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_STM/TARGET_STM32L1/TARGET_XDOT_L151CC/cmsis_nvic.c@148:21d94c44109e, 2016-09-30 (annotated)

Committer:
<>
Date:
Fri Sep 30 18:07:01 2016 +0100
Revision:
148:21d94c44109e
This updates the lib to the mbed lib v127

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 148:21d94c44109e 1 /* mbed Microcontroller Library
<> 148:21d94c44109e 2 * CMSIS-style functionality to support dynamic vectors
<> 148:21d94c44109e 3 *******************************************************************************
<> 148:21d94c44109e 4 * Copyright (c) 2015, STMicroelectronics
<> 148:21d94c44109e 5 * All rights reserved.
<> 148:21d94c44109e 6 *
<> 148:21d94c44109e 7 * Redistribution and use in source and binary forms, with or without
<> 148:21d94c44109e 8 * modification, are permitted provided that the following conditions are met:
<> 148:21d94c44109e 9 *
<> 148:21d94c44109e 10 * 1. Redistributions of source code must retain the above copyright notice,
<> 148:21d94c44109e 11 * this list of conditions and the following disclaimer.
<> 148:21d94c44109e 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 148:21d94c44109e 13 * this list of conditions and the following disclaimer in the documentation
<> 148:21d94c44109e 14 * and/or other materials provided with the distribution.
<> 148:21d94c44109e 15 * 3. Neither the name of STMicroelectronics nor the names of its contributors
<> 148:21d94c44109e 16 * may be used to endorse or promote products derived from this software
<> 148:21d94c44109e 17 * without specific prior written permission.
<> 148:21d94c44109e 18 *
<> 148:21d94c44109e 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 148:21d94c44109e 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 148:21d94c44109e 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 148:21d94c44109e 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 148:21d94c44109e 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 148:21d94c44109e 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 148:21d94c44109e 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 148:21d94c44109e 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 148:21d94c44109e 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 148:21d94c44109e 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 148:21d94c44109e 29 *******************************************************************************
<> 148:21d94c44109e 30 */
<> 148:21d94c44109e 31 #include "cmsis_nvic.h"
<> 148:21d94c44109e 32
<> 148:21d94c44109e 33 #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
<> 148:21d94c44109e 34 #define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash
<> 148:21d94c44109e 35
<> 148:21d94c44109e 36 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
<> 148:21d94c44109e 37 uint32_t *vectors = (uint32_t *)SCB->VTOR;
<> 148:21d94c44109e 38 uint32_t i;
<> 148:21d94c44109e 39
<> 148:21d94c44109e 40 // Copy and switch to dynamic vectors if the first time called
<> 148:21d94c44109e 41 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
<> 148:21d94c44109e 42 uint32_t *old_vectors = vectors;
<> 148:21d94c44109e 43 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
<> 148:21d94c44109e 44 for (i=0; i<NVIC_NUM_VECTORS; i++) {
<> 148:21d94c44109e 45 vectors[i] = old_vectors[i];
<> 148:21d94c44109e 46 }
<> 148:21d94c44109e 47 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
<> 148:21d94c44109e 48 }
<> 148:21d94c44109e 49 vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector;
<> 148:21d94c44109e 50 }
<> 148:21d94c44109e 51
<> 148:21d94c44109e 52 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
<> 148:21d94c44109e 53 uint32_t *vectors = (uint32_t*)SCB->VTOR;
<> 148:21d94c44109e 54 return vectors[IRQn + NVIC_USER_IRQ_OFFSET];
<> 148:21d94c44109e 55 }