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MCF8316AEVM: MCF8316AEVM

Part Number: MCF8316AEVM

"There is an issue with the device connectivity. Please restart the GUI"

I have this message... Yesterday ever ting was fine. Could read motor voltage and spin up the motor. Control via I2C.
Also save the MPET values.

Board runs without the software.

But when I try to reconnect ( want to change the values)
It lights green and connected.

But as soon as I press a button.

Or reset the device i'm in an endless loop.

Tried it with Firefox, Chrome also on a other PC... allays the same.

Any idear?

  • Hi Andreas,

    If you've tried to write settings to EEPROM registers previously, it's possible that the I2C target address was set to a different value from the default 0x01 in the EEPROM. If that's the case, then please try:

    • Power down and disconnect EVM from PC
    • Re-launch the GUI
    • Power up and connect EVM to PC
    • Click on "Find Address" button on the side panel
    • If a different target address is found, then the GUI should now be able to communicate with the EVM.

    Regards,
    Eric C.

    • Power down and disconnect EVM from PC

      no change.
    • Re-launch the GUI

      no change ... also not on other PC.

    • Power up and connect EVM to PC

      no change...

    Click on "Find Address" button on the side panel

    -> This one did the trick.
    I must somehow changed the TARGET ID ( I2C) to 0x0 ( original 0x01)

    I know I changed the DEVICE_CONFIG1 -> BUS_VOLT... but did wanted to change that.

    But the message "There is an issue with the device connectivity. Please restart the GUI" direct you in the complete wrong direction.

    You should add " or check the I2C_TARGET_ADDR is correct."

    I restarted the GUI 30 times -:)

    But thanx for help. Now I can start optimizing my motor.

    The MPET worked for my only if I lowered the Voltage...

    Now I sometimes get stuck with the messe: "CLOSED_LOOP_ALIGNED" but motor is not turning any more also no error is present?!

    Only a complete reboot will solve this...any idear?

    BRclosed_loop_aligned

    Andreas

  • Hi Andreas,

    Glad that the "Find Address" button resolved the connection issue. We will update the GUI to inform user about possible I2C target address mismatch in case of communication error.

    Regarding the device stuck in CLOSED_LOOP_ALIGNED, could you please check what the [ABNORMAL_BEMF_THR] is set to?

    If it is set to 10%, could you please try increasing it to see if the ABNORMAL_BEMF fault will get triggered when the device is in CLOSED_LOOP_ALIGNED without the motor spinning?

    Regards,
    Eric C.

  • Hi Andreas, 

    Please let us know if you require further assistance on this debug. 

    If not, please help mark thread as resolved. Thanks 

    Best Regards, 
    Andrew