topic Re: IMX8MM 16 bit DDR4 training scripts in i.MX Processors

IMX8MM 16 bit DDR4 training scripts

andrewbushuev — Fri, 06 Dec 2019 22:02:24 GMT

Hello!

We build a custom board, where the PCIe and VPU IP cores are unconnected and unpowered.

The SAI1 is powered but all the IOs are unconnected.

The DDR memory is routed with the 16-bit data bus only.

Apparently, we found that the actual DDR training software provides no scripts for the 16-bit DDR4 memory.

The existing scripts/firmware hangs immediately after upload.

Any chance it is an easy-to-solve issue?

Regards,

Andrey.

Re: IMX8MM 16 bit DDR4 training scripts

andrewbushuev — Fri, 06 Dec 2019 23:10:25 GMT

Some additional info: the IMX8M NANO works well on the same PCB, including the DDR training and so forth.

Re: IMX8MM 16 bit DDR4 training scripts

igorpadykov — Sat, 07 Dec 2019 08:14:46 GMT

Hi Andrew

one can look and try RPA (Register Programming Aid) tool and documentation

(Chapter 4 How to bring up a new MX8MSCALE board MSCALE_DDR_Tool_User_Guide.pdf)
included in DDR Test package

MX8M_Mini_LPDDR4_RPA_v15.xlsx

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

Supported memories (post from Graeme Price Jun 28, 2019 7:04 AM) on

iMX8M-Mini 4GB LPDDR4 RAM

Best regards
igor
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