BOM: Some Resistors Are Not Listed in BOM
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On the schematic, the R26 is a 6.04k resistor.
But it was not listed in the revised BOM_Board1_PCB1_2022-08-28.xlsx sheet.
The similar cases for 240ohm resistors R6, R8, and R9 for SZQ/ZQ pins of the DRAM circuit.
R6, R8, R9, and R26 are not present in BOM - does it mean not to assemble?
And what does that resistor R26 do on the EPHY_RTX pin?
I updated the BOM, I may have accidentally deleted the information of these two resistors when I was sorting it out, sorry for that
The resistor of the network PHY seems a matching resistance. In my test, it seems that the change of the resistance value will affect the network speed. It is best not to modify it.
Thank you for your quick reply.
The board assembly is almost finished.
I'll test networking speed when I get the board a couple of days later.
And if I encounter a problem with networking speed, I'll add more comments below.
Note that the network interface requires an external 100M network Magnetic Modules
Yes, I used PoE RJ45 jack with integrated 1:1 transformer.