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Hard fault exception: To fill up unused RAM

Question asked by Sandip Ardalkar on Sep 19, 2019
Latest reply on Nov 21, 2019 by E.w. Hu

We are filling up RAM with predefined value (0xDF) after RAM initialization in startup.  But as we enable the SVC interrupt for illegal opcode, it gives hard fault interrupt and even if we do not fill up RAM with 0xDF, it gives exception.

Is there any way/sequence to initialize RAM for illegal opcode?  How do we debug this issue?