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Last commit 20 Feb 2019 by 
mbed official
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/cmsis_nvic.c@87:085cde657901, 2014-02-08 (annotated)
- Committer:
- mbed_official
- Date:
- Sat Feb 08 19:45:06 2014 +0000
- Revision:
- 87:085cde657901
Synchronized with git revision 9272cdeb45ec7e6077641536509413da8fd2ebc2
Full URL: https://github.com/mbedmicro/mbed/commit/9272cdeb45ec7e6077641536509413da8fd2ebc2/
Add NUCLEO_F401RE, improvements
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 87:085cde657901 | 1 | /* mbed Microcontroller Library |
| mbed_official | 87:085cde657901 | 2 | * CMSIS-style functionality to support dynamic vectors |
| mbed_official | 87:085cde657901 | 3 | ******************************************************************************* |
| mbed_official | 87:085cde657901 | 4 | * Copyright (c) 2014, STMicroelectronics |
| mbed_official | 87:085cde657901 | 5 | * All rights reserved. |
| mbed_official | 87:085cde657901 | 6 | * |
| mbed_official | 87:085cde657901 | 7 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 87:085cde657901 | 8 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 87:085cde657901 | 9 | * |
| mbed_official | 87:085cde657901 | 10 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 87:085cde657901 | 11 | * this list of conditions and the following disclaimer. |
| mbed_official | 87:085cde657901 | 12 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 87:085cde657901 | 13 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 87:085cde657901 | 14 | * and/or other materials provided with the distribution. |
| mbed_official | 87:085cde657901 | 15 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 87:085cde657901 | 16 | * may be used to endorse or promote products derived from this software |
| mbed_official | 87:085cde657901 | 17 | * without specific prior written permission. |
| mbed_official | 87:085cde657901 | 18 | * |
| mbed_official | 87:085cde657901 | 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 87:085cde657901 | 20 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 87:085cde657901 | 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 87:085cde657901 | 22 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 87:085cde657901 | 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 87:085cde657901 | 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 87:085cde657901 | 25 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 87:085cde657901 | 26 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 87:085cde657901 | 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 87:085cde657901 | 28 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 87:085cde657901 | 29 | ******************************************************************************* |
| mbed_official | 87:085cde657901 | 30 | */ |
| mbed_official | 87:085cde657901 | 31 | #include "cmsis_nvic.h" |
| mbed_official | 87:085cde657901 | 32 | |
| mbed_official | 87:085cde657901 | 33 | #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM |
| mbed_official | 87:085cde657901 | 34 | #define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash |
| mbed_official | 87:085cde657901 | 35 | |
| mbed_official | 87:085cde657901 | 36 | void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) { |
| mbed_official | 87:085cde657901 | 37 | uint32_t *vectors = (uint32_t *)SCB->VTOR; |
| mbed_official | 87:085cde657901 | 38 | uint32_t i; |
| mbed_official | 87:085cde657901 | 39 | |
| mbed_official | 87:085cde657901 | 40 | // Copy and switch to dynamic vectors if the first time called |
| mbed_official | 87:085cde657901 | 41 | if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) { |
| mbed_official | 87:085cde657901 | 42 | uint32_t *old_vectors = vectors; |
| mbed_official | 87:085cde657901 | 43 | vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS; |
| mbed_official | 87:085cde657901 | 44 | for (i=0; i<NVIC_NUM_VECTORS; i++) { |
| mbed_official | 87:085cde657901 | 45 | vectors[i] = old_vectors[i]; |
| mbed_official | 87:085cde657901 | 46 | } |
| mbed_official | 87:085cde657901 | 47 | SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS; |
| mbed_official | 87:085cde657901 | 48 | } |
| mbed_official | 87:085cde657901 | 49 | vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector; |
| mbed_official | 87:085cde657901 | 50 | } |
| mbed_official | 87:085cde657901 | 51 | |
| mbed_official | 87:085cde657901 | 52 | uint32_t NVIC_GetVector(IRQn_Type IRQn) { |
| mbed_official | 87:085cde657901 | 53 | uint32_t *vectors = (uint32_t*)SCB->VTOR; |
| mbed_official | 87:085cde657901 | 54 | return vectors[IRQn + NVIC_USER_IRQ_OFFSET]; |
| mbed_official | 87:085cde657901 | 55 | } |
