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stlink VCP UART not working on stm32h7575 EVAL board

DEska.1
Associate II

‎2024-04-09 12:07 PM

Hi,

I am working with the stm32h757 EVAL board, and I am trying to send some data to the PC using USART via STLINK VCP however I am not receiving anything on the PC side.
In the board user manual and schematics, it says that USART1 is connected to the ST-LINK V3 controller using pins PB14 and PB15 I have configured the USART1 and used pin PB14 which is the TX PIN and I have checked the pin on the oscilloscope and I can see the data being sent also I have checked the data on the jumper that connects to the STlink and it is sent. Yet I am not receiving anything on the PC.
Is there something wrong with the board?  is there some sort of configuration that needs to be done for the STlink to send data on VCP?

DEska1_0-1712679035543.jpeg

DEska1_2-1712679165428.png

 

DEska1_1-1712679048375.png

 

 

 

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CYANG.1
ST Employee

‎2024-11-04 12:06 AM

Hi 

It is confirmed that PB14 and PB15 are used for RS232 on STM32h757I-EVAL.

Pls note that pin2-3 is closed for both JP7 and JP8. otherwise these two pins are not connected to STLINK.

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