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Associate II
August 7, 2024
Solved

Do I need to connect VSSDSI when not using the display blocks?

Hello,

I'm using a STM32F479VI but I do not need the DSI (display) functionality for my current application.

It seems that block runs on a independent power supply derived from VDD.

Can I leave the DSI power pins floating or should I power them anyway?

Screenshot 2024-08-07 at 15.28.31.png

This topic has been closed for replies.
TDK
TDKBest answer
August 7, 2024

> Do I need to connect VSSDSI when not using the display blocks?

Yes, per the datasheet:

TDK_0-1723043017661.png

 

"If you feel a post has answered your question, please click ""Accept as Solution""."

2 replies

TDK
TDKBest answer
August 7, 2024

> Do I need to connect VSSDSI when not using the display blocks?

Yes, per the datasheet:

TDK_0-1723043017661.png

 

"If you feel a post has answered your question, please click ""Accept as Solution""."
exlabsAuthor
Associate II
August 7, 2024

Thank you! I did read the datasheet.. but not well enough. That is exactly what I needed to know, including the part about the caps.