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MX7D DDR3L stress test is not displaying on the screen properly.

Question asked by Masayuki Kai on Oct 29, 2019
Latest reply on Nov 13, 2019 by igorpadykov

MX7D DDR3L stress test is not displaying on the screen properly.

 

 

We have tried DDR Stress Test by using Option 3 U-Boot.
But DDR Stress Test does not work properly like this.
=> go 0x00910000
>▒▒<<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒▒▒▒▒▒▒▒<▒<<<<▒▒▒<▒<<▒<<▒<▒<▒<▒<<<▒<▒<▒▒<▒<<▒▒▒<<▒▒<<▒<<▒▒<▒<▒▒▒▒▒▒▒▒▒<<<▒▒<▒▒<▒▒<<▒▒<<▒<<▒<▒▒▒▒▒▒▒▒▒<▒▒▒<<▒<▒▒▒▒▒▒▒▒▒▒<▒▒▒▒▒▒▒▒▒▒▒<▒<▒▒▒▒▒▒▒▒▒▒<<<▒▒▒<<▒<▒▒<▒▒<<▒<▒▒<▒▒<<<<▒▒<▒<<▒<▒<▒<<▒▒<<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<<▒<<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒▒▒▒▒▒▒▒▒<▒<▒▒<<▒<<<<▒▒<▒<▒<▒▒<<▒<<<<▒<▒▒<<<▒<<▒▒<<▒▒▒▒<<<<▒▒<▒▒<<<<▒▒<▒▒<<▒<<▒<▒▒<<▒▒<▒▒<▒<▒▒<▒<▒<▒▒▒<▒▒▒▒▒▒▒▒▒▒▒▒▒<▒<<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<<▒<<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒▒▒▒▒▒▒▒▒<▒<▒<▒▒<▒▒<▒<▒▒<▒▒<▒▒<▒<<<<▒<<▒▒<▒▒<▒<▒▒<▒▒<▒▒<▒▒<▒<<▒▒<▒<▒▒<<<<▒<<▒<▒▒▒▒▒▒<▒▒▒▒<▒▒▒<<▒▒<▒▒▒<▒▒▒▒<▒▒▒▒▒<▒<▒▒<▒▒<▒<<▒▒<▒<▒▒<<<<<▒▒<<▒<▒▒▒▒▒▒<▒▒▒▒▒▒▒▒<<▒▒<▒▒▒<▒<<▒▒▒▒▒<▒▒<▒<<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<▒<<▒<▒<<▒<<▒▒<▒<<<<<▒▒<▒▒<▒<<▒<<▒<▒▒▒<<<▒<<▒<▒▒<▒▒▒<▒<<<▒▒<▒▒<▒<▒<▒<<<▒▒<▒▒<<<<▒<▒▒<▒<▒▒▒<<<▒▒<▒▒<▒<<<▒<<<▒<▒<▒▒▒▒▒<▒<<▒<▒▒▒▒<▒<▒<<<▒<<▒▒▒▒▒▒▒<▒<<▒<▒<▒▒▒<▒<<<▒<▒<

Our system works properly on Uboot or Linux, however only DDR Stress Test does not work properly.
Our system does not also have eMMC, Our system has only SD card.

What should we check about this issue?

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