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FDC1004QEVM: EEPROM does not work

Jirí Unger
Prodigy 10 points
Part Number: FDC1004QEVM
Other Parts Discussed in Thread: FDC1004, FDC1004EVM, FDC1004-Q1

Helo,

 I tried to change register setting via GUI app (Sensing solutions EVM GUI), and of course configuration too, but ​unfortunately after disconecting device and connecting the device back again i have lost all the settings i changed before. My question is simple. How can i save all changes to FDC1004QEVM and not only to my computer. 

Thank you for your answers.

  • 0
    TI__Expert 7900 points

    Hi,

    Thanks for posting to the Sensors forum.

    The FDC1004 does not utilize EEPROM for its configuration settings. The configuration settings should be programmed at power up, and the reset values for the device registers are found in the datasheet.

    In the Sensing Solutions GUI, you can save the current device register settings to a JSON file using the save register values button on the Register Page. You can then load previously saved register settings from the JSON file using the load register values button on the Register Page. Please see sections 2.6.4 and 2.6.5 of the FDC1004EVM user's guide for more info.

    https://www.ti.com/lit/ug/snau163c/snau163c.pdf 

    Best regards,

    Jesse

  • 0 in reply to Jesse Baker
    Prodigy 10 points

    Thank you for your answer. When i tried to upload json file, device disconnected in the application and i needed to reconnect the device to make it work. So if i understand it right, i can't rewrite registers in the device via GUI. But is it possible to rewrite registers in NI LabVIEW or if i will add some EEPROM to the board?

  • 0 in reply to Jirí Unger
    TI__Expert 7900 points

    Hi,

    The figure from the datasheet included below shows how the FDC1004-Q1 is connected to an external controller with an I2C peripheral. Each time the FDC1004-Q1 is power cycled, the external controller must program the FDC1004-Q1 configuration and data registers via the I2C peripheral

    I recommend using the Configuration tab in the Sensing Solutions EVM GUI for configuring the EVM. Please see section 2.7 of the FDC1004EVM user's guide for more info. We do not have any LabView VIs for the FDC1004EVM.

    https://www.ti.com/lit/ug/snau163c/snau163c.pdf 

    Best regards,

    Jesse