Jan Wolfsberger / mbed-src-no-hal

mbed library sources that still uses the stm standard peripheral library

Fork of mbed-src by Reinhold Schaefer

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 }