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AURIX™

User18757
New Contributor
Hi,

I'm looking for a way to view and extract the content of an uninitialized RAM section of an 3xx cpu.

Is the only way to rewrite the UCB with new RAMINSEL values?

And what would be the proper way to do this and what are the pittfalls?


Regards,
Marcus
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4 Replies
cwunder
Employee
I am not sure of your intent, almost all of the SRAM on these devices has ECC so reading uninitialized SRAM is not reliable as the ECC bits associated to that SRAM block are also uninitialized. You MUST have a write operation to set the ECC on the SRAM before reading it.
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User18757
New Contributor
cwunder wrote:
I am not sure of your intent, almost all of the SRAM on these devices has ECC so reading uninitialized SRAM is not reliable as the ECC bits associated to that SRAM block are also uninitialized. You MUST have a write operation to set the ECC on the SRAM before reading it.


My intent is to get the uninitialized data to conduct some statistical analysis on it. My idea was also to disable the memory integrity control for e.g. the LMU mem to read the memory without ECC error.
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User18757
New Contributor
Problem solved.
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User22447
New Contributor II

Hi,

Is it necessary to initialize the RAM memory during startup? What if I skip initialization and what is benefit it initialized? 

RAMINSEL[21:16] does it possible to initialize all the core RAM initialization simulteneously?

 

Thanks,

Sagar

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