Use STLİNK Port for UART Communication

[testbenchmark]

Hi everyone,

I am using STM32H747I-DISCO.

I want to use ST-LINK  V3E port for UART communication port. I am configuring USART1 and using the HAL_UART_TRANSMIT function.

After download the code I close the ST-Link connection and using a serial terminal to see the result but nothing happend.

What am I missing?

[Tesla DeLorean]

Missing a lot of detail..

Initialize the clocks, pins and peripherals. 

HAL_UART_Init() ??

Show all the code.

Should be viable in a Terminal regardless of a debug session. Not clear what issue you're describing.

[Andrew Neil]

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@testbenchmark wrote:

What am I missing?

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As @Tesla DeLorean said, a whole load of detail!

Remember that we can't see your board, or your computer, or what you're doing - we know nothing other than what you clearly describe in your post

https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228

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@testbenchmark wrote:

After download the code I close the ST-Link connection and using a serial terminal to see the result but nothing happend.

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What, exactly, do you mean by, "close the ST-Link connection" here?

What happens if you keep the ST-Link connection, and use the debugger to see what's happening?

[Sco]

I recommend you for do these steps:

Step1: with default status of the board, after the board powered successfully, using a serial terminal to see the data, and confirm "is it in good status".

Step2: do the "close the ST-Link connection" action, to see if the result is align with what you've seen in step1. if not 

=>Step3: to describe clearly what you do to for "close the ST-Link connection", hardware or software, how?

[testbenchmark · Accepted solution]

Hİ DeLorean,

You're right sorry about that.

When I create a new project I clear the pinouts.

After configuring the USART1, the CUBEMX configure the wrong pins.

I check the schematic of dev board, and change these pins.

Problem solved, sorry again...