topic IMX8QXP DDR STRESS TESTER unrecognized 32Gb LPPDDR4 in i.MX Processors

IMX8QXP DDR STRESS TESTER unrecognized 32Gb LPPDDR4

apeng168 — Fri, 29 May 2020 08:26:58 GMT

Whether IMX8QXP 32Gb total DRAM(8Gb per channel per chip select) stress test can be used at present on IMX8_DDR_Tester ER14?

I configure this in MX8QXP_C0_B0_LPDDR4_RPA_1.2GHz_v14 for 8192MB,But the display is ddr3 only 1024MB.

If i configure this in MX8QXP_C0_B0_LPDDR4_RPA_1.2GHz_v14 for 6144MB,it is display lpddr4 3072MB and DDR stress successfully.

Is there a newest version DDR stress tester?

Re: IMX8QXP DDR STRESS TESTER unrecognized 32Gb LPPDDR4

igorpadykov — Fri, 29 May 2020 23:24:45 GMT

Hi peng

latest tool can be found on

i.MX 8/8X Family DDR Tools Release

32Gb LPDDR4 devices can be supported by i.MX8QM/QXP, for example

K4FBE3D4HM-MGCJ, K4FBE3D4HM-GUCL.

also RPA example was sent via mail.

Best regards
igor
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Re: IMX8QXP DDR STRESS TESTER unrecognized 32Gb LPPDDR4

apeng168 — Sat, 30 May 2020 00:13:26 GMT

Thank you for your quick reply ,

The memory i use is MT53B1024M32D4NQ-62WT:C,is it OK?Same series as demo board MT53B768M32D4DT-062 AIT:B.

I have used the latest DDR STESSS testing tools and the configure documents(MX8QXP_C0_B0_LPDDR4_RPA_1.2GHz_v14).

Only this "Density per channel per chip select (Gb)1" modified from 6 to 8.

Why DDR STRESS TOOL recognized as DDR3 1024MB?

Re: IMX8QXP DDR STRESS TESTER unrecognized 32Gb LPPDDR4

xiehang — Sat, 30 May 2020 06:10:14 GMT

We face the same problem in IMX8QM, using DDR Tool ER14 to config with two 32Gb LPDDR4 devices, but only recognize 6GB in u-Boot and Kernel