In my project I need to connect FPGA (1156-pin BGA) with 204-pin DDR3 memory. I am confused, because there is a small area under BGA for big amount of signals. 11 raws of BGA are used. I am using PADS Layout.
Is there any helpful technique to set the pins in DxDesigner in more logical way in order to have straight connections in Layout?
And how can I solve (count) how many internal signal layers I need at the moment for my design?
I have never designed such complicated and multi-layer system. It is difficult even to start because I do not know where should I start from.
Help me please!!!
Thank you in advance for any responce!
Veronika