Frank 26080115 / LPC1700CMSIS_Examples

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

GPIO/GPIO_Interrupt/gpio_int.c@0:bf7b9fba3924, 2011-03-20 (annotated)

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

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


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/***********************************************************************//**





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 * @file		gpio_int.c





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 * @purpose		This example used to test GPIO interrupt function





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 * @version		2.0





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 * @date		21. May. 2010





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 * @author		NXP MCU SW Application Team





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 *---------------------------------------------------------------------





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 * Software that is described herein is for illustrative purposes only





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 * which provides customers with programming information regarding the





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 * products. This software is supplied "AS IS" without any warranties.





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 * NXP Semiconductors assumes no responsibility or liability for the





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 * use of the software, conveys no license or title under any patent,





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 * copyright, or mask work right to the product. NXP Semiconductors





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 * reserves the right to make changes in the software without





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 * notification. NXP Semiconductors also make no representation or





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 * warranty that such application will be suitable for the specified





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 * use without further testing or modification.





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 **********************************************************************/





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#include "LPC17xx.h"





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#include "lpc17xx_gpio.h"





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#include "lpc17xx_pinsel.h"





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#include "lpc17xx_libcfg.h"





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/* Example group ----------------------------------------------------------- */





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/** @defgroup GPIO_Interrupt	GPIO_Interrupt





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 * @ingroup GPIO_Examples





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 * @{





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 */





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/************************** PRIVATE DEFINITIONS *************************/





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#define MCB_LPC_1768





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//#define IAR_LPC_1768





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#ifdef MCB_LPC_1768





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/* LED pin in byte style on P1 */





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#define POLL_LED	(1<<4)		// P1.28





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#define INT3_LED	(1<<5)		// P1.29





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#define GPIO_INT	(1<<25)		// test GPIO interrupt on P0.25





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#elif defined(IAR_LPC_1768)





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#define POLL_LED	(1<<1)		//P1.25 (LED2)





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#define INT3_LED	(1<<4)		//P0.4 	(LED1)





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#define GPIO_INT	(1<<23) 	// test GPIO interrupt on P0.23





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#endif





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/************************** PRIVATE FUNCTIONS *************************/





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void EINT3_IRQHandler(void);





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void delay (void);





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/*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/





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/*********************************************************************//**





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 * @brief		External interrupt 3 handler sub-routine





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 * @param[in]	None





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 * @return 		None





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 **********************************************************************/





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void EINT3_IRQHandler(void)





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{





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	      int j;





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	      if(GPIO_GetIntStatus(0, 25, 1))





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		  {





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	    	  GPIO_ClearInt(0,(1<<25));





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			  for (j= 0; j<8; j++)





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			  {





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#ifdef MCB_LPC_1768





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				  /* Use MCB1700 board:





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				   * blink LED P1.29 when EINT3 occur





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				   */





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				    FIO_ByteSetValue(1, 3, INT3_LED);





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					delay();





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					FIO_ByteClearValue(1, 3, INT3_LED);





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				    delay();





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#elif defined(IAR_LPC_1768)





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				/* Use IAR LPC1768 KS board:





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				 * blink LED2 P0.4 when EINT3 occur





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				 */





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				    FIO_ByteSetValue(0, 0, INT3_LED);





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					delay();





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					FIO_ByteClearValue(0, 0, INT3_LED);





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				    delay();





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#endif





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			  }





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          }





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}





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/*-------------------------PRIVATE FUNCTIONS------------------------------*/





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/*********************************************************************//**





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 * @brief		Delay function





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 * @param[in]	None





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 * @return 		None





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 **********************************************************************/





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void delay (void) {





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  unsigned int i;





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  for (i = 0; i < 0x100000; i++) {





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  }





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}





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/*-------------------------MAIN FUNCTION------------------------------*/





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/*********************************************************************//**





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 * @brief		c_entry: Main program body





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 * @param[in]	None





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 * @return 		int





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 **********************************************************************/





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int c_entry (void)





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{





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	/** Use: LEDs for polling when idle and when GPIO interrupt occurs





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	 *  If using MCB1700 board: Polling led: P1.28; Interrupt led: P1.29





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	 *  If using IAR KS board:  Polling led: P1.25 (LED1); Interrupt led: P0.4 (LED2)





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	 */





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#ifdef MCB_LPC_1768





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	FIO_ByteSetDir(1, 3, POLL_LED, 1);





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	FIO_ByteSetDir(1, 3, INT3_LED, 1);





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	// Turn off all LEDs





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	FIO_ByteClearValue(1, 3, POLL_LED);





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	FIO_ByteClearValue(1, 3, INT3_LED);





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#elif defined(IAR_LPC_1768)





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	FIO_ByteSetDir(1, 3, POLL_LED, 1);





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	FIO_ByteSetDir(0, 0, INT3_LED, 1);





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	// Turn off all LEDs





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	FIO_ByteSetValue(1, 3, POLL_LED);





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	FIO_ByteSetValue(0, 0, INT3_LED);





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#endif





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	// Enable GPIO interrupt





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	/* Use MCB1700: test GPIO interrupt on P0.25->connects with ADC potentiometer





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	 * Use IAR KS : test GPIO interrupt on P0.23->connects with BUT1 button





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	 */





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	GPIO_IntCmd(0,(1<<25),1);





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	NVIC_EnableIRQ(EINT3_IRQn);





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	while (1)





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	{





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		//polling led while idle





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		FIO_ByteSetValue(1, 3, POLL_LED);





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		delay();





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		FIO_ByteClearValue(1, 3, POLL_LED);





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		delay();





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	}





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}





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/* With ARM and GHS toolsets, the entry point is main() - this will





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   allow the linker to generate wrapper code to setup stacks, allocate





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   heap area, and initialize and copy code and data segments. For GNU





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   toolsets, the entry point is through __start() in the crt0_gnu.asm





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   file, and that startup code will setup stacks and data */





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int main(void)





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{





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    return c_entry();





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}





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#ifdef  DEBUG





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/*******************************************************************************





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* @brief		Reports the name of the source file and the source line number





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* 				where the CHECK_PARAM error has occurred.





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* @param[in]	file Pointer to the source file name





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* @param[in]    line assert_param error line source number





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* @return		None





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*******************************************************************************/





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void check_failed(uint8_t *file, uint32_t line)





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{





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	/* User can add his own implementation to report the file name and line number,





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	 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */





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	/* Infinite loop */





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	while(1);





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}





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#endif





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/*





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 * @}





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 */