LPC1700CMSIS_Examples - These are the examples provided for [[/users/fran…

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These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!

RIT/Interrupt/rit_interrupt.c@0:bf7b9fba3924, 2011-03-20 (annotated)

Committer:: frank26080115
Date:: Sun Mar 20 05:38:56 2011 +0000
Revision:: 0:bf7b9fba3924

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User	Revision	Line number	New contents of line
frank26080115	0:bf7b9fba3924	1	/*********************************************************************//
frank26080115	0:bf7b9fba3924	2	* @file rit_interrupt.c
frank26080115	0:bf7b9fba3924	3	* @purpose This example used RIT to generate interrupt each 1s
frank26080115	0:bf7b9fba3924	4	* @version 2.0
frank26080115	0:bf7b9fba3924	5	* @date 21. May. 2010
frank26080115	0:bf7b9fba3924	6	* @author NXP MCU SW Application Team
frank26080115	0:bf7b9fba3924	7	*---------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	8	* Software that is described herein is for illustrative purposes only
frank26080115	0:bf7b9fba3924	9	* which provides customers with programming information regarding the
frank26080115	0:bf7b9fba3924	10	* products. This software is supplied "AS IS" without any warranties.
frank26080115	0:bf7b9fba3924	11	* NXP Semiconductors assumes no responsibility or liability for the
frank26080115	0:bf7b9fba3924	12	* use of the software, conveys no license or title under any patent,
frank26080115	0:bf7b9fba3924	13	* copyright, or mask work right to the product. NXP Semiconductors
frank26080115	0:bf7b9fba3924	14	* reserves the right to make changes in the software without
frank26080115	0:bf7b9fba3924	15	* notification. NXP Semiconductors also make no representation or
frank26080115	0:bf7b9fba3924	16	* warranty that such application will be suitable for the specified
frank26080115	0:bf7b9fba3924	17	* use without further testing or modification.
frank26080115	0:bf7b9fba3924	18	**********************************************************************/
frank26080115	0:bf7b9fba3924	19	#include "lpc17xx_rit.h"
frank26080115	0:bf7b9fba3924	20	#include "lpc17xx_libcfg.h"
frank26080115	0:bf7b9fba3924	21	#include "debug_frmwrk.h"
frank26080115	0:bf7b9fba3924	22	#include "lpc17xx_gpio.h"
frank26080115	0:bf7b9fba3924	23
frank26080115	0:bf7b9fba3924	24	/* Example group ----------------------------------------------------------- */
frank26080115	0:bf7b9fba3924	25	/** @defgroup RIT_Interrupt Interrupt
frank26080115	0:bf7b9fba3924	26	* @ingroup RIT_Examples
frank26080115	0:bf7b9fba3924	27	* @{
frank26080115	0:bf7b9fba3924	28	*/
frank26080115	0:bf7b9fba3924	29
frank26080115	0:bf7b9fba3924	30	/************************ PRIVATE DEFINITIONS *********************/
frank26080115	0:bf7b9fba3924	31	#define MCB_LPC_1768
frank26080115	0:bf7b9fba3924	32	//#define IAR_LPC_1768
frank26080115	0:bf7b9fba3924	33
frank26080115	0:bf7b9fba3924	34	#define TIME_INTERVAL 1000
frank26080115	0:bf7b9fba3924	35
frank26080115	0:bf7b9fba3924	36	/************************ PRIVATE VARIABLE *********************/
frank26080115	0:bf7b9fba3924	37	uint8_t menu[]=
frank26080115	0:bf7b9fba3924	38	"********************************************************************************\n\r"
frank26080115	0:bf7b9fba3924	39	"Hello NXP Semiconductors \n\r"
frank26080115	0:bf7b9fba3924	40	" RIT demo \n\r"
frank26080115	0:bf7b9fba3924	41	"\t - MCU: LPC17xx \n\r"
frank26080115	0:bf7b9fba3924	42	"\t - Core: ARM CORTEX-M3 \n\r"
frank26080115	0:bf7b9fba3924	43	"\t - Communicate via: UART0 - 115200 bps \n\r"
frank26080115	0:bf7b9fba3924	44	" Use RIT as a timer to generate interrupt to turn on/off LED each 1s \n\r"
frank26080115	0:bf7b9fba3924	45	"********************************************************************************\n\r";
frank26080115	0:bf7b9fba3924	46	FunctionalState LEDStatus = ENABLE;
frank26080115	0:bf7b9fba3924	47
frank26080115	0:bf7b9fba3924	48	/************************ PRIVATE FUNCTION ***********************/
frank26080115	0:bf7b9fba3924	49	void RIT_IRQHandler(void);
frank26080115	0:bf7b9fba3924	50
frank26080115	0:bf7b9fba3924	51	/----------------- INTERRUPT SERVICE ROUTINES --------------------------/
frank26080115	0:bf7b9fba3924	52	/*******************************************************************//
frank26080115	0:bf7b9fba3924	53	* @brief RIT interrupt handler sub-routine
frank26080115	0:bf7b9fba3924	54	* @param[in] None
frank26080115	0:bf7b9fba3924	55	* @return None
frank26080115	0:bf7b9fba3924	56	**********************************************************************/
frank26080115	0:bf7b9fba3924	57	void RIT_IRQHandler(void)
frank26080115	0:bf7b9fba3924	58	{
frank26080115	0:bf7b9fba3924	59	RIT_GetIntStatus(LPC_RIT); //call this to clear interrupt flag
frank26080115	0:bf7b9fba3924	60	if(LEDStatus == ENABLE)
frank26080115	0:bf7b9fba3924	61	{
frank26080115	0:bf7b9fba3924	62	LEDStatus = DISABLE;
frank26080115	0:bf7b9fba3924	63	#ifdef MCB_LPC_1768
frank26080115	0:bf7b9fba3924	64	//turn off LED
frank26080115	0:bf7b9fba3924	65	GPIO_ClearValue(2,(1<<2));
frank26080115	0:bf7b9fba3924	66	#elif defined(IAR_LPC_1768)
frank26080115	0:bf7b9fba3924	67	GPIO_SetValue(1,(1<<25));
frank26080115	0:bf7b9fba3924	68	#endif
frank26080115	0:bf7b9fba3924	69	}
frank26080115	0:bf7b9fba3924	70	else
frank26080115	0:bf7b9fba3924	71	{
frank26080115	0:bf7b9fba3924	72	LEDStatus = ENABLE;
frank26080115	0:bf7b9fba3924	73	#ifdef MCB_LPC_1768
frank26080115	0:bf7b9fba3924	74	//turn off LED
frank26080115	0:bf7b9fba3924	75	GPIO_SetValue(2,(1<<2));
frank26080115	0:bf7b9fba3924	76	#elif defined(IAR_LPC_1768)
frank26080115	0:bf7b9fba3924	77	GPIO_ClearValue(1,(1<<25));
frank26080115	0:bf7b9fba3924	78	#endif
frank26080115	0:bf7b9fba3924	79	}
frank26080115	0:bf7b9fba3924	80	}
frank26080115	0:bf7b9fba3924	81
frank26080115	0:bf7b9fba3924	82	/-------------------------MAIN FUNCTION------------------------------/
frank26080115	0:bf7b9fba3924	83	/*******************************************************************//
frank26080115	0:bf7b9fba3924	84	* @brief c_entry: Main RIT program body
frank26080115	0:bf7b9fba3924	85	* @param[in] None
frank26080115	0:bf7b9fba3924	86	* @return int
frank26080115	0:bf7b9fba3924	87	**********************************************************************/
frank26080115	0:bf7b9fba3924	88	int c_entry (void) {
frank26080115	0:bf7b9fba3924	89
frank26080115	0:bf7b9fba3924	90	/* Initialize debug via UART0
frank26080115	0:bf7b9fba3924	91	* 115200bps
frank26080115	0:bf7b9fba3924	92	* 8 data bit
frank26080115	0:bf7b9fba3924	93	* No parity
frank26080115	0:bf7b9fba3924	94	* 1 stop bit
frank26080115	0:bf7b9fba3924	95	* No flow control
frank26080115	0:bf7b9fba3924	96	*/
frank26080115	0:bf7b9fba3924	97	debug_frmwrk_init();
frank26080115	0:bf7b9fba3924	98	_DBG(menu);
frank26080115	0:bf7b9fba3924	99
frank26080115	0:bf7b9fba3924	100	RIT_Init(LPC_RIT);
frank26080115	0:bf7b9fba3924	101	/* Configure time_interval for RIT
frank26080115	0:bf7b9fba3924	102	* In this case: time_interval = 1000 ms = 1s
frank26080115	0:bf7b9fba3924	103	* So, RIT will generate interrupt each 1s
frank26080115	0:bf7b9fba3924	104	*/
frank26080115	0:bf7b9fba3924	105	RIT_TimerConfig(LPC_RIT,TIME_INTERVAL);
frank26080115	0:bf7b9fba3924	106
frank26080115	0:bf7b9fba3924	107	_DBG("The time interval is: ");
frank26080115	0:bf7b9fba3924	108	_DBD32(TIME_INTERVAL); _DBG_(" millisecond..");
frank26080115	0:bf7b9fba3924	109
frank26080115	0:bf7b9fba3924	110	#ifdef MCB_LPC_1768 /* Using LED2.2 for testing */
frank26080115	0:bf7b9fba3924	111	//turn on LED2.2
frank26080115	0:bf7b9fba3924	112	FIO_SetDir(2,(1<<2),1);
frank26080115	0:bf7b9fba3924	113	FIO_SetValue(2,(1<<2));
frank26080115	0:bf7b9fba3924	114	#elif defined(IAR_LPC_1768) /* Using LED1 (P1.25 for testing */
frank26080115	0:bf7b9fba3924	115	FIO_SetDir(1,(1<<25),1);
frank26080115	0:bf7b9fba3924	116	FIO_ClearValue(1,(1<<25));
frank26080115	0:bf7b9fba3924	117	#endif
frank26080115	0:bf7b9fba3924	118	NVIC_EnableIRQ(RIT_IRQn);
frank26080115	0:bf7b9fba3924	119
frank26080115	0:bf7b9fba3924	120	while(1);
frank26080115	0:bf7b9fba3924	121	return 1;
frank26080115	0:bf7b9fba3924	122	}
frank26080115	0:bf7b9fba3924	123
frank26080115	0:bf7b9fba3924	124	/* With ARM and GHS toolsets, the entry point is main() - this will
frank26080115	0:bf7b9fba3924	125	allow the linker to generate wrapper code to setup stacks, allocate
frank26080115	0:bf7b9fba3924	126	heap area, and initialize and copy code and data segments. For GNU
frank26080115	0:bf7b9fba3924	127	toolsets, the entry point is through __start() in the crt0_gnu.asm
frank26080115	0:bf7b9fba3924	128	file, and that startup code will setup stacks and data */
frank26080115	0:bf7b9fba3924	129	int main(void)
frank26080115	0:bf7b9fba3924	130	{
frank26080115	0:bf7b9fba3924	131	return c_entry();
frank26080115	0:bf7b9fba3924	132	}
frank26080115	0:bf7b9fba3924	133
frank26080115	0:bf7b9fba3924	134	#ifdef DEBUG
frank26080115	0:bf7b9fba3924	135	/*******************************************************************************
frank26080115	0:bf7b9fba3924	136	* @brief Reports the name of the source file and the source line number
frank26080115	0:bf7b9fba3924	137	* where the CHECK_PARAM error has occurred.
frank26080115	0:bf7b9fba3924	138	* @param[in] file Pointer to the source file name
frank26080115	0:bf7b9fba3924	139	* @param[in] line assert_param error line source number
frank26080115	0:bf7b9fba3924	140	* @return None
frank26080115	0:bf7b9fba3924	141	*******************************************************************************/
frank26080115	0:bf7b9fba3924	142	void check_failed(uint8_t *file, uint32_t line)
frank26080115	0:bf7b9fba3924	143	{
frank26080115	0:bf7b9fba3924	144	/* User can add his own implementation to report the file name and line number,
frank26080115	0:bf7b9fba3924	145	ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
frank26080115	0:bf7b9fba3924	146
frank26080115	0:bf7b9fba3924	147	/* Infinite loop */
frank26080115	0:bf7b9fba3924	148	while(1);
frank26080115	0:bf7b9fba3924	149	}
frank26080115	0:bf7b9fba3924	150	#endif
frank26080115	0:bf7b9fba3924	151
frank26080115	0:bf7b9fba3924	152	/*
frank26080115	0:bf7b9fba3924	153	* @}
frank26080115	0:bf7b9fba3924	154	*/

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Type:	Program
Created:	20 Mar 2011
Imports:	199
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	7

RIT/Interrupt/rit_interrupt.c@0:bf7b9fba3924, 2011-03-20 (annotated)

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