23
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a couple extra GPS pinout notes
|2
|GND
|ground(separated to RF subsystem)
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|7
|Open
|internal To VCC3 via to somewhere - should be lowC1 & C3
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|-
|12
|Vcc
|VCC3- C2 bypass to GND at pin 13
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|-
|19
|PPS
|C9 bypass to GND, Via to back to trace to via to small via connected to R3, then trace to 47k to ground, then some pins on U2 - looks like a level translator - through that then to a hidden via, pops back up at TP36 which is connected to PB4 on the ST7.
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