details about Bq34z100-g1

Serge,
The bq34z100 or bq34z110 can be upgraded to the bq34z100-G1 firmware with bqStudio. Here is one of my posts covering the process.

e2e.ti.com/.../427569


Tom

Tom,

Which is the communication interface used to upgrade firmware I2C or HDQ link ?

for me, firmware is the embedded soft put into the xemic's CPU Core

Serge,

Tom,

I'm working now with bq34z1xxEVM board

Gauge's has been updated with bq34z100-g1 firmware

I can read register, unsealed or send other command with bqStudio

Now my problem is how to define my battery's parameter. I have found how to set design capicity but not voltage capacity.

Another thing, When I'm trying to make a calibration, software return an error if voltage value is upper 7800 mV

for information, my battery type is NiMH, design voltage is 12000mV an design capacity 9000mAh.

Any Idea ? Thank for you help

Regards,

Serge

Tom,

I think there is an error in SLUU904A-April 2012-Revised February 2015 (user guide) at page 7. I've found the same line "For packs where the stack voltage is less than 5V".
Could you confirm that the second paragraph is for upper than 5V
thanks,
Serge

Serge,

You are correct, there is a typo and this is how it should read.

3.2.1 Cell Configuration
The bq34z100 operates in one of two modes for measuring battery voltage. Place two jumpers on header
J5 to select the mode of operation. Refer to the Section 2.3.

For packs where the stack voltage is less than 5 V:
• Set the Number of Series Cells parameter field to the appropriate value
• Reset the gauge using the RESET button on the Commands panel
• Calibrate the stack voltage. Reference the Calibration Screen section

For packs where the stack voltage is greater than 5 V:
• Set the Number of Series Cells parameter field to the appropriate value
• Set the VOLTSEL bit in the Pack Cfg A register
• Reset the gauge using the RESET button on the Commands panel
• Calibrate the stack voltage. Reference the Calibration Screen section

Thanks

Tom

Serge,
All of the parameters in the gauge are cell based, so you will enter the NiMH cell voltage and the Number of Series Cells. The gauge will multiply these internally. You will enter the stack voltage when calibrating the pack. You should be able to enter 12000mV in calibration field. Is IT Enabled? I have found this to limit some updates.
Tom

Hi,

After calibration, I'm beginning to setting parameters for my batteries. When I'm reading bq34z100-G1 documentation (SLUSBZ5 - JANUARY 2015), I see that some gauge internals registers not documented (for example pb EFF Efficiency, Cell Taper Voltage, NiMH Delta Temp, ...etc.

Is there another documentation as user software manual which contains more informations and that can help to me to set internal register for NiMH and Lead Acid chemistry device.

Thanks

Serge

Serge,
You are using NiMH, so you do not have to worry about the PbA parameters. The battery datasheet can help with setting the NiMH configuration parameters. If you cannot find a value to update the parameter, then you can leave it at the default value.
Tom