RT1170 persistent-across-reset RAM?

[Littell]

Does the RT1170 have some (small) area of internal RAM that will retain its contents across a reset?

[Sam_Gao]

Hi @Littell 

RAM will retain its contents across a reset if NO any power off, that's how ram works.

If power off, it will be lost.

https://hackernoon.com/differences-between-ram-rom-and-flash-memory-all-you-need-to-know-ghr341i

B.R,

Sam

[Littell]

Yes, but are the internal RAM blocks powered down as the result of a hardware reset?  (My apologies for not being familiar enough with the RT1170 - do the internal RAM blocks even have separate power enables?)

[Sam_Gao · Accepted solution]

Hi @Littell 

Please refer https://www.nxp.com/design/training/i-mx-rt1170-mcus-architecture-overview:TIP-IMX-RT1170-MCUS-ARCHI... to know more about RT1170.

For hardware reset (E.g. POR ) case, the state of each RAM will be undefined(random, not all zero).

B.R, Sam