296 lines
15 KiB
C
296 lines
15 KiB
C
//*****************************************************************************
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//
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// pwm.h - API function protoypes for Pulse Width Modulation (PWM) ports
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//
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// Copyright (c) 2005-2013 Texas Instruments Incorporated. All rights reserved.
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// Software License Agreement
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// This is part of revision 1.1 of the Tiva Peripheral Driver Library.
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//
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//*****************************************************************************
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#ifndef __DRIVERLIB_PWM_H__
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#define __DRIVERLIB_PWM_H__
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//*****************************************************************************
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//
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// If building with a C++ compiler, make all of the definitions in this header
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// have a C binding.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//*****************************************************************************
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//
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// The following defines are passed to PWMGenConfigure() as the ui32Config
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// parameter and specify the configuration of the PWM generator.
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//
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//*****************************************************************************
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#define PWM_GEN_MODE_DOWN 0x00000000 // Down count mode
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#define PWM_GEN_MODE_UP_DOWN 0x00000002 // Up/Down count mode
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#define PWM_GEN_MODE_SYNC 0x00000038 // Synchronous updates
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#define PWM_GEN_MODE_NO_SYNC 0x00000000 // Immediate updates
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#define PWM_GEN_MODE_DBG_RUN 0x00000004 // Continue running in debug mode
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#define PWM_GEN_MODE_DBG_STOP 0x00000000 // Stop running in debug mode
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#define PWM_GEN_MODE_FAULT_LATCHED \
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0x00040000 // Fault is latched
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#define PWM_GEN_MODE_FAULT_UNLATCHED \
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0x00000000 // Fault is not latched
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#define PWM_GEN_MODE_FAULT_MINPER \
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0x00020000 // Enable min fault period
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#define PWM_GEN_MODE_FAULT_NO_MINPER \
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0x00000000 // Disable min fault period
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#define PWM_GEN_MODE_FAULT_EXT 0x00010000 // Enable extended fault support
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#define PWM_GEN_MODE_FAULT_LEGACY \
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0x00000000 // Disable extended fault support
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#define PWM_GEN_MODE_DB_NO_SYNC 0x00000000 // Deadband updates occur
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// immediately
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#define PWM_GEN_MODE_DB_SYNC_LOCAL \
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0x0000A800 // Deadband updates locally
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// synchronized
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#define PWM_GEN_MODE_DB_SYNC_GLOBAL \
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0x0000FC00 // Deadband updates globally
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// synchronized
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#define PWM_GEN_MODE_GEN_NO_SYNC \
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0x00000000 // Generator mode updates occur
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// immediately
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#define PWM_GEN_MODE_GEN_SYNC_LOCAL \
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0x00000280 // Generator mode updates locally
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// synchronized
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#define PWM_GEN_MODE_GEN_SYNC_GLOBAL \
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0x000003C0 // Generator mode updates globally
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// synchronized
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//*****************************************************************************
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//
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// Defines for enabling, disabling, and clearing PWM generator interrupts and
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// triggers.
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//
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//*****************************************************************************
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#define PWM_INT_CNT_ZERO 0x00000001 // Int if COUNT = 0
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#define PWM_INT_CNT_LOAD 0x00000002 // Int if COUNT = LOAD
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#define PWM_INT_CNT_AU 0x00000004 // Int if COUNT = CMPA U
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#define PWM_INT_CNT_AD 0x00000008 // Int if COUNT = CMPA D
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#define PWM_INT_CNT_BU 0x00000010 // Int if COUNT = CMPA U
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#define PWM_INT_CNT_BD 0x00000020 // Int if COUNT = CMPA D
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#define PWM_TR_CNT_ZERO 0x00000100 // Trig if COUNT = 0
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#define PWM_TR_CNT_LOAD 0x00000200 // Trig if COUNT = LOAD
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#define PWM_TR_CNT_AU 0x00000400 // Trig if COUNT = CMPA U
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#define PWM_TR_CNT_AD 0x00000800 // Trig if COUNT = CMPA D
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#define PWM_TR_CNT_BU 0x00001000 // Trig if COUNT = CMPA U
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#define PWM_TR_CNT_BD 0x00002000 // Trig if COUNT = CMPA D
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//*****************************************************************************
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//
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// Defines for enabling, disabling, and clearing PWM interrupts.
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//
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//*****************************************************************************
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#define PWM_INT_GEN_0 0x00000001 // Generator 0 interrupt
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#define PWM_INT_GEN_1 0x00000002 // Generator 1 interrupt
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#define PWM_INT_GEN_2 0x00000004 // Generator 2 interrupt
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#define PWM_INT_GEN_3 0x00000008 // Generator 3 interrupt
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#define PWM_INT_FAULT0 0x00010000 // Fault0 interrupt
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#define PWM_INT_FAULT1 0x00020000 // Fault1 interrupt
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#define PWM_INT_FAULT2 0x00040000 // Fault2 interrupt
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#define PWM_INT_FAULT3 0x00080000 // Fault3 interrupt
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#define PWM_INT_FAULT_M 0x000F0000 // Fault interrupt source mask
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//*****************************************************************************
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//
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// Defines to identify the generators within a module.
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//
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//*****************************************************************************
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#define PWM_GEN_0 0x00000040 // Offset address of Gen0
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#define PWM_GEN_1 0x00000080 // Offset address of Gen1
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#define PWM_GEN_2 0x000000C0 // Offset address of Gen2
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#define PWM_GEN_3 0x00000100 // Offset address of Gen3
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#define PWM_GEN_0_BIT 0x00000001 // Bit-wise ID for Gen0
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#define PWM_GEN_1_BIT 0x00000002 // Bit-wise ID for Gen1
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#define PWM_GEN_2_BIT 0x00000004 // Bit-wise ID for Gen2
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#define PWM_GEN_3_BIT 0x00000008 // Bit-wise ID for Gen3
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#define PWM_GEN_EXT_0 0x00000800 // Offset of Gen0 ext address range
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#define PWM_GEN_EXT_1 0x00000880 // Offset of Gen1 ext address range
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#define PWM_GEN_EXT_2 0x00000900 // Offset of Gen2 ext address range
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#define PWM_GEN_EXT_3 0x00000980 // Offset of Gen3 ext address range
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//*****************************************************************************
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//
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// Defines to identify the outputs within a module.
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//
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//*****************************************************************************
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#define PWM_OUT_0 0x00000040 // Encoded offset address of PWM0
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#define PWM_OUT_1 0x00000041 // Encoded offset address of PWM1
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#define PWM_OUT_2 0x00000082 // Encoded offset address of PWM2
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#define PWM_OUT_3 0x00000083 // Encoded offset address of PWM3
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#define PWM_OUT_4 0x000000C4 // Encoded offset address of PWM4
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#define PWM_OUT_5 0x000000C5 // Encoded offset address of PWM5
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#define PWM_OUT_6 0x00000106 // Encoded offset address of PWM6
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#define PWM_OUT_7 0x00000107 // Encoded offset address of PWM7
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#define PWM_OUT_0_BIT 0x00000001 // Bit-wise ID for PWM0
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#define PWM_OUT_1_BIT 0x00000002 // Bit-wise ID for PWM1
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#define PWM_OUT_2_BIT 0x00000004 // Bit-wise ID for PWM2
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#define PWM_OUT_3_BIT 0x00000008 // Bit-wise ID for PWM3
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#define PWM_OUT_4_BIT 0x00000010 // Bit-wise ID for PWM4
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#define PWM_OUT_5_BIT 0x00000020 // Bit-wise ID for PWM5
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#define PWM_OUT_6_BIT 0x00000040 // Bit-wise ID for PWM6
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#define PWM_OUT_7_BIT 0x00000080 // Bit-wise ID for PWM7
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//*****************************************************************************
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//
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// Defines to identify each of the possible fault trigger conditions in
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// PWM_FAULT_GROUP_0.
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//
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//*****************************************************************************
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#define PWM_FAULT_GROUP_0 0
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#define PWM_FAULT_FAULT0 0x00000001
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#define PWM_FAULT_FAULT1 0x00000002
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#define PWM_FAULT_FAULT2 0x00000004
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#define PWM_FAULT_FAULT3 0x00000008
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#define PWM_FAULT_ACMP0 0x00010000
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#define PWM_FAULT_ACMP1 0x00020000
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#define PWM_FAULT_ACMP2 0x00040000
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//*****************************************************************************
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//
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// Defines to identify each of the possible fault trigger conditions in
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// PWM_FAULT_GROUP_1.
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//
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//*****************************************************************************
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#define PWM_FAULT_GROUP_1 1
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#define PWM_FAULT_DCMP0 0x00000001
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#define PWM_FAULT_DCMP1 0x00000002
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#define PWM_FAULT_DCMP2 0x00000004
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#define PWM_FAULT_DCMP3 0x00000008
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#define PWM_FAULT_DCMP4 0x00000010
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#define PWM_FAULT_DCMP5 0x00000020
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#define PWM_FAULT_DCMP6 0x00000040
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#define PWM_FAULT_DCMP7 0x00000080
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//*****************************************************************************
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//
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// Defines to identify the sense of each of the external FAULTn signals
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//
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//*****************************************************************************
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#define PWM_FAULT0_SENSE_HIGH 0x00000000
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#define PWM_FAULT0_SENSE_LOW 0x00000001
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#define PWM_FAULT1_SENSE_HIGH 0x00000000
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#define PWM_FAULT1_SENSE_LOW 0x00000002
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#define PWM_FAULT2_SENSE_HIGH 0x00000000
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#define PWM_FAULT2_SENSE_LOW 0x00000004
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#define PWM_FAULT3_SENSE_HIGH 0x00000000
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#define PWM_FAULT3_SENSE_LOW 0x00000008
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//*****************************************************************************
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//
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// API Function prototypes
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//
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//*****************************************************************************
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extern void PWMGenConfigure(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32Config);
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extern void PWMGenPeriodSet(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32Period);
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extern uint32_t PWMGenPeriodGet(uint32_t ui32Base,
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uint32_t ui32Gen);
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extern void PWMGenEnable(uint32_t ui32Base, uint32_t ui32Gen);
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extern void PWMGenDisable(uint32_t ui32Base, uint32_t ui32Gen);
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extern void PWMPulseWidthSet(uint32_t ui32Base, uint32_t ui32PWMOut,
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uint32_t ui32Width);
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extern uint32_t PWMPulseWidthGet(uint32_t ui32Base,
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uint32_t ui32PWMOut);
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extern void PWMDeadBandEnable(uint32_t ui32Base, uint32_t ui32Gen,
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uint16_t ui16Rise, uint16_t ui16Fall);
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extern void PWMDeadBandDisable(uint32_t ui32Base, uint32_t ui32Gen);
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extern void PWMSyncUpdate(uint32_t ui32Base, uint32_t ui32GenBits);
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extern void PWMSyncTimeBase(uint32_t ui32Base, uint32_t ui32GenBits);
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extern void PWMOutputState(uint32_t ui32Base, uint32_t ui32PWMOutBits,
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bool bEnable);
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extern void PWMOutputInvert(uint32_t ui32Base, uint32_t ui32PWMOutBits,
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bool bInvert);
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extern void PWMOutputFaultLevel(uint32_t ui32Base,
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uint32_t ui32PWMOutBits,
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bool bDriveHigh);
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extern void PWMOutputFault(uint32_t ui32Base, uint32_t ui32PWMOutBits,
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bool bFaultSuppress);
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extern void PWMGenIntRegister(uint32_t ui32Base, uint32_t ui32Gen,
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void (*pfnIntHandler)(void));
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extern void PWMGenIntUnregister(uint32_t ui32Base, uint32_t ui32Gen);
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extern void PWMFaultIntRegister(uint32_t ui32Base,
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void (*pfnIntHandler)(void));
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extern void PWMFaultIntUnregister(uint32_t ui32Base);
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extern void PWMGenIntTrigEnable(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32IntTrig);
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extern void PWMGenIntTrigDisable(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32IntTrig);
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extern uint32_t PWMGenIntStatus(uint32_t ui32Base, uint32_t ui32Gen,
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bool bMasked);
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extern void PWMGenIntClear(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32Ints);
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extern void PWMIntEnable(uint32_t ui32Base, uint32_t ui32GenFault);
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extern void PWMIntDisable(uint32_t ui32Base, uint32_t ui32GenFault);
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extern void PWMFaultIntClear(uint32_t ui32Base);
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extern uint32_t PWMIntStatus(uint32_t ui32Base, bool bMasked);
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extern void PWMFaultIntClearExt(uint32_t ui32Base,
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uint32_t ui32FaultInts);
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extern void PWMGenFaultConfigure(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32MinFaultPeriod,
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uint32_t ui32FaultSenses);
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extern void PWMGenFaultTriggerSet(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32Group,
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uint32_t ui32FaultTriggers);
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extern uint32_t PWMGenFaultTriggerGet(uint32_t ui32Base,
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uint32_t ui32Gen,
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uint32_t ui32Group);
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extern uint32_t PWMGenFaultStatus(uint32_t ui32Base,
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uint32_t ui32Gen,
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uint32_t ui32Group);
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extern void PWMGenFaultClear(uint32_t ui32Base, uint32_t ui32Gen,
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uint32_t ui32Group,
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uint32_t ui32FaultTriggers);
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//*****************************************************************************
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//
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// Mark the end of the C bindings section for C++ compilers.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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}
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#endif
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#endif // __DRIVERLIB_PWM_H__
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