Changing VDD

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
akbac_4180996
Level 1
Level 1
First question asked First reply posted

Hi, How do you change the LDO voltage ? I used the device configurator but I am still reading 3.3v from the digital output pins (PSoC6-BLE-Prototyping kit).

ModusTb.png

Thanks

Akash

0 Likes
1 Solution

Hi Akash,

Yes, you may supply through the VTARG pin, need not break off the Kitprog section unless you're going to have the USB connected when powering from the external 2.8V source.

View solution in original post

5 Replies
LinglingG_46
Moderator
Moderator
Moderator
500 solutions authored 1000 replies posted 10 questions asked

The power mode  "1.1v LDO linear Regulator" only set the power for the CPU(MCU core).

It has no related with the GPIO output.

The GPIO only be powered by the port power domain.

thank you

0 Likes
akbac_4180996
Level 1
Level 1
First question asked First reply posted

Then can I supply the board with an externally regulated 2.8V through VTARG ? Do I need to snap KitProg2 off before doing so ?

Thanks

Akash

0 Likes

Hi Akash,

Yes, you may supply through the VTARG pin, need not break off the Kitprog section unless you're going to have the USB connected when powering from the external 2.8V source.

Thanks

0 Likes