incorrect definition of capacity

Hi Sergey,

Can you let us know which device it is you are using. Did you calibrate your device?

thanks

Onyx

Onyx,

Device BQ34Z100. I have long been in correspondence. Last post

http://e2e.ti.com/support/power_management/battery_management/f/180/p/272461/958120.aspx#958120

Calibration is complete. Voltage and current is correct.

Why now after charge (discharge) during relax time Full charge Capacity, Remaining Capacity and State of Charge reset to 0 ??? (see logs 6507.28.06.2013_learn.log) 

thanks

Sergey,

The passed charge should get reset at certain points. Please send your log file and I will check to see if it is working properly.

Tom

Tom,

All the information and the question in the previous message. Repeat 0880.28.06.2013_learn.log

Sergey

Good day!

I understand the answer will not be?

Sergey,

I reviewed your data and the Passed Charge is accumulating at a 2.5x rate higher than what it should. If you calculate the passed charge based on the current and time, then the accumulated charge matches the full charge capacity. I am not sure what could cause this unless it is a calibration problem. Are you sure that the current was calibrated properly and the negative sign was entered when calibrating? If you want to extract a .senc file and send it to me, then I will load it into a pack and analyze it further. 

Tom

Tom,

I spent a calibration using bqEVSW 0.9.86. The calibration is correct (program data and multimeter measurement match). 

ONLY I'm using a shunt 0.025Om (Passed Charge is accumulating at a 2.5x rate higher). May be in this case? 

Although CC Gain = 25mohm. I do not understand. 

http://e2e.ti.com/cfs-file.ashx/__key/communityserver-discussions-components-files/180/2543.bq34z100_5F00_ID1189.7z

another question

What is the difference between .senc files and .dfi files? 

Can you record in the manufacture  a .senc file instead  a .dfi file?

Sergey

Sergey

I have been away from the office since I received your senc file, but I will review it when I return to the office on Monday. Changing the sense resistor should not affect the passed change. You will see it change, if you scale the current to a different value. e.g. Use a 2A current for calibration, but enter -1000mA into the calibration program. The senc file contains everything in the flash memory. IF and DF. The dfi file only contains the data flash portion of the flash memory. A .rom file also contains just the data flash portion of the flash memory, but it also contains header information about the device type. We are moving way from supporting .dfi files, because a device can be corrupted if the wrong dfi file is loaded.

Regards

Tom

Tom,

If I understand correctly, I can write a senc file instead dfi(rom) file?

How to do it without bqEVSW? (which protocol, sequence of commands?)

Sergey