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312 lines
15 KiB
312 lines
15 KiB
/* |
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* Copyright (C) 2014 Freie Universität Berlin |
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* |
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* This file is subject to the terms and conditions of the GNU Lesser General |
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* Public License v2.1. See the file LICENSE in the top level directory for more |
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* details. |
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*/ |
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/** |
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* @ingroup cpu_stm32f4 |
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* @{ |
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* |
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* @file |
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* @brief Startup code and interrupt vector definition |
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* |
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de> |
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* |
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* @} |
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*/ |
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#include <stdint.h> |
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/** |
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* memory markers as defined in the linker script |
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*/ |
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extern uint32_t _sfixed; |
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extern uint32_t _efixed; |
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extern uint32_t _etext; |
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extern uint32_t _srelocate; |
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extern uint32_t _erelocate; |
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extern uint32_t _szero; |
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extern uint32_t _ezero; |
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extern uint32_t _sstack; |
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extern uint32_t _estack; |
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/** |
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* @brief functions for initializing the board, std-lib and kernel |
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*/ |
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extern void board_init(void); |
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extern void kernel_init(void); |
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extern void __libc_init_array(void); |
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/** |
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* Required by g++ cross compiler |
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*/ |
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void *__dso_handle; |
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/** |
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* @brief This function is the entry point after a system reset |
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* |
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* After a system reset, the following steps are necessary and carried out: |
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* 1. load data section from flash to ram |
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* 2. overwrite uninitialized data section (BSS) with zeros |
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* 3. initialize the newlib |
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* 4. initialize the board (sync clock, setup std-IO) |
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* 5. initialize and start RIOTs kernel |
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*/ |
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void reset_handler(void) |
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{ |
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uint32_t *dst; |
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uint32_t *src = &_etext; |
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/* load data section from flash to ram */ |
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for (dst = &_srelocate; dst < &_erelocate; ) { |
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*(dst++) = *(src++); |
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} |
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/* default bss section to zero */ |
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for (dst = &_szero; dst < &_ezero; ) { |
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*(dst++) = 0; |
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} |
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/* initialize the board and startup the kernel */ |
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board_init(); |
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/* initialize std-c library (this should be done after board_init) */ |
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__libc_init_array(); |
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/* startup the kernel */ |
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kernel_init(); |
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} |
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/** |
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* @brief Default handler is called in case no interrupt handler was defined |
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*/ |
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void dummy_handler(void) |
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{ |
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while (1) {asm ("nop");} |
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} |
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void isr_nmi(void) |
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{ |
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while (1) {asm ("nop");} |
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} |
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void isr_mem_manage(void) |
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{ |
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while (1) {asm ("nop");} |
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} |
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void isr_debug_mon(void) |
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{ |
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while (1) {asm ("nop");} |
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} |
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void isr_hard_fault(void) |
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{ |
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while (1) {asm ("nop");} |
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} |
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void isr_bus_fault(void) |
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{ |
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while (1) {asm ("nop");} |
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} |
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void isr_usage_fault(void) |
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{ |
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while (1) {asm ("nop");} |
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} |
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/* Cortex-M specific interrupt vectors */ |
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void isr_svc(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_pendsv(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_systick(void) __attribute__ ((weak, alias("dummy_handler"))); |
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/* STM32F4 specific interrupt vector */ |
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void isr_wwdg(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_pvd(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tamp_stamp(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_rtc_wkup(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_flash(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_rcc(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_exti0(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_exti1(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_exti2(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_exti3(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_exti4(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream0(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream1(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream2(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream3(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream4(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream5(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream6(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_adc(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can1_tx(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can1_rx0(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can1_rx1(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can1_sce(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_exti9_5(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim1_brk_tim9(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim1_up_tim10(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim1_trg_com_tim11(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim1_cc(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim2(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim3(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim4(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_i2c1_ev(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_i2c1_er(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_i2c2_ev(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_i2c2_er(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_spi1(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_spi2(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_usart1(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_usart2(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_usart3(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_exti15_10(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_rtc_alarm(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_otg_fs_wkup(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim8_brk_tim12(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim8_up_tim13(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim8_trg_com_tim14(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim8_cc(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma1_stream7(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_fsmc(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_sdio(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim5(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_spi3(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_uart4(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_uart5(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim6_dac(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_tim7(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream0(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream1(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream2(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream3(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream4(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_eth(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_eth_wkup(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can2_tx(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can2_rx0(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can2_rx1(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_can2_sce(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_otg_fs(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream5(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream6(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dma2_stream7(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_usart6(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_i2c3_ev(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_i2c3_er(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_otg_hs_ep1_out(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_otg_hs_ep1_in(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_otg_hs_wkup(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_otg_hs(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_dcmi(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_cryp(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_hash_rng(void) __attribute__ ((weak, alias("dummy_handler"))); |
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void isr_fpu(void) __attribute__ ((weak, alias("dummy_handler"))); |
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/* interrupt vector table */ |
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__attribute__ ((section(".vectors"))) |
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const void *interrupt_vector[] = { |
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/* Stack pointer */ |
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(void*) (&_estack), /* pointer to the top of the empty stack */ |
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/* Cortex-M4 handlers */ |
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(void*) reset_handler, /* entry point of the program */ |
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(void*) isr_nmi, /* non maskable interrupt handler */ |
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(void*) isr_hard_fault, /* if you end up here its not good */ |
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(void*) isr_mem_manage, /* memory controller interrupt */ |
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(void*) isr_bus_fault, /* also not good to end up here */ |
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(void*) isr_usage_fault, /* autsch */ |
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(void*) (0UL), /* Reserved */ |
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(void*) (0UL), /* Reserved */ |
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(void*) (0UL), /* Reserved */ |
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(void*) (0UL), /* Reserved */ |
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(void*) isr_svc, /* system call interrupt */ |
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(void*) isr_debug_mon, /* debug interrupt */ |
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(void*) (0UL), /* Reserved */ |
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(void*) isr_pendsv, /* pendSV interrupt, used for task switching in RIOT */ |
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(void*) isr_systick, /* SysTick interrupt, not used in RIOT */ |
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/* STM specific peripheral handlers */ |
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(void*) isr_wwdg, /* Window WatchDog */ |
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(void*) isr_pvd, /* PVD through EXTI Line detection */ |
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(void*) isr_tamp_stamp, /* Tamper and TimeStamps through the EXTI line */ |
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(void*) isr_rtc_wkup, /* RTC Wakeup through the EXTI line */ |
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(void*) isr_flash, /* FLASH */ |
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(void*) isr_rcc, /* RCC */ |
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(void*) isr_exti0, /* EXTI Line0 */ |
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(void*) isr_exti1, /* EXTI Line1 */ |
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(void*) isr_exti2, /* EXTI Line2 */ |
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(void*) isr_exti3, /* EXTI Line3 */ |
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(void*) isr_exti4, /* EXTI Line4 */ |
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(void*) isr_dma1_stream0, /* DMA1 Stream 0 */ |
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(void*) isr_dma1_stream1, /* DMA1 Stream 1 */ |
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(void*) isr_dma1_stream2, /* DMA1 Stream 2 */ |
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(void*) isr_dma1_stream3, /* DMA1 Stream 3 */ |
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(void*) isr_dma1_stream4, /* DMA1 Stream 4 */ |
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(void*) isr_dma1_stream5, /* DMA1 Stream 5 */ |
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(void*) isr_dma1_stream6, /* DMA1 Stream 6 */ |
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(void*) isr_adc, /* ADC1, ADC2 and ADC3s */ |
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(void*) isr_can1_tx, /* CAN1 TX */ |
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(void*) isr_can1_rx0, /* CAN1 RX0 */ |
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(void*) isr_can1_rx1, /* CAN1 RX1 */ |
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(void*) isr_can1_sce, /* CAN1 SCE */ |
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(void*) isr_exti9_5, /* External Line[9:5]s */ |
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(void*) isr_tim1_brk_tim9, /* TIM1 Break and TIM9 */ |
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(void*) isr_tim1_up_tim10, /* TIM1 Update and TIM10 */ |
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(void*) isr_tim1_trg_com_tim11, /* TIM1 Trigger and Commutation and TIM11 */ |
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(void*) isr_tim1_cc, /* TIM1 Capture Compare */ |
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(void*) isr_tim2, /* TIM2 */ |
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(void*) isr_tim3, /* TIM3 */ |
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(void*) isr_tim4, /* TIM4 */ |
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(void*) isr_i2c1_ev, /* I2C1 Event */ |
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(void*) isr_i2c1_er, /* I2C1 Error */ |
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(void*) isr_i2c2_ev, /* I2C2 Event */ |
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(void*) isr_i2c2_er, /* I2C2 Error */ |
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(void*) isr_spi1, /* SPI1 */ |
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(void*) isr_spi2, /* SPI2 */ |
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(void*) isr_usart1, /* USART1 */ |
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(void*) isr_usart2, /* USART2 */ |
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(void*) isr_usart3, /* USART3 */ |
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(void*) isr_exti15_10, /* External Line[15:10]s */ |
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(void*) isr_rtc_alarm, /* RTC Alarm (A and B) through EXTI Line */ |
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(void*) isr_otg_fs_wkup, /* USB OTG FS Wakeup through EXTI line */ |
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(void*) isr_tim8_brk_tim12, /* TIM8 Break and TIM12 */ |
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(void*) isr_tim8_up_tim13, /* TIM8 Update and TIM13 */ |
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(void*) isr_tim8_trg_com_tim14, /* TIM8 Trigger and Commutation and TIM14 */ |
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(void*) isr_tim8_cc, /* TIM8 Capture Compare */ |
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(void*) isr_dma1_stream7, /* DMA1 Stream7 */ |
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(void*) isr_fsmc, /* FSMC */ |
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(void*) isr_sdio, /* SDIO */ |
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(void*) isr_tim5, /* TIM5 */ |
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(void*) isr_spi3, /* SPI3 */ |
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(void*) isr_uart4, /* UART4 */ |
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(void*) isr_uart5, /* UART5 */ |
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(void*) isr_tim6_dac, /* TIM6 and DAC1&2 underrun errors */ |
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(void*) isr_tim7, /* TIM7 */ |
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(void*) isr_dma2_stream0, /* DMA2 Stream 0 */ |
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(void*) isr_dma2_stream1, /* DMA2 Stream 1 */ |
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(void*) isr_dma2_stream2, /* DMA2 Stream 2 */ |
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(void*) isr_dma2_stream3, /* DMA2 Stream 3 */ |
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(void*) isr_dma2_stream4, /* DMA2 Stream 4 */ |
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(void*) isr_eth, /* Ethernet */ |
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(void*) isr_eth_wkup, /* Ethernet Wakeup through EXTI line */ |
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(void*) isr_can2_tx, /* CAN2 TX */ |
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(void*) isr_can2_rx0, /* CAN2 RX0 */ |
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(void*) isr_can2_rx1, /* CAN2 RX1 */ |
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(void*) isr_can2_sce, /* CAN2 SCE */ |
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(void*) isr_otg_fs, /* USB OTG FS */ |
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(void*) isr_dma2_stream5, /* DMA2 Stream 5 */ |
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(void*) isr_dma2_stream6, /* DMA2 Stream 6 */ |
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(void*) isr_dma2_stream7, /* DMA2 Stream 7 */ |
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(void*) isr_usart6, /* USART6 */ |
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(void*) isr_i2c3_ev, /* I2C3 event */ |
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(void*) isr_i2c3_er, /* I2C3 error */ |
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(void*) isr_otg_hs_ep1_out, /* USB OTG HS End Point 1 Out */ |
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(void*) isr_otg_hs_ep1_in, /* USB OTG HS End Point 1 In */ |
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(void*) isr_otg_hs_wkup, /* USB OTG HS Wakeup through EXTI */ |
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(void*) isr_otg_hs, /* USB OTG HS */ |
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(void*) isr_dcmi, /* DCMI */ |
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(void*) isr_cryp, /* CRYP crypto */ |
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(void*) isr_hash_rng, /* Hash and Rng */ |
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(void*) isr_fpu, /* FPU */ |
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};
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