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This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F1/TARGET_NUCLEO_F103RB/cmsis_nvic.c@635:a11c0372f0ba, 2015-09-30 (annotated)

Committer:
mbed_official
Date:
Wed Sep 30 17:00:09 2015 +0100
Revision:
635:a11c0372f0ba
Parent:
489:119543c9f674 
Synchronized with git revision d29c98dae61be0946ddf3a3c641c7726056f9452



Full URL: https://github.com/mbedmicro/mbed/commit/d29c98dae61be0946ddf3a3c641c7726056f9452/



Added support for SAMW25

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 70:c1fbde68b492 1 /* mbed Microcontroller Library
mbed_official 70:c1fbde68b492 2 * CMSIS-style functionality to support dynamic vectors
mbed_official 70:c1fbde68b492 3 *******************************************************************************
mbed_official 70:c1fbde68b492 4 * Copyright (c) 2014, STMicroelectronics
mbed_official 70:c1fbde68b492 5 * All rights reserved.
mbed_official 70:c1fbde68b492 6 *
mbed_official 70:c1fbde68b492 7 * Redistribution and use in source and binary forms, with or without
mbed_official 70:c1fbde68b492 8 * modification, are permitted provided that the following conditions are met:
mbed_official 52:a51c77007319 9 *
mbed_official 70:c1fbde68b492 10 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 70:c1fbde68b492 11 * this list of conditions and the following disclaimer.
mbed_official 70:c1fbde68b492 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 70:c1fbde68b492 13 * this list of conditions and the following disclaimer in the documentation
mbed_official 70:c1fbde68b492 14 * and/or other materials provided with the distribution.
mbed_official 70:c1fbde68b492 15 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 70:c1fbde68b492 16 * may be used to endorse or promote products derived from this software
mbed_official 70:c1fbde68b492 17 * without specific prior written permission.
mbed_official 70:c1fbde68b492 18 *
mbed_official 70:c1fbde68b492 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 70:c1fbde68b492 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 70:c1fbde68b492 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 70:c1fbde68b492 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 70:c1fbde68b492 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 70:c1fbde68b492 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 70:c1fbde68b492 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 70:c1fbde68b492 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 70:c1fbde68b492 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 70:c1fbde68b492 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 70:c1fbde68b492 29 *******************************************************************************
mbed_official 52:a51c77007319 30 */
mbed_official 52:a51c77007319 31 #include "cmsis_nvic.h"
mbed_official 52:a51c77007319 32
mbed_official 52:a51c77007319 33 #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
mbed_official 52:a51c77007319 34 #define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash
mbed_official 52:a51c77007319 35
mbed_official 52:a51c77007319 36 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
mbed_official 52:a51c77007319 37 uint32_t *vectors = (uint32_t *)SCB->VTOR;
mbed_official 52:a51c77007319 38 uint32_t i;
mbed_official 52:a51c77007319 39
mbed_official 52:a51c77007319 40 // Copy and switch to dynamic vectors if the first time called
mbed_official 52:a51c77007319 41 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
mbed_official 52:a51c77007319 42 uint32_t *old_vectors = vectors;
mbed_official 52:a51c77007319 43 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 52:a51c77007319 44 for (i=0; i<NVIC_NUM_VECTORS; i++) {
mbed_official 52:a51c77007319 45 vectors[i] = old_vectors[i];
mbed_official 52:a51c77007319 46 }
mbed_official 52:a51c77007319 47 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 52:a51c77007319 48 }
mbed_official 52:a51c77007319 49 vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector;
mbed_official 52:a51c77007319 50 }
mbed_official 52:a51c77007319 51
mbed_official 52:a51c77007319 52 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
mbed_official 52:a51c77007319 53 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 52:a51c77007319 54 return vectors[IRQn + NVIC_USER_IRQ_OFFSET];
mbed_official 52:a51c77007319 55 }