For a i.MX6S custom board which refer to IMX6 SDB board, customer claimed they can download the image but the board can not boot up first time. Then they download the image again, and then the board can boot normally. So strange for me. Could you give me some advice for this phenomenon?
They download the image into the eMMC on their board, so I want to check the data in the eMMC after they download the image first time. But I don't know how to do it, pls give me some advice.
Thank you& Best regards!
Hi 王 剑翰
such behaviour may be caused by inaccurate DDR settings,
please update calibration parameters using tool below
https://community.freescale.com/docs/DOC-96412
also check power-up sequence and capacitor values on power supplies lines
using UG document
HW Design Checking List for i.MX6DQSDL
Best regards
igor
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