lpc-field

lpc17xx_gpio.c (24336B)

---

 /**********************************************************************
 * $Id$		lpc17xx_gpio.c				2010-05-21
 *//**
 * @file		lpc17xx_gpio.c
 * @brief	Contains all functions support for GPIO firmware
 * 			library on LPC17xx
 * @version	2.0
 * @date		21. May. 2010
 * @author	NXP MCU SW Application Team
 *
 * Copyright(C) 2010, NXP Semiconductor
 * All rights reserved.
 *
 ***********************************************************************
 * Software that is described herein is for illustrative purposes only
 * which provides customers with programming information regarding the
 * products. This software is supplied "AS IS" without any warranties.
 * NXP Semiconductors assumes no responsibility or liability for the
 * use of the software, conveys no license or title under any patent,
 * copyright, or mask work right to the product. NXP Semiconductors
 * reserves the right to make changes in the software without
 * notification. NXP Semiconductors also make no representation or
 * warranty that such application will be suitable for the specified
 * use without further testing or modification.
 * Permission to use, copy, modify, and distribute this software and its
 * documentation is hereby granted, under NXP Semiconductors'
 * relevant copyright in the software, without fee, provided that it
 * is used in conjunction with NXP Semiconductors microcontrollers.  This
 * copyright, permission, and disclaimer notice must appear in all copies of
 * this code.
 **********************************************************************/
 
 /* Peripheral group ----------------------------------------------------------- */
 /** @addtogroup GPIO
  * @{
  */
 
 /* Includes ------------------------------------------------------------------- */
 #include "lpc17xx_gpio.h"
 
 /* If this source file built with example, the LPC17xx FW library configuration
  * file in each example directory ("lpc17xx_libcfg.h") must be included,
  * otherwise the default FW library configuration file must be included instead
  */
 #ifdef __BUILD_WITH_EXAMPLE__
 #include "lpc17xx_libcfg.h"
 #else
 #include "lpc17xx_libcfg_default.h"
 #endif /* __BUILD_WITH_EXAMPLE__ */
 
 
 #ifdef _GPIO
 
 /* Private Functions ---------------------------------------------------------- */
 
 static LPC_GPIO_TypeDef *GPIO_GetPointer(uint8_t portNum);
 static GPIO_HalfWord_TypeDef *FIO_HalfWordGetPointer(uint8_t portNum);
 static GPIO_Byte_TypeDef *FIO_ByteGetPointer(uint8_t portNum);
 
 /*********************************************************************//**
  * @brief		Get pointer to GPIO peripheral due to GPIO port
  * @param[in]	portNum		Port Number value, should be in range from 0 to 4.
  * @return		Pointer to GPIO peripheral
  **********************************************************************/
 static LPC_GPIO_TypeDef *GPIO_GetPointer(uint8_t portNum)
 {
 	LPC_GPIO_TypeDef *pGPIO = NULL;
 
 	switch (portNum) {
 	case 0:
 		pGPIO = LPC_GPIO0;
 		break;
 	case 1:
 		pGPIO = LPC_GPIO1;
 		break;
 	case 2:
 		pGPIO = LPC_GPIO2;
 		break;
 	case 3:
 		pGPIO = LPC_GPIO3;
 		break;
 	case 4:
 		pGPIO = LPC_GPIO4;
 		break;
 	default:
 		break;
 	}
 
 	return pGPIO;
 }
 
 /*********************************************************************//**
  * @brief		Get pointer to FIO peripheral in halfword accessible style
  * 				due to FIO port
  * @param[in]	portNum		Port Number value, should be in range from 0 to 4.
  * @return		Pointer to FIO peripheral
  **********************************************************************/
 static GPIO_HalfWord_TypeDef *FIO_HalfWordGetPointer(uint8_t portNum)
 {
 	GPIO_HalfWord_TypeDef *pFIO = NULL;
 
 	switch (portNum) {
 	case 0:
 		pFIO = GPIO0_HalfWord;
 		break;
 	case 1:
 		pFIO = GPIO1_HalfWord;
 		break;
 	case 2:
 		pFIO = GPIO2_HalfWord;
 		break;
 	case 3:
 		pFIO = GPIO3_HalfWord;
 		break;
 	case 4:
 		pFIO = GPIO4_HalfWord;
 		break;
 	default:
 		break;
 	}
 
 	return pFIO;
 }
 
 /*********************************************************************//**
  * @brief		Get pointer to FIO peripheral in byte accessible style
  * 				due to FIO port
  * @param[in]	portNum		Port Number value, should be in range from 0 to 4.
  * @return		Pointer to FIO peripheral
  **********************************************************************/
 static GPIO_Byte_TypeDef *FIO_ByteGetPointer(uint8_t portNum)
 {
 	GPIO_Byte_TypeDef *pFIO = NULL;
 
 	switch (portNum) {
 	case 0:
 		pFIO = GPIO0_Byte;
 		break;
 	case 1:
 		pFIO = GPIO1_Byte;
 		break;
 	case 2:
 		pFIO = GPIO2_Byte;
 		break;
 	case 3:
 		pFIO = GPIO3_Byte;
 		break;
 	case 4:
 		pFIO = GPIO4_Byte;
 		break;
 	default:
 		break;
 	}
 
 	return pFIO;
 }
 
 /* End of Private Functions --------------------------------------------------- */
 
 
 /* Public Functions ----------------------------------------------------------- */
 /** @addtogroup GPIO_Public_Functions
  * @{
  */
 
 
 /* GPIO ------------------------------------------------------------------------------ */
 
 /*********************************************************************//**
  * @brief		Set Direction for GPIO port.
  * @param[in]	portNum		Port Number value, should be in range from 0 to 4
  * @param[in]	bitValue	Value that contains all bits to set direction,
  * 							in range from 0 to 0xFFFFFFFF.
  * 							example: value 0x5 to set direction for bit 0 and bit 1.
  * @param[in]	dir			Direction value, should be:
  * 							- 0: Input.
  * 							- 1: Output.
  * @return		None
  *
  * Note: All remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void GPIO_SetDir(uint8_t portNum, uint32_t bitValue, uint8_t dir)
 {
 	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
 
 	if (pGPIO != NULL) {
 		// Enable Output
 		if (dir) {
 			pGPIO->FIODIR |= bitValue;
 		}
 		// Enable Input
 		else {
 			pGPIO->FIODIR &= ~bitValue;
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Set Value for bits that have output direction on GPIO port.
  * @param[in]	portNum		Port number value, should be in range from 0 to 4
  * @param[in]	bitValue	Value that contains all bits on GPIO to set,
  * 							in range from 0 to 0xFFFFFFFF.
  * 							example: value 0x5 to set bit 0 and bit 1.
  * @return		None
  *
  * Note:
  * - For all bits that has been set as input direction, this function will
  * not effect.
  * - For all remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void GPIO_SetValue(uint8_t portNum, uint32_t bitValue)
 {
 	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
 
 	if (pGPIO != NULL) {
 		pGPIO->FIOSET = bitValue;
 	}
 }
 
 /*********************************************************************//**
  * @brief		Clear Value for bits that have output direction on GPIO port.
  * @param[in]	portNum		Port number value, should be in range from 0 to 4
  * @param[in]	bitValue	Value that contains all bits on GPIO to clear,
  * 							in range from 0 to 0xFFFFFFFF.
  * 							example: value 0x5 to clear bit 0 and bit 1.
  * @return		None
  *
  * Note:
  * - For all bits that has been set as input direction, this function will
  * not effect.
  * - For all remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void GPIO_ClearValue(uint8_t portNum, uint32_t bitValue)
 {
 	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
 
 	if (pGPIO != NULL) {
 		pGPIO->FIOCLR = bitValue;
 	}
 }
 
 /*********************************************************************//**
  * @brief		Read Current state on port pin that have input direction of GPIO
  * @param[in]	portNum		Port number to read value, in range from 0 to 4
  * @return		Current value of GPIO port.
  *
  * Note: Return value contain state of each port pin (bit) on that GPIO regardless
  * its direction is input or output.
  **********************************************************************/
 uint32_t GPIO_ReadValue(uint8_t portNum)
 {
 	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
 
 	if (pGPIO != NULL) {
 		return pGPIO->FIOPIN;
 	}
 
 	return (0);
 }
 
 /*********************************************************************//**
  * @brief		Enable GPIO interrupt (just used for P0.0-P0.30, P2.0-P2.13)
  * @param[in]	portNum		Port number to read value, should be: 0 or 2
  * @param[in]	bitValue	Value that contains all bits on GPIO to enable,
  * 							in range from 0 to 0xFFFFFFFF.
  * @param[in]	edgeState	state of edge, should be:
  * 							- 0: Rising edge
  * 							- 1: Falling edge
  * @return		None
  **********************************************************************/
 void GPIO_IntCmd(uint8_t portNum, uint32_t bitValue, uint8_t edgeState)
 {
 	if((portNum == 0)&&(edgeState == 0))
 		LPC_GPIOINT->IO0IntEnR = bitValue;
 	else if ((portNum == 2)&&(edgeState == 0))
 		LPC_GPIOINT->IO2IntEnR = bitValue;
 	else if ((portNum == 0)&&(edgeState == 1))
 		LPC_GPIOINT->IO0IntEnF = bitValue;
 	else if ((portNum == 2)&&(edgeState == 1))
 		LPC_GPIOINT->IO2IntEnF = bitValue;
 	else
 		//Error
 		while(1);
 }
 
 /*********************************************************************//**
  * @brief		Get GPIO Interrupt Status (just used for P0.0-P0.30, P2.0-P2.13)
  * @param[in]	portNum		Port number to read value, should be: 0 or 2
  * @param[in]	pinNum		Pin number, should be: 0..30(with port 0) and 0..13
  * 							(with port 2)
  * @param[in]	edgeState	state of edge, should be:
  * 							- 0: Rising edge
  * 							- 1: Falling edge
  * @return		Bool	could be:
  * 						- ENABLE: Interrupt has been generated due to a rising
  * 								edge on P0.0
  * 						- DISABLE: A rising edge has not been detected on P0.0
  **********************************************************************/
 FunctionalState GPIO_GetIntStatus(uint8_t portNum, uint32_t pinNum, uint8_t edgeState)
 {
 	if((portNum == 0) && (edgeState == 0))//Rising Edge
 		return ((FunctionalState)(((LPC_GPIOINT->IO0IntStatR)>>pinNum)& 0x1));
 	else if ((portNum == 2) && (edgeState == 0))
 		return ((FunctionalState)(((LPC_GPIOINT->IO2IntStatR)>>pinNum)& 0x1));
 	else if ((portNum == 0) && (edgeState == 1))//Falling Edge
 		return ((FunctionalState)(((LPC_GPIOINT->IO0IntStatF)>>pinNum)& 0x1));
 	else if ((portNum == 2) && (edgeState == 1))
 		return ((FunctionalState)(((LPC_GPIOINT->IO2IntStatF)>>pinNum)& 0x1));
 	else
 		//Error
 		while(1);
 }
 /*********************************************************************//**
  * @brief		Clear GPIO interrupt (just used for P0.0-P0.30, P2.0-P2.13)
  * @param[in]	portNum		Port number to read value, should be: 0 or 2
  * @param[in]	bitValue	Value that contains all bits on GPIO to enable,
  * 							in range from 0 to 0xFFFFFFFF.
  * @return		None
  **********************************************************************/
 void GPIO_ClearInt(uint8_t portNum, uint32_t bitValue)
 {
 	if(portNum == 0)
 		LPC_GPIOINT->IO0IntClr = bitValue;
 	else if (portNum == 2)
 		LPC_GPIOINT->IO2IntClr = bitValue;
 	else
 		//Invalid portNum
 		while(1);
 }
 
 /* FIO word accessible ----------------------------------------------------------------- */
 /* Stub function for FIO (word-accessible) style */
 
 /**
  * @brief The same with GPIO_SetDir()
  */
 void FIO_SetDir(uint8_t portNum, uint32_t bitValue, uint8_t dir)
 {
 	GPIO_SetDir(portNum, bitValue, dir);
 }
 
 /**
  * @brief The same with GPIO_SetValue()
  */
 void FIO_SetValue(uint8_t portNum, uint32_t bitValue)
 {
 	GPIO_SetValue(portNum, bitValue);
 }
 
 /**
  * @brief The same with GPIO_ClearValue()
  */
 void FIO_ClearValue(uint8_t portNum, uint32_t bitValue)
 {
 	GPIO_ClearValue(portNum, bitValue);
 }
 
 /**
  * @brief The same with GPIO_ReadValue()
  */
 uint32_t FIO_ReadValue(uint8_t portNum)
 {
 	return (GPIO_ReadValue(portNum));
 }
 
 /**
  * @brief The same with GPIO_IntCmd()
  */
 void FIO_IntCmd(uint8_t portNum, uint32_t bitValue, uint8_t edgeState)
 {
 	GPIO_IntCmd(portNum, bitValue, edgeState);
 }
 
 /**
  * @brief The same with GPIO_GetIntStatus()
  */
 FunctionalState FIO_GetIntStatus(uint8_t portNum, uint32_t pinNum, uint8_t edgeState)
 {
 	return (GPIO_GetIntStatus(portNum, pinNum, edgeState));
 }
 
 /**
  * @brief The same with GPIO_ClearInt()
  */
 void FIO_ClearInt(uint8_t portNum, uint32_t bitValue)
 {
 	GPIO_ClearInt(portNum, bitValue);
 }
 /*********************************************************************//**
  * @brief		Set mask value for bits in FIO port
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	bitValue	Value that contains all bits in to set,
  * 							in range from 0 to 0xFFFFFFFF.
  * @param[in]	maskValue	Mask value contains state value for each bit:
  * 							- 0: not mask.
  * 							- 1: mask.
  * @return		None
  *
  * Note:
  * - All remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  * - After executing this function, in mask register, value '0' on each bit
  * enables an access to the corresponding physical pin via a read or write access,
  * while value '1' on bit (masked) that corresponding pin will not be changed
  * with write access and if read, will not be reflected in the updated pin.
  **********************************************************************/
 void FIO_SetMask(uint8_t portNum, uint32_t bitValue, uint8_t maskValue)
 {
 	LPC_GPIO_TypeDef *pFIO = GPIO_GetPointer(portNum);
 	if(pFIO != NULL) {
 		// Mask
 		if (maskValue){
 			pFIO->FIOMASK |= bitValue;
 		}
 		// Un-mask
 		else {
 			pFIO->FIOMASK &= ~bitValue;
 		}
 	}
 }
 
 
 /* FIO halfword accessible ------------------------------------------------------------- */
 
 /*********************************************************************//**
  * @brief		Set direction for FIO port in halfword accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
  * @param[in]	bitValue	Value that contains all bits in to set direction,
  * 							in range from 0 to 0xFFFF.
  * @param[in]	dir			Direction value, should be:
  * 							- 0: Input.
  * 							- 1: Output.
  * @return		None
  *
  * Note: All remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void FIO_HalfWordSetDir(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue, uint8_t dir)
 {
 	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
 	if(pFIO != NULL) {
 		// Output direction
 		if (dir) {
 			// Upper
 			if(halfwordNum) {
 				pFIO->FIODIRU |= bitValue;
 			}
 			// lower
 			else {
 				pFIO->FIODIRL |= bitValue;
 			}
 		}
 		// Input direction
 		else {
 			// Upper
 			if(halfwordNum) {
 				pFIO->FIODIRU &= ~bitValue;
 			}
 			// lower
 			else {
 				pFIO->FIODIRL &= ~bitValue;
 			}
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Set mask value for bits in FIO port in halfword accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
  * @param[in]	bitValue	Value that contains all bits in to set,
  * 							in range from 0 to 0xFFFF.
  * @param[in]	maskValue	Mask value contains state value for each bit:
  * 					- 0: not mask.
  * 					- 1: mask.
  * @return		None
  *
  * Note:
  * - All remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  * - After executing this function, in mask register, value '0' on each bit
  * enables an access to the corresponding physical pin via a read or write access,
  * while value '1' on bit (masked) that corresponding pin will not be changed
  * with write access and if read, will not be reflected in the updated pin.
  **********************************************************************/
 void FIO_HalfWordSetMask(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue, uint8_t maskValue)
 {
 	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
 	if(pFIO != NULL) {
 		// Mask
 		if (maskValue){
 			// Upper
 			if(halfwordNum) {
 				pFIO->FIOMASKU |= bitValue;
 			}
 			// lower
 			else {
 				pFIO->FIOMASKL |= bitValue;
 			}
 		}
 		// Un-mask
 		else {
 			// Upper
 			if(halfwordNum) {
 				pFIO->FIOMASKU &= ~bitValue;
 			}
 			// lower
 			else {
 				pFIO->FIOMASKL &= ~bitValue;
 			}
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Set bits for FIO port in halfword accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
  * @param[in]	bitValue	Value that contains all bits in to set,
  * 							in range from 0 to 0xFFFF.
  * @return		None
  *
  * Note:
  * - For all bits that has been set as input direction, this function will
  * not effect.
  * - For all remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void FIO_HalfWordSetValue(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue)
 {
 	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
 	if(pFIO != NULL) {
 		// Upper
 		if(halfwordNum) {
 			pFIO->FIOSETU = bitValue;
 		}
 		// lower
 		else {
 			pFIO->FIOSETL = bitValue;
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Clear bits for FIO port in halfword accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
  * @param[in]	bitValue	Value that contains all bits in to clear,
  * 							in range from 0 to 0xFFFF.
  * @return		None
  *
  * Note:
  * - For all bits that has been set as input direction, this function will
  * not effect.
  * - For all remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void FIO_HalfWordClearValue(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue)
 {
 	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
 	if(pFIO != NULL) {
 		// Upper
 		if(halfwordNum) {
 			pFIO->FIOCLRU = bitValue;
 		}
 		// lower
 		else {
 			pFIO->FIOCLRL = bitValue;
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Read Current state on port pin that have input direction of GPIO
  * 				in halfword accessible style.
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
  * @return		Current value of FIO port pin of specified halfword.
  * Note: Return value contain state of each port pin (bit) on that FIO regardless
  * its direction is input or output.
  **********************************************************************/
 uint16_t FIO_HalfWordReadValue(uint8_t portNum, uint8_t halfwordNum)
 {
 	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
 	if(pFIO != NULL) {
 		// Upper
 		if(halfwordNum) {
 			return (pFIO->FIOPINU);
 		}
 		// lower
 		else {
 			return (pFIO->FIOPINL);
 		}
 	}
 	return (0);
 }
 
 
 /* FIO Byte accessible ------------------------------------------------------------ */
 
 /*********************************************************************//**
  * @brief		Set direction for FIO port in byte accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
  * @param[in]	bitValue	Value that contains all bits in to set direction,
  * 							in range from 0 to 0xFF.
  * @param[in]	dir			Direction value, should be:
  * 							- 0: Input.
  * 							- 1: Output.
  * @return		None
  *
  * Note: All remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void FIO_ByteSetDir(uint8_t portNum, uint8_t byteNum, uint8_t bitValue, uint8_t dir)
 {
 	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
 	if(pFIO != NULL) {
 		// Output direction
 		if (dir) {
 			if (byteNum <= 3) {
 				pFIO->FIODIR[byteNum] |= bitValue;
 			}
 		}
 		// Input direction
 		else {
 			if (byteNum <= 3) {
 				pFIO->FIODIR[byteNum] &= ~bitValue;
 			}
 		}
 	}
 }
 
 /*********************************************************************//**
  * @brief		Set mask value for bits in FIO port in byte accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
  * @param[in]	bitValue	Value that contains all bits in to set mask,
  * 							in range from 0 to 0xFF.
  * @param[in]	maskValue	Mask value contains state value for each bit:
  * 							- 0: not mask.
  * 							- 1: mask.
  * @return		None
  *
  * Note:
  * - All remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  * - After executing this function, in mask register, value '0' on each bit
  * enables an access to the corresponding physical pin via a read or write access,
  * while value '1' on bit (masked) that corresponding pin will not be changed
  * with write access and if read, will not be reflected in the updated pin.
  **********************************************************************/
 void FIO_ByteSetMask(uint8_t portNum, uint8_t byteNum, uint8_t bitValue, uint8_t maskValue)
 {
 	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
 	if(pFIO != NULL) {
 		// Mask
 		if (maskValue) {
 			if (byteNum <= 3) {
 				pFIO->FIOMASK[byteNum] |= bitValue;
 			}
 		}
 		// Un-mask
 		else {
 			if (byteNum <= 3) {
 				pFIO->FIOMASK[byteNum] &= ~bitValue;
 			}
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Set bits for FIO port in byte accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
  * @param[in]	bitValue	Value that contains all bits in to set,
  * 							in range from 0 to 0xFF.
  * @return		None
  *
  * Note:
  * - For all bits that has been set as input direction, this function will
  * not effect.
  * - For all remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void FIO_ByteSetValue(uint8_t portNum, uint8_t byteNum, uint8_t bitValue)
 {
 	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
 	if (pFIO != NULL) {
 		if (byteNum <= 3){
 			pFIO->FIOSET[byteNum] = bitValue;
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Clear bits for FIO port in byte accessible style
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
  * @param[in]	bitValue	Value that contains all bits in to clear,
  * 							in range from 0 to 0xFF.
  * @return		None
  *
  * Note:
  * - For all bits that has been set as input direction, this function will
  * not effect.
  * - For all remaining bits that are not activated in bitValue (value '0')
  * will not be effected by this function.
  **********************************************************************/
 void FIO_ByteClearValue(uint8_t portNum, uint8_t byteNum, uint8_t bitValue)
 {
 	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
 	if (pFIO != NULL) {
 		if (byteNum <= 3){
 			pFIO->FIOCLR[byteNum] = bitValue;
 		}
 	}
 }
 
 
 /*********************************************************************//**
  * @brief		Read Current state on port pin that have input direction of GPIO
  * 				in byte accessible style.
  * @param[in]	portNum		Port number, in range from 0 to 4
  * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
  * @return		Current value of FIO port pin of specified byte part.
  * Note: Return value contain state of each port pin (bit) on that FIO regardless
  * its direction is input or output.
  **********************************************************************/
 uint8_t FIO_ByteReadValue(uint8_t portNum, uint8_t byteNum)
 {
 	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
 	if (pFIO != NULL) {
 		if (byteNum <= 3){
 			return (pFIO->FIOPIN[byteNum]);
 		}
 	}
 	return (0);
 }
 
 /**
  * @}
  */
 
 #endif /* _GPIO */
 
 /**
  * @}
  */
 
 /* --------------------------------- End Of File ------------------------------ */