---
** [tickets:#237] Regression cannot add breakpoint on STM32F7 with code from
ITCM**
**Status:** new
**Milestone:** 0.9.0
**Created:** Sat May 11, 2019 03:22 PM UTC by benjarobin
**Last Updated:** Sat May 11, 2019 03:22 PM UTC
**Owner:** nobody
Hello,
After an update of openOCD debugging was no longer working with an STM32F7 with
code running from ITCM interface.
The code is still in the internal flash of the STM32, but access from the ITCM
bus (0x02000000) instead of the AXI bus (0x80000000)
I bisect the problem to the following commit :
*
https://sourceforge.net/p/openocd/code/ci/81d0b769a65bf15dda2fd51cd4aee50bb0dc16fb/
*
https://github.com/gnu-mcu-eclipse/openocd/commit/e3e31fc15f4c5f9b8718c280fa60d02edc7e4c53
Prior to this commit, the breakpoint was forced to be an BKPT_HARD since the
address 0x02000000 is smaller than 0x20000000:
`BKPT_TYPE_BY_ADDR(addr) ((addr) < 0x20000000 ? BKPT_HARD : BKPT_SOFT)`
By default eclipse use Regular breakpoint, and it looks like it is hardcoded:
*
https://github.com/eclipse-cdt/cdt/blob/HEAD/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/breakpoints/ToggleBreakpointAdapter.java
If I manually configure the breakpoint to be an hardware breakpoint, I can run
to the configured hardware breakpoint, but stepping cannot be realized since it
use internally a regular breakpoint.
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