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Original question:

PGA300: EEPROM value change

PGA300: Continued EEPROM value change

user6044956
Prodigy 160 points
Part Number: PGA300

Hello,

I couldn't reply in the previous thread, so I created a new thread.

> Above the normal lower value, and below the normal upper value the DAC will respond based on the input and your calibration coefficients. Below the normal lower value, and above the normal upper value the DAC will be set to the lower clamping value or the upper clamping value respectively. Please refer to the Clamping section of the datasheet for more detailed descriptions.

Thank you. I understood the normal pressure lower / upper value and the clamping value.

> If you read the EEPROM data from the EEPROM read/write page, does it change in any way between the two scenarios you show in your post?

I haven't confirmed it yet, but should I read the EEPROM values before and after the change in the set values after calibration on the EEPROM page and compare them?

Should I check the EEPROM settings such as LOW_CLAMP and NORMAL_LOW on the Low Level Configuration Page?

Regards,

  • 0
    TI__Mastermind 31655 points

    Hello,

    Yes, I would check the EEPROM values both before and after changing them in in the EEPROM map page. The full EEPROM map page will ensure that the actual EEPROM data is either changing or staying the same.

    The best place to check the EEPROM data is in the EEPROM map page. If there is no change to the actual data in the EEPROM map, then any change seen in the digital EEPROM page could be a result of a display error.


    Regards,

    Scott

  • 0 in reply to Scott Cummins
    Prodigy 160 points

    Hello,

    I recalibrated with another PGA300. Even in that case, the EEPROM values changed, and I checked them both before and after changing them in the EEPROM map page. When the GUI is restarted, the EEPROM lock is unlocked during communication, so I locked it again. (Photo above: Before change , photo below: After the change.) 

    The EEPROM values read were the same. Is it okay to think that this indicates that the change in the displayed value may be a GUI display error? Currently, operation and temperature compensation are working fine.


    Regards,

  • 0 in reply to user6044956
    Prodigy 160 points

    Hello,

     

    Please reply to my question.

     

    Regards,

  • +1 in reply to user6044956
    TI__Mastermind 31655 points

    Hello,


    Yes, this is due to a GUI display error. The EEPROM values do not appear to be changing in memory, only on the digital EEPROM GUI page.


    Regards,

    Scott