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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_NUCLEO_F446RE/cmsis_nvic.c@613:bc40b8d2aec4, 2015-08-20 (annotated)

Committer:
mbed_official
Date:
Thu Aug 20 10:45:13 2015 +0100
Revision:
613:bc40b8d2aec4
Parent:
553:063b9f2f393c 
Synchronized with git revision 92ca8c7b60a283b6bb60eb65b183dac1599f0ade



Full URL: https://github.com/mbedmicro/mbed/commit/92ca8c7b60a283b6bb60eb65b183dac1599f0ade/



Nordic: update application start address in GCC linker script

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 553:063b9f2f393c 1 /* mbed Microcontroller Library
mbed_official 553:063b9f2f393c 2 * CMSIS-style functionality to support dynamic vectors
mbed_official 553:063b9f2f393c 3 *******************************************************************************
mbed_official 613:bc40b8d2aec4 4 * Copyright (c) 2015, STMicroelectronics
mbed_official 553:063b9f2f393c 5 * All rights reserved.
mbed_official 553:063b9f2f393c 6 *
mbed_official 553:063b9f2f393c 7 * Redistribution and use in source and binary forms, with or without
mbed_official 553:063b9f2f393c 8 * modification, are permitted provided that the following conditions are met:
mbed_official 553:063b9f2f393c 9 *
mbed_official 553:063b9f2f393c 10 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 553:063b9f2f393c 11 * this list of conditions and the following disclaimer.
mbed_official 553:063b9f2f393c 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 553:063b9f2f393c 13 * this list of conditions and the following disclaimer in the documentation
mbed_official 553:063b9f2f393c 14 * and/or other materials provided with the distribution.
mbed_official 553:063b9f2f393c 15 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 553:063b9f2f393c 16 * may be used to endorse or promote products derived from this software
mbed_official 553:063b9f2f393c 17 * without specific prior written permission.
mbed_official 553:063b9f2f393c 18 *
mbed_official 553:063b9f2f393c 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 553:063b9f2f393c 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 553:063b9f2f393c 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 553:063b9f2f393c 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 553:063b9f2f393c 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 553:063b9f2f393c 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 553:063b9f2f393c 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 553:063b9f2f393c 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 553:063b9f2f393c 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 553:063b9f2f393c 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 553:063b9f2f393c 29 *******************************************************************************
mbed_official 553:063b9f2f393c 30 */
mbed_official 553:063b9f2f393c 31 #include "cmsis_nvic.h"
mbed_official 553:063b9f2f393c 32
mbed_official 553:063b9f2f393c 33 #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
mbed_official 553:063b9f2f393c 34 #define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash
mbed_official 553:063b9f2f393c 35
mbed_official 553:063b9f2f393c 36 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
mbed_official 553:063b9f2f393c 37 uint32_t *vectors = (uint32_t *)SCB->VTOR;
mbed_official 553:063b9f2f393c 38 uint32_t i;
mbed_official 553:063b9f2f393c 39
mbed_official 553:063b9f2f393c 40 // Copy and switch to dynamic vectors if the first time called
mbed_official 553:063b9f2f393c 41 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
mbed_official 553:063b9f2f393c 42 uint32_t *old_vectors = vectors;
mbed_official 553:063b9f2f393c 43 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 553:063b9f2f393c 44 for (i=0; i<NVIC_NUM_VECTORS; i++) {
mbed_official 553:063b9f2f393c 45 vectors[i] = old_vectors[i];
mbed_official 553:063b9f2f393c 46 }
mbed_official 553:063b9f2f393c 47 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 553:063b9f2f393c 48 }
mbed_official 553:063b9f2f393c 49 vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector;
mbed_official 553:063b9f2f393c 50 }
mbed_official 553:063b9f2f393c 51
mbed_official 553:063b9f2f393c 52 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
mbed_official 553:063b9f2f393c 53 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 553:063b9f2f393c 54 return vectors[IRQn + NVIC_USER_IRQ_OFFSET];
mbed_official 553:063b9f2f393c 55 }