Other Parts Discussed in Thread: BQSTUDIO
Hello,
when I'm running a successful learning cycle with the bq27421 EVM and bqstudio using a 230mAh battery the parameters in calibration class get changed. This is not a problem for Int Temp Offset, Pack V Offset, CC Offset that will be updated during automatic calibration (CCA) in the final hardware. However Board Offset, CC Cal Temp, CC Gain and CC Delta parameters are changed also and represent the values from bq27421 EVM and not from the final hardware, So if I load the so generated golden image to the final hardware I have wrong values for this parameters in the final hardware. How should I handle this?
The values in the golden Image are:
| Calibration,"Data","Board Offset","1","Counts" | |||
| Calibration,"Data","Int Temp Offset","0.0","°C" | |||
| Calibration,"Data","Pack V Offset","0","mV" | |||
| Calibration,"CC Cal","CC Offset","1","Counts" | |||
| Calibration,"CC Cal","CC Cal Temp","302.6","°K" | |||
| Calibration,"CC Cal","CC Gain","0.3418","Num" | |||
| Calibration,"CC Cal","CC Delta","407744.9063","Num" | |||
| Calibration,"Current","Deadband","2","mA" |
CC Gain and CC Delta are very different from the default values and I suppose they will give wrong current readings.
Regards
Nikolaus
