DDR stress test issue

[tony_l_cai]

Hi,All

The following picture is the operation after DDR stress tool testing:

and could you tell me some possible reasons?How to solve these problems?

[Yuri]

  The shown  messages relate to interface between internal iROM bootloader of

i.MX6 and an application, that tries to load and run (memory) tests  via i.MX6 USB

serial boot mode. There are two possible causes of the issue.

1. The board does not start in the bootstrap (serial download) mode.

2. There is no connection between a PC and the i.MX6 board.

Please check.

Have a great day,
Yuri

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