VBUS PÄ°N

[kadir ustun1]

Posted on March 30, 2018 at 16:31

Hello everyone. I need to help immediately. I neet to disable VBUS pin on STM32F429. How can I do ? please help me 

[Nesrine M_O]

Posted on March 30, 2018 at 16:38

Hi

_st_n.kadir

,

Unfortunately, it is difficult to follow the status of issues you are facing.

Each time a new discussion on the forum for almost the same topic (3)This is confusing...don't know where to start exactly... To be able to efficiently help you, I suggest you provide a clear status onone post!

-Nesrine-

[kadir ustun1]

Posted on March 30, 2018 at 16:47

actually I use CAN2 at STM32F429ZI. but, ı can not connect PB13 because of VBUS. I need to disable VBUS. but, I dont know how ı can 

[Tesla DeLorean]

Posted on March 30, 2018 at 17:01

>> I need to help immediately.

This isn't how forums work, for immediate help hire contractors/consultants that answer to you, and are paid

http://www.catb.org/esr/faqs/smart-questions.html

 

The use of PB13 VBUS is specific to the STM32F429I-DISCO board design.

Review the schematic, follow the traces, and try to determine if those can be cut or modified to meet your requirements.

[henry.dick]

Posted on March 30, 2018 at 17:02

'

ı can not connect PB13 because of VBUS.'

what does that mean?

'I need to disable VBUS. but, I dont know how ı can '

would reading the datasheet help?

[Tesla DeLorean]

Posted on March 30, 2018 at 17:13

The question is poorly framed. The OP is using the STM32F429I-DISCO where PB13 is wired as VBUS and connects to an LED, etc

http://www.st.com/content/ccc/resource/technical/document/user_manual/6b/25/05/23/a9/45/4d/6a/DM00093903.pdf/files/DM00093903.pdf/jcr:content/translations/en.DM00093903.pdf

 

[kadir ustun1]

Posted on March 31, 2018 at 22:39

Thank you for answered. When I look datasheet, it says you can use PB13 pin as CAN2_Tx

[kadir ustun1]

Posted on March 31, 2018 at 22:40

Thank you for answered

[Andrew Neil]

Posted on April 02, 2018 at 13:07

That is as far as the chip itself is concerned.

On the Discovery board, as

Turvey.Clive.002

has explained, the pin is used to detect the presence of VBUS.