Other Parts Discussed in Thread: BQSTUDIO, , GPCCHEM, EV2400
Tool/software:
Hi,
I did as suggested here: https://www.ti.com/lit/pdf/slua777
- Updated the base FW of the fuel gauge to 0101 via bqStudio
- Did an analysis of our battery with the EV2400 and the BQ28Z620EVM-071 for the gpcchem tool as described in several documents.
- Set the ChemID and all the other parameters from the document above in bqStudio (Design Capacity = 820 mAh, Charge Termination Taper Current = 70 mA, Discharge Current Threshold = 45 mA, Charge Current Threshold = 40 mA, Quit Current Threshold = 10 mA, Term Voltage = 3100 mV, Design Voltage = 3800 mV). As the battery (1s) has an integrated protection circuit, I had to set the values a little bit under the min/max values from the datasheet in order to prevent the protection to cut off the battery.
- Did a complete learning cycle while observing VOK, RDIS, REST, QMax, FC and LStatus. I went on to the next phase only after the required states were okay.
- After the learning cycle completed, the LStatus was 0E. I set the update status to 02 as found in another document. Obviously, this is no longer necessary and only for legacy gauges.
I generated a golden file and put it on my custom hardware, but with the eval board and the custom hardware, the RSoC always stays at 100 %, remaining capacity and Full charge Capacity are 0 mAh.
(Same with another golden file, generated after the learning cycle and before setting Update Status to 2).
Do I need to enable/disable GAUGING or something else? I tried that, did a RESET, Power cycle and whatsoever
.
I also noticed that the INIT bit from the battery status is always set.
Thanks in advance to whoever helps or tries to help
