diff options
Diffstat (limited to 'libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c')
| -rw-r--r-- | libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c index c2816d0..cc527ae 100644 --- a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c +++ b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c @@ -75,6 +75,8 @@ #define HSI_VALUE ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/ #endif /* HSI_VALUE */ +extern uint32_t CRYPTECH_FIRMWARE_START; /* defined in the linker script (STM32F429BI.ld) */ + /** * @} */ @@ -197,11 +199,14 @@ void SystemInit(void) #endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */ /* Configure the Vector Table location add offset address ------------------*/ + /* cryptech: Don't change VTOR if it is already set up by the bootloader */ + if (SCB->VTOR != CRYPTECH_FIRMWARE_START) { #ifdef VECT_TAB_SRAM - SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */ + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */ #else - SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */ + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */ #endif + } /* Configure the Cube driver */ SystemCoreClock = 16000000; // At this stage the HSI is used as system clock |