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How to use the DDR tool for i.MX8M with DDR3L

Question asked by George Fukutomi on Jan 8, 2019
Latest reply on Feb 28, 2019 by George Fukutomi

Dear Oliver Chen,

 

We use i.MX8M and DDR3L for our product.

 

The DDR3L(MT41K512M8DA-107 IT:P) is 8-bit width. That is, in order to take 32-bit width, we using 4 x DDR3L.

    - https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf

 

We performed the calibration using DDR tool and Aid Script which you posted.

   - i.MX8 MSCALE SERIES DDR Tool Release (V2.10) 

   - Aid Script which we edited is attached below.

 

 

However, it Fail in DDRPHY training.

 

 

PMU: Error: Dbyte 0 nibble 0 rxClkDly passing region is too small (width = 0)

PMU: ***** Assertion Error - terminating *****

 

What does this mean?

Please tell me how to avoid this.

 

Best Regards,

George

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