diff options
Diffstat (limited to '02-usart/src/core/init.c')
-rw-r--r-- | 02-usart/src/core/init.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/02-usart/src/core/init.c b/02-usart/src/core/init.c deleted file mode 100644 index 0a7cb7f..0000000 --- a/02-usart/src/core/init.c +++ /dev/null @@ -1,49 +0,0 @@ -#include "arch.h" -#include "core/system.h" - -/* Forward-declare the main function. This is implemented in main.c. */ -void main(); - -/* These are defined in the linker script. */ - -#ifdef ARCH_STM32L4 -extern uint32_t INIT_DATA_VALUES; -extern uint32_t DATA_SEGMENT_START; -extern uint32_t DATA_SEGMENT_STOP; -extern uint32_t BSS_START; -extern uint32_t BSS_END; - -/* - * Runs before main. Initializes the data and bss segments by loading them - * into memory. - */ -_Noreturn void on_reset() -{ - uint32_t* src; - uint32_t* dest; - - src = &INIT_DATA_VALUES; - dest = &DATA_SEGMENT_START; - - /* Copy the values from flash into the data segment. */ - while (dest != &DATA_SEGMENT_STOP) { - *(dest++) = *(src++); - } - - /* Everything in the BSS segment is set to zero. */ - dest = &BSS_START; - while (dest != &BSS_END) { - *(dest++) = 0; - } - - /* Set the vector offset table to be at the start - * of FLASH memory. */ - SCB.vto_r = 0x08000000; - - /* Jump to main. */ - main(); - - for(;;); -} - -#endif /* ARCH_STM32L4 */ |