BQ27000: where can i download the software driver to read the memory register info for BQ27000

jason li

Part Number: BQ27000
Other Parts Discussed in Thread: BQ40Z50-R2, BQ40Z50, EV2400, BQEVSW, BQ27200

hello, tech support at TI:

where can i download the software to retrieve the power management parameters in the memory register ( BQ27000)?

i am seeking your recommendation on a vital signal to track the performance degradation for the rechargeable battery since we are using bq40z50-R2 as fuel gauge, here is a list of parameters i would like to track:

1) impedance tracking and

2) SOH measurements. (pack level)

3) QMAX parameter. (which is the max capacity in mAH) on a per-cell basis.

4) charge cycle count

the goal of the task to come up with a remaining useful life estimate model for predictive maintenance schedule based on the health monitor log file database.

i am seeking your recommendation to confirm if i capture all the critical parameters or some parameters in my list is not critical or if i miss any critical parameters to be captured in the fuel gauge?

Thanks

jason

over 2 years ago

0 Shirish over 2 years ago

TI__Guru 57697 points

Hello Jason,

Drivers for bq27000 are part of the Linux kernel.

The bq40z50 can give you all the information in your list

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

RMA203710 (U80314) Report.pdf

shirish, would you confirm the necessary of hardware and software i shall have in order to retrieve the parameters in the TI controller similar to the enclosed report ?

+1 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

Hello Jason,

The software for bq27000 was shipped on CDs and is not available online. If you get the software, you will need an EV2300 (not sold anymore). You can also use a MKST-3P-ALT-EV2300 in place of EV2300 by obtaining a software update from MKST.

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

shirish:

i was told to get EV2400 instead of EV2300. please confirm

You need to have EV2400 adaptor and bqSW from TI. Here is the link for these two items: EV2400 Interface adapter | TI.com; BQ27000: bqEVSW for bq27000 - Power management forum - Power management - TI E2E support forums

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

Hello Jason,

The EV2400 may not work with old bqEVSW. I have not tried it personally so cannot confirm.

If someone told you it works, then I would confirm from that source.

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

my battery vendor who generated a failure report for capturing the memory register in the past share with me the setup they utilized. see the enclosed fa report. here is their recommendation:

How to extract the register parameter from the BQ27000, would you share with us a tool or software driver ?

5238.RMA203710 (U80314) Report.pdf

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

Hello Jason,

In that case i would recommend that you replicate the battery vendor setup

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

shirish:

we will pursuit the EV2400 interface adaptor, however, i would need your instruction for the software download link ?

thanks

0 jason li over 2 years ago in reply to jason li

Prodigy 185 points

Shirish: how many hours/days the controller register can keep the current parameter before it is reset to zero without a power?

thanks

jason

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

Hello Jason,

The software was made available on CDs. I do not have a copy. Do not disconnect the battery from bq27000 if you want to retrieve the RAM parameters.

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

hello, shirish:

do you mean when i receive EV2400 interface adaptor, i would expect to receive a CD along with the hardware tool?

thanks

jason

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

Hello Jason,

No. The EV2400 does not come with any CD or software. The original bq27000 EVM came with the CD. You will need to get the software from the vendor since they have it installed.

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

shirish: would you confirm the connection setup to access fuel gauge register in ROM for TI chip BQ27200?

Connect Port2.1 to battery P-
Connect Port2.2 to battery clock
Connect Port2.3 to battery data
Connect 3k resistor between Port2.2 and Port2.4 or Port3.4, which ever has 5V output.
Connect 3k resistor between Port2.3 and Port2.4 or Port3.4, which ever has 5V output.

To confirm if Port2.4 or Port3.4 has 5V output, please connect EV2400 to PC with the USB cable. Then measure them to VSS.

why TI do not have the setup instruction for retrieving the ROM via I2C communication? would you share the UI tool ?

thanks

jason

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

Hello Jason,

TI used to provide the EV2300 and software. The EV2300 is no longer manufactured and the software/EV2300 may not be compatible with newer operating systems. The EV2400 has not been tested with the older software.

The document for connection is here https://www.ti.com/lit/ug/sluu157b/sluu157b.pdf Refer page 8 and 9.

Choose the HDQ port SDA pin on EV2400 for HDQ/SDA.

The Ev2400 may have internal pullups for HDQ, so you may not need pullups or need to augment with a pullup in parallel.

As indicated earlier, it is best to get all information from the vendor who told you that this particular setup works. There is no clock wire for bq27000, so not sure why your battery has a clock wire.

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

shirish:

the TI controller model we used is BQ27200, would you confirm if EV2400 and the configuration setup is described correctly?

thanks

jason

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

Hello Jason,

The I2C connections are correct for bq27200. I would not put a pullup of less than 5KOhmn due to higher sink current capability requirements.

0 jason li over 2 years ago in reply to Shirish

Prodigy 185 points

shirish:

i managed to read the register data from BQ27200 with the use of EV2300 on a window XP. my new issues is how to save and read the log file for the data in register and EEPROM.

0 Wyatt Keller over 2 years ago in reply to jason li

TI__Guru** 105760 points

Hello Jason,

Please outline the steps you performed with screenshots, it looks like the logs are empty and do not contain any data.

Sincerely,

Wyatt Keller

0 jason li over 2 years ago in reply to Wyatt Keller

Prodigy 185 points

wyatt: may i setup an appointment with you for a real time support ?

thanks

jason

0 Wyatt Keller over 2 years ago in reply to jason li

TI__Guru** 105760 points

Hello Jason,

I have sent you a private message.

Sincerely,

Wyatt Keller

0 jason li over 2 years ago in reply to Wyatt Keller

Prodigy 185 points

hello, Wyatt:

i have a few questions on the execution of EV2700 tool:

1) how can i execute the repetitive scan on EV2700?

2) how to define the scan intervals?

3) how to save the log file?

4) am i expecting the TI chip (BQ27200) cut-off the charging when the charge voltage reaching 8.4V for a two serious connected battery cell?

5) am i expecting the TI chip cut-off the discharge when the charge voltage reaching 6V for the battery pack which is serious connected on the two battery cells ?

thanks

jason

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

1. Repetitive scan is on by default. The register being scanned will be highlighted

Older bqEVSW did not have capabilities to set scan interval or save log files. If available, those will be in the menu

Since there is no FET ins the circuit there is no cut-off possible

0 jason li over 2 years ago in reply to Wyatt Keller

Prodigy 185 points

wyatt, how to save the log file in EV2300 tool ?

thanks

jason

0 Shirish over 2 years ago in reply to jason li

TI__Guru 57697 points

I don't think the EVSW has the capability to save log files