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git-subtree-dir: examples/knx-cc1310/coresdk_cc13xx_cc26xx git-subtree-split: 0d78d3280357416a5c0388148cda13717c9ffaa5
252 lines
8.7 KiB
C
252 lines
8.7 KiB
C
/******************************************************************************
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* Filename: aux_timer.c
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* Revised: 2017-06-05 12:13:49 +0200 (Mon, 05 Jun 2017)
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* Revision: 49096
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*
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* Description: Driver for the AUX Timer Module
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*
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* Copyright (c) 2015 - 2017, Texas Instruments Incorporated
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* All rights reserved.
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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 are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of the ORGANIZATION nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************/
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#include "aux_timer.h"
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//*****************************************************************************
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//
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// Handle support for DriverLib in ROM:
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// This section will undo prototype renaming made in the header file
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//
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//*****************************************************************************
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#if !defined(DOXYGEN)
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#undef AUXTimerConfigure
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#define AUXTimerConfigure NOROM_AUXTimerConfigure
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#undef AUXTimerStart
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#define AUXTimerStart NOROM_AUXTimerStart
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#undef AUXTimerStop
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#define AUXTimerStop NOROM_AUXTimerStop
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#undef AUXTimerPrescaleSet
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#define AUXTimerPrescaleSet NOROM_AUXTimerPrescaleSet
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#undef AUXTimerPrescaleGet
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#define AUXTimerPrescaleGet NOROM_AUXTimerPrescaleGet
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#endif
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//*****************************************************************************
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//
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// Configure AUX timer
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//
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//*****************************************************************************
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void
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AUXTimerConfigure(uint32_t ui32Timer, uint32_t ui32Config)
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{
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uint32_t ui32Val;
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// Check the arguments.
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ASSERT((ui32Timer == AUX_TIMER_0) || (ui32Timer == AUX_TIMER_1) ||
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(ui32Timer == AUX_TIMER_BOTH));
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// Configure Timer 0.
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if(ui32Timer & AUX_TIMER_0)
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{
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// Stop timer 0.
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CTL) = 0;
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// Set mode.
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ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG);
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ui32Val &= ~(AUX_TIMER_T0CFG_MODE_M | AUX_TIMER_T0CFG_RELOAD_M);
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ui32Val |= (ui32Config & (AUX_TIMER_T0CFG_MODE_M |
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AUX_TIMER_T0CFG_RELOAD_M));
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG) = ui32Val;
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// If edge counter, set rising/falling edge and tick source.
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if(ui32Config & AUX_TIMER_T0CFG_MODE_M)
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{
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ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG);
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ui32Val &= ~(AUX_TIMER_T0CFG_TICK_SRC_POL_M |
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AUX_TIMER_T0CFG_TICK_SRC_M);
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// Set edge polarity.
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if(ui32Config & AUX_TIMER_CFG_FALLING_EDGE)
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{
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ui32Val |= AUX_TIMER_T0CFG_TICK_SRC_POL;
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}
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// Set tick source.
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ui32Val |= (ui32Config & AUX_TIMER_T0CFG_TICK_SRC_M);
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG) = ui32Val;
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}
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}
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// Configure Timer 1.
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if(ui32Timer & AUX_TIMER_1)
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{
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// Stop timer 1.
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CTL) = 0;
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// Set mode.
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ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG);
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ui32Val &= ~(AUX_TIMER_T1CFG_MODE_M | AUX_TIMER_T1CFG_RELOAD_M);
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ui32Val |= ((ui32Config) & (AUX_TIMER_T1CFG_MODE_M |
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AUX_TIMER_T1CFG_RELOAD_M));
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG) = ui32Val;
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// If edge counter, set rising/falling edge and tick source.
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if(ui32Config & AUX_TIMER_T1CFG_MODE)
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{
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ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG);
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ui32Val &= ~(AUX_TIMER_T1CFG_TICK_SRC_POL_M |
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AUX_TIMER_T1CFG_TICK_SRC_M);
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// Set edge polarity.
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if(ui32Config & AUX_TIMER_CFG_FALLING_EDGE)
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{
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ui32Val |= AUX_TIMER_T1CFG_TICK_SRC_POL;
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}
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// Set tick source.
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ui32Val |= (ui32Config & AUX_TIMER_T1CFG_TICK_SRC_M);
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG) = ui32Val;
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}
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}
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}
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//*****************************************************************************
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//
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// Start AUX timer
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//
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//*****************************************************************************
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void
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AUXTimerStart(uint32_t ui32Timer)
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{
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// Check the arguments.
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ASSERT((ui32Timer == AUX_TIMER_0) ||
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(ui32Timer == AUX_TIMER_1) ||
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(ui32Timer == AUX_TIMER_BOTH));
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if(ui32Timer & AUX_TIMER_0)
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{
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// Start timer 0.
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CTL) = AUX_TIMER_T0CTL_EN;
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}
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if(ui32Timer & AUX_TIMER_1)
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{
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// Start timer 1.
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CTL) = AUX_TIMER_T1CTL_EN;
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}
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}
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//*****************************************************************************
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//
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// Stop AUX timer
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//
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//*****************************************************************************
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void
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AUXTimerStop(uint32_t ui32Timer)
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{
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// Check the arguments.
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ASSERT((ui32Timer == AUX_TIMER_0) ||
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(ui32Timer == AUX_TIMER_1) ||
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(ui32Timer == AUX_TIMER_BOTH));
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if(ui32Timer & AUX_TIMER_0)
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{
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// Stop timer 0.
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CTL) = 0;
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}
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if(ui32Timer & AUX_TIMER_1)
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{
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// Stop timer 1.
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CTL) = 0;
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}
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}
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//*****************************************************************************
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//
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// Set AUX timer prescale value
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//
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//*****************************************************************************
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void
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AUXTimerPrescaleSet(uint32_t ui32Timer, uint32_t ui32PrescaleDiv)
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{
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uint32_t ui32Val;
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// Check the arguments.
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ASSERT((ui32Timer == AUX_TIMER_0) || (ui32Timer == AUX_TIMER_1) ||
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(ui32Timer == AUX_TIMER_BOTH));
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ASSERT(ui32PrescaleDiv <= AUX_TIMER_PRESCALE_DIV_32768);
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if(ui32Timer & AUX_TIMER_0)
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{
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// Set timer 0 prescale value.
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ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG);
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ui32Val &= ~AUX_TIMER_T0CFG_PRE_M;
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ui32Val |= ui32PrescaleDiv << AUX_TIMER_T0CFG_PRE_S;
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG) = ui32Val;
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}
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if(ui32Timer & AUX_TIMER_1)
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{
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// Set timer 1 prescale value.
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ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG);
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ui32Val &= ~AUX_TIMER_T1CFG_PRE_M;
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ui32Val |= ui32PrescaleDiv << AUX_TIMER_T1CFG_PRE_S;
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HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG) = ui32Val;
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}
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}
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//*****************************************************************************
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//
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// Get AUX timer prescale value
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//
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//*****************************************************************************
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uint32_t
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AUXTimerPrescaleGet(uint32_t ui32Timer)
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{
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uint32_t ui32Val;
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uint32_t ui32PrescaleDiv;
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// Check the arguments.
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ASSERT((ui32Timer == AUX_TIMER_0) || (ui32Timer == AUX_TIMER_1));
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ui32Val = (HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG));
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if(ui32Timer & AUX_TIMER_0)
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{
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// Get timer 0 prescale value.
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ui32PrescaleDiv =
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(ui32Val & AUX_TIMER_T0CFG_PRE_M) >> AUX_TIMER_T0CFG_PRE_S;
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}
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else
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{
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// Get timer 1 prescale value.
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ui32PrescaleDiv =
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(ui32Val & AUX_TIMER_T1CFG_PRE_M) >> AUX_TIMER_T1CFG_PRE_S;
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}
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return(ui32PrescaleDiv);
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}
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