These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
WDT/RESET/wdt_reset_test.c
- Committer:
- frank26080115
- Date:
- 2011-03-20
- Revision:
- 0:bf7b9fba3924
File content as of revision 0:bf7b9fba3924:
/***********************************************************************//** * @file wdt_reset_test.c * @purpose This example describes how to use WDT in reset mode * @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_wdt.h" #include "lpc17xx_libcfg.h" #include "lpc17xx_pinsel.h" #include "debug_frmwrk.h" #include "lpc17xx_gpio.h" /* Example group ----------------------------------------------------------- */ /** @defgroup WDT_RESET RESET * @ingroup WDT_Examples * @{ */ /************************** PRIVATE DEFINITIONS *************************/ //#define MCB_LPC_1768 #define IAR_LPC_1768 //Watchodog time out in 5 seconds #define WDT_TIMEOUT 5000000 /************************** PRIVATE VARIABLES *************************/ uint8_t menu1[] = "********************************************************************************\n\r" "This Welcome Screen below will executive after reset event \n\r" "Hello NXP Semiconductors \n\r" " Watch dog timer reset when timeout demo \n\r" "\t - MCU: LPC17xx \n\r" "\t - Core: Cortex M3 \n\r" "\t - Communicate via: UART0 - 115200 bps \n\r" " Use WDT with Internal RC OSC, reset mode, timeout = 5 seconds \n\r" " To reset MCU when time out. After reset, program will determine what cause of " " last reset time (external reset or WDT time-out)\n\r" "********************************************************************************\n\r"; uint8_t info1[] = "Last MCU reset caused by WDT TimeOut!\n\r"; uint8_t info2[] = "Last MCU reset caused by External!\n\r"; /*-------------------------MAIN FUNCTION------------------------------*/ /*********************************************************************//** * @brief c_entry: Main WDT 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(); // print welcome screen _DBG(menu1); // Read back TimeOut flag to determine previous timeout reset if (WDT_ReadTimeOutFlag()){ _DBG_(info1); // Clear WDT TimeOut WDT_ClrTimeOutFlag(); } else{ _DBG_(info2); } // Initialize WDT, IRC OSC, interrupt mode, timeout = 5000000us = 5s WDT_Init(WDT_CLKSRC_IRC, WDT_MODE_RESET); // Start watchdog with timeout given WDT_Start(WDT_TIMEOUT); //infinite loop to wait chip reset from WDT while(1); return 0; } /* Support required entry point for other toolchain */ 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 /* * @} */