SDK Development / mbed-src

mbed SDK library sources

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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_KL46Z/cmsis_nvic.c@31:42176bc3c368, 2013-09-25 (annotated)

Committer:
mbed_official
Date:
Wed Sep 25 11:30:05 2013 +0100
Revision:
31:42176bc3c368
Child:
33:e214068ab66c
Synchronized with git revision f580c008b139a952d38ac5c7c53bbae375739c67

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 31:42176bc3c368 1 /* mbed Microcontroller Library - cmsis_nvic for LPC11U24
mbed_official 31:42176bc3c368 2 * Copyright (c) 2011 ARM Limited. All rights reserved.
mbed_official 31:42176bc3c368 3 *
mbed_official 31:42176bc3c368 4 * CMSIS-style functionality to support dynamic vectors
mbed_official 31:42176bc3c368 5 */
mbed_official 31:42176bc3c368 6 #include "cmsis_nvic.h"
mbed_official 31:42176bc3c368 7
mbed_official 31:42176bc3c368 8 #define NVIC_RAM_VECTOR_ADDRESS (0x1FFFF000) // Vectors positioned at start of RAM
mbed_official 31:42176bc3c368 9 #define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash
mbed_official 31:42176bc3c368 10
mbed_official 31:42176bc3c368 11 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
mbed_official 31:42176bc3c368 12 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 31:42176bc3c368 13 uint32_t i;
mbed_official 31:42176bc3c368 14
mbed_official 31:42176bc3c368 15 // Copy and switch to dynamic vectors if the first time called
mbed_official 31:42176bc3c368 16 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
mbed_official 31:42176bc3c368 17 uint32_t *old_vectors = vectors;
mbed_official 31:42176bc3c368 18 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 31:42176bc3c368 19 for (i=0; i<NVIC_NUM_VECTORS; i++) {
mbed_official 31:42176bc3c368 20 vectors[i] = old_vectors[i];
mbed_official 31:42176bc3c368 21 }
mbed_official 31:42176bc3c368 22 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 31:42176bc3c368 23 }
mbed_official 31:42176bc3c368 24 vectors[IRQn + 16] = vector;
mbed_official 31:42176bc3c368 25 }
mbed_official 31:42176bc3c368 26
mbed_official 31:42176bc3c368 27 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
mbed_official 31:42176bc3c368 28 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 31:42176bc3c368 29 return vectors[IRQn + 16];
mbed_official 31:42176bc3c368 30 }