BQ79731Q1EVM-060: Communication Support

Abhiram Tiwary

Part Number: BQ79731Q1EVM-060
Other Parts Discussed in Thread: USB2ANY

Dear TI Team,

I am testing with BQ79731 EVM for my BJB Project and I have some queries regarding that:

1. Is it possible that we can directly communicate (Without BQ79600 bridge IC) to our MCU's UART with the BQ79731's internal UART on an Isolated Power supply & Communication Line ?

2. For the Isolated Power Supply, can we use the AVDD supply on the BJB side ?

3. After using all the 4-SW GPIOs, Can we use other extra voltage sensing GPIOs to switch different more voltage measurement divider Circuits ?

Thanks & Regards

over 1 year ago

+1 Quentin Silic over 1 year ago

TI__Expert 6980 points

Hello Abhiram,

1) Yes, you can communicate directly to the BQ79731 using UART.

2) Yes, you can supply external loads using AVDD up o 20mA.

3) Yes, all other GPIOs you can use to send a voltage between 0 and 5. Typically we use the for temperature sensors like NTC and PTC, but you can use them in various ways.

Best,

Quentin

0 Abhiram Tiwary over 1 year ago in reply to Quentin Silic

Prodigy 135 points

Dear TI Team,

I want to test the functionality of BQ79731.

for that I want to know configuration steps of BQ79731 individually with the help of GUI (for that I'm using USBANY).

please provide some documents and guidance related to this.

if any another effective way to test it, share it with me.

0 Quentin Silic over 1 year ago in reply to Abhiram Tiwary

TI__Expert 6980 points

Hello Abhiram,

Please use our BQ797xx 2.0.4 GUI. There you can use the USB2ANY to interface the BQ79731 device via UART or SPI as shown below.

Use the software buttons like wakeup and auto-address to begin interfacing with the devices

Also refer to the datasheet for more details.

Best,

Quentin

0 Abhiram Tiwary over 1 year ago in reply to Quentin Silic

Prodigy 135 points

Hi,

As mentioned above, BQ79731 GUI showing that device is connected.

I am using UART with single BQ79731 with NO Stack device.

I have performed same steps but after this the device is not visible in GUI ADC Moniter TAB.

so please request to support ASAP.

0 Quentin Silic over 1 year ago in reply to Abhiram Tiwary

TI__Expert 6980 points

Hello Abhiram,

What EVM revision are you using?

Also, some versions of the GUI need a file update to work with the 731. Place the file below in the directory: C:\Users\a0xxxxx\guicomposer\runtime\gcruntime.v11\BQ797XX_2p0p4\app\custom\ti-bms-global

Retry interfacing with the device and let me know if the issue is resolved.

Best,

Quentin

ti-bms-global.html

0 Abhiram Tiwary over 1 year ago in reply to Quentin Silic

Prodigy 135 points

Dear Quentin,

We are using the below EVM for UIR testing and using the GUI that was provided by secure access.

Thanks & regards

Abhiram

0 Quentin Silic over 1 year ago in reply to Abhiram Tiwary

TI__Expert 6980 points

Hell Abhiram,

Below is the setup configuration for this model. Please compare it with your set up and make sure they match.

Also please inset the html file I provided for you in the correct directory as mentioned previously.

Best,

Quentin

0 Abhiram Tiwary over 1 year ago

Prodigy 135 points

Dear Quentin,

Can you please provide us GUI version 1.0 currently we are using "BQ797XX_2.0.4_installer_win" but I need old version of GUI i.e. "BQ797XX_1.0.X_installer_win"

Please help me to get this older version.

Thanks.

0 Abhiram Tiwary over 1 year ago in reply to Abhiram Tiwary

Prodigy 135 points

Dear Quentin,

I tried to copy "ti-bms-global.html" into given path but this also didn't work.

Can you please provide us GUI version 1.0 currently we are using "BQ797XX_2.0.4_installer_win" but I need old version of GUI i.e. "BQ797XX_1.0.X_installer_win"

Please help me to get this older version.

Thanks.

0 Quentin Silic over 1 year ago in reply to Abhiram Tiwary

TI__Expert 6980 points

Hello Abhiram,

I am going to take this offline so I can help get you this older version to you.

Look out for an email from me.

Best,

Quentin

Power management

Power management forum

BQ79731Q1EVM-060: Communication Support