UCPD DRP DCDC power management through I2C

[NMartin]

Hello,

I am implementing a DRP device that is to be connected to a battery.

I have this DRP example setup with the X-NUCLEO-DRP1M1 and a NUCLEO-G071RB. It is working with a 5V profile and a fixed 5V supply.

I have added a 9V source PDO in CubeMX, and can see it when I interface with the hardware through the CC lines, and now need to communicate to a DCDC to up the voltage from 5 to 9V.

I am wondering where in the code base to interface with a digitally controlled I2C DC/DC converter.

AN5225:

Any help would be appreciated,

Nate

[Nicolas P.]

hello @NMartin,

ST is proposing some shield with integrated DCDC for power delivery.

Have you seen this evaluation board ?

From there, you can download the code for the I2C control of the STPD01 programmable buck converter.

Does it help ?

regards,

Nicolas