mbed library sources
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Diff: targets/cmsis/TARGET_Freescale/TARGET_K20D5M/cmsis_nvic.c
- Revision:
- 255:20b371a9491b
- Parent:
- 254:181b5e179739
- Child:
- 256:76fd9a263045
--- a/targets/cmsis/TARGET_Freescale/TARGET_K20D5M/cmsis_nvic.c Thu Jul 10 09:00:09 2014 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,30 +0,0 @@ -/* mbed Microcontroller Library - cmsis_nvic for LPC11U24 - * Copyright (c) 2011 ARM Limited. All rights reserved. - * - * CMSIS-style functionality to support dynamic vectors - */ -#include "cmsis_nvic.h" - -#define NVIC_RAM_VECTOR_ADDRESS (0x1FFFE000) // Vectors positioned at start of 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]; -}