Renesas / mbed-src_GR-PEACH_rev_b

mbed library sources for GR-PEACH rev.B.

Fork of mbed-src by mbed official

targets/cmsis/TARGET_Freescale/TARGET_KL46Z/cmsis_nvic.c@33:e214068ab66c, 2013-10-07 (annotated)

Committer:
mbed_official
Date:
Mon Oct 07 09:15:08 2013 +0100
Revision:
33:e214068ab66c
Parent:
31:42176bc3c368 
Synchronized with git revision 53edc82f7373bbfa01a161700524765f52fdb444

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 33:e214068ab66c 5 */
mbed_official 31:42176bc3c368 6 #include "cmsis_nvic.h"
mbed_official 31:42176bc3c368 7
mbed_official 33:e214068ab66c 8 #define NVIC_RAM_VECTOR_ADDRESS (0x1FFFE000) // 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 }