It is the continuation of this thread.
＞When the DIS_RESET_VECT_REL bit is 1, when accessing Read to 0x00000000 - 0x00000004 of Flash, it accesses the first 8 bytes of Flash as it is.
→Is it only after SoftwareReset (SRES) that DIS_RESET_VECT_REL is set to "1"?
After Hardware Reset (POR, BOD, XRES), DIS_RESET_VECT_REL will be initialized to "0".
No. DIS_RESET_VECT_REL will be set to "0" for even SoftwareRest.