J1850_initialization.INO

// J1850 PWM/VPW pin initialization for Macchina M2
// This is just a code snippet showing how to use the J1850 PWM/VPW pins.

#include "SamNonDuePin.h"

// VPW/PWM pins:

const int LPC = PIN_EMAC_ERX0;      // LOW POWER CONTROL pin
const int PWM_nVPW = PIN_EMAC_EMDC; // PWM/VPW level control, PB8

const int J1850_plus_TX = 45;  // PC18 
const int J1850_neg_TX = 7;    // PC23
const int J1850_VPW_RX = 4;    // PC26
const int J1850_PWM_RX = 3;    // PC28

void setup()
{
  pinModeNonDue(LPC, OUTPUT);
  pinModeNonDue(PWM_nVPW, OUTPUT);

  digitalWriteNonDue(LPC, HIGH);   // LOW  = no power at +12V_SW/+5V_SW, HIGH = power at +12V_SW/+5V_SW
  digitalWriteNonDue(PWM_nVPW, HIGH);   // VPW/PWM Select: LOW  = 7.87v (VPW), HIGH = 5.88V (PWM)

  pinMode(J1850_plus_TX, OUTPUT);
  pinMode(J1850_neg_TX, OUTPUT);
  pinMode(J1850_VPW_RX, INPUT);
  pinMode(J1850_PWM_RX, INPUT);
}

void loop()
{
}