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I am using NUCLEO-H755ZI-Q board, Which has two cores cortex m4 and cortex m7, To enable the lwip I have to enable CPU ICache and CPU DCache

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But during runtime the program exits through SCB_EnableDCache(); function. Kindly help me if had missed something.

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James Z
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adharsh ramanathan
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2 Answers2

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I was able to resolve this issue. this was more specific to cube ide 1.7 when i rolled back to 1.6 it was working fine. Issue is with the code generation from cube mx

adharsh ramanathan
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Reference from CMSIS-Core, the description for __STATIC_FORCEINLINE void SCB_EnableDCache(void)

Before enabling the data cache, you must invalidate the entire data cache SCB_InvalidateDCache(), because external memory might have changed from when the cache was disabled. After reset, you must invalidate SCB_InvalidateDCache() each cache before enabling it.

So I think you can try to SCB_InvalidateDCache() before SCB_EnableDCache().

On the other hand, can you provide the error message or the state of the error?

I think that helps figure out the root cause.

jackieBB
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