Problems with data reception via USART3 on STM32F429-Disco board

Emanuele78 · ‎2024-11-12

Original post: https://community.st.com/t5/stm32cubemx-mcus/problems-with-data-reception-via-usart2-on-stm32f429zi/td-p/741765

Even setting USART3 it doesn't work (see attachments). Did I make a mistake setting some parameters, or is something missing? Thanks a lot

Andrew Neil · ‎2024-11-12

@mƎALLEm wrote:
From the user manual of the board

@mƎALLEm This is another case where the Hardware block diagram (Fig 2) in the UM could be more helpful:

https://community.st.com/t5/stm32-mcus-boards-and-hardware/nucleo-user-manuals-don-t-show-the-vcp-uart-connection/td-p/644955

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

mƎALLEm · ‎2024-11-12

Already mentioned in the User manual of the board:

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waclawek.jan · ‎2024-11-12

Is this a new board?

Because older revisions (B01) of it did not have the VCP capability.

Revision should be displayed on a sticker on the bottom of the board.

JW

Andrew Neil · ‎2024-11-12

Yes, but it would be more helpful if it were also shown in the block diagram.

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Andrew Neil · ‎2024-11-20

@waclawek.jan wrote:
older revisions (B01) of it did not have the VCP capability.

I guess that's why it's not shown on the block diagram - it was just copied without being updated?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.