71 lines
2.9 KiB
C
71 lines
2.9 KiB
C
/*
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* @brief GPIO Group Interrupt Registers and control functions
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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 licensor 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 "gpiogrpint_001.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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/* GPIO Group Interrupt Pin Add to Group */
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void IP_GPIOGP_IntPinAdd(IP_GPIOGROUPINT_001_Type *pGPIOGPINT, uint8_t PortNum, uint8_t PinNum, bool ActiveMode)
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{
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volatile uint32_t wordDat;
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bool pinstate;
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/* configure to PORT_ENA register */
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pGPIOGPINT->PORT_ENA[PortNum] |= (1<<PinNum);
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/* configure to PORT_POL */
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wordDat = pGPIOGPINT->PORT_POL[PortNum];
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pinstate = (bool) (((wordDat>>PinNum)&0x01) != 0);
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if (pinstate != ActiveMode) {
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if (ActiveMode == true) { /* active HIGH */
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wordDat |= (1<<PinNum);
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} else { /* active LOW */
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wordDat &= ~(1<<PinNum);
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}
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pGPIOGPINT->PORT_POL[PortNum] = wordDat;
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}
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}
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