BQ27411 G1A together with EV2300 and BQSTUDIO 1.3.52

Hi Alex,

I will try this on my bench this afternoon and get back to you shortly.

Best Regards,
Ben Lough

Alex,

Could you provide some detail on how you created your golden file? If the file was created using older software such as bqeasy, bqstudio will not be able to directly import it. If possible I would suggest generating a new golden file using bqstudio and using the "export" button on the data memory tab. This will give you a golden file with the correct file extension.

Best Regards,
Ben Lough

Hi Benjamin, thank you for your response!. That is the thing, im trying to create the golden image with BQSTUDIO (QLAB was a typo, sorry) , im sorry if my message from yesterday was a bit confusing, ill take it from the start:

1.  My EV2300 is connected to the BQ27411 with I^2C and the EV2300 is connected via USB to my Windows 10 where im running BQLAB.

2. When i open up BQSTUDIO i select Gauge > 0421_1_08_80-bq27411G1A > Finish : Then i get this message:

3. i assume the above error is the reason why i can't get it to work but when i try to continue and click "ok", so i get in and it looks like this:

So it recognizes the gauge chip and reads the right battery voltage, but the when i try to do the "Learning Cycle" thing it ends up with an error that says:  [qmax_up: not set]

So what i need help with is getting the chip recognized in BQSTUDIO I guess? I tried by going into Data Memory and then Importing the "bq27411-G1A_v109.gg" file that i found on your webpage but it is the wrong filetype since BQstudio asks for *.gg.csv. I tried changing the name and changing "." into "," but it gives me this error:

Thank you for your help! /Alex

Alex,

1. You are getting the popup message because you are manually selecting the gauge device to use. It's not necessarily an error message but a warning to proceed with caution. Based on your second screen capture it looks like the bqstudio is recognizing the chip.

2. Could you provide some detail on how you are performing your learning cycle? How do you have your charger/load connected?

3. The format of the golden file you are trying to use is not compatible with bqstudio. If this golden file is not specific to your application, I would recommend creating your own golden file instead: www.ti.com/.../sluubc9.pdf.

Hi again Benjamin, thank you for your help and patience.

1. OK.

2. I am now trying to do the Manual Mode Learning cycle. The circuit is as seen below, when discharging i connect VCC_BAT to GND with a 160 Ohm resistor, for the charging we are using a MCP73831T charging circuit not connected to the fuel gauge, both the discharging and charging seems to work:

3. Ok, but a GG file will be generated from doing the learning cycle right?

4. I tried again and got this:

Alex,

1. The learning cycle will give you the data needed to create a golden file. Once the learning cycle is complete, upload your data using this tool: http://www.ti.com/tool/GPCRA0. Here are instructions for the expected .zip format: www.ti.com/.../sluubc9.pdf.

2. I would suggest performing the charge/discharge cycles manually (not the learning cycle tab). The second link I provided includes instructions for the charge/discharge profile.

Best Regards,
Ben Lough

Hi Ben,
Thank you for your answer.

I believe I already did the manual charge and discharge of the battery.

Is it possible to set up a skype call with you - I have been working worth this system for 2 weeks now, and still not able to get any results.
When we decided to use this IC instead of competing solutions because it was recommended to us by Torben Bredkjær who is a sales representative from Avnet Silica in Denmark. So far the setup of the device has become quite cumbersome.

My skype id is: ai@sarita.dk

I am sure that with a quick talk with you we can sort this problem out.

Best regards
Alex

Alex,

I messaged you privately. I'll set up a conference call.

-Ben