Setup Quadrature Encoder Inputs

dsPIC33EP256MU806 example:

	//-------------------------------------------
	//----- SETUP QUADRATURE ENCODER INPUTS -----
	//-------------------------------------------

	//----- SETUP QEI 1 -----
	QEI1CONbits.QEIEN = 0;		//Module counters are disabled
	QEI1CONbits.CCM = 0;		//Quadrature Encoder mode
	QEI1CONbits.PIMOD = 0;		//Index input event does not affect position counter
	QEI1CONbits.IMV = 0;		//Index input event does not affect position counter
	QEI1CONbits.INTDIV = 0;
	QEI1CONbits.CNTPOL = 0;
	QEI1CONbits.GATEN = 0;

	QEI1IOCbits.QCAPEN = 0;
	QEI1IOCbits.FLTREN = 1;		//Input Pin Digital filter is enabled
	QEI1IOCbits.QFDIV = 0;		//Digital Input Filter Clock Divide Select bits <Set the digital input filter clock divide based on our osc and max encoder speed
	QEI1IOCbits.OUTFNC = 0;		//Output is disabled
	QEI1IOCbits.SWPAB = 0;
	QEI1IOCbits.HOMPOL = 0;
	QEI1IOCbits.IDXPOL = 0;
	QEI1IOCbits.QEBPOL = 0;
	QEI1IOCbits.QEAPOL = 0;

	POS1CNTH = 0;				//Write MSW first
	POS1CNTL = 0;

	QEI1CONbits.QEIEN = 1;		//Module counters are enabled

	// = POS1CNTL;				//Read LSW first
	// = POS1CNTH;