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Copy NVIC to RAM from anywhere in flash 

Copy the NVIC from any address below RAM, not just at 0x0.  This is helpful
when using a bootloader, which must have its own vector table at 0x0.  Identical
to ebcee71 for TARGET_KL46Z.

fix commit id
pull/1388/head
al177 2015-10-21 10:17:43 -05:00
parent 15e4409db1
commit aa6ad1c524
1 changed files with 2 additions and 2 deletions
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4
libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_K22F/cmsis_nvic.c
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@ -31,14 +31,14 @@
#include "cmsis_nvic.h"
#define NVIC_RAM_VECTOR_ADDRESS (0x1FFF0000) // Vectors positioned at start of RAM
#define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash
#define NVIC_FLASH_VECTOR_ADDRESS (__vector_table) // 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) {
if (SCB->VTOR < NVIC_RAM_VECTOR_ADDRESS) {
uint32_t *old_vectors = vectors;
vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
for (i=0; i<NVIC_NUM_VECTORS; i++) {