mbed SDK library sources
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Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.
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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Revision 39:6f0d2ff04ac3, committed 2013-10-25
- Comitter:
- mbed_official
- Date:
- Fri Oct 25 13:30:04 2013 +0100
- Parent:
- 38:340917a6c27d
- Child:
- 40:5fa4b7c54c1d
- Commit message:
- Synchronized with git revision 7a15854fb8d9be2511f9147b578e93525f1a3f1a
Changed in this revision
targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c | Show annotated file Show diff for this revision Revisions of this file |
--- a/targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c Fri Oct 25 13:00:07 2013 +0100 +++ b/targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c Fri Oct 25 13:30:04 2013 +0100 @@ -6,20 +6,22 @@ #include "cmsis_nvic.h" #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Location of vectors in RAM -#define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash + +static unsigned char vtor_relocated; 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 (!vtor_relocated) { 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; + vtor_relocated = 1; } vectors[IRQn + 16] = vector; }