VCP for STM32F3

[Erenburg.Evgeny]

Posted on February 21, 2018 at 14:09

I'm trying to implement Virtual Com Port on STM32F3. I use IAR.

I've included all files from a demo project.

However I have numerous errors while compiling the project. Struggling for hours I came to this question

Is there any compiled project with VCP for STM32F3?

Note: this post was migrated and contained many threaded conversations, some content may be missing.

[Bogdan Golab]

Posted on February 22, 2018 at 12:18

PAge 32, it seems that rev C is required to have st-link:

http://www.st.com/content/ccc/resource/technical/document/user_manual/8a/56/97/63/8d/56/41/73/DM00063382.pdf/files/DM00063382.pdf/jcr:content/translations/en.DM00063382.pdf

 

[Andrew Neil]

Posted on February 22, 2018 at 12:23

Or a Nucleo-F302RB ?

http://www.st.com/en/evaluation-tools/nucleo-f302r8.html

  

[Bogdan Golab]

Posted on February 22, 2018 at 12:24

'I have STM32F3DISCOVERY BOARD'

It seems that the board was already bought.

[Bogdan Golab]

Posted on February 22, 2018 at 12:47

I believe I followed the same approach as here when programming USB CDC:

https://translate.google.pl/translate?sl=pl&tl=en&js=y&prev=_t&hl=pl&ie=UTF-8&u=https%3A%2F%2Fforbot.pl%2Fblog%2Fkurs-stm32-f4-11-komunikacja-przez-usb-id13477&edit-text=&act=url

 

[henry.dick]

Posted on February 22, 2018 at 17:25

It is not difficult to tell if your board supports vcp. Take a look at the schematic of your board. There should be a connection between the debuggers uart and the targets uart pins.

If there is, there is a chance you board supports vcp. Otherwise, no chance and you have to move on.

Later jtag support swo and jscope ... So that's another option.

[AvaTar]

Posted on February 22, 2018 at 18:29

Just to mention it - the F3 Discovery firmware package has an USB example project, too.

I guess it's not VCP specific code, though.

I think what the OP was trying to tell us as well - his F3 discovery has no ST-Link with VCP (V2, like mine).

So option 1 drops out.

[Andrew Neil]

Posted on February 22, 2018 at 17:50

dhenry wrote:

It is not difficult to tell if your board supports vcp.

I think you need to be clear that you're talking here about VCP via the ST-Link.

It's still not clear that the OP has understood that there are two possible ways to do 'VCP'; viz,

1. via the ST-Link;
2. by implementing USB/CDC on the target microcontroller.

[Andrew Neil]

Posted on February 22, 2018 at 18:38

AvaTar wrote:

I think what the OP was trying to tell us as well - his F3 discovery has no ST-Link with VCP (V2, like mine).

So option 1 drops out.

But I think that this thread, and the previous thread, demonstrate that it would be far simpler to just get a board with the VCP-equipped ST-Link ?

See:

https://community.st.com/0D50X00009XkfBTSAZ

The cost of the time spent on this so far would have bought several dozen Nucleo and/or discovery boards - with premium delivery!!

[Bogdan Golab]

Posted on February 22, 2018 at 18:51

For hobbyist like me more fun is to develop the VCP w/o st-link.

You are (unfortunately) professionals and 'time is money' is your every day mantra:)

[Andrew Neil]

Posted on February 22, 2018 at 19:54

Bogdan Golab wrote:

fun (sic?) is to develop the VCP w/o st-link

 Well - each to his own, I suppose...