If you operate PSOC4 from your own power supply, only capsense will not work.

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

cross mob
user_3997021
Level 2
Level 2
10 replies posted 5 replies posted 5 questions asked

If 5V is taken out from AC12V5A using DCDC converter and supplied to PSOC4, only capsense operation will be stopped.

We can confirm that high / low switches during loops such as pin.

It works with no problem with input from kitprog. It works even if you put 12v later.

Is there anything wrong?

0 Likes
3 Replies
BragadeeshV
Moderator
Moderator
Moderator
First question asked 1000 replies posted 750 replies posted

Hi,

Can you check if you have supplied power to VDDA as well? Also can you probe the cmod pin and check it's voltage?

Regards,

Bragadeesh

Regards,
Bragadeesh
0 Likes

hi Bragadeesh

Thank you for answering!

Normal operation(kitprog)

vdda is 4.5v

cmod is 1.2v

When not working(AC12V5A )

vdda is 4.6v

cmod is 4.1v

Certainly I could confirm the difference.

I will check it for myself,

If there is a solution, please answer.

0 Likes

Hi,

Can you please share the schematic of your interface so that we can try to find out the issue?

Regards,

Bragadeesh

Regards,
Bragadeesh
0 Likes