mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/cmsis/TARGET_NXP/TARGET_LPC176X/cmsis_nvic.c@147:30b64687e01f, 2016-09-16 (annotated)

Committer:
<>
Date:
Fri Sep 16 16:24:25 2016 +0100
Revision:
147:30b64687e01f
Parent:
144:ef7eb2e8f9f7 
This updates the lib to the mbed lib v126

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * CMSIS-style functionality to support dynamic vectors
<> 144:ef7eb2e8f9f7 3 *******************************************************************************
<> 144:ef7eb2e8f9f7 4 * Copyright (c) 2011 ARM Limited. All rights reserved.
<> 144:ef7eb2e8f9f7 5 * All rights reserved.
<> 144:ef7eb2e8f9f7 6 *
<> 144:ef7eb2e8f9f7 7 * Redistribution and use in source and binary forms, with or without
<> 144:ef7eb2e8f9f7 8 * modification, are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * 1. Redistributions of source code must retain the above copyright notice,
<> 144:ef7eb2e8f9f7 11 * this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 144:ef7eb2e8f9f7 13 * this list of conditions and the following disclaimer in the documentation
<> 144:ef7eb2e8f9f7 14 * and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 15 * 3. Neither the name of ARM Limited nor the names of its contributors
<> 144:ef7eb2e8f9f7 16 * may be used to endorse or promote products derived from this software
<> 144:ef7eb2e8f9f7 17 * without specific prior written permission.
<> 144:ef7eb2e8f9f7 18 *
<> 144:ef7eb2e8f9f7 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 144:ef7eb2e8f9f7 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 144:ef7eb2e8f9f7 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 144:ef7eb2e8f9f7 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 144:ef7eb2e8f9f7 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 144:ef7eb2e8f9f7 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 144:ef7eb2e8f9f7 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 29 *******************************************************************************
<> 144:ef7eb2e8f9f7 30 */
<> 144:ef7eb2e8f9f7 31 #include "cmsis_nvic.h"
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 #define NVIC_RAM_VECTOR_ADDRESS (0x10000000) // Location of vectors in RAM
<> 144:ef7eb2e8f9f7 34 #define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
<> 144:ef7eb2e8f9f7 37 uint32_t *vectors = (uint32_t*)SCB->VTOR;
<> 144:ef7eb2e8f9f7 38 uint32_t i;
<> 144:ef7eb2e8f9f7 39
<> 144:ef7eb2e8f9f7 40 // Copy and switch to dynamic vectors if the first time called
<> 144:ef7eb2e8f9f7 41 if (SCB->VTOR < NVIC_RAM_VECTOR_ADDRESS) {
<> 144:ef7eb2e8f9f7 42 uint32_t *old_vectors = vectors;
<> 144:ef7eb2e8f9f7 43 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
<> 144:ef7eb2e8f9f7 44 for (i=0; i<NVIC_NUM_VECTORS; i++) {
<> 144:ef7eb2e8f9f7 45 vectors[i] = old_vectors[i];
<> 144:ef7eb2e8f9f7 46 }
<> 144:ef7eb2e8f9f7 47 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
<> 144:ef7eb2e8f9f7 48 }
<> 144:ef7eb2e8f9f7 49 vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector;
<> 144:ef7eb2e8f9f7 50 }
<> 144:ef7eb2e8f9f7 51
<> 144:ef7eb2e8f9f7 52 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
<> 144:ef7eb2e8f9f7 53 uint32_t *vectors = (uint32_t*)SCB->VTOR;
<> 144:ef7eb2e8f9f7 54 return vectors[IRQn + NVIC_USER_IRQ_OFFSET];
<> 144:ef7eb2e8f9f7 55 }
<> 144:ef7eb2e8f9f7 56