Other Parts Discussed in Thread: BQ34Z100EVM, BQSTUDIO
Hello,
My BQ34Z100EVM set-up has both a charger and CBA (electronic load device) connected in preparation for learning.
The issue arises with the CBA connected, yet the current measured between the EVM and the CBA is zero.
With no current flow, the gauge reads 22mA after an automatic Board Offset calibration in BQSTUDIO.
Forcing Board Offset=-128 (max value) reduces it to 14mA.
I used the following master reboot procedure to get to this point.
(1) Computer reboot, reinstall newest version of BQSTUDIO
(2) Disconnect EVM (Unplug EVM connections to EV2300 I2C, Battery, Charger & CBA)
(3) Reconnect EVM
(4) Program the newest firmware
(5) Import the DataFlash from GG file created for learning.
(6) Calibrate CC offset, Board Offset, and then Voltage.
I didn't have this issue for the ChemID data log run because I calibrated the EVM without the charger and CBA connected.
The charger was connected only for the charge phase, and the CBA was connected only for the discharge phase.
For learning, is it problematic to connect the electronic load device only during the discharge phases?
If so, can I resolve the non-zero current issue?
Sincerely,
Rom Caroselli