170 lines
5.6 KiB
C
Executable File
170 lines
5.6 KiB
C
Executable File
/* --COPYRIGHT--,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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//*****************************************************************************
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//
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// ecomp.c - Driver for the ecomp Module.
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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//! \addtogroup ecomp_api ecomp
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//! @{
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//
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//*****************************************************************************
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#include "inc/hw_memmap.h"
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#ifdef __MSP430_HAS_ECOMPx__
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#include "ecomp.h"
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#include <assert.h>
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void EComp_init(uint16_t baseAddress,
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EComp_initParam *param)
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{
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HWREG16(baseAddress + OFS_CPCTL0) &= ~(CPNEN | CPNSEL_7 | CPPEN | CPPSEL_7);
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HWREG16(baseAddress + OFS_CPCTL1) &= ~(CPFLT | CPFLTDLY_3 | CPINV);
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if(param->positiveTerminalInput != ECOMP_INPUT_DISABLED)
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{
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HWREG16(baseAddress +
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OFS_CPCTL0) |= CPPEN | param->positiveTerminalInput;
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}
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if(param->negativeTerminalInput != ECOMP_INPUT_DISABLED)
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{
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HWREG16(baseAddress +
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OFS_CPCTL0) |= CPNEN | (param->negativeTerminalInput << 8);
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}
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HWREG16(baseAddress +
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OFS_CPCTL1) |= param->outputFilterEnableAndDelayLevel |
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param->invertedOutputPolarity;
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}
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void EComp_selectHysteresisMode(uint16_t baseAddress,
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uint16_t hysteresisMode)
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{
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HWREG16(baseAddress + OFS_CPCTL1) &= ~CPHSEL_3;
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HWREG16(baseAddress + OFS_CPCTL1) |= hysteresisMode;
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}
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void EComp_selectPowerMode(uint16_t baseAddress,
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uint16_t powerMode)
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{
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HWREG16(baseAddress + OFS_CPCTL1) &= ~CPMSEL;
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HWREG16(baseAddress + OFS_CPCTL1) |= powerMode;
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}
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void EComp_enable(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_CPCTL1) |= CPEN;
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}
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void EComp_disable(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_CPCTL1) &= ~CPEN;
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}
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void EComp_enableInterrupt(uint16_t baseAddress,
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uint16_t interruptMask)
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{
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HWREG16(baseAddress + OFS_CPCTL1) |= interruptMask;
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}
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void EComp_disableInterrupt(uint16_t baseAddress,
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uint16_t interruptMask)
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{
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HWREG16(baseAddress + OFS_CPCTL1) &= ~(interruptMask);
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}
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void EComp_clearInterrupt(uint16_t baseAddress,
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uint16_t interruptFlagMask)
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{
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HWREG16(baseAddress + OFS_CPINT) |= interruptFlagMask;
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}
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uint8_t EComp_getInterruptStatus(uint16_t baseAddress,
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uint16_t interruptFlagMask)
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{
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return (HWREG8(baseAddress + OFS_CPINT) & interruptFlagMask);
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}
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void EComp_setInterruptEdgeDirection(uint16_t baseAddress,
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uint16_t edgeDirection)
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{
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HWREG16(baseAddress + OFS_CPCTL1) &= ~CPIES;
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HWREG16(baseAddress + OFS_CPCTL1) |= edgeDirection;
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}
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void EComp_toggleInterruptEdgeDirection(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_CPCTL1) ^= CPIES;
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}
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uint8_t EComp_outputValue(uint16_t baseAddress)
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{
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return (HWREG8(baseAddress + OFS_CPCTL1) & CPOUT);
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}
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void EComp_configureDAC(uint16_t baseAddress,
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EComp_configureDACParam *param)
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{
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HWREG16(baseAddress + OFS_CPDACCTL) &= ~(CPDACREFS | CPDACBUFS | CPDACSW);
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HWREG16(baseAddress + OFS_CPDACDATA) &= 0xC0C0;
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HWREG16(baseAddress + OFS_CPDACCTL) |= param->referenceVoltage |
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param->bufferSource;
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HWREG16(baseAddress + OFS_CPDACDATA) |= param->firstBufferData;
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HWREG16(baseAddress + OFS_CPDACDATA) |= param->secondBufferData << 8;
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}
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void EComp_enableDAC(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_CPDACCTL) |= CPDACEN;
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}
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void EComp_disableDAC(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_CPDACCTL) &= ~CPDACEN;
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}
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#endif
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//*****************************************************************************
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//
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//! Close the doxygen group for ecomp_api
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//! @}
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//
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//*****************************************************************************
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