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DDR Stress test is not working and 2x32 LPDDR2 is getting detected as single channel LPDDR2

Question asked by srinivasaporam on Nov 10, 2015
Latest reply on Nov 12, 2015 by srinivasaporam

Hi,

We have got IMX6D board which is designed based of IMX6D reference design and only changing in memory technology. Reference design is based on DDR3 where as our board is having 2x32 LPDDR2 (Micron's MT42L128M64D2LL-25 AT:A).

 

When we arr running, DDrR stress test is not running completely. It is stucking in between. and also it is showing as single channel LPDDR2.

 

I have attached Datasheet for LPDDR2, Stress test output and script file generated for LPDDR2. Why it is giving read values as 0x1111 whereas it should give 8 values( like 0x11111111)

ABS_OFFSET=0x00000000result[00]=0x1111
ABS_OFFSET=0x04040404result[01]=0x1111
ABS_OFFSET=0x08080808result[02]=0x1111
ABS_OFFSET=0x0C0C0C0Cresult[03]=0x1111
ABS_OFFSET=0x10101010result[04]=0x1111
ABS_OFFSET=0x14141414result[05]=0x1111
ABS_OFFSET=0x18181818result[06]=0x1111
ABS_OFFSET=0x1C1C1C1Cresult[07]=0x1111
ABS_OFFSET=0x20202020result[08]=0x1111
ABS_OFFSET=0x24242424result[09]=0x1111
ABS_OFFSET=0x28282828result[0A]=0x1101
ABS_OFFSET=0x2C2C2C2Cresult[0B]=0x1101
ABS_OFFSET=0x30303030result[0C]=0x1101
ABS_OFFSET=0x34343434result[0D]=0x1100
ABS_OFFSET=0x38383838result[0E]=0x1100
ABS_OFFSET=0x3C3C3C3Cresult[0F]=0x1000
ABS_OFFSET=0x40404040result[10]=0x0000
ABS_OFFSET=0x44444444result[11]=0x0000

Original Attachment has been moved to: New-Text-Document.txt.zip

Original Attachment has been moved to: LPDDR2.inc.zip

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