356 lines
9.6 KiB
C
356 lines
9.6 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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/* Standard Includes */
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#include <stdint.h>
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/* DriverLib Includes */
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#include <gpio.h>
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#include <debug.h>
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#include <interrupt.h>
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static const uint32_t GPIO_PORT_TO_INT[] =
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{ 0x00,
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INT_PORT1,
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INT_PORT2,
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INT_PORT3,
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INT_PORT4,
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INT_PORT5,
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INT_PORT6 };
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static const uint32_t GPIO_PORT_TO_BASE[] =
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{ 0x00,
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(uint32_t)P1,
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(uint32_t)P1+1,
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(uint32_t)P3,
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(uint32_t)P3+1,
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(uint32_t)P5,
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(uint32_t)P5+1,
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(uint32_t)P7,
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(uint32_t)P7+1,
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(uint32_t)P9,
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(uint32_t)P9+1,
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(uint32_t)PJ
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};
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void GPIO_setAsOutputPin(uint_fast8_t selectedPort, uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PASEL0) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PADIR) |= selectedPins;
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}
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void GPIO_setAsInputPin(uint_fast8_t selectedPort, uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PASEL0) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PADIR) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PAREN) &= ~selectedPins;
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}
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void GPIO_setAsPeripheralModuleFunctionOutputPin(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins, uint_fast8_t mode)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PADIR) |= selectedPins;
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switch (mode)
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{
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case GPIO_PRIMARY_MODULE_FUNCTION:
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HWREG16(baseAddress + OFS_LIB_PASEL0) |= selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) &= ~selectedPins;
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break;
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case GPIO_SECONDARY_MODULE_FUNCTION:
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HWREG16(baseAddress + OFS_LIB_PASEL0) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) |= selectedPins;
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break;
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case GPIO_TERTIARY_MODULE_FUNCTION:
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HWREG16(baseAddress + OFS_LIB_PASEL0) |= selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) |= selectedPins;
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break;
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}
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}
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void GPIO_setAsPeripheralModuleFunctionInputPin(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins, uint_fast8_t mode)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PADIR) &= ~selectedPins;
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switch (mode)
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{
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case GPIO_PRIMARY_MODULE_FUNCTION:
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HWREG16(baseAddress + OFS_LIB_PASEL0) |= selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) &= ~selectedPins;
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break;
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case GPIO_SECONDARY_MODULE_FUNCTION:
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HWREG16(baseAddress + OFS_LIB_PASEL0) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) |= selectedPins;
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break;
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case GPIO_TERTIARY_MODULE_FUNCTION:
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HWREG16(baseAddress + OFS_LIB_PASEL0) |= selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) |= selectedPins;
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break;
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}
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}
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void GPIO_setOutputHighOnPin(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PAOUT) |= selectedPins;
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}
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void GPIO_setOutputLowOnPin(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PAOUT) &= ~selectedPins;
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}
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void GPIO_toggleOutputOnPin(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PAOUT) ^= selectedPins;
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}
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void GPIO_setAsInputPinWithPullDownResistor(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PASEL0) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PADIR) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PAREN) |= selectedPins;
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HWREG16(baseAddress + OFS_LIB_PAOUT) &= ~selectedPins;
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}
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void GPIO_setAsInputPinWithPullUpResistor(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PASEL0) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PASEL1) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PADIR) &= ~selectedPins;
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HWREG16(baseAddress + OFS_LIB_PAREN) |= selectedPins;
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HWREG16(baseAddress + OFS_LIB_PAOUT) |= selectedPins;
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}
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uint8_t GPIO_getInputPinValue(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint_fast16_t inputPinValue;
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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inputPinValue = HWREG16(baseAddress + OFS_LIB_PAIN) & (selectedPins);
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if (inputPinValue > 0)
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return GPIO_INPUT_PIN_HIGH;
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return GPIO_INPUT_PIN_LOW;
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}
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void GPIO_enableInterrupt(uint_fast8_t selectedPort, uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PAIE) |= selectedPins;
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}
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void GPIO_disableInterrupt(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PAIE) &= ~selectedPins;
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}
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uint_fast16_t GPIO_getInterruptStatus(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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return HWREG16(baseAddress + OFS_LIB_PAIFG) & selectedPins;
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}
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void GPIO_clearInterruptFlag(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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HWREG16(baseAddress + OFS_LIB_PAIFG) &= ~selectedPins;
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}
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void GPIO_interruptEdgeSelect(uint_fast8_t selectedPort,
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uint_fast16_t selectedPins, uint_fast8_t edgeSelect)
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{
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uint32_t baseAddress = GPIO_PORT_TO_BASE[selectedPort];
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if (GPIO_LOW_TO_HIGH_TRANSITION == edgeSelect)
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HWREG16(baseAddress + OFS_LIB_PAIES) &= ~selectedPins;
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else
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HWREG16(baseAddress + OFS_LIB_PAIES) |= selectedPins;
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}
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uint_fast16_t GPIO_getEnabledInterruptStatus(uint_fast8_t selectedPort)
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{
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uint_fast16_t pendingInts;
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uint32_t baseAddr;
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pendingInts = GPIO_getInterruptStatus(selectedPort, 0xFFFF);
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baseAddr = GPIO_PORT_TO_BASE[selectedPort];
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ASSERT(baseAddr != 0xFFFF);
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switch (selectedPort)
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{
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case GPIO_PORT_P1:
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case GPIO_PORT_P3:
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case GPIO_PORT_P5:
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case GPIO_PORT_P7:
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case GPIO_PORT_P9:
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return (HWREG8(baseAddr + OFS_LIB_P1IE) & pendingInts);
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case GPIO_PORT_P2:
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case GPIO_PORT_P4:
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case GPIO_PORT_P6:
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case GPIO_PORT_P8:
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case GPIO_PORT_P10:
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return (HWREG8(baseAddr + OFS_LIB_P2IE) & pendingInts);
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case GPIO_PORT_PJ:
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return (HWREG16(baseAddr + OFS_LIB_PAIE) & pendingInts);
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default:
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return 0;
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}
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}
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void GPIO_setDriveStrengthHigh(uint_fast8_t selectedPort,
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uint_fast8_t selectedPins)
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{
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uint32_t baseAddr;
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baseAddr = GPIO_PORT_TO_BASE[selectedPort];
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HWREG8(baseAddr + OFS_LIB_PADS) |= selectedPins;
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}
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void GPIO_setDriveStrengthLow(uint_fast8_t selectedPort,
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uint_fast8_t selectedPins)
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{
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uint32_t baseAddr;
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baseAddr = GPIO_PORT_TO_BASE[selectedPort];
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HWREG8(baseAddr + OFS_LIB_PADS) &= ~selectedPins;
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}
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void GPIO_registerInterrupt(uint_fast8_t selectedPort, void (*intHandler)(void))
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{
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uint32_t wPortInt;
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wPortInt = GPIO_PORT_TO_INT[selectedPort];
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//
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// Register the interrupt handler, returning an error if an error occurs.
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//
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Interrupt_registerInterrupt(wPortInt, intHandler);
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//
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// Enable the system control interrupt.
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//
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Interrupt_enableInterrupt(wPortInt);
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}
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void GPIO_unregisterInterrupt(uint_fast8_t selectedPort)
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{
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uint32_t wPortInt;
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wPortInt = GPIO_PORT_TO_INT[selectedPort];
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//
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// Disable the interrupt.
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//
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Interrupt_disableInterrupt(wPortInt);
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//
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// Unregister the interrupt handler.
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//
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Interrupt_unregisterInterrupt(wPortInt);
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}
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