how can I read data from bq34z100 I2C_write,I2C_read ?

Hi Tom,

Till now the problem related to Gas guage not solved.

In control status RUP_DIS bit is set when update status is ox04.  Also the VOK bit is 0 , during the same condition. I tried with new fully charged battery, after discharging the battery to some level again i charged the battery,  same problem was there. for running optimization cycle only i did this. I am attaching the .gg file and log data along with this.  

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/data07.03.15.7z

Regards,

Arun Dev

Arun,

Do you have a more complete log file. This one shows a partial discharge and a partial charge, but here are some comments.

• It is common to see RUP_DIS set until the optimization cycle has completed.
• The rest period between the discharge and charge is not long enough for a Qmax update. You need to rest until the OCVTAKEN flag has set.
• It looks looks like the voltage measure issue has been fixed now.

Please follow the procedure that I published earlier in this post very closely and collect log data through the entire process. If you reach the point where Qmax updates and it fails, then stop the process and send the log file to me. If Qmax does update, then proceed with the optimization cycle and also export a gg file every 10 minutes.

Tom

Hi Tom, 

One more query related battery voltage.  I am using bq24450 battery charger, its float voltage is designed for 13.8V, Boost voltage is 14.7V, Final discharge voltage is 10.5V. The new battery which i am using is reaching 13.6V Max. after that the current is getting to zero. If this is case which data in the Gas guage shud be changed.

Practically Taper current is 140mA (Designed for 125mA). Here i am attaching the log data. How much time It is required for OCVTAKEN flag to get set.

Should i remove the charger when current is reaching 0mA. i need to desolder the components when it reaches that point. Kindly do the needful. https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/08.03.15.7z

Regards,

Arun Dev N

Arun,

It looks like you should set the Taper Current to 145 mA to make sure that it remaining long enough for a valid charge termination. I am not sure how long it will take for the OCVTAKEN flag to set. It could take a few hours, but it will timeout after 48 hours after charge and 5 hours after discharge.

Tom

Hi TOM,

Thank you so much for your valid time. Can you please go through the log data. In this also OCVTAKEN has not set after reaching full charge. At 13.6V my battery reaching the peak voltage. If this is the case how to change the values in register.

charge.txt

Regards,

Arun Dev N

Hi TOM,

The main problem  was because of the charger, i was using BQ24450 charger IC, it has temperature compensation because of that the voltage didn't reached the boost voltage. Its reference voltage changed due to temperature variation, now also i am using BQ24450.

Here i am attaching the log data which i obtained in that VOK and QEN flag got set. I need to know any temperature compensation happens during guaging  also why RUP_DIS bit sets in some situation. With the above log data how can i go ahead.

Thank you for your support, kindly do the needful.

discharge+charge.log

Regards,

Arun Dev N

Hi TOM,

After doing the above cycle which i have send to you, i did a small discharge, then i charged. The log data which i got with RUP_DIS bit set is attached along with this. why it happened ? also  i want to know during guaging any temperature compensation happens to reading?

27.03.15.log

Regards,

Arun Dev N

Hi TOM,

Thank you so much.

One important observation i have noticed is that , the gas guage is not reading the accurate state of charge(remaining capacity) of the battery on the load variation,

Example,

We are discharging fully charged battery with constant current  of  2 Amps and battery capacity reached to 20% (Voltage reached to 11.7Volts) and further we have reduced the load to 0.5Amps, in this condition voltage of the battery recovered to 12.1Volts but with this the capacity of the battery was not changed, it further starts reducing from 20% itself.

But as per the battery datasheet, the capacity of the battery is determined by cell voltage and current load condition, let say suppose if we discharge at 2A,  the cutoff voltage is 10Volts and if the discharge current is 0.5Amps , the cutoff voltage is 10.5Volts. How we can program the gas guage to estimate the state of charge (remaining capacity) based on discharge current and Cell voltage. 

  Please do the needful.

Thanking you,

Regards,

Arun Dev N

Hi TOM,

In the present cycle Load select was set to 1 only, sometimes SOC  is varying. I found that the new IC BQ34Z100-G1 has that feature. Kindly go through the below queries and reply me back.

1. Other than .gg file,  what are the datas required for golden image.

2. Procedure for golden image.

3. How to program golden image, i am using Bq evaluation software, with that is it possible to program gas guage for final production.

4. During charging SOC showing 100%, battery is not fully charged (update status 0x04).

5. How to create .DFI file  and .ROM file

6. How to make BQ multi station tester.

Regards,

Arun Dev N

Arun,

Here is a response for the bq34z100 and bq34z100-G1.

bq34z100

1. Other than .gg file,  what are the datas required for golden image.

[TEC]   The golden image is created after loading the default senc file, the ChemID and the golden gg file in that order.

2. Procedure for golden image.

[TEC]   After the files have been loaded (see #1), then export a .rom file using bqMtester.

3. How to program golden image, i am using Bq evaluation software, with that is it possible to program gas guage for final production

[TEC]   The .rom file cannot be imported using the bqEVSW. You can use bqMtester or you own custom tool. The Going to Production document provides example code to export and import .dfi files.

4. During charging SOC showing 100%, battery is not fully charged (update status 0x04).

[TEC]  This could occur if the optimization cycle has not been completed. After Qmax and Ra table have been update, SOC reporting should be accurate. This could also occur, if a reset occurs and the gauge makes a capacity estimate based on the OCV table, but it will be corrected after the pack has been fully charged.

5. How to create .DFI file  and .ROM file

[TEC]  See Items 2 and 3.

6. How to make BQ multi station tester.

[TEC]  The bqMtester hardware does not support the bq34z100, but you can use the bqMtester program to update and calibrate the gauge.

bq34z100-G1

1. Other than .gg file,  what are the datas required for golden image.

[TEC]   The golden image is created after loading the default srec file, the ChemID and the golden gg.csv file in that order.

2. Procedure for golden image.

[TEC]   After the files have been loaded (see #1), then export a .srec file using bqStudio.

3. How to program golden image, i am using Bq evaluation software, with that is it possible to program gas guage for final production

[TEC]   The golden srec can be programmed into a device using bqStudio or bqProduction. bqProduction also offers the option to just import the data flash portion of the srec to speed up the process. b

4. During charging SOC showing 100%, battery is not fully charged (update status 0x04).

[TEC]  This could occur if the optimization cycle has not been completed. After Qmax and Ra table have been update, SOC reporting should be accurate. This could also occur, if a reset occurs and the gauge makes a capacity estimate based on the OCV table, but it will be corrected after the pack has been fully charged.

5. How to create .DFI file  and .ROM file

[TEC]  These file formats are not supported by bqStudio or bqProduction. You can still use the dfi process to export and import the data flash, but you will have to use you own tools.

6. How to make BQ multi station tester.

[TEC]  The bqMtester hardware and program do not support the bq34z100-G1. You can use bqProduction to communicate with your module over the I2C bus and program and calibrate your pack.

Tom

Hi TOM,

Thank you so much, Now i got a clear idea how to use. I need some help from you,

1. I tried to download BqMtester software but it failed, can you send me the software. (mail id:  arun.dev@skanray.com).

2. Currently i am using bq34z110, i didn't got the new IC Bq34z100-G1. The default .senc file of that IC (bq34z110), i didn't have , can you provide it.

3. Should i need to buy BqMTester hardware or not. 

Kindly go through the procedure which i understood and correct me if any steps is not correct.

1. BqMTester software + EV2300 + gas guage interface is required for exporting and importing the .ROM file. 

2. After completing the 2 Charge /Discharge cycle of the battery ,export the data flash using BQ evaluation software and change the update status to 0x06  and FC set % to 100.

3. After 2 nd step write the data flash to gas guage using   BQ evaluation software.

4. Export the .ROM file of the above gas guage using BqMtester software.

5. The above exported .ROM file is Imported to all other gas guage used for production.

Kindly do the needful, I am very much thankful for the support provided by the TI.

Regards,

Arun Dev N

1. I tried to download BqMtester software but it failed, can you send me the software. (mail id:  arun.dev@skanray.com)

[TEC]  I will send you a link to download the setup file.

2. Currently i am using bq34z110, i didn't got the new IC Bq34z100-G1. The default .senc file of that IC (bq34z110), i didn't have , can you provide it.

[TEC]  I attached the default senc file.

3. Should i need to buy BqMTester hardware or not. 

[TEC]  The bqMtester hardware does not support the bq34z110. You can use the bqMtester program with your module.

Kindly go through the procedure which i understood and correct me if any steps is not correct.

1. BqMTester software + EV2300 + gas guage interface is required for exporting and importing the .ROM file

[TEC]  correct

2. After completing the 2 Charge /Discharge cycle of the battery ,export the data flash using BQ evaluation software and change the update status to 0x06  and FC set % to 100.

[TEC]  After the optimization cycle has completed, then you can export the gg file and set Update Status to 02 and both Cycle Count parameters to 00. I normally leave FC Set = -1.

3. After 2 nd step write the data flash to gas guage using   BQ evaluation software.

4. Export the .ROM file of the above gas guage using BqMtester software.

[TEC]  Import the default senc file, the ChemID and the updated golden gg file. Then export the golden .rom file.

5. The above exported .ROM file is Imported to all other gas guage used for production.

[TEC]  The golden .rom file can be imported to production packs, then calibrate the pack, send the IT Enable and the seal the pack. It is then ready to be shipped.

Kindly do the needful, I am very much thankful for the support provided by the TI.

Hi TOM,

Thank you so much, 

Can you send me the BqMtester software   and default   .senc file of bq34z110. ( mail ID : arun.dev@skanray.com) , when i tried the  link (www.ti.com/.../slvc107c.zip}  it is showing web page not available.

In bqChem the manufacture name of my battery not there, can you provide support for that. 

Regards,

Arun Dev N

Here is the default senc file.

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/6201.bq34z110_5F00_V0_5F00_04_5F00_BLD_5F00_0004.senc

Hi TOM, 

Thank you,

I am facing the below problems,  when i open the software. 

1. When i opened Bq Tester ROM Imager - Auto detect , it is showing "Communication error reading from gas guage".

2. When i opened Bq Tester ROM Imager - Bq34z110-v0.01, it is showing "unsupported target".

3. In Bq Tester station set up, it showing "lock status".

With the same connection by using Bq Evaluation software, i am able to read all contents.  Kindly do the needful.

Regards,

Arun Dev N

Arun,

Sometimes Auto-detect does not work and you have to select the device from the pull-down list. You should select the bq34z110 v0.04.

There is no password. Just press OK to proceed.

Tom

Hi Tom,

1. when i opened, Bq Tester ROM Imager, from pull down list i selected bq34z110 v0.01, it is showing unsupported target.

2. Can you send the latest ev2300 driver software, i updated my driver which you have provided in the link " (  https://e2e.ti.com/support/power_management/battery_management/f/180/t/128220" 

3. When i open multi station tester software, it is showing error: expected 1 board, found 1. after that the window is automatically closing.

Please do the needful

Regards,

Arun Dev N

The bq34z110 v0.04 device should be shown in the list, if you copied the config and target files to the bqMtester directory. the instructions were in the readme file. Here they are, in case you need them.

2235.config.zip

Hi TOM,

Thank you so much for your great support, 

Here i am attaching the Log data of one optimization cycle i did,

1.During charging battery capacity showed above 5000mAH. 

2. With this data, can you provide the Chem ID of my battery ( lead acid valve regulated battery).

3. is this cycle ok.

Discahrging 1st step.logcharging 2 nd step.logdischarging 3rd step.log

Regards, 

Arun Dev N

Arun,

The Mathcad program could not find a ChemID match. The rest periods are not long enough. Please use the attached document for guidance and log data thoughout the entire process.

Tom

6237.Chemistry selection.pdf

Hi TOM,

I have some query related to gas guage Bq34z110.

1. I didn't have HDA169 calibration board, how can i dump .ROM file to gas guage using Multi station Tester.

2. Without HDA169, During  production can i calibrate using bq evaluation software or how to calibrate with Multi station Tester.

3.  Without .ROM file , can i go ahead with the below procedures for going to production using bq evaluation software,

    a)  After completing optimization cycle save .GG file ( update status 02).

    b) Program  the gas guage with .SENC file.

    c) Import .GG file (Update status 06).

    d) Calibrate the voltage and current.

    e) Use it as the final package in product.

Kindly do the needful.

 Regards,

Arun Dev N

Hi Tom,

Thank you, by using imager .rom file is exported. To import .ROM , i used bq tester set up.exe software, while pressing save configuration and close, the window closes.

is this the correct way to import .ROM file to gas guage or any other way. 

Regards,

Arun Dev N

Hi Tom,

To import the .ROM file i have confusion,

The procedure which i understood i am writing below, correct me if i am wrong,

1. Take the .ROM file by using imager.

2. Open Multi station set up.

3. unlock, search for connected device, save and proceed, Next.

4. In Global configuration window, In update data flash  Image, put the .ROM file by Browsing.

5. Save configuration and close.

6. Open Multi station Testing, Press Start.

This much procedure is enough for importing the .ROM file. Please do the needful.

Regards,

Arun Dev N

Arun,

That procedure should work. Do you receive any errors?

Tom

Hi Tom,

Thank you, i didn't got any errors. When gas guage was not connected Muti station tester showed error.

Can you tell me through which software window (Out of the 3 BQ tester windows) ,the .ROM file will be loaded to Gas guage.

Regards,

Arun Dev N

Hi tom,

I started using New gas gauge BQ34Z100-G1, in that while calibrating voltage it is showing error

"cell voltage correction beyond allowed range". i am attachin the .gg file of it. i am using lead acid battery (12V, 6 cell).

please do the needful. 

data 29.07.15.zip

Regards,

Arun Dev

Hi,

[ss] isn't just a small bit in the "Control Status" register? So, what is the value 36720414 about?

Thanks a lot.

Vítor Pereira

Tom,

I have some queries related to bq34z110,

1) if load mode = 2, what value gas gauge will consider.

2) if load select= 1 and load mode= 2, how gauging will happen.

3) if load mode required to be changed, optimization has to repeat?

Regards, Arun

Load Mode = 2 will revert to Load Mode = 0

You will not have to rerun the optimization cycle if you change the Load Mode or Load Select.

TOM,

Thank you, i have some query related to golden image data in production line.

1) After programming the golden image, the update status shall change to 0x06 or not.

2) If update status is 0x06, the IT enable command shall be sent to gas gauge or not

3) At the final stage of golden image programming, the update status shall be set to which value and IT enable command shall be sent or not?

4) How the Q MAX value will get updated?

Kindly do the needful..

Regards,

Arun Dev

Tom,

I have some queries regarding bq34z110.

1) Can i use .gg file in production instead of .dfi /.Rom file.

2) What and all extra parameters present  in .Rom file compared to .gg file.

3) Can we use .senc file instead of .Rom in production.

4) Instead of sending IT enable command, can we directly change the update status register to 06.

5) If a short term high current consumption is there, Did Fast conv bit can help to predict the the SOC?

6) We are observing a current offset of 40mA in one field returned unit, when i reprogram  the default  .senc file and .gg file the offset has gone. For the faulty .senc file is programmed again the offset reappears.

Kindly do the needful.

Regards,

Arun Dev

Tom,

Thank you so much. 

1) .Senc file contain DF plus IF , so is it the best suitable file for final programming compared to .Rom and .DFI .

2) Is it mandatory to do Board offset calibration and CC offset calibration to all individual packs.

3) We have a .Senc file, in that an offset of 40mA is shown in current reading, i will share that file with you. 

4) Kindly help us to find why that problem has come and because of what. If we change the .gg file, there is  no impact on offset.

5) I need your help to find the chem ID. I am sharing the log data of battery charge discharge cycle.

Kindly do the needful.Gas gauge data.zip

Regards, 

Arun Dev

Tom,

Thank you so much.

1) For an actual current of 0mA , gas gauge is showing 40mA for that particular .senc file. I am again attaching the .Senc file

Related to optimization cycle i have few queries,

2) While running optimization cycle shall we enable sleep mode ?

3) If sleep mode is enabled whether gas gauge will enter relaxation mode.

4) What shall be the values of  Cell0 R_a flag & xCell0 R_a flag , we are using 0x0555 & 0xFFFF, is it right?

5) What shall be the values of Max sim Rate and Min sim Rate , our battery spec is 5AH , 12V( 6cells).

kindly do the needful.4784.Gas gauge data.zip

Tom,

Thank you,

1) Because of what  CC MAX Offset can get corrupted.

2) What preventive measure we can take in production to avoid above problem.

3) If i am not sending IT enable manually also QEN flag is getting set. Why that is happening

4) If QEN flag is set , whether that shows IT is enabled ?