These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
NVIC/VecTable_Relocation/vt_relocation.c
- Committer:
- frank26080115
- Date:
- 2011-03-20
- Revision:
- 0:bf7b9fba3924
File content as of revision 0:bf7b9fba3924:
/***********************************************************************//** * @file vt_relocation.c * @purpose This example used to test NVIC Vector Table relocation * function * @version 1.0 * @date 18. June. 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 <stdio.h> #include "lpc17xx_libcfg.h" #include "debug_frmwrk.h" #include "lpc17xx_gpio.h" #include "lpc17xx_nvic.h" #include "lpc17xx_systick.h" /* Example group ----------------------------------------------------------- */ /** @defgroup NVIC_VecTable_Relocation VecTable_Relocation * @ingroup NVIC_Examples * @{ */ /************************** PRIVATE DEFINITIONS ***********************/ /* Vector Table Offset */ #define VTOR_OFFSET 0x20080000 /************************** PRIVATE VARIABLES *************************/ uint8_t menu[]= "********************************************************************************\n\r" "Hello NXP Semiconductors \n\r" "Privileged demo \n\r" "\t - MCU: LPC17xx \n\r" "\t - Core: ARM CORTEX-M3 \n\r" "\t - Communicate via: UART0 - 115200 bps \n\r" "This example used to test NVIC Vector Table Relocation function\n\r" "********************************************************************************\n\r"; FunctionalState Cur_State = DISABLE; /************************** PRIVATE FUNCTIONS *************************/ void SysTick_Handler(void); void print_menu(void); /*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/ /*********************************************************************//** * @brief SysTick interrupt handler * @param None * @return None ***********************************************************************/ void SysTick_Handler(void) { //Clear System Tick counter flag SYSTICK_ClearCounterFlag(); //toggle P0.0 if (Cur_State == ENABLE) { //pull-down pin GPIO_ClearValue(1, (1<<28)); Cur_State = DISABLE; } else { GPIO_SetValue(1, (1<<28)); Cur_State = ENABLE; } } /*-------------------------PRIVATE FUNCTIONS------------------------------*/ /*********************************************************************//** * @brief Print Welcome menu * @param[in] none * @return None **********************************************************************/ void print_menu(void) { _DBG(menu); } /*-------------------------MAIN FUNCTION------------------------------*/ /*********************************************************************//** * @brief c_entry: Main 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 print_menu(); //Use P0.0 to test System Tick interrupt GPIO_SetDir(1, (1<<28), 1); //Set P0.0 as output _DBG("Remapping Vector Table at address: "); _DBH32(VTOR_OFFSET); _DBG_(""); NVIC_SetVTOR(VTOR_OFFSET); /* Copy Vector Table from 0x00000000 to new address * In ROM mode: Vector Interrupt Table is initialized at 0x00000000 * In RAM mode: Vector Interrupt Table is initialized at 0x10000000 * Aligned: 256 words */ #if(__RAM_MODE__==0)//Run in ROM mode memcpy(VTOR_OFFSET, 0x00000000, 256*4); #else memcpy(VTOR_OFFSET, 0x10000000, 256*4); #endif _DBG_("If Vector Table remapping is successful, LED P1.28 will blink by using SysTick interrupt"); //Initialize System Tick with 100ms time interval SYSTICK_InternalInit(100); //Enable System Tick interrupt SYSTICK_IntCmd(ENABLE); //Enable System Tick Counter SYSTICK_Cmd(ENABLE); 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 /* * @} */