Amit Gandhi / sensen_copy_2

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Fork of mbed-dev by mbed official

targets/TARGET_Atmel/TARGET_SAM_CortexM4/TARGET_SAMG55/device/cmsis_nvic.c@149:156823d33999, 2016-10-28 (annotated)

Committer:
<>
Date:
Fri Oct 28 11:17:30 2016 +0100
Revision:
149:156823d33999
Parent:
targets/cmsis/TARGET_Atmel/TARGET_SAM_CortexM4/TARGET_SAMG55/cmsis_nvic.c@107:414e9c822e99 
This updates the lib to the mbed lib v128



NOTE: This release includes a restructuring of the file and directory locations and thus some

include paths in your code may need updating accordingly.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 107:414e9c822e99 1 /* mbed Microcontroller Library
mbed_official 107:414e9c822e99 2 * CMSIS-style functionality to support dynamic vectors
mbed_official 107:414e9c822e99 3 *******************************************************************************
mbed_official 107:414e9c822e99 4 * Copyright (c) 2011 ARM Limited. All rights reserved.
mbed_official 107:414e9c822e99 5 * All rights reserved.
mbed_official 107:414e9c822e99 6 *
mbed_official 107:414e9c822e99 7 * Redistribution and use in source and binary forms, with or without
mbed_official 107:414e9c822e99 8 * modification, are permitted provided that the following conditions are met:
mbed_official 107:414e9c822e99 9 *
mbed_official 107:414e9c822e99 10 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 107:414e9c822e99 11 * this list of conditions and the following disclaimer.
mbed_official 107:414e9c822e99 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 107:414e9c822e99 13 * this list of conditions and the following disclaimer in the documentation
mbed_official 107:414e9c822e99 14 * and/or other materials provided with the distribution.
mbed_official 107:414e9c822e99 15 * 3. Neither the name of ARM Limited nor the names of its contributors
mbed_official 107:414e9c822e99 16 * may be used to endorse or promote products derived from this software
mbed_official 107:414e9c822e99 17 * without specific prior written permission.
mbed_official 107:414e9c822e99 18 *
mbed_official 107:414e9c822e99 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 107:414e9c822e99 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 107:414e9c822e99 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 107:414e9c822e99 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 107:414e9c822e99 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 107:414e9c822e99 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 107:414e9c822e99 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 107:414e9c822e99 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 107:414e9c822e99 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 107:414e9c822e99 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 107:414e9c822e99 29 *******************************************************************************
mbed_official 107:414e9c822e99 30 */
mbed_official 107:414e9c822e99 31 #include "cmsis_nvic.h"
mbed_official 107:414e9c822e99 32
mbed_official 107:414e9c822e99 33 #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
mbed_official 107:414e9c822e99 34 #define NVIC_FLASH_VECTOR_ADDRESS (0x00400000)// Initial vector position in flash
mbed_official 107:414e9c822e99 35
mbed_official 107:414e9c822e99 36 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector)
mbed_official 107:414e9c822e99 37 {
mbed_official 107:414e9c822e99 38 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 107:414e9c822e99 39 uint32_t i;
mbed_official 107:414e9c822e99 40
mbed_official 107:414e9c822e99 41 // Copy and switch to dynamic vectors if the first time called
mbed_official 107:414e9c822e99 42 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
mbed_official 107:414e9c822e99 43 uint32_t *old_vectors = vectors;
mbed_official 107:414e9c822e99 44 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 107:414e9c822e99 45 for (i=0; i<NVIC_NUM_VECTORS; i++) {
mbed_official 107:414e9c822e99 46 vectors[i] = old_vectors[i];
mbed_official 107:414e9c822e99 47 }
mbed_official 107:414e9c822e99 48 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 107:414e9c822e99 49 }
mbed_official 107:414e9c822e99 50 vectors[IRQn + 16] = vector;
mbed_official 107:414e9c822e99 51 }
mbed_official 107:414e9c822e99 52
mbed_official 107:414e9c822e99 53 uint32_t NVIC_GetVector(IRQn_Type IRQn)
mbed_official 107:414e9c822e99 54 {
mbed_official 107:414e9c822e99 55 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 107:414e9c822e99 56 return vectors[IRQn + 16];
mbed_official 107:414e9c822e99 57 }