Deep Dive w/Scott: Attempting BGA PCB Layout #adafruit
23Join Scott on this early deep dive as he answers questions and attempts to layout an iMX RT 1060 feather with a ball grid array (BGA) package. Next week will be a deep dive with Tim.
Thanks to dcd for time codes.
0:00 Getting started early
1:08 welcome and introduction
2:33 sample circuit python microprocessor
3:50 Stema G0
4:51 BLE status
8:30 i.MX RT1060 BGA questions
10:27 bga layout and JLC contstraings ( jlcpcb )
12:30 calculating pricing tradeoffs 4 layer vs. 6 layer and via sizes
14:25 JLCPCB - check for chips in stock
15:25 Hope to fit on host feather
22:28 Laptop also running linux ( framework (13) laptop recomended )
25:00 sharing the github repository
25:29 IMX rt1060 benefits
26:06 consider SamacSys (a supplyframe company ) tool to generate footprints?
26:37 metro RT1010 / tightly coupled memory
27:50 Symaccess search for footprint ( componentsearchengin.com )
29:44 kicad cloned feather rp2040 to start with
30:32 nxp data + python script to generate connections
31:14 removing vias in kicad
34:00 coloring to observe ball connections
36:00 kicad footprint editor
38:52 kicad 3D Viewer of feather
42:18 reposition vertical stemma port
43:03 PMIC discussion
44:15 moving smaller part to back side of board
45:00 power considerations
46:44 Button position
48:00 DCDC circuit and boost converter (for 5V usb )
49:00 ... mute for phone ....
49:46 back
52:24 position bypass caps
55:00 open schematic off screen
1:04:30 0201 vs. 0402 tradeoffs ( 01005 )
1:06:30 grid alignment issues - fixed
1:09:00 rt1016 hardware design guide
1:10:12 look at schematic of the "evk"
1:14:42 check out the EVK board to get feel for how they layed out the board
1:17:05 "hover cam" look
1:19:07 looking at the back of the BGA
1:21:25 hyperRAM traces
1:22:28 U19 HyperFlash 8 bit wide and QSPI flash in U33
1:25:04 U20 SDRam
1:26:04 mention of show-and-tell PS ram 'hack'
1:31:20 Deep Dive "justification" :-)
1:37:40 sparkfun product 16402 micromod RT1062
1:40:26 wrap up - next week Tim/ FoamyGuy
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