RT1170 persistent-across-reset RAM?

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

RT1170 persistent-across-reset RAM?

Jump to solution
1,336 Views
Littell
Contributor III

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

0 Kudos
Reply
1 Solution
1,196 Views
Sam_Gao
NXP Employee
NXP Employee

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

View solution in original post

0 Kudos
Reply
3 Replies
1,249 Views
Sam_Gao
NXP Employee
NXP Employee

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

0 Kudos
Reply
1,234 Views
Littell
Contributor III

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?)

0 Kudos
Reply
1,197 Views
Sam_Gao
NXP Employee
NXP Employee

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

0 Kudos
Reply
%3CLINGO-SUB%20id%3D%22lingo-sub-1896090%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3ERT1170%20persistent-across-reset%20RAM%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1896090%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3EDoes%20the%20RT1170%20have%20some%20(small)%20area%20of%20internal%20RAM%20that%20will%20retain%20its%20contents%20across%20a%20reset%3F%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1903873%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3ERe%3A%20RT1170%20persistent-across-reset%20RAM%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1903873%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3EHi%26nbsp%3B%3CA%20href%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F234959%22%20target%3D%22_blank%22%3E%40Littell%3C%2FA%3E%26nbsp%3B%3C%2FP%3E%0A%3CP%3EPlease%20refer%26nbsp%3B%3CA%20href%3D%22https%3A%2F%2Fwww.nxp.com%2Fdesign%2Ftraining%2Fi-mx-rt1170-mcus-architecture-overview%3ATIP-IMX-RT1170-MCUS-ARCHITECTURE-OVERVIEW%22%20target%3D%22_blank%22%20rel%3D%22nofollow%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fwww.nxp.com%2Fdesign%2Ftraining%2Fi-mx-rt1170-mcus-architecture-overview%3ATIP-IMX-RT1170-MCUS-ARCHITECTURE-OVERVIEW%3C%2FA%3E%26nbsp%3Bto%20know%20more%20about%20RT1170.%3C%2FP%3E%0A%3CBR%20%2F%3E%0A%3CP%3EFor%20hardware%20reset%20(E.g.%20POR%20)%20case%2C%20the%20state%20of%20each%20RAM%20will%20be%20undefined(random%2C%20not%20all%20zero).%3C%2FP%3E%0A%3CBR%20%2F%3E%0A%3CP%3EB.R%2C%20Sam%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1900944%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3ERe%3A%20RT1170%20persistent-across-reset%20RAM%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1900944%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3EYes%2C%20but%20are%20the%20internal%20RAM%20blocks%20powered%20down%20as%20the%20result%20of%20a%20hardware%20reset%3F%26nbsp%3B%20(My%20apologies%20for%20not%20being%20familiar%20enough%20with%20the%20RT1170%20-%20do%20the%20internal%20RAM%20blocks%20even%20have%20separate%20power%20enables%3F)%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1900144%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3ERe%3A%20RT1170%20persistent-across-reset%20RAM%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1900144%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3EHi%26nbsp%3B%3CA%20href%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F234959%22%20target%3D%22_blank%22%3E%40Littell%3C%2FA%3E%26nbsp%3B%3C%2FP%3E%0A%3CP%3E%3CSPAN%3ERAM%20will%20retain%20its%20contents%20across%20a%20reset%20if%20NO%20any%20power%20off%2C%20t%3C%2FSPAN%3E%3CSPAN%3Ehat's%20how%20ram%20works.%3CBR%20%2F%3E%3C%2FSPAN%3E%3C%2FP%3E%0A%3CP%3E%3CSPAN%3EIf%20power%20off%2C%20it%20will%20be%20lost.%3C%2FSPAN%3E%3C%2FP%3E%0A%3CP%3E%3CSPAN%3E%3CA%20href%3D%22https%3A%2F%2Fhackernoon.com%2Fdifferences-between-ram-rom-and-flash-memory-all-you-need-to-know-ghr341i%22%20target%3D%22_blank%22%20rel%3D%22nofollow%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fhackernoon.com%2Fdifferences-between-ram-rom-and-flash-memory-all-you-need-to-know-ghr341i%3C%2FA%3E%3C%2FSPAN%3E%3C%2FP%3E%0A%3CBR%20%2F%3E%0A%3CP%3E%3CSPAN%3EB.R%2C%3C%2FSPAN%3E%3C%2FP%3E%0A%3CP%3E%3CSPAN%3ESam%3C%2FSPAN%3E%3C%2FP%3E%3C%2FLINGO-BODY%3E