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Releases: tehKaiN/plipUltimate

Rev. 2.1

11 Dec 17:46
@tehKaiN tehKaiN
v2.1
baccdc5

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Rev. 2.1 Pre-release
Pre-release

This revision was designed as experimental to prototype things and as such
it is not designed in best way. Assemble at your own risk! If you are
faint-hearted or want all the features, just wait for rev3.

  1. There are some bugs on PCB, so power selection WILL NOT work. Don't even
    bother soldering MOSFETs. When assembling, you have to decide, if you want to
    power it from passive PoE OR micro USB.

1.A. When powering from passive PoE:

  • don't solder U5, U6, R11, R12, D3 and CON4;
  • connect U3's pad 4 with either U6 pad 1 or 6, or C18's "+" pad;
  • connect U5's pad 1 with either pad 3 or 7, or C18's "-" pad.
    For U3 and L2, turn your iron to 450 Celsius.

1.B. When powering from micro USB:

  • don't solder U3, U5, U6, C15, R11, R12, D2, D3 and L2;
  • connect U6's pad 3 with 1 or 6;
  • connect U5's pad 6 with 3 or 7.
  1. U7's biggest pad (plate) is mistakenly connected to GND. You must cut traces
    between this pad and rest of ground plane with as large margin as possible,
    or cover it in kapton and solder remaining leads. Be sure you've isolated this
    pad correctly, because after soldering your multimeter buzzer won't indicate
    connection properly. Who the hell designs IC with biggest heat flow
    not connected to GND?

BE SURE TO COMPLY TO STEPS 1 AND 2, OTHERWISE YOU WILL BURN THIS PIECE OF JUNK

Also, there are problems with CON3 and CON5 footprints. It may be necessary
to cut CON3's LED leads and mechanical pins. R9 and R10 are then not needed.
Also CON5 mechanical holes may be too small.

BOM

	Connectors
		CON1: d-sub 25 male connector
		CON2: 2x3 IDC connector - for programming only
		CON3: Ethernet socket with LEDs
		CON4: USB micro-B socket
		CON5: half-sized SD card socket
	Capacitors
		C1-C4, C6-C7, C9, C12-C14, C16  100nF 0805
		C8                              10uF  0805
		C10-C11                         18pF  0805
		C15                             100uF 50V electrolytic loESR SMD
		C17                             10nF  0805
		C18                             220uF 35V electrolytic loESR SMD
		C19                             10uF  6.3V 0805
	Resistors (all 0805)
		R1, R3-R4  10k
		R2         2.7k  1%
		R5-R8      49.9R 1%
		R9-R10     270R
		R13-R14    4.7k
	Coils, ferrites
		L1  Ferrite Bead 100mA  0805
		L2  DE1207-100          DE1207
	Diodes
		D1  Yellow SMD  0805
		D2  SS34        SMA
		D3  BZV55C10    SOD80
	Crystals, generators
		G1  CFPS 72-20M  7x5
		X1  25MHz        3x2.4
	ICs
		U1  ENC28J60    SSOP-28
		U2  ATmega 328p TQFP-32
		U3 LM2596-5.0   TO-263
		U4 74LVC125     SO-14
		U7 AMS1117 3V3  SOT-223
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