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FULL CHARGE BIT is not set ----Problem with BQ27510 Golden image file generation

Lijo Thomas
Intellectual 540 points
Other Parts Discussed in Thread: BQ27510EVM

Hi,

We are using BQ27510EVM  module for generating the DFI file for our 2400mAh Battery.

We are able to identify the best matching chemistry for our battery from the list provided in the Gas Gauge evaluation software.

We come to the last stage of the learning cycle 5A.

We did the first two steps in the Learning cycle 5A, Discharge the battery automatically and then wait for 5 hours

The 3rd step, We charge the battery manually and when the charge current drops to c/100, we stopped charging and waited for 2 hours

But when we connect the battery to EVM module, the FULL CHARGE BIT is not set. 

When we checked the battery voltage, it is fully charged.

We tried to contact the TI local distributor, but they are not able to guide us.

Please any one help us to solve the issue, its urgent

  • 0
    TI__Expert 4115 points

    Hello Lijo,

    Can you please provide us with some more information about the configuration of the fuel gauge?  More specifically, what is the value of the "FC Set %" parameter (Data Flash screen > Configuration Tab > Charge Termination SubClass) in the data flash?  Also, what is the voltage when you connect the battery to the EVM and what value of StateOfCharge() (SOC) does the gauge report when you connect the battery to the EVM?

    After we have this information, I think we will better be able to provide information as to what is happening here.  Thank you.

  • 0 in reply to Jared Casey
    Intellectual 540 points

    Hi Casey,

    Thanks for your prompt response.

    When we did the testing in some other board, the FC Bit was set successfully. 

    And we reached the last stage of the learning cycle. It will take another 5 hours to discharge and wait. 

    Hope this will work . If i am getting trouble , will get back to you with error report.

    One more help required, could be able to share the FlashStream. exe , so that i can transfer the .DFI file generated via i2c commands.

  • 0 in reply to Jared Casey
    Intellectual 540 points

    Dear Casey,

    Please find the details you have asked, I have attached the screenshot.

    We need to continue the Learning Cycle once again to get the details you have asked.

    Again the same problem happened. FC Bit is not Set.

    For Charging the battery in learning cycle 5A , we are manually charging the battery by connecting to a separate charger circuit.

    After the Battery is fully charged, we are connecting the Battery to the EVM module.

    Please guide us are we are in trouble.