152 lines
4.9 KiB
C
152 lines
4.9 KiB
C
/*
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* -------------------------------------------
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* MSP432 DriverLib - v3_40_00_10
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* -------------------------------------------
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*
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* --COPYRIGHT--,BSD,BSD
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* Copyright (c) 2016, 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
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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 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 "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --/COPYRIGHT--*/
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#include <timer32.h>
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#include <interrupt.h>
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#include <debug.h>
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void Timer32_initModule(uint32_t timer, uint32_t preScaler, uint32_t resolution,
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uint32_t mode)
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{
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/* Setting up one shot or continuous mode */
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if (mode == TIMER32_PERIODIC_MODE)
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BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_MODE_OFS)
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= 1;
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else if (mode == TIMER32_FREE_RUN_MODE)
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BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_MODE_OFS)
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= 0;
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else
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ASSERT(false);
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/* Setting the resolution of the timer */
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if (resolution == TIMER32_16BIT)
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BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_SIZE_OFS)
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= 0;
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else if (resolution == TIMER32_32BIT)
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BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_SIZE_OFS)
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= 1;
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else
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ASSERT(false);
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/* Setting the PreScaler */
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ASSERT(
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resolution == TIMER32_PRESCALER_1
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|| resolution == TIMER32_PRESCALER_16
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|| resolution == TIMER32_PRESCALER_256);
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TIMER32_CMSIS(timer)->CONTROL = TIMER32_CMSIS(timer)->CONTROL
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& (~TIMER32_CONTROL_PRESCALE_MASK) | preScaler;
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}
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void Timer32_setCount(uint32_t timer, uint32_t count)
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{
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if (!BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_SIZE_OFS)
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&& (count > UINT16_MAX))
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TIMER32_CMSIS(timer)->LOAD = UINT16_MAX;
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else
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TIMER32_CMSIS(timer)->LOAD = count;
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}
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void Timer32_setCountInBackground(uint32_t timer, uint32_t count)
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{
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if (!BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_SIZE_OFS)
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&& (count > UINT16_MAX))
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TIMER32_CMSIS(timer)->BGLOAD = UINT16_MAX;
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else
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TIMER32_CMSIS(timer)->BGLOAD = count;
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}
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uint32_t Timer32_getValue(uint32_t timer)
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{
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return TIMER32_CMSIS(timer)->VALUE;
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}
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void Timer32_startTimer(uint32_t timer, bool oneShot)
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{
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ASSERT(timer == TIMER32_0_MODULE || timer == TIMER32_1_MODULE);
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if (oneShot)
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BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_ONESHOT_OFS)
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= 1;
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else
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BITBAND_PERI(TIMER32_CMSIS(timer)->CONTROL, TIMER32_CONTROL_ONESHOT_OFS)
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= 0;
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TIMER32_CMSIS(timer)->CONTROL |= TIMER32_CONTROL_ENABLE;
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}
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void Timer32_haltTimer(uint32_t timer)
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{
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ASSERT(timer == TIMER32_0_MODULE || timer == TIMER32_1_MODULE);
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TIMER32_CMSIS(timer)->CONTROL &= ~TIMER32_CONTROL_ENABLE;
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}
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void Timer32_enableInterrupt(uint32_t timer)
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{
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TIMER32_CMSIS(timer)->CONTROL |= TIMER32_CONTROL_IE;
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}
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void Timer32_disableInterrupt(uint32_t timer)
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{
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TIMER32_CMSIS(timer)->CONTROL &= ~TIMER32_CONTROL_IE;
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}
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void Timer32_clearInterruptFlag(uint32_t timer)
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{
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TIMER32_CMSIS(timer)->INTCLR |= 0x01;
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}
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uint32_t Timer32_getInterruptStatus(uint32_t timer)
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{
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return TIMER32_CMSIS(timer)->MIS;
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}
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void Timer32_registerInterrupt(uint32_t timerInterrupt,
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void (*intHandler)(void))
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{
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Interrupt_registerInterrupt(timerInterrupt, intHandler);
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Interrupt_enableInterrupt(timerInterrupt);
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}
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void Timer32_unregisterInterrupt(uint32_t timerInterrupt)
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{
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Interrupt_disableInterrupt(timerInterrupt);
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Interrupt_unregisterInterrupt(timerInterrupt);
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}
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