marc
/
RIOT
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

cpu/stm32f3: optimization of startup code

Browse Source 
- make use of common startup code
- make use of common exception handlers
- renamed startup.c to vectors.c
dev/timer
Hauke Petersen 8 years ago
parent 5eb9b73cd6
commit bdb708a39e
2 changed files with 204 additions and 286 deletions
Show Stats Download Patch File Download Diff File

286
cpu/stm32f3/startup.c
Unescape Escape View File

@ -1,286 +0,0 @@
/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f3
* @{
*
* @file
* @brief Startup code and interrupt vector definition
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdint.h>
#include "board.h"
/**
* memory markers as defined in the linker script
*/
extern uint32_t _sfixed;
extern uint32_t _efixed;
extern uint32_t _etext;
extern uint32_t _srelocate;
extern uint32_t _erelocate;
extern uint32_t _szero;
extern uint32_t _ezero;
extern uint32_t _sstack;
extern uint32_t _estack;
/**
* @brief functions for initializing the board, std-lib and kernel
*/
extern void board_init(void);
extern void kernel_init(void);
extern void __libc_init_array(void);
/**
* @brief This function is the entry point after a system reset
*
* After a system reset, the following steps are necessary and carried out:
* 1. load data section from flash to ram
* 2. overwrite uninitialized data section (BSS) with zeros
* 3. initialize the newlib
* 4. initialize the board (sync clock, setup std-IO)
* 5. initialize and start RIOTs kernel
*/
void reset_handler(void)
{
uint32_t *dst;
uint32_t *src = &_etext;
/* load data section from flash to ram */
for (dst = &_srelocate; dst < &_erelocate; ) {
*(dst++) = *(src++);
}
/* default bss section to zero */
for (dst = &_szero; dst < &_ezero; ) {
*(dst++) = 0;
}
/* initialize the board and startup the kernel */
board_init();
/* initialize std-c library (this should be done after board_init) */
__libc_init_array();
/* startup the kernel */
kernel_init();
}
/**
* @brief Default handler is called in case no interrupt handler was defined
*/
void dummy_handler(void)
{
while (1) {asm ("nop");}
}
void isr_nmi(void)
{
while (1) {asm ("nop");}
}
void isr_mem_manage(void)
{
while (1) {asm ("nop");}
}
void isr_debug_mon(void)
{
while (1) {asm ("nop");}
}
void isr_hard_fault(void)
{
while (1) {asm ("nop");}
}
void isr_bus_fault(void)
{
while (1) {asm ("nop");}
}
void isr_usage_fault(void)
{
while (1) {asm ("nop");}
}
/* Cortex-M specific interrupt vectors */
void isr_svc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_pendsv(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_systick(void) __attribute__ ((weak, alias("dummy_handler")));
/* STM32F3 specific interrupt vector */
void isr_wwdg(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_pvd(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tamp_stamp(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rtc_wkup(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_flash(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rcc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_channel1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_channel2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_channel3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_channel4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_channel5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_channel6(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_channel7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_adc1_2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usb_hp_can_tx(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usb_lp_can_rx0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can_rx1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can_sce(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_brk_tim15(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_up_tim16(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_trg_com_tim17(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_cc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c1_ev(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c1_er(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c2_ev(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c2_er(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_spi1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_spi2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usart1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usart2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usart3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rtc_alarm(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usbwakeup(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_brk(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_up(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_trg_com(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_cc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_adc3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_spi3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_uart4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_uart5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim6_dac(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_channel1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_channel2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_channel3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_channel4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_channel5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_adc4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_comp1_2_3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_comp4_5_6(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_comp7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usb_hp(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usb_lp(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usbwakeup_rmp(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_fpu(void) __attribute__ ((weak, alias("dummy_handler")));
/* interrupt vector table */
__attribute__ ((section(".vectors")))
const void *interrupt_vector[] = {
/* Stack pointer */
(void*) (&_estack), /* pointer to the top of the empty stack */
/* Cortex-M4 handlers */
(void*) reset_handler, /* */
(void*) isr_nmi, /* */
(void*) isr_hard_fault, /* */
(void*) isr_mem_manage, /* */
(void*) isr_bus_fault, /* */
(void*) isr_usage_fault, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_svc, /* */
(void*) isr_debug_mon, /* */
(void*) (0UL), /* reserved */
(void*) isr_pendsv, /* */
(void*) isr_systick, /* */
/* STMF3 specific peripheral handlers */
(void*) isr_wwdg, /* */
(void*) isr_pvd, /* */
(void*) isr_tamp_stamp, /* */
(void*) isr_rtc_wkup, /* */
(void*) isr_flash, /* */
(void*) isr_rcc, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_dma1_channel1, /* */
(void*) isr_dma1_channel2, /* */
(void*) isr_dma1_channel3, /* */
(void*) isr_dma1_channel4, /* */
(void*) isr_dma1_channel5, /* */
(void*) isr_dma1_channel6, /* */
(void*) isr_dma1_channel7, /* */
(void*) isr_adc1_2, /* */
(void*) isr_usb_hp_can_tx, /* */
(void*) isr_usb_lp_can_rx0, /* */
(void*) isr_can_rx1, /* */
(void*) isr_can_sce, /* */
(void*) isr_exti, /* */
(void*) isr_tim1_brk_tim15, /* */
(void*) isr_tim1_up_tim16, /* */
(void*) isr_tim1_trg_com_tim17, /* */
(void*) isr_tim1_cc, /* */
(void*) isr_tim2, /* */
(void*) isr_tim3, /* */
(void*) isr_tim4, /* */
(void*) isr_i2c1_ev, /* */
(void*) isr_i2c1_er, /* */
(void*) isr_i2c2_ev, /* */
(void*) isr_i2c2_er, /* */
(void*) isr_spi1, /* */
(void*) isr_spi2, /* */
(void*) isr_usart1, /* */
(void*) isr_usart2, /* */
(void*) isr_usart3, /* */
(void*) isr_exti, /* */
(void*) isr_rtc_alarm, /* */
(void*) isr_usbwakeup, /* */
(void*) isr_tim8_brk, /* */
(void*) isr_tim8_up, /* */
(void*) isr_tim8_trg_com, /* */
(void*) isr_tim8_cc, /* */
(void*) isr_adc3, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_spi3, /* */
(void*) isr_uart4, /* */
(void*) isr_uart5, /* */
(void*) isr_tim6_dac, /* */
(void*) isr_tim7, /* */
(void*) isr_dma2_channel1, /* */
(void*) isr_dma2_channel2, /* */
(void*) isr_dma2_channel3, /* */
(void*) isr_dma2_channel4, /* */
(void*) isr_dma2_channel5, /* */
(void*) isr_adc4, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_comp1_2_3, /* */
(void*) isr_comp4_5_6, /* */
(void*) isr_comp7, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_usb_hp, /* */
(void*) isr_usb_lp, /* */
(void*) isr_usbwakeup_rmp, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_fpu, /* */
};

204
cpu/stm32f3/vectors.c
Unescape Escape View File

@ -0,0 +1,204 @@
/*
* Copyright (C) 2014-2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f3
* @{
*
* @file
* @brief Interrupt vector definitions
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdint.h>
#include "vectors_cortexm.h"
/* get the start of the ISR stack as defined in the linkerscript */
extern uint32_t _estack;
/* define a local dummy handler as it needs to be in the same compilation unit
* as the alias definition */
void dummy_handler(void) {
dummy_handler_default();
}
/* Cortex-M common interrupt vectors */
WEAK_DEFAULT void isr_svc(void);
WEAK_DEFAULT void isr_pendsv(void);
WEAK_DEFAULT void isr_systick(void);
/* STM32F3 specific interrupt vectors */
WEAK_DEFAULT void isr_wwdg(void);
WEAK_DEFAULT void isr_pvd(void);
WEAK_DEFAULT void isr_tamp_stamp(void);
WEAK_DEFAULT void isr_rtc_wkup(void);
WEAK_DEFAULT void isr_flash(void);
WEAK_DEFAULT void isr_rcc(void);
WEAK_DEFAULT void isr_exti(void);
WEAK_DEFAULT void isr_dma1_channel1(void);
WEAK_DEFAULT void isr_dma1_channel2(void);
WEAK_DEFAULT void isr_dma1_channel3(void);
WEAK_DEFAULT void isr_dma1_channel4(void);
WEAK_DEFAULT void isr_dma1_channel5(void);
WEAK_DEFAULT void isr_dma1_channel6(void);
WEAK_DEFAULT void isr_dma1_channel7(void);
WEAK_DEFAULT void isr_adc1_2(void);
WEAK_DEFAULT void isr_usb_hp_can_tx(void);
WEAK_DEFAULT void isr_usb_lp_can_rx0(void);
WEAK_DEFAULT void isr_can_rx1(void);
WEAK_DEFAULT void isr_can_sce(void);
WEAK_DEFAULT void isr_tim1_brk_tim15(void);
WEAK_DEFAULT void isr_tim1_up_tim16(void);
WEAK_DEFAULT void isr_tim1_trg_com_tim17(void);
WEAK_DEFAULT void isr_tim1_cc(void);
WEAK_DEFAULT void isr_tim2(void);
WEAK_DEFAULT void isr_tim3(void);
WEAK_DEFAULT void isr_tim4(void);
WEAK_DEFAULT void isr_i2c1_ev(void);
WEAK_DEFAULT void isr_i2c1_er(void);
WEAK_DEFAULT void isr_i2c2_ev(void);
WEAK_DEFAULT void isr_i2c2_er(void);
WEAK_DEFAULT void isr_spi1(void);
WEAK_DEFAULT void isr_spi2(void);
WEAK_DEFAULT void isr_usart1(void);
WEAK_DEFAULT void isr_usart2(void);
WEAK_DEFAULT void isr_usart3(void);
WEAK_DEFAULT void isr_rtc_alarm(void);
WEAK_DEFAULT void isr_usbwakeup(void);
WEAK_DEFAULT void isr_tim8_brk(void);
WEAK_DEFAULT void isr_tim8_up(void);
WEAK_DEFAULT void isr_tim8_trg_com(void);
WEAK_DEFAULT void isr_tim8_cc(void);
WEAK_DEFAULT void isr_adc3(void);
WEAK_DEFAULT void isr_spi3(void);
WEAK_DEFAULT void isr_uart4(void);
WEAK_DEFAULT void isr_uart5(void);
WEAK_DEFAULT void isr_tim6_dac(void);
WEAK_DEFAULT void isr_tim7(void);
WEAK_DEFAULT void isr_dma2_channel1(void);
WEAK_DEFAULT void isr_dma2_channel2(void);
WEAK_DEFAULT void isr_dma2_channel3(void);
WEAK_DEFAULT void isr_dma2_channel4(void);
WEAK_DEFAULT void isr_dma2_channel5(void);
WEAK_DEFAULT void isr_adc4(void);
WEAK_DEFAULT void isr_comp1_2_3(void);
WEAK_DEFAULT void isr_comp4_5_6(void);
WEAK_DEFAULT void isr_comp7(void);
WEAK_DEFAULT void isr_usb_hp(void);
WEAK_DEFAULT void isr_usb_lp(void);
WEAK_DEFAULT void isr_usbwakeup_rmp(void);
WEAK_DEFAULT void isr_fpu(void);
/* interrupt vector table */
ISR_VECTORS const void *interrupt_vector[] = {
/* Exception stack pointer */
(void*) (&_estack), /* pointer to the top of the stack */
/* Cortex-M4 handlers */
(void*) reset_handler_default, /* entry point of the program */
(void*) nmi_default, /* non maskable interrupt handler */
(void*) hard_fault_default, /* hard fault exception */
(void*) mem_manage_default, /* memory manage exception */
(void*) bus_fault_default, /* bus fault exception */
(void*) usage_fault_default, /* usage fault exception */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) isr_svc, /* system call interrupt, in RIOT used for
* switching into thread context on boot */
(void*) debug_mon_default, /* debug monitor exception */
(void*) (0UL), /* Reserved */
(void*) isr_pendsv, /* pendSV interrupt, in RIOT the actual
* context switching is happening here */
(void*) isr_systick, /* SysTick interrupt, not used in RIOT */
/* STMF3 specific peripheral handlers */
(void*) isr_wwdg, /* */
(void*) isr_pvd, /* */
(void*) isr_tamp_stamp, /* */
(void*) isr_rtc_wkup, /* */
(void*) isr_flash, /* */
(void*) isr_rcc, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_exti, /* */
(void*) isr_dma1_channel1, /* */
(void*) isr_dma1_channel2, /* */
(void*) isr_dma1_channel3, /* */
(void*) isr_dma1_channel4, /* */
(void*) isr_dma1_channel5, /* */
(void*) isr_dma1_channel6, /* */
(void*) isr_dma1_channel7, /* */
(void*) isr_adc1_2, /* */
(void*) isr_usb_hp_can_tx, /* */
(void*) isr_usb_lp_can_rx0, /* */
(void*) isr_can_rx1, /* */
(void*) isr_can_sce, /* */
(void*) isr_exti, /* */
(void*) isr_tim1_brk_tim15, /* */
(void*) isr_tim1_up_tim16, /* */
(void*) isr_tim1_trg_com_tim17, /* */
(void*) isr_tim1_cc, /* */
(void*) isr_tim2, /* */
(void*) isr_tim3, /* */
(void*) isr_tim4, /* */
(void*) isr_i2c1_ev, /* */
(void*) isr_i2c1_er, /* */
(void*) isr_i2c2_ev, /* */
(void*) isr_i2c2_er, /* */
(void*) isr_spi1, /* */
(void*) isr_spi2, /* */
(void*) isr_usart1, /* */
(void*) isr_usart2, /* */
(void*) isr_usart3, /* */
(void*) isr_exti, /* */
(void*) isr_rtc_alarm, /* */
(void*) isr_usbwakeup, /* */
(void*) isr_tim8_brk, /* */
(void*) isr_tim8_up, /* */
(void*) isr_tim8_trg_com, /* */
(void*) isr_tim8_cc, /* */
(void*) isr_adc3, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_spi3, /* */
(void*) isr_uart4, /* */
(void*) isr_uart5, /* */
(void*) isr_tim6_dac, /* */
(void*) isr_tim7, /* */
(void*) isr_dma2_channel1, /* */
(void*) isr_dma2_channel2, /* */
(void*) isr_dma2_channel3, /* */
(void*) isr_dma2_channel4, /* */
(void*) isr_dma2_channel5, /* */
(void*) isr_adc4, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_comp1_2_3, /* */
(void*) isr_comp4_5_6, /* */
(void*) isr_comp7, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_usb_hp, /* */
(void*) isr_usb_lp, /* */
(void*) isr_usbwakeup_rmp, /* */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) (0UL), /* reserved */
(void*) isr_fpu, /* */
};
Write Preview
Loading…
Cancel
Save