CpuBoard Rev 2
Spin Notes

1  LTM2882 footprint was mirrored.
   LTM2882IY_BGA is the correct footprint.

1  U39 footprint was QFN_16_3X3 in error.  
    ISL4221E
    Package is 5X5 mm.
    16_QFN_5X5 is the correct footprint.

1  Remove Q6  Q5  R135  R134
    Un-needed SuperCap circuitry

1  Add connection: U31 pin 7 to D15 - Anode ( EXT_RESET_N  to Supercap Cntlr )

1  Swap A3 pins 13 and 14 ( Rx and Tx lines into GNSS-5-CLICK )

1  Add 1uF 0603 Caps in parallel with C159 (C246), C160 (C247), C156 (C248), C155 (C249)

1  Add 47uF (C250), 100nF (0.1uF) (C251) and 10nF (0.01uF) (C252) Cap in parallel with C50

1  Add 100nF (0.1uF) (C253) and 10nF (0.01uF) (C254W) Cap in parallel with C51

0  Add 100uF Cap in parallel with C200

0  R26 is now 909k 0603 1%

0  R28 is now 274k 0603 1%

0  R21 is now 237k 0603 1%

0  Add 0.1uF 0603 cap in parallel with R24

0  Remove D15

0  Remove R39

0  Add 10k resistor between pin 1 and pin 2 on Freewave Connector

0  Cut trace to gate of Q1, bluewire TP90 to CPU GPIO connector J12, pin 13
     Was: Q1 Gate driven from CN1_9
     Now: Q1 Gate driven from CPU signal CN1_21

0  Add 22 AWG wire from U31 pin 1 to positive junction of C159 and C160
     Wide trace, actually

0  Add wide trace from pad (F3,D17,C66, TP160) to 3.3V side of C49 to reduce resistance