Closed charlespax closed 7 years ago
8 MHz crystal
C_stray=5
C_load=8
c = 2 × C_load - 2 × C_stray
c = 6 pF
32.768 KHz crystal
C_stray=5
C_load=9
c = 2 × C_load - 2 × C_stray
c = 8 pF
C_stray could be off a bit, so we can just stick with 8 pF on both parts.
Both the 8 MHz and 32.768 kHz crystals use 8 pF caps. Use the right value.