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mbed library sources

Fork of mbed-src by mbed official

targets/cmsis/TARGET_NXP/TARGET_LPC11U6X/cmsis_nvic.c@174:8bb9f3a33240, 2014-04-29 (annotated)

Committer:
mbed_official
Date:
Tue Apr 29 11:15:07 2014 +0100
Revision:
174:8bb9f3a33240
Child:
358:9d7ef901f004
Synchronized with git revision 5bf985ebc651a2c31cefabd9d62c51dc465ef60a



Full URL: https://github.com/mbedmicro/mbed/commit/5bf985ebc651a2c31cefabd9d62c51dc465ef60a/



[NUCLEO_L152RE/F103RB] Add LSE configuration for RTC

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 174:8bb9f3a33240 1 /* mbed Microcontroller Library - cmsis_nvic for LPC11U24
mbed_official 174:8bb9f3a33240 2 * Copyright (c) 2011 ARM Limited. All rights reserved.
mbed_official 174:8bb9f3a33240 3 *
mbed_official 174:8bb9f3a33240 4 * CMSIS-style functionality to support dynamic vectors
mbed_official 174:8bb9f3a33240 5 */
mbed_official 174:8bb9f3a33240 6 #include "cmsis_nvic.h"
mbed_official 174:8bb9f3a33240 7
mbed_official 174:8bb9f3a33240 8 #define NVIC_RAM_VECTOR_ADDRESS (0x10000000) // Vectors positioned at start of RAM
mbed_official 174:8bb9f3a33240 9 #define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash
mbed_official 174:8bb9f3a33240 10
mbed_official 174:8bb9f3a33240 11 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
mbed_official 174:8bb9f3a33240 12 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 174:8bb9f3a33240 13 uint32_t i;
mbed_official 174:8bb9f3a33240 14
mbed_official 174:8bb9f3a33240 15 // Copy and switch to dynamic vectors if the first time called
mbed_official 174:8bb9f3a33240 16 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
mbed_official 174:8bb9f3a33240 17 uint32_t *old_vectors = vectors;
mbed_official 174:8bb9f3a33240 18 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 174:8bb9f3a33240 19 for (i=0; i<NVIC_NUM_VECTORS; i++) {
mbed_official 174:8bb9f3a33240 20 vectors[i] = old_vectors[i];
mbed_official 174:8bb9f3a33240 21 }
mbed_official 174:8bb9f3a33240 22 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 174:8bb9f3a33240 23 }
mbed_official 174:8bb9f3a33240 24 vectors[IRQn + 16] = vector;
mbed_official 174:8bb9f3a33240 25 }
mbed_official 174:8bb9f3a33240 26
mbed_official 174:8bb9f3a33240 27 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
mbed_official 174:8bb9f3a33240 28 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 174:8bb9f3a33240 29 return vectors[IRQn + 16];
mbed_official 174:8bb9f3a33240 30 }