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Diff: targets/TARGET_Maxim/TARGET_MAX32625/device/cmsis_nvic.c
- Revision:
- 150:02e0a0aed4ec
diff -r 156823d33999 -r 02e0a0aed4ec targets/TARGET_Maxim/TARGET_MAX32625/device/cmsis_nvic.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_Maxim/TARGET_MAX32625/device/cmsis_nvic.c Tue Nov 08 17:45:16 2016 +0000 @@ -0,0 +1,65 @@ +/******************************************************************************* + * Copyright (c) 2016 Maxim Integrated Products, Inc., All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES + * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the name of Maxim Integrated + * Products, Inc. shall not be used except as stated in the Maxim Integrated + * Products, Inc. Branding Policy. + * + * The mere transfer of this software does not imply any licenses + * of trade secrets, proprietary technology, copyrights, patents, + * trademarks, maskwork rights, or any other form of intellectual + * property whatsoever. Maxim Integrated Products, Inc. retains all + * ownership rights. + ******************************************************************************* + */ + +#include "cmsis_nvic.h" + +#if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_ARM_STD) +__attribute__((aligned(256))) +#endif +#if defined(TOOLCHAIN_IAR) +#pragma data_alignment=256 +#endif +static void (*ramVectorTable[MXC_IRQ_COUNT])(void); + +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 != (uint32_t)ramVectorTable) { + uint32_t *old_vectors = (uint32_t*)SCB->VTOR; + vectors = (uint32_t*)ramVectorTable; + for (i = 0; i < NVIC_NUM_VECTORS; i++) { + vectors[i] = old_vectors[i]; + } + SCB->VTOR = (uint32_t)ramVectorTable; + } + vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector; +} + +uint32_t NVIC_GetVector(IRQn_Type IRQn) +{ + uint32_t *vectors = (uint32_t*)SCB->VTOR; + return vectors[IRQn + NVIC_USER_IRQ_OFFSET]; +}