diff options
| -rw-r--r-- | firmware/libboard/common/source/board_cstartup_gnu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/firmware/libboard/common/source/board_cstartup_gnu.c b/firmware/libboard/common/source/board_cstartup_gnu.c index 15c70dd..4b561ec 100644 --- a/firmware/libboard/common/source/board_cstartup_gnu.c +++ b/firmware/libboard/common/source/board_cstartup_gnu.c @@ -133,7 +133,11 @@ static void BootIntoApp(void) void (*appReset)(void);
pSrc = (unsigned int *) ((unsigned char *)IFLASH_ADDR + BOARD_DFU_BOOT_SIZE);
- SCB->VTOR = ((unsigned int)(pSrc)) | (0x0 << 7);
+ /* set vector table to application vector table (store at the beginning of the application) */
+ SCB->VTOR = (unsigned int)(pSrc);
+ /* set stack pointer to address provided in the beginning of the application (loaded into a register first) */
+ __asm__ volatile ("MSR msp,%0" : :"r"(*pSrc));
+ /* start application (by jumping to the reset function which address is stored as second entry of the vector table) */
appReset = (void(*)(void))pSrc[1];
g_dfu->state = DFU_STATE_appIDLE;
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