BQ25792: Configure ADC in continuous conversion mode

Art Mecina

Part Number: BQ25792

Hello Guys,

Good day.

Our customer wanted to know if its possible to configure the built-in ADC of the device in continuous conversion mode?
also, are there any drivers associated with the device?
Thanks and regards,

Art

over 4 years ago

0 Jeff F over 4 years ago

TI__Guru**** 166176 points

Hi Art,

Yes, REG0x2Eb6 configures the ADC as continuous or one-shot. The driver that is in development is at https://git.ti.com/gitweb?p=ti-analog-linux-kernel/dmurphy-analog.git;a=commit;h=75997c21e9dfc0d54b7f774bfb37e6af796ff293.

Regards,

Jeff

0 Art Mecina over 4 years ago in reply to Jeff F

TI__Genius 16655 points

Hi Jeff,

Good day.

According to the customer, he is using REG0x2E --> B6 configures and he see this unit. He continued to have problems reading the ADC record. Below are his response in verbatim.

"I put the source in VAC1 of 12Volts DC. It reads between 9000 mV and 15000 mV. I'm using the scope of the analyzer. Its signal is ok and without noise at 12Volts.
For example:
03:01:55; VSys: 0; IBus: 12033; VBus: 33326 IBat: 0; VBat: 0; VAC1: 27182; VAC2: 0;

Vbus and IBus don´t read right.
Also to IBat and VBat.

Vsys always is Zero volts, but it is 8,4V."

What do you think could be the problem?

Thanks and regards,

Art

0 Jeff F over 4 years ago in reply to Art Mecina

TI__Guru**** 166176 points

Hi Art,

EN_ADC resets if WD timer expires. Please either write to WD timer bit or disable WD timer.

Regards,

Jeff

Power management

Power management forum

BQ25792: Configure ADC in continuous conversion mode