LPC1700CMSIS_Lib - Date: March 20, 2011 This library is created f…

Users » frank26080115 » Code » LPC1700CMSIS_Lib

Date: March 20, 2011 This library is created from "LPC17xx CMSIS-Compliant Standard Peripheral Firmware Driver Library (GNU, Keil, IAR) (Jan 28, 2011)", available from NXP's website, under "All microcontrollers support documents" [[http://ics.nxp.com/support/documents/microcontrollers/?type=software]] You will need to follow [[/projects/libraries/svn/mbed/trunk/LPC1768/LPC17xx.h]] while using this library Examples provided here [[/users/frank26080115/programs/LPC1700CMSIS_Examples/]] The beautiful thing is that NXP does not place copyright protection on any of the files in here Only a few modifications are made to make it compile with the mbed online compiler, I fixed some warnings as well. This is untested as of March 20, 2011 Forum post about this library: [[/forum/mbed/topic/2030/]]

lpc17xx_exti.c@0:84d7747641aa, 2011-03-20 (annotated)

Committer:: frank26080115
Date:: Sun Mar 20 18:45:15 2011 +0000
Revision:: 0:84d7747641aa

Who changed what in which revision?

User	Revision	Line number	New contents of line
frank26080115	0:84d7747641aa	1	/**
frank26080115	0:84d7747641aa	2	* @file lpc17xx_exti.c
frank26080115	0:84d7747641aa	3	* @brief Contains all functions support for External interrupt firmware library on LPC17xx
frank26080115	0:84d7747641aa	4	* @version 3.0
frank26080115	0:84d7747641aa	5	* @date 18. June. 2010
frank26080115	0:84d7747641aa	6	* @author NXP MCU SW Application Team
frank26080115	0:84d7747641aa	7	**************************************************************************
frank26080115	0:84d7747641aa	8	* Software that is described herein is for illustrative purposes only
frank26080115	0:84d7747641aa	9	* which provides customers with programming information regarding the
frank26080115	0:84d7747641aa	10	* products. This software is supplied "AS IS" without any warranties.
frank26080115	0:84d7747641aa	11	* NXP Semiconductors assumes no responsibility or liability for the
frank26080115	0:84d7747641aa	12	* use of the software, conveys no license or title under any patent,
frank26080115	0:84d7747641aa	13	* copyright, or mask work right to the product. NXP Semiconductors
frank26080115	0:84d7747641aa	14	* reserves the right to make changes in the software without
frank26080115	0:84d7747641aa	15	* notification. NXP Semiconductors also make no representation or
frank26080115	0:84d7747641aa	16	* warranty that such application will be suitable for the specified
frank26080115	0:84d7747641aa	17	* use without further testing or modification.
frank26080115	0:84d7747641aa	18	**********************************************************************/
frank26080115	0:84d7747641aa	19
frank26080115	0:84d7747641aa	20	/* Peripheral group ----------------------------------------------------------- */
frank26080115	0:84d7747641aa	21	/** @addtogroup EXTI
frank26080115	0:84d7747641aa	22	* @{
frank26080115	0:84d7747641aa	23	*/
frank26080115	0:84d7747641aa	24
frank26080115	0:84d7747641aa	25	/* Includes ------------------------------------------------------------------- */
frank26080115	0:84d7747641aa	26	#include "lpc17xx_exti.h"
frank26080115	0:84d7747641aa	27
frank26080115	0:84d7747641aa	28	/* If this source file built with example, the LPC17xx FW library configuration
frank26080115	0:84d7747641aa	29	* file in each example directory ("lpc17xx_libcfg.h") must be included,
frank26080115	0:84d7747641aa	30	* otherwise the default FW library configuration file must be included instead
frank26080115	0:84d7747641aa	31	*/
frank26080115	0:84d7747641aa	32	#ifdef __BUILD_WITH_EXAMPLE__
frank26080115	0:84d7747641aa	33	#include "lpc17xx_libcfg.h"
frank26080115	0:84d7747641aa	34	#else
frank26080115	0:84d7747641aa	35	#include "lpc17xx_libcfg_default.h"
frank26080115	0:84d7747641aa	36	#endif /* __BUILD_WITH_EXAMPLE__ */
frank26080115	0:84d7747641aa	37
frank26080115	0:84d7747641aa	38
frank26080115	0:84d7747641aa	39	#ifdef _EXTI
frank26080115	0:84d7747641aa	40
frank26080115	0:84d7747641aa	41	/* Public Functions ----------------------------------------------------------- */
frank26080115	0:84d7747641aa	42	/** @addtogroup EXTI_Public_Functions
frank26080115	0:84d7747641aa	43	* @{
frank26080115	0:84d7747641aa	44	*/
frank26080115	0:84d7747641aa	45
frank26080115	0:84d7747641aa	46	/*******************************************************************//
frank26080115	0:84d7747641aa	47	* @brief Initial for EXT
frank26080115	0:84d7747641aa	48	* - Set EXTINT, EXTMODE, EXTPOLAR registers to default value
frank26080115	0:84d7747641aa	49	* @param[in] None
frank26080115	0:84d7747641aa	50	* @return None
frank26080115	0:84d7747641aa	51	**********************************************************************/
frank26080115	0:84d7747641aa	52	void EXTI_Init(void)
frank26080115	0:84d7747641aa	53	{
frank26080115	0:84d7747641aa	54	LPC_SC->EXTINT = 0xF;
frank26080115	0:84d7747641aa	55	LPC_SC->EXTMODE = 0x0;
frank26080115	0:84d7747641aa	56	LPC_SC->EXTPOLAR = 0x0;
frank26080115	0:84d7747641aa	57	}
frank26080115	0:84d7747641aa	58
frank26080115	0:84d7747641aa	59
frank26080115	0:84d7747641aa	60	/*******************************************************************//
frank26080115	0:84d7747641aa	61	* @brief Close EXT
frank26080115	0:84d7747641aa	62	* @param[in] None
frank26080115	0:84d7747641aa	63	* @return None
frank26080115	0:84d7747641aa	64	**********************************************************************/
frank26080115	0:84d7747641aa	65	void EXTI_DeInit(void)
frank26080115	0:84d7747641aa	66	{
frank26080115	0:84d7747641aa	67	;
frank26080115	0:84d7747641aa	68	}
frank26080115	0:84d7747641aa	69
frank26080115	0:84d7747641aa	70	/*******************************************************************//
frank26080115	0:84d7747641aa	71	* @brief Configuration for EXT
frank26080115	0:84d7747641aa	72	* - Set EXTINT, EXTMODE, EXTPOLAR register
frank26080115	0:84d7747641aa	73	* @param[in] EXTICfg Pointer to a EXTI_InitTypeDef structure
frank26080115	0:84d7747641aa	74	* that contains the configuration information for the
frank26080115	0:84d7747641aa	75	* specified external interrupt
frank26080115	0:84d7747641aa	76	* @return None
frank26080115	0:84d7747641aa	77	**********************************************************************/
frank26080115	0:84d7747641aa	78	void EXTI_Config(EXTI_InitTypeDef *EXTICfg)
frank26080115	0:84d7747641aa	79	{
frank26080115	0:84d7747641aa	80	LPC_SC->EXTINT = 0x0;
frank26080115	0:84d7747641aa	81	EXTI_SetMode(EXTICfg->EXTI_Line, EXTICfg->EXTI_Mode);
frank26080115	0:84d7747641aa	82	EXTI_SetPolarity(EXTICfg->EXTI_Line, EXTICfg->EXTI_polarity);
frank26080115	0:84d7747641aa	83	}
frank26080115	0:84d7747641aa	84
frank26080115	0:84d7747641aa	85	/*******************************************************************//
frank26080115	0:84d7747641aa	86	* @brief Set mode for EXTI pin
frank26080115	0:84d7747641aa	87	* @param[in] EXTILine external interrupt line, should be:
frank26080115	0:84d7747641aa	88	* - EXTI_EINT0: external interrupt line 0
frank26080115	0:84d7747641aa	89	* - EXTI_EINT1: external interrupt line 1
frank26080115	0:84d7747641aa	90	* - EXTI_EINT2: external interrupt line 2
frank26080115	0:84d7747641aa	91	* - EXTI_EINT3: external interrupt line 3
frank26080115	0:84d7747641aa	92	* @param[in] mode external mode, should be:
frank26080115	0:84d7747641aa	93	* - EXTI_MODE_LEVEL_SENSITIVE
frank26080115	0:84d7747641aa	94	* - EXTI_MODE_EDGE_SENSITIVE
frank26080115	0:84d7747641aa	95	* @return None
frank26080115	0:84d7747641aa	96	*********************************************************************/
frank26080115	0:84d7747641aa	97	void EXTI_SetMode(EXTI_LINE_ENUM EXTILine, EXTI_MODE_ENUM mode)
frank26080115	0:84d7747641aa	98	{
frank26080115	0:84d7747641aa	99	if(mode == EXTI_MODE_EDGE_SENSITIVE)
frank26080115	0:84d7747641aa	100	{
frank26080115	0:84d7747641aa	101	LPC_SC->EXTMODE \|= (1 << EXTILine);
frank26080115	0:84d7747641aa	102	}
frank26080115	0:84d7747641aa	103	else if(mode == EXTI_MODE_LEVEL_SENSITIVE)
frank26080115	0:84d7747641aa	104	{
frank26080115	0:84d7747641aa	105	LPC_SC->EXTMODE &= ~(1 << EXTILine);
frank26080115	0:84d7747641aa	106	}
frank26080115	0:84d7747641aa	107	}
frank26080115	0:84d7747641aa	108
frank26080115	0:84d7747641aa	109	/*******************************************************************//
frank26080115	0:84d7747641aa	110	* @brief Set polarity for EXTI pin
frank26080115	0:84d7747641aa	111	* @param[in] EXTILine external interrupt line, should be:
frank26080115	0:84d7747641aa	112	* - EXTI_EINT0: external interrupt line 0
frank26080115	0:84d7747641aa	113	* - EXTI_EINT1: external interrupt line 1
frank26080115	0:84d7747641aa	114	* - EXTI_EINT2: external interrupt line 2
frank26080115	0:84d7747641aa	115	* - EXTI_EINT3: external interrupt line 3
frank26080115	0:84d7747641aa	116	* @param[in] polarity external polarity value, should be:
frank26080115	0:84d7747641aa	117	* - EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE
frank26080115	0:84d7747641aa	118	* - EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE
frank26080115	0:84d7747641aa	119	* @return None
frank26080115	0:84d7747641aa	120	*********************************************************************/
frank26080115	0:84d7747641aa	121	void EXTI_SetPolarity(EXTI_LINE_ENUM EXTILine, EXTI_POLARITY_ENUM polarity)
frank26080115	0:84d7747641aa	122	{
frank26080115	0:84d7747641aa	123	if(polarity == EXTI_POLARITY_HIGH_ACTIVE_OR_RISING_EDGE)
frank26080115	0:84d7747641aa	124	{
frank26080115	0:84d7747641aa	125	LPC_SC->EXTPOLAR \|= (1 << EXTILine);
frank26080115	0:84d7747641aa	126	}
frank26080115	0:84d7747641aa	127	else if(polarity == EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE)
frank26080115	0:84d7747641aa	128	{
frank26080115	0:84d7747641aa	129	LPC_SC->EXTPOLAR &= ~(1 << EXTILine);
frank26080115	0:84d7747641aa	130	}
frank26080115	0:84d7747641aa	131	}
frank26080115	0:84d7747641aa	132
frank26080115	0:84d7747641aa	133	/*******************************************************************//
frank26080115	0:84d7747641aa	134	* @brief Clear External interrupt flag
frank26080115	0:84d7747641aa	135	* @param[in] EXTILine external interrupt line, should be:
frank26080115	0:84d7747641aa	136	* - EXTI_EINT0: external interrupt line 0
frank26080115	0:84d7747641aa	137	* - EXTI_EINT1: external interrupt line 1
frank26080115	0:84d7747641aa	138	* - EXTI_EINT2: external interrupt line 2
frank26080115	0:84d7747641aa	139	* - EXTI_EINT3: external interrupt line 3
frank26080115	0:84d7747641aa	140	* @return None
frank26080115	0:84d7747641aa	141	*********************************************************************/
frank26080115	0:84d7747641aa	142	void EXTI_ClearEXTIFlag(EXTI_LINE_ENUM EXTILine)
frank26080115	0:84d7747641aa	143	{
frank26080115	0:84d7747641aa	144	LPC_SC->EXTINT \|= (1 << EXTILine);
frank26080115	0:84d7747641aa	145	}
frank26080115	0:84d7747641aa	146
frank26080115	0:84d7747641aa	147	/**
frank26080115	0:84d7747641aa	148	* @}
frank26080115	0:84d7747641aa	149	*/
frank26080115	0:84d7747641aa	150
frank26080115	0:84d7747641aa	151	#endif /* _EXTI */
frank26080115	0:84d7747641aa	152
frank26080115	0:84d7747641aa	153	/**
frank26080115	0:84d7747641aa	154	* @}
frank26080115	0:84d7747641aa	155	*/
frank26080115	0:84d7747641aa	156
frank26080115	0:84d7747641aa	157	/* --------------------------------- End Of File ------------------------------ */
frank26080115	0:84d7747641aa	158

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	20 Mar 2011
Imports:	652
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	20

lpc17xx_exti.c@0:84d7747641aa, 2011-03-20 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning