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AM2632: A certain area of the RAM cannot be accessed.

Part Number: AM2632

As shown in the figure, during the debugging process, we found that a certain RAM area was inaccessible, which led to the program entering the HwiP_user_prefetch_abort_handler_c function.Then I ran the hello_world project and found that this area was also inaccessible, but the SBL project could be accessed. What could be the reason for this?We are using the am2632 board, in the SE mode.