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RIOT/cpu/stm32f1/startup.c
Thomas Eichinger aaa2c2e8ba boards: initial import of iot-lab_M3
2014-08-21 17:53:37 +02:00

273 lines
10 KiB
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/*
* 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_stm32f1
* @{
*
* @file startup.c
* @brief Startup code and interrupt vector definition
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Thomas Eichinger <thomas.eichinger@fu-berlin.de>
*
* @}
*/
#include <stdint.h>
#include "crash.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)
{
core_panic(DUMMY_HANDLER, "DUMMY HANDLER");
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)
{
core_panic(HARD_FAULT, "HARD FAULT");
while (1) {asm ("nop");}
}
void isr_bus_fault(void)
{
core_panic(BUS_FAULT, "BUS FAULT");
while (1) {asm ("nop");}
}
void isr_usage_fault(void)
{
core_panic(USAGE_FAULT, "USAGE FAULT");
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")));
/* stm32f1 specific interrupt vector */
void isr_wwdg(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_pvd(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tamper(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rtc(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_exti0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_ch1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_ch2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_ch3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_ch4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_ch5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_ch6(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_ch7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_adc1_2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usb_hp_can1_tx(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usb_lp_can1_rx0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can1_rx1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can1_sce(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti9_5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_brk(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_up(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_trg_com(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_exti15_10(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rtc_alarm(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usb_wakeup(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_fsmc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_sdio(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim5(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(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_ch1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_ch2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_ch3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_ch4_5(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-M handlers */
(void*) reset_handler, /* entry point of the program */
(void*) isr_nmi, /* non maskable interrupt handler */
(void*) isr_hard_fault, /* if you end up here its not good */
(void*) isr_mem_manage, /* memory controller interrupt */
(void*) isr_bus_fault, /* also not good to end up here */
(void*) isr_usage_fault, /* autsch */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) isr_svc, /* system call interrupt */
(void*) isr_debug_mon, /* debug interrupt */
(void*) (0UL), /* Reserved */
(void*) isr_pendsv, /* pendSV interrupt, used for task switching in RIOT */
(void*) isr_systick, /* SysTick interrupt, not used in RIOT */
/* STM specific peripheral handlers */
(void*) isr_wwdg,
(void*) isr_pvd,
(void*) isr_tamper,
(void*) isr_rtc,
(void*) isr_flash,
(void*) isr_rcc,
(void*) isr_exti0,
(void*) isr_exti1,
(void*) isr_exti2,
(void*) isr_exti3,
(void*) isr_exti4,
(void*) isr_dma1_ch1,
(void*) isr_dma1_ch2,
(void*) isr_dma1_ch3,
(void*) isr_dma1_ch4,
(void*) isr_dma1_ch5,
(void*) isr_dma1_ch6,
(void*) isr_dma1_ch7,
(void*) isr_adc1_2,
(void*) isr_usb_hp_can1_tx,
(void*) isr_usb_lp_can1_rx0,
(void*) isr_can1_rx1,
(void*) isr_can1_sce,
(void*) isr_exti9_5,
(void*) isr_tim1_brk,
(void*) isr_tim1_up,
(void*) isr_tim1_trg_com,
(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_exti15_10,
(void*) isr_rtc_alarm,
(void*) isr_usb_wakeup,
(void*) isr_tim8_brk,
(void*) isr_tim8_up,
(void*) isr_tim8_trg_com,
(void*) isr_tim8_cc,
(void*) isr_adc3,
(void*) isr_fsmc,
(void*) isr_sdio,
(void*) isr_tim5,
(void*) isr_spi3,
(void*) isr_uart4,
(void*) isr_uart5,
(void*) isr_tim6,
(void*) isr_tim7,
(void*) isr_dma2_ch1,
(void*) isr_dma2_ch2,
(void*) isr_dma2_ch3,
(void*) isr_dma2_ch4_5,
};
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