This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LDC2114EVM: Can regiser be saved what I want after power on agian ?

Part Number: LDC2114EVM
Other Parts Discussed in Thread: LDC2114

Hello,

This is Fang from GREE in Zhuhai city.

LDC2114 EVM is used. How to save before value after power on again ? Some steps are below:


1. I chage LC_DIVIDER`s value 0X02(now is 0X02) to 0X04 with GUI tool, it works, and the value I read is correct.
2. But register LC_DIVIDER change back to0X02 (but not default value 0X03) after power on/off. It looks that I can not rewrite.
I try the other registers, the same situation. I am sure I write successfully because I read before power off.

My questions are:
1. Shold all registers refresh the default value after EVM brd power on again? Or it just change back to before value not default?
2. Your mention need MCU if I want. So can some register`s vaule be fixed from factory ? Value will be kept,we dont want to change with I2C.
3. What different between “Registers”tap and “Configureation”tap ?

BR
Thank you

  • Hello,

    There is no way to prevent the LDC2114's registers from resetting to their default values after power-cycling the device. If you are power-cycling the LDC2114 but not disconnecting the EVM from your computer, the GUI may not read the correct values from the device. Please completely disconnect the EVM from your computer to power-cycle the LDC2114.

    It's not possible to customize the EEPROM values.

    The Configuration tab and the Registers tab share many of the same functions. If you change a value in one, the corresponding value on the other tab should change. The Configuration tab is provided as a way to easily configure the LDC2114 without referencing the register map in the datasheet.

    Best Regards,