AnsweredAssumed Answered

Is there any calculation tool of DRAM bus length for i.MX7ULP ?

Question asked by ko-hey on Apr 27, 2020
Latest reply on Apr 27, 2020 by Yuri Muhin

Hi all,

 

I'll building a custom board with i.MX7ULP.

I understand that the wiring of each DDR signal line (the wiring from the CPU BGA pad to the DDR BGA pad) must be of equal length.

 

Is there any information about the wiring length inside the CPU (the wiring length from the DDR controller inside the CPU to the BGA PAD) ?

Or is there any calculation tool of DRAM bus length for i.MX7ULP ?

I found following check sheet but it's for i.MX6.

https://community.nxp.com/docs/DOC-93819

 

Ko-hey

Outcomes