BQ27411EVM-G1A: SOC and Remaining capacity Reading as 0

Hello Sandhiya, 

Can you please send me your gg file? 

Regards, 

Jonny. 

Hello Jonny,

I have attached the gg file , Kindly refer it and guide us for future actions.

BQ27411.gg.csv

Thanks.

Hello Sandhiya, 

When you try to read the data memory does BQStudio show any errors? If so could you please show me the error that BQStudio gives. Additionally, is there anything else on the comms bus? 

Regards, 

Jonny. 

Hello Jonny,

Thanks for the response ,we didn't get any error in BQStudio but we found 0 value in all(except voltage, temperature, design capacity ) parameters in data memory.

Thankyou

Hello Sandhiya, 

Can you please send me the golden image for this? I suspect this could be a FW corruption. 

Regards, 

Jonny. 

;--------------------------------------------------------
;Verify Existing Firmware Version
;--------------------------------------------------------
W: AA 00 01 00
C: AA 00 21 04
W: AA 00 02 00
C: AA 00 09 01
;--------------------------------------------------------
;Go To ROM Mode
;--------------------------------------------------------
W: AA 00 00 0F
X: 1000
;--------------------------------------------------------
;OTP Program Load
;--------------------------------------------------------
W: 16 00 21 00 00 00 5F 00 00 00 00 00 00 00 CB D4 1A 05 1C 98 02 D3 FF B9 30 EF 00 11 05 01 00 00 10 01 00 3C 00 50 3C 00 64 3C 00 20 00 00 00 00 00 00 00 00 00 00 0E DB 0E A8 00 00 00 00 05 3C 00 00 00 C8 00 32 00 14 03 E8 00 00 00 10 04 00 00 10 5E 00 00 00 00 00 00 02 BC 02 BC 01 2C 00 00 00 C8 C8 14 00
W: 16 64 F6 0F
X: 5
C: 16 66 00
W: 16 00 06 64 01 00 5F 00 3C 0E 10 00 0A 00 05 00 00 0F 00 00 00 64 46 50 00 01 90 00 64 19 DC 00 00 00 00 00 00 00 19 25 00 00 00 00 60 28 00 00 00 00 00 00 00 00 43 80 04 00 00 00 00 0B B8 01 2C 0A 01 0A 00 00 00 00 00 00 00 01 28 10 63 E5 E5 E8 E7 EA EA EC EC EE EE F0 F1 F1 EF EB EC ED F0 F6 F7 F9 F9 FB
W: 16 64 C4 1C
X: 5
C: 16 66 00
W: 16 00 06 C3 01 00 5F FC FC FF FF FE FB F6 F4 EE EB F6 FA E1 F6 DF 80 00 FF 2B 05 01 01 00 00 FF FF 00 00 FE FE FE FF 01 03 09 05 FD FE FF FF FF FF FE FD FC F5 EE F2 F4 FE 04 02 02 06 08 FE FB 9C 81 FF BA 00 00 F9 E5 28 17 D1 1F 07 08 01 09 13 E0 EA FF 00 00 00 F2 08 CE DB E6 C2 D3 E5 12 FF 2E 65 1A 00 00
W: 16 64 98 37
X: 5
C: 16 66 00
W: 16 00 06 22 02 00 5B 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 00 14 04 00 09 05 00 32 01 C2 14 14 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 00 80 00 00 00 00 00 00 0E 10 00 00 00 00 00 00 00 32
W: 16 64 98 03
X: 5
C: 16 66 00
W: 16 00 06 FE 00 00 02 01 78
W: 16 64 7F 01
X: 5
C: 16 66 00
;--------------------------------------------------------
;IMPORTANT: APPLY PROGRAMMING VOLTAGE NOW
;--------------------------------------------------------
;--------------------------------------------------------
;OTP Program Execute
;--------------------------------------------------------
W: 16 00 22
W: 16 64 22 00
X: 200
;--------------------------------------------------------
;IMPORTANT: REMOVE PROGRAMMING VOLTAGE NOW
;--------------------------------------------------------
C: 16 66 00
C: 16 04 00
W: 16 00 06 39 80 00 01 00
W: 16 64 C0 00
X: 5
C: 16 66 00
;--------------------------------------------------------
;Execute Flash Code
;--------------------------------------------------------
W: 16 00 0F
W: 16 64 0F 00
X: 4000

Thanks for the response kindly check the above details of which you have requested me to sent you, Kindly make this issue get resolved ASAP or make any  one o one session if possible to get to know more things done fast.

Hello Sandhiya, 

Please allow me to look over what you have sent. 

Regards, 

Jonny. 

Hello Jonny,

okay Jonny ,Awaiting for your response.

Thank you.

Hello Sandhiya, 

After looking at your golden image and performing some tests on my EVM, it seems that this is the expected behavior of the gauge. A majority of the default values for the gauge are 0 which is why you are seeing all of these values being reported as 0. In order for the gauge to accurately reflect the correct values, you need to configure the gauge parameters listed in the TRM according to your battery and application. Please refer to the TRM for help with what parameters to program. The main three parameters that you need to program for the gauge to update is the terminate voltage, the design capacity, and Qmax. Additionally, when you are doing this, please ensure that you have "scan" enabled so that the values in the Registers window are updated accordingly. 

Regards, 

Jonny. 

Hello Jonny,

As per your suggestion, we refer the TRM and updated the data in BQ Studio. Initially we got SOC value while BAT_DET,SOC1,SOCF in Bit Low condition. Later on suddenly SOC values drops to 0 .We tried multiple attempts to get back SoC value but we couldn't get it. As per our observation BAT_DET,SOC1,SOCF were in Bit high condition. I have attached gg file and as well as images of BQ Studio we observed.

0537.Bqstudio.gg.csv 

Kindly go through the file and help us to resolve the issue.

Thank you.