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Oussama_Baklouti
Associate II
September 3, 2024
Question

Receiving UART Data disordered

  • September 3, 2024
  • 3 replies
  • 1346 views

i'm using touchgfx h750DK to send a frame to an f446re st board then receive data from the board to the touchgfx 
the data sent are good but the data received are disordered although i have the same configuration in both sides  

3 replies

Andrew Neil
Andrew Neil
Super User
September 3, 2024

What, exactly, do you mean by, "disordered" ?

How do you verify that, "the data sent are good" ?

There's no way that UART frames can change their order on the wire, so it must be in your software.

 

Do your UART comms work well without TouchGFX ?

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.
O
Oussama_BakloutiAuthor
Associate II
September 3, 2024

the data i received are not int the same order of sending 

 

TDK
TDK
Super User
September 3, 2024

You have a bug in your software. You should debug your code to find the source of the error and correct it.

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    Tesla DeLorean
    Tesla DeLorean
    Guru
    September 3, 2024

    You'd need to make an effort to synchronize a byte stream. And identify the first byte in a sequence or packet.

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    mƎALLEm
    mƎALLEm
    Technical Moderator
    September 3, 2024

    Related thread: https://community.st.com/t5/stm32-mcus-touchgfx-and-gui/problem-while-sending-a-lin-frame-from-touchgfx/td-p/711283

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