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
已解决! 转到解答。
Hello,
Please refer to reply from app team in
About Signal amplitude on DQ lines in i.MX6DQ.
Have a great day,
Yuri
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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