These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
Diff: RTC/AlarmCntIncrInterrupt/rtc_alarm_cntincr_int.c
- Revision:
- 0:bf7b9fba3924
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RTC/AlarmCntIncrInterrupt/rtc_alarm_cntincr_int.c Sun Mar 20 05:38:56 2011 +0000 @@ -0,0 +1,204 @@ +/***********************************************************************//** + * @file : rtc_alarm_cntincr_int.c + * @purpose : This example describes how to use RTC to generate interrupt + * in Second Counter Increment Interrupt (1s) and generate + * alarm interrupt at 10s + * @version : 2.0 + * @date : 21. May. 2010 + * @author : NXP MCU SW Application Team + *--------------------------------------------------------------------- + * 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. + **********************************************************************/ +#include "lpc17xx_rtc.h" +#include "lpc17xx_libcfg.h" +#include "debug_frmwrk.h" + +/* Example group ----------------------------------------------------------- */ +/** @defgroup RTC_AlarmCntIncrInterrupt AlarmCntIncrInterrupt + * @ingroup RTC_Examples + * @{ + */ + + +/************************** PRIVATE VARIABLES *************************/ +uint8_t menu1[] = +"********************************************************************************\n\r" +"Hello NXP Semiconductors \n\r" +" RTC demo \n\r" +"\t - MCU: LPC17xx \n\r" +"\t - Core: ARM CORTEX-M3 \n\r" +"\t - Communicate via: UART0 - 115200 bps \n\r" +" A simple RTC example. \n\r" +" To generate interrupt in Second Counter Increment Interrupt (1s) \n\r" +" and generate Alarm interrupt at 10s \n\r" +"********************************************************************************\n\r"; + +/************************** PRIVATE FUNCTION *************************/ +void RTC_IRQHandler(void); + +void print_menu(void); + +/*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/ +/*********************************************************************//** + * @brief RTC interrupt handler sub-routine + * @param[in] None + * @return None + **********************************************************************/ +void RTC_IRQHandler(void) +{ + uint32_t secval; + + /* This is increment counter interrupt*/ + if (RTC_GetIntPending(LPC_RTC, RTC_INT_COUNTER_INCREASE)) + { + secval = RTC_GetTime (LPC_RTC, RTC_TIMETYPE_SECOND); + + /* Send debug information */ + _DBG ("Second: "); _DBD(secval); + _DBG_(""); + + // Clear pending interrupt + RTC_ClearIntPending(LPC_RTC, RTC_INT_COUNTER_INCREASE); + } + + /* Continue to check the Alarm match*/ + if (RTC_GetIntPending(LPC_RTC, RTC_INT_ALARM)) + { + /* Send debug information */ + _DBG_ ("ALARM 10s matched!"); + + // Clear pending interrupt + RTC_ClearIntPending(LPC_RTC, RTC_INT_ALARM); + } +} + +/*-------------------------PRIVATE FUNCTIONS------------------------------*/ +/*********************************************************************//** + * @brief Print menu + * @param[in] None + * @return None + **********************************************************************/ +void print_menu(void) +{ + _DBG(menu1); +} + + +/*-------------------------MAIN FUNCTION------------------------------*/ +/*********************************************************************//** + * @brief c_entry: Main RTC program body + * @param[in] None + * @return int + **********************************************************************/ +int c_entry(void) +{ + RTC_TIME_Type RTCFullTime; + + /* Initialize debug via UART0 + * 115200bps + * 8 data bit + * No parity + * 1 stop bit + * No flow control + */ + debug_frmwrk_init(); + + // print welcome screen + print_menu(); + + /* RTC Block section ------------------------------------------------------ */ + // Init RTC module + RTC_Init(LPC_RTC); + + /* Disable RTC interrupt */ + NVIC_DisableIRQ(RTC_IRQn); + /* preemption = 1, sub-priority = 1 */ + NVIC_SetPriority(RTC_IRQn, ((0x01<<3)|0x01)); + + /* Enable rtc (starts increase the tick counter and second counter register) */ + RTC_ResetClockTickCounter(LPC_RTC); + RTC_Cmd(LPC_RTC, ENABLE); + RTC_CalibCounterCmd(LPC_RTC, DISABLE); + + /* Set current time for RTC */ + // Current time is 8:00:00PM, 2009-04-24 + RTC_SetTime (LPC_RTC, RTC_TIMETYPE_SECOND, 0); + RTC_SetTime (LPC_RTC, RTC_TIMETYPE_MINUTE, 0); + RTC_SetTime (LPC_RTC, RTC_TIMETYPE_HOUR, 20); + RTC_SetTime (LPC_RTC, RTC_TIMETYPE_MONTH, 4); + RTC_SetTime (LPC_RTC, RTC_TIMETYPE_YEAR, 2009); + RTC_SetTime (LPC_RTC, RTC_TIMETYPE_DAYOFMONTH, 24); + + /* Set ALARM time for second */ + RTC_SetAlarmTime (LPC_RTC, RTC_TIMETYPE_SECOND, 10); + + // Get and print current time + RTC_GetFullTime (LPC_RTC, &RTCFullTime); + _DBG( "Current time set to: "); + _DBD((RTCFullTime.HOUR)); _DBG (":"); + _DBD ((RTCFullTime.MIN)); _DBG (":"); + _DBD ((RTCFullTime.SEC)); _DBG(" "); + _DBD ((RTCFullTime.DOM)); _DBG("/"); + _DBD ((RTCFullTime.MONTH)); _DBG("/"); + _DBD16 ((RTCFullTime.YEAR)); _DBG_(""); + + _DBG("Second ALARM set to "); + _DBD (RTC_GetAlarmTime (LPC_RTC, RTC_TIMETYPE_SECOND)); + _DBG_("s"); + + /* Set the CIIR for second counter interrupt*/ + RTC_CntIncrIntConfig (LPC_RTC, RTC_TIMETYPE_SECOND, ENABLE); + /* Set the AMR for 10s match alarm interrupt */ + RTC_AlarmIntConfig (LPC_RTC, RTC_TIMETYPE_SECOND, ENABLE); + + /* Enable RTC interrupt */ + NVIC_EnableIRQ(RTC_IRQn); + + /* Loop forever */ + while(1); + return 1; +} + + + +/* With ARM and GHS toolsets, the entry point is main() - this will + allow the linker to generate wrapper code to setup stacks, allocate + heap area, and initialize and copy code and data segments. For GNU + toolsets, the entry point is through __start() in the crt0_gnu.asm + file, and that startup code will setup stacks and data */ +int main(void) +{ + return c_entry(); +} + + +#ifdef DEBUG +/******************************************************************************* +* @brief Reports the name of the source file and the source line number +* where the CHECK_PARAM error has occurred. +* @param[in] file Pointer to the source file name +* @param[in] line assert_param error line source number +* @return None +*******************************************************************************/ +void check_failed(uint8_t *file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + /* Infinite loop */ + while(1); +} +#endif + +/* + * @} + */