anchor.diff:  B6,PB6
   B7,PB7
   C4,PC4
  -C5,PC5
  +PIN_BOOTSET,PC5
   X13,Reset
   X14,GND
   X15,3.3V
  
positive.code: C13,PC13
  C0,PC0
  C1,PC1
  C2,PC2
  C3,PC3
  X23,A3.3V
  X24,AGND
  
negative.code: C7,PC7
  B8,PB8
  B9,PB9
  MUX_A1,PB12
  MUX_A0,PB13
  MUX_EN,PB14
  CS_DAC,PB15
  B10,PB10
  B11,PB11
  PIN_RESET,PB0
  PIN_OFF,PB1
  Y13,Reset
  Y14,GND
  Y15,3.3V
  Y16,VIN
  LED_B,PB4
  LED_R,PA13
  LED_G,PA14
  LED_Y,PA15
  SW,PA0
  CS_ADC,PA8
  B5,PB5