Frank 26080115 / LPC1700CMSIS_Examples

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

PWR/RTC_DeepPWD/rtc_deeppwd.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		rtc_deeppwd.c





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 * @purpose		This example describes how to enter the system in Deep





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 * 				PowerDown and wake-up by using RTC Interrupt





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 * @version		1.0





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 * @date		18. June. 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_clkpwr.h"





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#include "lpc17xx_libcfg.h"





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#include "debug_frmwrk.h"





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#include "lpc17xx_gpio.h"





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#include "lpc17xx_rtc.h"





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





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/** @defgroup PWR_RTC_DeepPWD	RTC_DeepPWD





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 * @ingroup PWR_Examples





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 * @{





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 */





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/************************** PRIVATE VARIABLES *************************/





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uint8_t menu[]=





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	"********************************************************************************\n\r"





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	"Hello NXP Semiconductors \n\r"





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	"Power control demo \n\r"





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	"\t - MCU: LPC17xx \n\r"





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	"\t - Core: ARM CORTEX-M3 \n\r"





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	"\t - Communicate via: UART0 - 115200 bps \n\r"





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	"This example used to enter system in Deep PowerDown mode and wake up it by\n\r "





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	"using RTC Interrupt \n\r"





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	"********************************************************************************\n\r";





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





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void print_menu(void);





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void RTC_IRQHandler(void);





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





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





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 * @brief		RTC(Real-time clock) interrupt handler





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 * @param[in]	none





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 * @return 		None





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





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void RTC_IRQHandler(void)





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{





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	if(RTC_GetIntPending(LPC_RTC, RTC_INT_ALARM))





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	{





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		RTC_ClearIntPending(LPC_RTC, RTC_INT_ALARM);





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		RTC_Cmd(LPC_RTC, DISABLE);





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		NVIC_DisableIRQ(RTC_IRQn);





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	}





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}





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





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





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 * @brief		Print Welcome menu





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 * @param[in]	none





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 * @return 		None





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





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void print_menu(void)





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{





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	_DBG(menu);





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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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	/* Initialize debug via UART0





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	 * – 115200bps





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	 * – 8 data bit





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	 * – No parity





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	 * – 1 stop bit





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	 * – No flow control





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	 */





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	debug_frmwrk_init();





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	// print welcome screen





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	print_menu();





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	/* Initialize and configure RTC */





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	RTC_Init(LPC_RTC);





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	RTC_ResetClockTickCounter(LPC_RTC);





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	RTC_SetTime (LPC_RTC, RTC_TIMETYPE_SECOND, 0);





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	/* Set alarm time = 5s.





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	 * So, after each 5s, RTC will generate and wake-up system





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	 * out of Deep PowerDown mode.





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	 */





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	RTC_SetAlarmTime (LPC_RTC, RTC_TIMETYPE_SECOND, 5);





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	RTC_CntIncrIntConfig (LPC_RTC, RTC_TIMETYPE_SECOND, DISABLE);





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	/* Set the AMR for 5s match alarm interrupt */





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	RTC_AlarmIntConfig (LPC_RTC, RTC_TIMETYPE_SECOND, ENABLE);





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	RTC_ClearIntPending(LPC_RTC, RTC_INT_ALARM);





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	_DBG_("Press '1' to enter system in Deep PowerDown mode");





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	while(_DG !='1');





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	RTC_Cmd(LPC_RTC, ENABLE);





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	NVIC_EnableIRQ(RTC_IRQn);





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	_DBG_("Enter Deep PowerDown mode...");





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	_DBG_("Wait 5s, RTC will wake-up system...\n\r");





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	// Enter target power down mode





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	CLKPWR_DeepPowerDown();





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	while(1);





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	return 1;





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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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 */