qep.c File Reference

#include "qep.h"
#include "cpu.h"

Go to the source code of this file.

Functions
void	InitQEP1 (void(*interruptFCN)(void), Uint16 qep_us, PCRM pcrm, Uint16 lines, Uint16 polePairs)
void	InitQEP2 (void(*interruptFCN)(void), Uint16 qep_us, PCRM pcrm, Uint16 lines, Uint16 polePairs)
static void	StoreQEPConf (volatile struct QEP *qep, volatile struct EQEP_REGS *eQEPRegs, Uint16 lines, Uint16 polePairs)
static void	ConfigureEQEP (volatile struct EQEP_REGS *eQEPRegs, void(*interruptFCN)(void), Uint32 qUPRD, PCRM pcrm, Uint32 qPOSMAX)
void	InitEQep1Gpio (void)
	Init GPIO ports as needed for encoder connection QEP1 (GPIO20, GPIO21, GPIO23).
void	InitEQep2Gpio (void)
	Init GPIO ports as needed for encoder connection QEP2 (GPIO24, GPIO25, GPIO26).
void	ConfigureQEP1 (void(*interruptFCN)(void), Uint16 qep_us, PCRM pcrm, Uint16 lines, Uint16 polePairs)
void	ConfigureQEP2 (void(*interruptFCN)(void), Uint16 qep_us, PCRM pcrm, Uint16 lines, Uint16 polePairs)
void	SwapDirection (volatile struct QEP *qep)
Variables
struct QEP	qep1
struct QEP	qep2

---

Function Documentation

static void ConfigureEQEP	(	volatile struct EQEP_REGS *	eQEPRegs,
		void(*)(void)	interruptFCN,
		Uint32	qUPRD,
		PCRM	pcrm,
		Uint32	qPOSMAX
	)			[inline, static]

Definition at line 117 of file qep.c.

void ConfigureQEP1	(	void(*)(void)	interruptFCN,
		Uint16	qep_us,
		PCRM	pcrm,
		Uint16	lines,
		Uint16	polePairs
	)

Initialize encoder reading (QEP1)

Parameters:

	interruptFCN	function to be called each qep_us
	qep_us	unit timer
	pcrm	position counter reset mode (PCRM_IE/PCRM_MAX_POS/PCRM_FIE/PCRM_UTE)
	lines	encoder lines
	polePairs	machine pole pairs

Examples:

TIMotorLIBExampleHrdw/main.c, and TIMotorLIBExampleSw/main.c.

Definition at line 53 of file qep.c.

void ConfigureQEP2	(	void(*)(void)	interruptFCN,
		Uint16	qep_us,
		PCRM	pcrm,
		Uint16	lines,
		Uint16	polePairs
	)

Initialize encoder reading (QEP2)

Parameters:

	interruptFCN	function to be called each qep_us
	qep_us	unit timer
	pcrm	position counter reset mode
	lines	encoder lines
	polePairs	machine pole pairs

Definition at line 73 of file qep.c.

void InitEQep1Gpio

(

void

)

Init GPIO ports as needed for encoder connection QEP1 (GPIO20, GPIO21, GPIO23).

Definition at line 154 of file qep.c.

void InitEQep2Gpio

(

void

)

Init GPIO ports as needed for encoder connection QEP2 (GPIO24, GPIO25, GPIO26).

Definition at line 163 of file qep.c.

void InitQEP1	(	void(*)(void)	interruptFCN,
		Uint16	qep_us,
		PCRM	pcrm,
		Uint16	lines,
		Uint16	polePairs
	)

void InitQEP2	(	void(*)(void)	interruptFCN,
		Uint16	qep_us,
		PCRM	pcrm,
		Uint16	lines,
		Uint16	polePairs
	)

static void StoreQEPConf	(	volatile struct QEP *	qep,
		volatile struct EQEP_REGS *	eQEPRegs,
		Uint16	lines,
		Uint16	polePairs
	)			[inline, static]

Definition at line 94 of file qep.c.

void SwapDirection

(

volatile struct QEP *

qep

)

Swaps direction of positive counting

Parameters:

pointer

to qep unit (qep1/qep2)

Definition at line 172 of file qep.c.

---

Variable Documentation

struct QEP qep1

Definition at line 32 of file qep.c.

struct QEP qep2

Definition at line 33 of file qep.c.