Failed to burn bin file, could not find core in coresight setup, erase error

Problem-solving method

Question

Flash is locked and cannot be erased when burning bin. What should I do?

Solution:

Use the j-flash tool to select the corresponding kernel model (I use cortex-m33) for erase chip operation. Note that when erasing, the erasing start address is set to 0x8030000. If the default address is 0x8000000, the PBL and SBL will be erased together, and the PBL and SBL need to be burned again.