我们客户使用MSP432P401R，目前对于芯片内部的I/O口引脚类型存在疑问，希望解答一下I/O引脚是推挽、开漏还是单纯的上下拉输入输出。
这个主要是影响到客户外围电路设计。因为如果MCU的I/O口是推挽输出，客户外部电路加入需要一个不同电压等级的功能，引脚会被强制限制在3.3V或0V,如果是开漏输出，客户通过外部上下拉电阻可能会获取一个更高范围的电压。客户希望能解答一下MCU内部，I/O口的输出电路具体实现方案。
希望获取您的帮助。
Kevin Chen
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
我们客户使用MSP432P401R，目前对于芯片内部的I/O口引脚类型存在疑问，希望解答一下I/O引脚是推挽、开漏还是单纯的上下拉输入输出。
这个主要是影响到客户外围电路设计。因为如果MCU的I/O口是推挽输出，客户外部电路加入需要一个不同电压等级的功能，引脚会被强制限制在3.3V或0V,如果是开漏输出，客户通过外部上下拉电阻可能会获取一个更高范围的电压。客户希望能解答一下MCU内部，I/O口的输出电路具体实现方案。
希望获取您的帮助。
Kevin Chen
不具备推挽开漏，只有配置输入输出，以及配置上拉下拉功能，IO功能基本上跟430的类似。
这个确认可以参考头文件。
/*
* -------------------------------------------
* MSP432 DriverLib - v3_21_00_05
* -------------------------------------------
*
* --COPYRIGHT--,BSD,BSD
* Copyright (c) 2016, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* --/COPYRIGHT--*/
#ifndef __GPIO_H__
#define __GPIO_H__
//*****************************************************************************
//
//! \addtogroup gpio_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
#include <msp.h>
#include <stdint.h>
#define GPIO_PORT_P1 1
#define GPIO_PORT_P2 2
#define GPIO_PORT_P3 3
#define GPIO_PORT_P4 4
#define GPIO_PORT_P5 5
#define GPIO_PORT_P6 6
#define GPIO_PORT_P7 7
#define GPIO_PORT_P8 8
#define GPIO_PORT_P9 9
#define GPIO_PORT_P10 10
#define GPIO_PORT_PA 1
#define GPIO_PORT_PB 3
#define GPIO_PORT_PC 5
#define GPIO_PORT_PD 7
#define GPIO_PORT_PE 9
#define GPIO_PORT_PJ 11
#define GPIO_PIN0 (0x0001)
#define GPIO_PIN1 (0x0002)
#define GPIO_PIN2 (0x0004)
#define GPIO_PIN3 (0x0008)
#define GPIO_PIN4 (0x0010)
#define GPIO_PIN5 (0x0020)
#define GPIO_PIN6 (0x0040)
#define GPIO_PIN7 (0x0080)
#define GPIO_PIN8 (0x0100)
#define GPIO_PIN9 (0x0200)
#define GPIO_PIN10 (0x0400)
#define GPIO_PIN11 (0x0800)
#define GPIO_PIN12 (0x1000)
#define GPIO_PIN13 (0x2000)
#define GPIO_PIN14 (0x4000)
#define GPIO_PIN15 (0x8000)
#define PIN_ALL8 (0xFF)
#define PIN_ALL16 (0xFFFF)
#define GPIO_PRIMARY_MODULE_FUNCTION (0x01)
#define GPIO_SECONDARY_MODULE_FUNCTION (0x02)
#define GPIO_TERTIARY_MODULE_FUNCTION (0x03)
#define GPIO_HIGH_TO_LOW_TRANSITION (0x01)
#define GPIO_LOW_TO_HIGH_TRANSITION (0x00)
#define GPIO_INPUT_PIN_HIGH (0x01)
#define GPIO_INPUT_PIN_LOW (0x00)
//*****************************************************************************
//
// Prototypes for the APIs.
//
//*****************************************************************************
//*****************************************************************************
//
//! \brief This function configures the selected Pin as output pin
//!
//! This function selected pins on a selected port as output pins.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxDIR register and bits of \b PxSEL register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setAsOutputPin(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function configures the selected Pin as input pin
//!
//! This function selected pins on a selected port as input pins.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxDIR register, bits of \b PxREN register and bits of
//! \b PxSEL register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setAsInputPin(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function configures the peripheral module function in the
//! output direction for the selected pin for either primary, secondary or
//! ternary module function modes
//!
//! This function configures the peripheral module function in the output
//! direction for the selected pin for either primary, secondary or ternary
//! module function modes. Accepted values for mode are
//! GPIO_PRIMARY_MODULE_FUNCTION, GPIO_SECONDARY_MODULE_FUNCTION, and
//! GPIO_TERTIARY_MODULE_FUNCTION
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//! \param mode is the specified mode that the pin should be configured for the
//! module function.
//! Valid values are:
//! - \b GPIO_PRIMARY_MODULE_FUNCTION
//! - \b GPIO_SECONDARY_MODULE_FUNCTION
//! - \b GPIO_TERTIARY_MODULE_FUNCTION
//!
//! Modified bits of \b PxDIR register and bits of \b PxSEL register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setAsPeripheralModuleFunctionOutputPin(
uint_fast8_t selectedPort, uint_fast16_t selectedPins,
uint_fast8_t mode);
//*****************************************************************************
//
//! \brief This function configures the peripheral module function in the input
//! direction for the selected pin for either primary, secondary or ternary
//! module function modes.
//!
//! This function configures the peripheral module function in the input
//! direction for the selected pin for either primary, secondary or ternary
//! module function modes. Accepted values for mode are
//! GPIO_PRIMARY_MODULE_FUNCTION, GPIO_SECONDARY_MODULE_FUNCTION, and
//! GPIO_TERTIARY_MODULE_FUNCTION
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//! \param mode is the specified mode that the pin should be configured for the
//! module function.
//! Valid values are:
//! - \b GPIO_PRIMARY_MODULE_FUNCTION
//! - \b GPIO_SECONDARY_MODULE_FUNCTION
//! - \b GPIO_TERTIARY_MODULE_FUNCTION
//!
//! Modified bits of \b PxDIR register and bits of \b PxSEL register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setAsPeripheralModuleFunctionInputPin(
uint_fast8_t selectedPort, uint_fast16_t selectedPins,
uint_fast8_t mode);
//*****************************************************************************
//
//! \brief This function sets output HIGH on the selected Pin
//!
//! This function sets output HIGH on the selected port's pin.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxOUT register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setOutputHighOnPin(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function sets output LOW on the selected Pin
//!
//! This function sets output LOW on the selected port's pin.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setOutputLowOnPin(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function toggles the output on the selected Pin
//!
//! This function toggles the output on the selected port's pin.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxOUT register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_toggleOutputOnPin(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function sets the selected Pin in input Mode with Pull Down
//! resistor
//!
//! This function sets the selected Pin in input Mode with Pull Down resistor.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxDIR register, bits of \b PxOUT register and bits of
//! \b PxREN register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setAsInputPinWithPullDownResistor(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function sets the selected Pin in input Mode with Pull Up
//! resistor
//!
//! This function sets the selected Pin in input Mode with Pull Up resistor.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxDIR register, bits of \b PxOUT register and bits of
//! \b PxREN register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setAsInputPinWithPullUpResistor(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function gets the input value on the selected pin
//!
//! This function gets the input value on the selected pin.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Valid values are:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! \return One of the following:
//! - \b GPIO_INPUT_PIN_HIGH
//! - \b GPIO_INPUT_PIN_LOW
//! \n indicating the status of the pin
//
//*****************************************************************************
extern uint8_t GPIO_getInputPinValue(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function enables the port interrupt on the selected pin
//!
//! This function enables the port interrupt on the selected pin. Note that
//! only Port 1,2, A have this capability.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_PA
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxIE register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_enableInterrupt(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function disables the port interrupt on the selected pin
//!
//! This function disables the port interrupt on the selected pin. Note that
//! only Port 1,2, A have this capability.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_PA
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxIE register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_disableInterrupt(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function gets the interrupt status of the selected pin
//!
//! This function gets the interrupt status of the selected pin. Note that only
//! Port 1,2, A have this capability.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_PA
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! \return Logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//! \n indicating the interrupt status of the selected pins [Default:
//! 0]
//
//*****************************************************************************
extern uint_fast16_t GPIO_getInterruptStatus(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function clears the interrupt flag on the selected pin
//!
//! This function clears the interrupt flag on the selected pin. Note that only
//! Port 1,2,A have this capability.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_PA
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//!
//! Modified bits of \b PxIFG register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_clearInterruptFlag(uint_fast8_t selectedPort,
uint_fast16_t selectedPins);
//*****************************************************************************
//
//! \brief This function selects on what edge the port interrupt flag should be
//! set for a transition
//!
//! This function selects on what edge the port interrupt flag should be set
//! for a transition. Values for edgeSelect should be
//! GPIO_LOW_TO_HIGH_TRANSITION or GPIO_HIGH_TO_LOW_TRANSITION.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Mask value is the logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15
//! \param edgeSelect specifies what transition sets the interrupt flag
//! Valid values are:
//! - \b GPIO_HIGH_TO_LOW_TRANSITION
//! - \b GPIO_LOW_TO_HIGH_TRANSITION
//!
//! Modified bits of \b PxIES register.
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_interruptEdgeSelect(uint_fast8_t selectedPort,
uint_fast16_t selectedPins, uint_fast8_t edgeSelect);
//*****************************************************************************
//
//! \brief This function gets the interrupt status of the provided PIN and
//! masks it with the interrupts that are actually enabled. This is
//! useful for inside ISRs where the status of only the enabled
//! interrupts needs to be checked.
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1
//! - \b GPIO_PORT_P2
//! - \b GPIO_PORT_P3
//! - \b GPIO_PORT_P4
//! - \b GPIO_PORT_P5
//! - \b GPIO_PORT_P6
//! - \b GPIO_PORT_P7
//! - \b GPIO_PORT_P8
//! - \b GPIO_PORT_P9
//! - \b GPIO_PORT_P10
//! - \b GPIO_PORT_P11
//! - \b GPIO_PORT_PJ
//!
//! \return Logical OR of any of the following:
//! - \b GPIO_PIN0
//! - \b GPIO_PIN1
//! - \b GPIO_PIN2
//! - \b GPIO_PIN3
//! - \b GPIO_PIN4
//! - \b GPIO_PIN5
//! - \b GPIO_PIN6
//! - \b GPIO_PIN7
//! - \b GPIO_PIN8
//! - \b GPIO_PIN9
//! - \b GPIO_PIN10
//! - \b GPIO_PIN11
//! - \b GPIO_PIN12
//! - \b GPIO_PIN13
//! - \b GPIO_PIN14
//! - \b GPIO_PIN15,
//! - \b PIN_ALL8,
//! - \b PIN_ALL16
//! \n indicating the interrupt status of the selected pins [Default:
//! 0]
//
//*****************************************************************************
extern uint_fast16_t GPIO_getEnabledInterruptStatus(uint_fast8_t selectedPort);
//*****************************************************************************
//
//! Registers an interrupt handler for the port interrupt.
//!
//! \param selectedPort is the port to register the interrupt handler
//!
//! \param intHandler is a pointer to the function to be called when the port
//! interrupt occurs.
//!
//! This function registers the handler to be called when a port
//! interrupt occurs. This function enables the global interrupt in the
//! interrupt controller; specific GPIO interrupts must be enabled
//! via GPIO_enableInterrupt(). It is the interrupt handler's responsibility to
//! clear the interrupt source via GPIO_clearInterruptFlag().
//!
//! Clock System can generate interrupts when
//!
//! \sa Interrupt_registerInterrupt() for important information about
//! registering interrupt handlers.
//!
//! \return None.
//
//*****************************************************************************
extern void GPIO_registerInterrupt(uint_fast8_t selectedPort,
void (*intHandler)(void));
//*****************************************************************************
//
//! Unregisters the interrupt handler for the port.
//!
//! \param selectedPort is the port to unregister the interrupt handler
//!
//! This function unregisters the handler to be called when a port
//! interrupt occurs. This function also masks off the interrupt in the
//! interrupt controller so that the interrupt handler no longer is called.
//!
//! \sa Interrupt_registerInterrupt() for important information about
//! registering interrupt handlers.
//!
//! \return None.
//
//*****************************************************************************
extern void GPIO_unregisterInterrupt(uint_fast8_t selectedPort);
//*****************************************************************************
//
//! This function sets the drive strength to high for the selected port
//!
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1,
//! - \b GPIO_PORT_P2,
//! - \b GPIO_PORT_P3,
//! - \b GPIO_PORT_P4,
//! - \b GPIO_PORT_P5,
//! - \b GPIO_PORT_P6,
//! - \b GPIO_PORT_P7,
//! - \b GPIO_PORT_P8,
//! - \b GPIO_PORT_P9,
//! - \b GPIO_PORT_P10,
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Valid values are:
//! - \b GPIO_PIN0,
//! - \b GPIO_PIN1,
//! - \b GPIO_PIN2,
//! - \b GPIO_PIN3,
//! - \b GPIO_PIN4,
//! - \b GPIO_PIN5,
//! - \b GPIO_PIN6,
//! - \b GPIO_PIN7,
//! - \b GPIO_PIN8,
//! - \b PIN_ALL8,
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setDriveStrengthHigh(uint_fast8_t selectedPort,
uint_fast8_t selectedPins);
//*****************************************************************************
//
//! This function sets the drive strength to low for the selected port
//!
//!
//! \param selectedPort is the selected port.
//! Valid values are:
//! - \b GPIO_PORT_P1,
//! - \b GPIO_PORT_P2,
//! - \b GPIO_PORT_P3,
//! - \b GPIO_PORT_P4,
//! - \b GPIO_PORT_P5,
//! - \b GPIO_PORT_P6,
//! - \b GPIO_PORT_P7,
//! - \b GPIO_PORT_P8,
//! - \b GPIO_PORT_P9,
//! - \b GPIO_PORT_P10,
//! - \b GPIO_PORT_PJ
//! \param selectedPins is the specified pin in the selected port.
//! Valid values are:
//! - \b GPIO_PIN0,
//! - \b GPIO_PIN1,
//! - \b GPIO_PIN2,
//! - \b GPIO_PIN3,
//! - \b GPIO_PIN4,
//! - \b GPIO_PIN5,
//! - \b GPIO_PIN6,
//! - \b GPIO_PIN7,
//! - \b GPIO_PIN8,
//! - \b PIN_ALL8,
//!
//! \return None
//
//*****************************************************************************
extern void GPIO_setDriveStrengthLow(uint_fast8_t selectedPort,
uint_fast8_t selectedPins);
/* Backwards Compatibility Layer */
#define GPIO_selectInterruptEdge GPIO_interruptEdgeSelect
#define GPIO_clearInterrupt GPIO_clearInterruptFlag
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
#endif // __GPIO_H__