mbed library sources. Supersedes mbed-src.
Fork of mbed by
Diff: targets/cmsis/TARGET_NXP/TARGET_LPC408X/cmsis_nvic.c
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 0:9b334a45a8ff
--- a/targets/cmsis/TARGET_NXP/TARGET_LPC408X/cmsis_nvic.c Tue Aug 02 14:07:36 2016 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC408X/cmsis_nvic.c Fri Sep 02 15:07:44 2016 +0100 @@ -1,56 +1,56 @@ -/* mbed Microcontroller Library - * CMSIS-style functionality to support dynamic vectors - ******************************************************************************* - * Copyright (c) 2011 ARM Limited. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of ARM Limited nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - ******************************************************************************* - */ -#include "cmsis_nvic.h" - -#define NVIC_RAM_VECTOR_ADDRESS (0x10000000) // Location of vectors in RAM -#define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash - -void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) { - uint32_t *vectors = (uint32_t*)SCB->VTOR; - uint32_t i; - - // Copy and switch to dynamic vectors if the first time called - if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) { - uint32_t *old_vectors = vectors; - vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS; - for (i=0; i<NVIC_NUM_VECTORS; i++) { - vectors[i] = old_vectors[i]; - } - SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS; - } - vectors[IRQn + 16] = vector; -} - -uint32_t NVIC_GetVector(IRQn_Type IRQn) { - uint32_t *vectors = (uint32_t*)SCB->VTOR; - return vectors[IRQn + 16]; -} - +/* mbed Microcontroller Library + * CMSIS-style functionality to support dynamic vectors + ******************************************************************************* + * Copyright (c) 2011 ARM Limited. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of ARM Limited nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************* + */ +#include "cmsis_nvic.h" + +#define NVIC_RAM_VECTOR_ADDRESS (0x10000000) // Location of vectors in RAM +#define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash + +void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) { + uint32_t *vectors = (uint32_t*)SCB->VTOR; + uint32_t i; + + // Copy and switch to dynamic vectors if the first time called + if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) { + uint32_t *old_vectors = vectors; + vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS; + for (i=0; i<NVIC_NUM_VECTORS; i++) { + vectors[i] = old_vectors[i]; + } + SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS; + } + vectors[IRQn + 16] = vector; +} + +uint32_t NVIC_GetVector(IRQn_Type IRQn) { + uint32_t *vectors = (uint32_t*)SCB->VTOR; + return vectors[IRQn + 16]; +} +