These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
Diff: RIT/Interrupt/rit_interrupt.c
- Revision:
- 0:bf7b9fba3924
diff -r 000000000000 -r bf7b9fba3924 RIT/Interrupt/rit_interrupt.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RIT/Interrupt/rit_interrupt.c Sun Mar 20 05:38:56 2011 +0000 @@ -0,0 +1,154 @@ +/***********************************************************************//** + * @file rit_interrupt.c + * @purpose This example used RIT to generate interrupt each 1s + * @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_rit.h" +#include "lpc17xx_libcfg.h" +#include "debug_frmwrk.h" +#include "lpc17xx_gpio.h" + +/* Example group ----------------------------------------------------------- */ +/** @defgroup RIT_Interrupt Interrupt + * @ingroup RIT_Examples + * @{ + */ + +/************************** PRIVATE DEFINITIONS ***********************/ +#define MCB_LPC_1768 +//#define IAR_LPC_1768 + +#define TIME_INTERVAL 1000 + +/************************** PRIVATE VARIABLE ***********************/ +uint8_t menu[]= + "********************************************************************************\n\r" + "Hello NXP Semiconductors \n\r" + " RIT demo \n\r" + "\t - MCU: LPC17xx \n\r" + "\t - Core: ARM CORTEX-M3 \n\r" + "\t - Communicate via: UART0 - 115200 bps \n\r" + " Use RIT as a timer to generate interrupt to turn on/off LED each 1s \n\r" + "********************************************************************************\n\r"; +FunctionalState LEDStatus = ENABLE; + +/************************** PRIVATE FUNCTION *************************/ +void RIT_IRQHandler(void); + +/*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/ +/*********************************************************************//** + * @brief RIT interrupt handler sub-routine + * @param[in] None + * @return None + **********************************************************************/ +void RIT_IRQHandler(void) +{ + RIT_GetIntStatus(LPC_RIT); //call this to clear interrupt flag + if(LEDStatus == ENABLE) + { + LEDStatus = DISABLE; +#ifdef MCB_LPC_1768 + //turn off LED + GPIO_ClearValue(2,(1<<2)); +#elif defined(IAR_LPC_1768) + GPIO_SetValue(1,(1<<25)); +#endif + } + else + { + LEDStatus = ENABLE; +#ifdef MCB_LPC_1768 + //turn off LED + GPIO_SetValue(2,(1<<2)); +#elif defined(IAR_LPC_1768) + GPIO_ClearValue(1,(1<<25)); +#endif + } +} + +/*-------------------------MAIN FUNCTION------------------------------*/ +/*********************************************************************//** + * @brief c_entry: Main RIT program body + * @param[in] None + * @return int + **********************************************************************/ +int c_entry (void) { + + /* Initialize debug via UART0 + * 115200bps + * 8 data bit + * No parity + * 1 stop bit + * No flow control + */ + debug_frmwrk_init(); + _DBG(menu); + + RIT_Init(LPC_RIT); + /* Configure time_interval for RIT + * In this case: time_interval = 1000 ms = 1s + * So, RIT will generate interrupt each 1s + */ + RIT_TimerConfig(LPC_RIT,TIME_INTERVAL); + + _DBG("The time interval is: "); + _DBD32(TIME_INTERVAL); _DBG_(" millisecond.."); + +#ifdef MCB_LPC_1768 /* Using LED2.2 for testing */ + //turn on LED2.2 + FIO_SetDir(2,(1<<2),1); + FIO_SetValue(2,(1<<2)); +#elif defined(IAR_LPC_1768) /* Using LED1 (P1.25 for testing */ + FIO_SetDir(1,(1<<25),1); + FIO_ClearValue(1,(1<<25)); +#endif + NVIC_EnableIRQ(RIT_IRQn); + + 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 + +/* + * @} + */