AHD Lesson 9 activity

[M. Namvar]

Hi robert
i choose the expert PCB to route . may be it is too advanced for me.
i will do my best.
thank you

[robertferanec]

There is no really much how to guide you. Once you place the vias, they should not be moved.

Normally I do preliminary routing between memories, then I do preliminary routing from the CPU and at the point where the tracks cross, that is the place for VIA. Then I do the length matching between memories and then length matching from cpu.

It's not easy - so what you are experiencing is normal. That is why we do the activity.

[M. Namvar]

thank you for your response.
There is no room on L3, I have to move the vias, then the length of branches will change.
can you guide me?

[robertferanec]

That is exactly the point of this activity. First, do the lengthening of the branches and do the connection to CPU as the last one. That should help.

[M. Namvar]

Hi Robert

I have stopped at Lesson 9 activity.
I have reached a point that I can not length match anything. there is no space in L3.
if I move anything then I have to route L8 again. then length match again . and one or two routes completes. but there are more.

please help me
thank you