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RBack.1
RBack.1
Associate III
November 3, 2021
Solved

Breakpoints on memory write with ST-LINK/V2, STM32CubeIDE, and STM32F746?

Apparently I have a bad pointer somewhere that periodically kills some bytes in my itcm functions. It'd be really easy to find it if I could break on memory write. Does this feature exist with this tool and IDE?

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TDK
TDKBest answer
November 3, 2021

Yes, you want to set up a watchpoint.

Right click in the expressions window and select Add Watchpoint (C/C++)...

Edit: 

  1. Create the expression you want to monitor in the Expression tab.
  2. Right click it and Add Watchpoint.
  3. A breakpoint will be set up when it changes you can view/delete in the Breakpoints tab.
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2 replies

TDK
TDKBest answer
November 3, 2021

Yes, you want to set up a watchpoint.

Right click in the expressions window and select Add Watchpoint (C/C++)...

Edit: 

  1. Create the expression you want to monitor in the Expression tab.
  2. Right click it and Add Watchpoint.
  3. A breakpoint will be set up when it changes you can view/delete in the Breakpoints tab.
"If you feel a post has answered your question, please click ""Accept as Solution""."
    Tesla DeLorean
    Tesla DeLorean
    Guru
    November 3, 2021

    The debug hardware has some methods, could perhaps also try the MPU configuration and make it Read-Only, then it would just fault

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