763 lines
24 KiB
C
763 lines
24 KiB
C
|
/**********************************************************************
|
||
|
|
* $Id$ 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 ------------------------------ */
|