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Aldo1
Associate
March 7, 2024
Question

SPI communication while debuging

  • March 7, 2024
  • 15 replies
  • 4974 views

Hi,

I using STM32F407IG in IAR Embedded workbench.

When I debug the program the SPI communication does not work.

what could be the reason?

Without debug the SPI work

This topic has been closed for replies.

15 replies

Andrew Neil
Andrew Neil
Super User
March 7, 2024
@Aldo1 wrote:

the SPI communication does not work.

what could be the reason?

Without debug the SPI work

What, exactly, do you mean by that - in what way(s), exactly, does it "not work" ?

What are the SPI lines doing in the "not working" state ?

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.
Aldo1Author
Associate
March 10, 2024

Hi Andrew Neil,

I using this routine: void spi_rtx(struct s_spi *s, unsigned len, unsigned char *rx_buf, unsigned char *tx_buf) of STM.

and for some reason I did not get an answer.

Again, in normal working condition, not in Debugging mode - I'm getting an answer.

Tesla DeLorean
Tesla DeLorean
Guru
March 10, 2024

Do you mean you can't single step real-time  code and for it to run in a timely manner?

The answer might be to instrument rather than break to code.

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    Aldo1Author
    Associate
    March 11, 2024

    Hi Tesla DeLorean,

    In the code I need to get an answer for a device in SPI as a condition to continue the program.

    and when I debug the program I'm not getting an answer.

     

    Andrew Neil
    Andrew Neil
    Super User
    March 11, 2024

    Again, what is happening on the SPI lines?

    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.
    Aldo1Author
    Associate
    March 11, 2024

    I didn't check

    Andrew Neil
    Andrew Neil
    Super User
    March 11, 2024

    You need to check!

    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.
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