Other Parts Discussed in Thread: BQSTUDIO, BQ27220
Tool/software:
I am trying to understand how OCV CMD is working using the EVM744 board.
I have configure OperationConfigB to 1013 to output GPOUT signal when first OCV or any OCV command is issued, however I wonder if I missed some other config because when I push the OCV_CMD button in the BQSTUDIO application, I can see the OCV CMD sent on I2C bus but I never see GPOUT toggling.
Even if i change the polarity of GPOUT in OperationConfigB I am not seeing any effect on GPOUT ...
Am is missing other configuration so that GPOUT signal can really be generated ?
Also in BatteryStatus register, the OCVGD / OCVCOMP bits are always set and never toggling even if I submit a new OCV CMD from the bqStudio tool. TRM document is not clear about that but do I need to write into the batteryStatus register to clear some of the OCVXX bits ??
I am using a logic analyser looking on I2C exchanges and also monitoring GPOUT changes.
Can you please advice on experiments ?
Regards
