GIO in the Device Datasheet. Can someone explain how to set GIO mode, and what I need to configure before Initializing the EMAC an set the Ball to MII_RX_ERR.

regards,

Lorenz

  • 0
    TI__Intellectual 1325 points

    Hello Lorenz,

    You can find the configuration of ADEVT pin in GIO mode in ADC chapter of the TRM. Section 18.10.1 describes this functionality.

    The pin mux control registers PINMMR10 bits [0:2] control the functionality for pin N19. You can select between AD1EVT or MII_RX_ERR or RMII_RX_ERR. Normally the pin mux configuration in the Halcogen can be used to set the pin functionality at the startup unless there is a need to change from the one selected at startup. In that case, user code needs to write the appropriate registers.

    Best regards,
    Diwakar

  • 0 in reply to Diwakar Bansal
    Expert 1075 points

    Hello  Diwakar,

    I look over that point in the docu, now it is working,

    thank you

    Lorenz