Hi,
I'm trying to make my testing board with AM3358zcza100.
Once I made a board using the below schematic, everything worked well except for my designing error regarding the ground.
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Here is the reference schematic "Beagle Bone Black":
raw.githubusercontent.com/.../BBB_SCH.pdf
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After correcting the above errors, I re-made the same board.
Then I have faced tricky issues as below:
1. It fails to boot, only shows c...c..c
2. When I put the probe on resetn(G2 pin) of AM3358, I saw it sends the signal to ddr3 as "LOW"
3. Normal board's DDR_CLK(D2 pin) was 400Mhz, but that of the new board was 264Mhz
<The above schematic depicts as xam3359, but the real implementation is am3358.>
Unfortunately, I'm a beginner in hardware design.
Can I get your advice to know how to figure out the cause of the problem?
I'll apply your suggestion as much as possible.
Thank you very much for your read.
