lzbp li / mbed-stm32l0l1-src-1

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of mbed-stm32l0/l1-src by lzbp li

vendor/Freescale/KL25Z/cmsis/cmsis_nvic.c@10:3bc89ef62ce7, 2013-06-14 (annotated)

Committer:
emilmont
Date:
Fri Jun 14 17:49:17 2013 +0100
Revision:
10:3bc89ef62ce7
Unify mbed library sources

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library - cmsis_nvic for LPC11U24
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2011 ARM Limited. All rights reserved.
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * CMSIS-style functionality to support dynamic vectors
emilmont 10:3bc89ef62ce7 5 */
emilmont 10:3bc89ef62ce7 6 #include "cmsis_nvic.h"
emilmont 10:3bc89ef62ce7 7
emilmont 10:3bc89ef62ce7 8 #define NVIC_NUM_VECTORS (16 + 32) // CORE + MCU Peripherals
emilmont 10:3bc89ef62ce7 9 #define NVIC_RAM_VECTOR_ADDRESS (0x1FFFF000) // Vectors positioned at start of RAM
emilmont 10:3bc89ef62ce7 10
emilmont 10:3bc89ef62ce7 11 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
emilmont 10:3bc89ef62ce7 12 static volatile uint32_t* vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
emilmont 10:3bc89ef62ce7 13 int i;
emilmont 10:3bc89ef62ce7 14
emilmont 10:3bc89ef62ce7 15 // Copy and switch to dynamic vectors if first time called
emilmont 10:3bc89ef62ce7 16 if (SCB->VTOR != NVIC_RAM_VECTOR_ADDRESS) {
emilmont 10:3bc89ef62ce7 17 uint32_t *old_vectors = (uint32_t*)SCB->VTOR;
emilmont 10:3bc89ef62ce7 18 for (i=0; i<NVIC_NUM_VECTORS; i++) {
emilmont 10:3bc89ef62ce7 19 vectors[i] = old_vectors[i];
emilmont 10:3bc89ef62ce7 20 }
emilmont 10:3bc89ef62ce7 21 SCB->VTOR = (uint32_t)vectors;
emilmont 10:3bc89ef62ce7 22 }
emilmont 10:3bc89ef62ce7 23
emilmont 10:3bc89ef62ce7 24 vectors[IRQn + 16] = vector;
emilmont 10:3bc89ef62ce7 25 }
emilmont 10:3bc89ef62ce7 26
emilmont 10:3bc89ef62ce7 27 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
emilmont 10:3bc89ef62ce7 28 uint32_t *vectors = (uint32_t*)SCB->VTOR;
emilmont 10:3bc89ef62ce7 29 return vectors[IRQn + 16];
emilmont 10:3bc89ef62ce7 30 }