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AMIC110: Does those PINs is necessary for ETHERCAT protocol at amic110 ice board?

Denny%20Yang99373
Expert 3805 points
Part Number: AMIC110


Hi all,

Customer want do a reduce design base on amic110 ice board. It should support ETHERCAT protocol.

But we not sure if below pin design is necessary for ethercat protocol at amic110 ice board schematic.

1, Schematic page 5, ECAT_LATCH0/1

2,page 5, IRQ/FIRMWARE_LOADER/LED_RUN/UART1_DE/LED_ERROR

3,page 5 , GPIO_PHY1/2_RESETn

Customer want to remove those design, but not sure if the ETHERCAT demo use those pin.

Please help to confirm, thanks!

BR,
Denny

  • 0
    TI__Mastermind 43296 points
    Denny,

    Except UART1_DE, the other signals are used in EtherCAT -

    1, Schematic page 5, ECAT_LATCH0/1
    See infosys.beckhoff.com/english.php : If an ESC is configured accordingly it can store the current local time if an external event occurs, i.e. it can place it into a buffer without delay using a capture unit. Examples for such external events are: arrival of the EtherCAT frame, end of the EtherCAT frame, edge on a dedicated pin of the ESC, communication with a connected microcontroller, and a wide range of other options.

    2, page 5, IRQ/FIRMWARE_LOADER/LED_RUN/UART1_DE/LED_ERROR
    IRQ: process data interface interrupt for notifying host processor like C2000.
    FIRMARE_LOADED: Indicate PRU firmware is loaded and EtherCAT slave is ready to use.
    UART1_DE: UART drive enable signal for half-duplex mode, which is not needed for EtherCAT DDR-less
    LED_RUN, LED_ERROR: Indicate EtherCAT run into working or fault state, must have for EtherCAT conformance.

    3,page 5 , GPIO_PHY1/2_RESETn
    No, you can’t use the global power on reset. There is a sequence of the SYSBOOT glue logic relative to the PHY1 operations.

    Regards,
    Garrett