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Two NUCLEO-H755ZI-Q boards acting differently

SoCalJim
Associate III

I have two NUCLEO-H755ZI-Q boards and I’m trying to run the SPI_FullDuplex_ComIT example on both.

One board breaks here (whether the software is built for master or slave):

snap03740.jpg

The other board has no problem (whether the software is built for master or slave).

Any ideas?

13 REPLIES 13

That's strange. previously your log showed CM4 is disabled. Are you sure you are connecting the board behaving abnormally?

Comment out that while loop:

  /* Wait until CPU2 boots and enters in stop mode or timeout*/
  timeout = 0xFFFF;
  while((__HAL_RCC_GET_FLAG(RCC_FLAG_D2CKRDY) != RESET) && (timeout-- > 0));
  if ( timeout < 0 )
  {
    Error_Handler();
  }

 

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It was originally enabled. I disabled it to see if that made a difference.

I left the while loop and commented out the error handler so it falls through:

snap03746.jpg

It now works! Thanks for your help!


@SoCalJim wrote:

I left the while loop and commented out the error handler so it falls through:

snap03746.jpg

It now works! Thanks for your help!


It's the same as if you commented out the loop as I mentionned previously but the origin of the bahavior still not understandable.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
PS:
1 - This is NOT an online support (https://ols.st.com) but a collaborative space.
2 - Please be polite in your reply. Otherwise, it will be reported as inappropriate and you will be permanently blacklisted from my help.