Issue in DDR calibration values

[hrushinale]

Hello Community,

We have two variants of custom board first one based on i.MX6 solo with 1GB ram and another based on i.MX6 Dualite with 2GB RAM.

When I run the DDR calibration for dualite board I got 12 updated calibration values

but when I run the calibration for Solo board with 1GB ,I am getting only 4 updated calibration values.

So my question is How can I get all the 12 calibration values for solo board?

we followed I.MX6DQSDL DDR3 Script Aid V0.10 .

Thanks & Regards,

Hrushi

[igorpadykov]

Hi Hrushi

seems this is described in sect.3.3.1 Identifying Issue on Calibrations

MX6 DRAM Port Application Guide :

There is a chance that there is an error during the calibration, it may

fail to find a valid delay window for some particular bytes.

Freescale i.MX6 DRAM Port Application Guide-DDR3 | NXP Community

Best regards

igor

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[hrushinale]

Hello Igorpadykov,

I run the test multiple times on two different solo boards but still I am getting only four values and not 12.

Kindly guide us regarding this issue.

Thanks & Regards,

Hrushi