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BQ40Z80: BQ40Z80 UpdateStatus and Ra table updates issue while performing learning cycle

Oguzhan Danisman
Prodigy 35 points
Part Number: BQ40Z80
Other Parts Discussed in Thread: BQSTUDIO

Tool/software:

I initiated the learning cycle process using the BQ40z80 integrated circuit, referring to the SLUA848 document. I followed the steps precisely, but the UpdateStatus and Ra table updates did not occur in the final step. The steps I followed are as follows:

  1. Determined the ChemID using GPCTOOL.
  2. Defined the ChemID using BQStudio.
  3. Manually set UpdateStatus to 0x00. Performed a RESET after setting GAUGE_EN. All flags were observed correctly, and UpdateStatus transitioned to 0x04.
  4. Performed discharge at C/2 rate.
  5. Relaxed for 5 hours.
  6. Charged at C/2 rate.
  7. Relaxed for 2 hours (Qmax update occurred, and UpdateStatus updated to 0x05).
  8. Performed discharge at C/5 rate (Ra table was not updated).
  9. Relaxed for 5 hours (UpdateStatus remained at 0x05 and did not transition to 0x06).

I am attaching the autoexport.gg files obtained during the learning cycle. I look forward to your support regarding this matter.

learning.rar