Ok I have the two user guides for the BQ27GDK000EVM: SLUUB24 and SLUUAO1A. But neither really walks a customer through what is necessary to use BQStudio with it and characterize a battery well enough to create a parameter file for the fuel gauge under consideration. Lots of nice specs with all the wonderful commands and registers, schematics, block diagrams... But come on. Tell me what buttons to push, what data to enter, to just get my job done! A page and a half of actual user information is not enough. Read the line items listed in the SLUUAO1A. Do you really feel that the remainder of the document describes these well enough for someone to accomplish without further help?
I have my BQ27GDK000EVM kit coming today. I am being asked to provide a standardized list of 5 SOC thresholds for our products to then rely upon. Presently the BQ27421 G1A parts are not being initialized - so they come up with bogus full SOC when the battery is almost discharged(!). Our products must initialize the 421 as the customer may deplete battery charge fully to Vbat shutoff and memory loss on the chip (power bank application). So I need to understand what battery state to start with if it matters, how many charge/discharge cycles I need to do and if discharge current rate matters all that much. Discharge rates are standard USB product profiles (phones/tablets under 2A). My products indicate SOC by 5 LEDs so minute accuracy is not necessary. How do I decipher a "learned" part's data file from the EVM to obtain parameters to embed in our micro's initialization code to the 421 upon recovery from a reset?
