SDK Development / mbed-src

mbed SDK library sources

Fork of mbed-src by mbed official

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:

Import librarymbed

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_Freescale/TARGET_K20D5M/cmsis_nvic.c@68:41613245dfd7, 2013-12-26 (annotated)

Committer:
mbed_official
Date:
Thu Dec 26 13:00:06 2013 +0000
Revision:
68:41613245dfd7
Synchronized with git revision fba199a9c4445231b0f38e1e113c118182635546



Full URL: https://github.com/mbedmicro/mbed/commit/fba199a9c4445231b0f38e1e113c118182635546/



target K20D5M

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 68:41613245dfd7 1 /* mbed Microcontroller Library - cmsis_nvic for LPC11U24
mbed_official 68:41613245dfd7 2 * Copyright (c) 2011 ARM Limited. All rights reserved.
mbed_official 68:41613245dfd7 3 *
mbed_official 68:41613245dfd7 4 * CMSIS-style functionality to support dynamic vectors
mbed_official 68:41613245dfd7 5 */
mbed_official 68:41613245dfd7 6 #include "cmsis_nvic.h"
mbed_official 68:41613245dfd7 7
mbed_official 68:41613245dfd7 8 #define NVIC_RAM_VECTOR_ADDRESS (0x1FFFE000) // Vectors positioned at start of RAM
mbed_official 68:41613245dfd7 9 #define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash
mbed_official 68:41613245dfd7 10
mbed_official 68:41613245dfd7 11 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
mbed_official 68:41613245dfd7 12 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 68:41613245dfd7 13 uint32_t i;
mbed_official 68:41613245dfd7 14
mbed_official 68:41613245dfd7 15 // Copy and switch to dynamic vectors if the first time called
mbed_official 68:41613245dfd7 16 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
mbed_official 68:41613245dfd7 17 uint32_t *old_vectors = vectors;
mbed_official 68:41613245dfd7 18 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 68:41613245dfd7 19 for (i=0; i<NVIC_NUM_VECTORS; i++) {
mbed_official 68:41613245dfd7 20 vectors[i] = old_vectors[i];
mbed_official 68:41613245dfd7 21 }
mbed_official 68:41613245dfd7 22 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 68:41613245dfd7 23 }
mbed_official 68:41613245dfd7 24 vectors[IRQn + 16] = vector;
mbed_official 68:41613245dfd7 25 }
mbed_official 68:41613245dfd7 26
mbed_official 68:41613245dfd7 27 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
mbed_official 68:41613245dfd7 28 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 68:41613245dfd7 29 return vectors[IRQn + 16];
mbed_official 68:41613245dfd7 30 }