Micron 1GB LPDDR2 RAM with iMX6q

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Micron 1GB LPDDR2 RAM with iMX6q

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jasonking
Contributor I

Hi everyone,

We are trying to use Micron 1GB RAM module with an iMX6q based system that we are working on.

The DDR calibration for the Micron 1GB LPDDR2 RAM with the Part number MT42L256M32D2LG-25 is available with the current code base. The specifications of this part is Clock rate 667MHz, Data Rate 1333 MHz and CL as 9.


However, we are trying to use another part number MT41K128M16JT-125 XIT (Micron 1GB DDR3 RAM) with the Clock rate of 800 Mhz, Data rate of 1600Mhz and CL as 11. When we run the image with the setting of the older part number with slower clock rate, we get unexplained kernel crashes.


Is there anybody who has integrated the newer Micron 1GB RAM with this partnumber successfully with iMX6?


Thanks in advance!


shawn

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igorpadykov
NXP Employee
NXP Employee

Hi jason

new part can not be used with older part settings.

One needs to obtain new settings running DDR calibration tool

https://community.freescale.com/message/331721#331721

https://community.freescale.com/docs/DOC-96412

Also other parameters, such as tRAS,tCL,tCWL MMDCx_MDCFG1

may be changed for new part.

Best regards

igor

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