82 lines
3.4 KiB
C
82 lines
3.4 KiB
C
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/*
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* @brief LPC8xx Pin Interrupt and Pattern Match driver
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2012
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licenser disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#include "chip.h"
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/*****************************************************************************
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* Private types/enumerations/variables
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****************************************************************************/
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/*****************************************************************************
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* Public types/enumerations/variables
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****************************************************************************/
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/*****************************************************************************
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* Private functions
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****************************************************************************/
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/*****************************************************************************
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* Public functions
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****************************************************************************/
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/* Set source for pattern match engine */
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void Chip_PININT_SetPatternMatchSrc(LPC_PININT_T *pPININT, uint8_t chan, Chip_PININT_BITSLICE_T slice)
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{
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uint32_t pmsrc_reg;
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/* Source source for pattern matching */
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pmsrc_reg = pPININT->PMSRC & ~((PININT_SRC_BITSOURCE_MASK << (PININT_SRC_BITSOURCE_START + (slice * 3)))
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| PININT_PMSRC_RESERVED);
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pPININT->PMSRC = pmsrc_reg | (chan << (PININT_SRC_BITSOURCE_START + (slice * 3)));
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}
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/* Configure Pattern match engine */
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void Chip_PININT_SetPatternMatchConfig(LPC_PININT_T *pPININT, Chip_PININT_BITSLICE_T slice,
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Chip_PININT_BITSLICE_CFG_T slice_cfg, bool end_point)
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{
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uint32_t pmcfg_reg;
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/* Configure bit slice configuration */
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pmcfg_reg = pPININT->PMCFG & ~((PININT_SRC_BITCFG_MASK << (PININT_SRC_BITCFG_START + (slice * 3)))
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| PININT_PMCFG_RESERVED);
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pPININT->PMCFG = pmcfg_reg | (slice_cfg << (PININT_SRC_BITCFG_START + (slice * 3)));
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/* If end point is true, enable the bits */
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if (end_point == true)
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{
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/* By default slice 7 is final component */
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if (slice != PININTBITSLICE7)
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{
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pPININT->PMCFG = (0x1 << slice) | (pPININT->PMCFG & ~PININT_PMCFG_RESERVED);
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}
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}
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}
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