startup_stm32f4xx.c File Reference

startup file for stm32f4xx More...

#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "stm32/system_stm32f4xx.h"
#include "stm32/stm32f4xx_misc.h"
#include "stm32/stm32f4xx_rcc.h"
#include "heivs/error.h"
#include "heivs/bsp.h"
#include "heivs/delay.h"
#include "heivs/config.h"
#include <time.h>
#include <sys/time.h>

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Data Structures
struct	vector_table_t

Functions
static void	init_ccm_ram (void)
	CCM RAM initialization. More...
static void	interrupts_init (void)
	Interrupts initializations. More...
static void	libc_init_array (void)
	Initialize newlib c++ runtime.
static void	init_bss (void)
	zeroes the .bss section
static void	init_data (void)
	Initialize (copy from flash) the .data section.
static void	fix_rtc (void)
static void	workaround_dfu_loader (void)
	Workaround DFU problem. More...
void	Reset_Handler (void)
	Program start (at reset) More...
void	HardFaultHelper (volatile struct hardfault_regs_t *regs_when_hardfault)

Variables
uint32_t	_stack_start
	Stack base, set by the linker script.
const struct vector_table_t	gVectors
	The vector table, placed in the .isr_vector section. More...

Detailed Description

startup file for stm32f4xx

Author

marc dot pignat at hevs dot ch

ARM Holdings said there is no need for assembly with Cortex-Mx, so here is the startup code, entirely in C ;)

Warning

The only thing that is ready before Reset is the stack. .bss and .data sections aren't ready.

The syntax is GCC specific, but in any case the assembler syntax is not portable

This file is heavily dependent on the linker scrpit and on newlib

Definition in file startup_stm32f4xx.c.

Function Documentation

void HardFaultHelper

(

volatile struct hardfault_regs_t *

regs_when_hardfault

)

Default weak handlers for all interrupts and exceptions.

Real handlers will be set by NVIC_Init()

Definition at line 448 of file startup_stm32f4xx.c.

References breakpoint, bsp_fatal(), debugger_is_connected, and ERROR_BAD_STATE.

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Variable Documentation

const struct vector_table_t gVectors

The vector table, placed in the .isr_vector section.

This table will be placed by the linker at the beginning of the flash, which is mapped to address 0x00000000 when the boot0 pin is at zero.

Definition at line 611 of file startup_stm32f4xx.c.