How to redirect printf to a UART on stm32f429i-disc1

[syedhashmiraza]

how to use printf in stm32f429i-disc1?

[Andrew Neil]

You posted this as a reply to the Knowledgebase article:

https://community.st.com/t5/stm32-mcus/how-to-redirect-the-printf-function-to-a-uart-for-debug-messages/ta-p/49865

Have you actually read that article?

As noted here:

The first thing you need to do is to get basic, direct UART output working:

https://wiki.st.com/stm32mcu/wiki/Getting_started_with_UART

You need to get that done before you start thinking about redirecting printf to it!

See also:

https://community.st.com/t5/stm32-mcus-embedded-software/how-to-redirect-the-printf-function-to-a-uart-for-debug-messages/m-p/740284/highlight/true#M56711

[SofLit]

See these threads:

https://community.st.com/t5/stm32-mcus-products/problems-with-data-reception-via-usart3-on-stm32f429-disco-board/m-p/741831

https://community.st.com/t5/stm32-mcus-products/how-to-use-printf-in-stm32f429i-disc2/td-p/736508

[SofLit · Accepted solution]

+ You asked the same question in this thread: https://community.st.com/t5/stm32-mcus-embedded-software/how-to-use-printf/td-p/733254

And I provided you a project on which printf is used on stm32f429i board.

So the question is, are you reading our posts/comments?

[Andrew Neil]

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@SofLit wrote:

I provided you a project on which printf is used on stm32f429i board.

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@syedhashmiraza you even marked that as The Solution!

And that thread has already covered the importance of getting basic, direct UART output working first.