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breakpoint in backup registers

Question asked by Jack Peacock on Jun 3, 2013
Latest reply on Jun 4, 2013 by waclawek.jan
While tracking down a pointer problem I tried to use GDB to break on any access to the first location in the STM32F407 backup register area (0x40002850), using the "rwatch 0x40002850" command to GDB.  Bteween two other breakpoints I see the location change, but no data breakpoint occurs.

Is this a security feature in the STM32, no data breakpoints for backup registers?  Read protection is set to level 0, no protection.
  Jack Peacock

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