Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_ARM_SSG/TARGET_IOTSS_BEID/cmsis_nvic.c@80:bdf1132a57cf, 2016-03-02 (annotated)

Committer:
mbed_official
Date:
Wed Mar 02 14:30:11 2016 +0000
Revision:
80:bdf1132a57cf
Synchronized with git revision de3b14ec9234d586b155fd24badc22775489a3dc



Full URL: https://github.com/mbedmicro/mbed/commit/de3b14ec9234d586b155fd24badc22775489a3dc/



latest changes to add arduino support, plus fixes for IOTSS BEID

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 80:bdf1132a57cf 1 /* MPS2 CMSIS Library
mbed_official 80:bdf1132a57cf 2 *
mbed_official 80:bdf1132a57cf 3 * Copyright (c) 2006-2016 ARM Limited
mbed_official 80:bdf1132a57cf 4 * All rights reserved.
mbed_official 80:bdf1132a57cf 5 *
mbed_official 80:bdf1132a57cf 6 * Redistribution and use in source and binary forms, with or without
mbed_official 80:bdf1132a57cf 7 * modification, are permitted provided that the following conditions are met:
mbed_official 80:bdf1132a57cf 8 *
mbed_official 80:bdf1132a57cf 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 80:bdf1132a57cf 10 * this list of conditions and the following disclaimer.
mbed_official 80:bdf1132a57cf 11 *
mbed_official 80:bdf1132a57cf 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 80:bdf1132a57cf 13 * this list of conditions and the following disclaimer in the documentation
mbed_official 80:bdf1132a57cf 14 * and/or other materials provided with the distribution.
mbed_official 80:bdf1132a57cf 15 *
mbed_official 80:bdf1132a57cf 16 * 3. Neither the name of the copyright holder nor the names of its contributors
mbed_official 80:bdf1132a57cf 17 * may be used to endorse or promote products derived from this software without
mbed_official 80:bdf1132a57cf 18 * specific prior written permission.
mbed_official 80:bdf1132a57cf 19 *
mbed_official 80:bdf1132a57cf 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 80:bdf1132a57cf 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 80:bdf1132a57cf 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mbed_official 80:bdf1132a57cf 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
mbed_official 80:bdf1132a57cf 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mbed_official 80:bdf1132a57cf 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mbed_official 80:bdf1132a57cf 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official 80:bdf1132a57cf 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official 80:bdf1132a57cf 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mbed_official 80:bdf1132a57cf 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbed_official 80:bdf1132a57cf 30 * POSSIBILITY OF SUCH DAMAGE.
mbed_official 80:bdf1132a57cf 31 *******************************************************************************
mbed_official 80:bdf1132a57cf 32 * CMSIS-style functionality to support dynamic vectors
mbed_official 80:bdf1132a57cf 33 *******************************************************************************/
mbed_official 80:bdf1132a57cf 34 #include "cmsis_nvic.h"
mbed_official 80:bdf1132a57cf 35
mbed_official 80:bdf1132a57cf 36 #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Location of vectors in RAM
mbed_official 80:bdf1132a57cf 37 #define NVIC_FLASH_VECTOR_ADDRESS (0x00000000) // Initial vector position in flash
mbed_official 80:bdf1132a57cf 38
mbed_official 80:bdf1132a57cf 39 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
mbed_official 80:bdf1132a57cf 40 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 80:bdf1132a57cf 41 uint32_t i;
mbed_official 80:bdf1132a57cf 42
mbed_official 80:bdf1132a57cf 43 // Copy and switch to dynamic vectors if the first time called
mbed_official 80:bdf1132a57cf 44 if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
mbed_official 80:bdf1132a57cf 45 uint32_t *old_vectors = vectors;
mbed_official 80:bdf1132a57cf 46 vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 80:bdf1132a57cf 47 for (i=0; i<NVIC_NUM_VECTORS; i++) {
mbed_official 80:bdf1132a57cf 48 vectors[i] = old_vectors[i];
mbed_official 80:bdf1132a57cf 49 }
mbed_official 80:bdf1132a57cf 50 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 80:bdf1132a57cf 51 }
mbed_official 80:bdf1132a57cf 52 vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector;
mbed_official 80:bdf1132a57cf 53 }
mbed_official 80:bdf1132a57cf 54
mbed_official 80:bdf1132a57cf 55 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
mbed_official 80:bdf1132a57cf 56 uint32_t *vectors = (uint32_t*)SCB->VTOR;
mbed_official 80:bdf1132a57cf 57 return vectors[IRQn + NVIC_USER_IRQ_OFFSET];
mbed_official 80:bdf1132a57cf 58 }