Dear All,
Hello. We found the 1st bit of the DQ amplitude was small by DDR3 stress test (Writing mode).
And, tDS/tDQ found tight specifications (DQS or DQ - CLK).
*Refer to attached file.
How to increase the DQ amplitude?
For example, if user increase the DQ Drive strength (40 Ohm --> 34Ohm), is this issue improved?
This question is related to the following thread.
https://community.freescale.com/message/558926#558926
Best Regards,
Keita
解決済! 解決策の投稿を見る。
Hello,
Yes, the DQ amplitude may be improved by increasing the drive strength.
Regards,
Yuri.
Hello,
Please refer to reply from app team in
About Signal amplitude on DQ lines in i.MX6DQ.
Have a great day,
Yuri
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Dear Yuri,
Hello. Thank you for your reply.
I think so, too.
The amplitude was improved by ODT setting.
Another way, the DQ amplitude was improved by increasing the drive strength, isn't it?
Best Regards,
Keita
Hello,
Yes, the DQ amplitude may be improved by increasing the drive strength.
Regards,
Yuri.