There are a number of wrong assumptions in the CortexM3 code that I am
proposing to fix.
This is one of them - there are others - I’m keeping them in separate emails so
that they can be discussed separately.
Corex_m.c - line 59 - Assumes that any address < 0x20000000 => Flash memory
and is hardware breakpoint
That is not always the case
Proposal: Create (N=4) ranges address ranges where the breakpoint type
can be defined by config file.
The default would be - 1 range, from 0..0x20000000 - of type hardware
breakpoint
I do not propose to allocate this space, command:
$_TARGET cortex_m bkptregion clear <= sets all breakpoints
to SW breakpoints
$_TARGET cortex_m bkptregion list <= presents table of
regions
$_TARGET cortex_m bkptregion set TYPE NUMBER START LENGTH
The set command sets region (x) to something as specified.
Where:
TYPE = soft | hard
NUMBER = 0..3
START = start address
LENGTH = memory length
Note:
Conflicting/overlapping regions are just too bad
The first one that matches wins
ok with that?
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