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//*****************************************************************************
//
// hw_qei.h - Macros used when accessing the QEI hardware.
//
// Copyright (c) 2005-2008 Luminary Micro, Inc. All rights reserved.
//
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws. All rights are reserved. You may not combine
// this software with "viral" open-source software in order to form a larger
// program. Any use in violation of the foregoing restrictions may subject
// the user to criminal sanctions under applicable laws, as well as to civil
// liability for the breach of the terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 2523 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************
#ifndef __HW_QEI_H__
#define __HW_QEI_H__
//*****************************************************************************
//
// The following are defines for the QEI register offsets.
//
//*****************************************************************************
#define QEI_O_CTL 0x00000000 // Configuration and control reg.
#define QEI_O_STAT 0x00000004 // Status register
#define QEI_O_POS 0x00000008 // Current position register
#define QEI_O_MAXPOS 0x0000000C // Maximum position register
#define QEI_O_LOAD 0x00000010 // Velocity timer load register
#define QEI_O_TIME 0x00000014 // Velocity timer register
#define QEI_O_COUNT 0x00000018 // Velocity pulse count register
#define QEI_O_SPEED 0x0000001C // Velocity speed register
#define QEI_O_INTEN 0x00000020 // Interrupt enable register
#define QEI_O_RIS 0x00000024 // Raw interrupt status register
#define QEI_O_ISC 0x00000028 // Interrupt status register
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_CTL register.
//
//*****************************************************************************
#define QEI_CTL_STALLEN 0x00001000 // Stall enable
#define QEI_CTL_INVI 0x00000800 // Invert Index input
#define QEI_CTL_INVB 0x00000400 // Invert PhB input
#define QEI_CTL_INVA 0x00000200 // Invert PhA input
#define QEI_CTL_VELDIV_M 0x000001C0 // Velocity predivider mask
#define QEI_CTL_VELDIV_1 0x00000000 // Predivide by 1
#define QEI_CTL_VELDIV_2 0x00000040 // Predivide by 2
#define QEI_CTL_VELDIV_4 0x00000080 // Predivide by 4
#define QEI_CTL_VELDIV_8 0x000000C0 // Predivide by 8
#define QEI_CTL_VELDIV_16 0x00000100 // Predivide by 16
#define QEI_CTL_VELDIV_32 0x00000140 // Predivide by 32
#define QEI_CTL_VELDIV_64 0x00000180 // Predivide by 64
#define QEI_CTL_VELDIV_128 0x000001C0 // Predivide by 128
#define QEI_CTL_VELEN 0x00000020 // Velocity enable
#define QEI_CTL_RESMODE 0x00000010 // Position counter reset mode
#define QEI_CTL_CAPMODE 0x00000008 // Edge capture mode
#define QEI_CTL_SIGMODE 0x00000004 // Encoder signaling mode
#define QEI_CTL_SWAP 0x00000002 // Swap input signals
#define QEI_CTL_ENABLE 0x00000001 // QEI enable
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_STAT register.
//
//*****************************************************************************
#define QEI_STAT_DIRECTION 0x00000002 // Direction of rotation
#define QEI_STAT_ERROR 0x00000001 // Signalling error detected
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_POS register.
//
//*****************************************************************************
#define QEI_POS_M 0xFFFFFFFF // Current encoder position
#define QEI_POS_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_MAXPOS register.
//
//*****************************************************************************
#define QEI_MAXPOS_M 0xFFFFFFFF // Maximum encoder position
#define QEI_MAXPOS_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_LOAD register.
//
//*****************************************************************************
#define QEI_LOAD_M 0xFFFFFFFF // Velocity timer load value
#define QEI_LOAD_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_TIME register.
//
//*****************************************************************************
#define QEI_TIME_M 0xFFFFFFFF // Velocity timer current value
#define QEI_TIME_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_COUNT register.
//
//*****************************************************************************
#define QEI_COUNT_M 0xFFFFFFFF // Encoder running pulse count
#define QEI_COUNT_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_SPEED register.
//
//*****************************************************************************
#define QEI_SPEED_M 0xFFFFFFFF // Encoder pulse count
#define QEI_SPEED_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_INTEN register.
//
//*****************************************************************************
#define QEI_INTEN_ERROR 0x00000008 // Phase error detected
#define QEI_INTEN_DIR 0x00000004 // Direction change
#define QEI_INTEN_TIMER 0x00000002 // Velocity timer expired
#define QEI_INTEN_INDEX 0x00000001 // Index pulse detected
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_RIS register.
//
//*****************************************************************************
#define QEI_RIS_ERROR 0x00000008 // Phase error detected
#define QEI_RIS_DIR 0x00000004 // Direction change
#define QEI_RIS_TIMER 0x00000002 // Velocity timer expired
#define QEI_RIS_INDEX 0x00000001 // Index pulse detected
//*****************************************************************************
//
// The following are defines for the bit fields in the QEI_O_ISC register.
//
//*****************************************************************************
#define QEI_ISC_ERROR 0x00000008 // Phase Error Interrupt.
#define QEI_ISC_DIR 0x00000004 // Direction Change Interrupt.
#define QEI_ISC_TIMER 0x00000002 // Velocity Timer Expired
// Interrupt.
#define QEI_ISC_INDEX 0x00000001 // Index Pulse Interrupt.
//*****************************************************************************
//
// The following definitions are deprecated.
//
//*****************************************************************************
#ifndef DEPRECATED
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the QEI_ISC
// register.
//
//*****************************************************************************
#define QEI_INT_ERROR 0x00000008 // Phase error detected
#define QEI_INT_DIR 0x00000004 // Direction change
#define QEI_INT_TIMER 0x00000002 // Velocity timer expired
#define QEI_INT_INDEX 0x00000001 // Index pulse detected
//*****************************************************************************
//
// The following are deprecated defines for the reset values for the QEI
// registers.
//
//*****************************************************************************
#define QEI_RV_POS 0x00000000 // Current position register
#define QEI_RV_LOAD 0x00000000 // Velocity timer load register
#define QEI_RV_CTL 0x00000000 // Configuration and control reg.
#define QEI_RV_RIS 0x00000000 // Raw interrupt status register
#define QEI_RV_ISC 0x00000000 // Interrupt status register
#define QEI_RV_SPEED 0x00000000 // Velocity speed register
#define QEI_RV_INTEN 0x00000000 // Interrupt enable register
#define QEI_RV_STAT 0x00000000 // Status register
#define QEI_RV_COUNT 0x00000000 // Velocity pulse count register
#define QEI_RV_MAXPOS 0x00000000 // Maximum position register
#define QEI_RV_TIME 0x00000000 // Velocity timer register
#endif
#endif // __HW_QEI_H__
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