/** * \file * * \brief gcc starttup file for SAMD21 * * Copyright (c) 2014 Atmel Corporation. All rights reserved. * * \asf_license_start * * \page License * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The name of Atmel may not be used to endorse or promote products derived * from this software without specific prior written permission. * * 4. This software may only be redistributed and used in connection with an * Atmel microcontroller product. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * \asf_license_stop * */ #include "samd21.h" /* Initialize segments */ 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; /** \cond DOXYGEN_SHOULD_SKIP_THIS */ int main(void); /** \endcond */ void __libc_init_array(void); /* Default empty handler */ void Dummy_Handler(void); /* Cortex-M0+ core handlers */ void NMI_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void HardFault_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SVC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void PendSV_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SysTick_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); /* Peripherals handlers */ void PM_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SYSCTRL_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void WDT_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void RTC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void EIC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void NVMCTRL_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void DMAC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void USB_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void EVSYS_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SERCOM0_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SERCOM1_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SERCOM2_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SERCOM3_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SERCOM4_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void SERCOM5_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TCC0_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TCC1_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TCC2_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TC3_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TC4_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TC5_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TC6_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void TC7_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void ADC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void AC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void DAC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void PTC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); void I2S_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler"))); /* Exception Table */ __attribute__ ((section(".vectors"))) const DeviceVectors exception_table = { /* Configure Initial Stack Pointer, using linker-generated symbols */ (void*) (&_estack), (void*) Reset_Handler, (void*) NMI_Handler, (void*) HardFault_Handler, (void*) (0UL), /* Reserved */ (void*) (0UL), /* Reserved */ (void*) (0UL), /* Reserved */ (void*) (0UL), /* Reserved */ (void*) (0UL), /* Reserved */ (void*) (0UL), /* Reserved */ (void*) (0UL), /* Reserved */ (void*) SVC_Handler, (void*) (0UL), /* Reserved */ (void*) (0UL), /* Reserved */ (void*) PendSV_Handler, (void*) SysTick_Handler, /* Configurable interrupts */ (void*) PM_Handler, /* 0 Power Manager */ (void*) SYSCTRL_Handler, /* 1 System Control */ (void*) WDT_Handler, /* 2 Watchdog Timer */ (void*) RTC_Handler, /* 3 Real-Time Counter */ (void*) EIC_Handler, /* 4 External Interrupt Controller */ (void*) NVMCTRL_Handler, /* 5 Non-Volatile Memory Controller */ (void*) DMAC_Handler, /* 6 Direct Memory Access Controller */ (void*) USB_Handler, /* 7 Universal Serial Bus */ (void*) EVSYS_Handler, /* 8 Event System Interface */ (void*) SERCOM0_Handler, /* 9 Serial Communication Interface 0 */ (void*) SERCOM1_Handler, /* 10 Serial Communication Interface 1 */ (void*) SERCOM2_Handler, /* 11 Serial Communication Interface 2 */ (void*) SERCOM3_Handler, /* 12 Serial Communication Interface 3 */ (void*) SERCOM4_Handler, /* 13 Serial Communication Interface 4 */ (void*) SERCOM5_Handler, /* 14 Serial Communication Interface 5 */ (void*) TCC0_Handler, /* 15 Timer Counter Control 0 */ (void*) TCC1_Handler, /* 16 Timer Counter Control 1 */ (void*) TCC2_Handler, /* 17 Timer Counter Control 2 */ (void*) TC3_Handler, /* 18 Basic Timer Counter 0 */ (void*) TC4_Handler, /* 19 Basic Timer Counter 1 */ (void*) TC5_Handler, /* 20 Basic Timer Counter 2 */ (void*) TC6_Handler, /* 21 Basic Timer Counter 3 */ (void*) TC7_Handler, /* 22 Basic Timer Counter 4 */ (void*) ADC_Handler, /* 23 Analog Digital Converter */ (void*) AC_Handler, /* 24 Analog Comparators */ (void*) DAC_Handler, /* 25 Digital Analog Converter */ (void*) PTC_Handler, /* 26 Peripheral Touch Controller */ (void*) I2S_Handler /* 27 Inter-IC Sound Interface */ }; /** * \brief This is the code that gets called on processor reset. * To initialize the device, and call the main() routine. */ void Reset_Handler(void) { uint32_t *pSrc, *pDest; /* Initialize the relocate segment */ pSrc = &_etext; pDest = &_srelocate; if (pSrc != pDest) { for (; pDest < &_erelocate;) { *pDest++ = *pSrc++; } } /* Clear the zero segment */ for (pDest = &_szero; pDest < &_ezero;) { *pDest++ = 0; } /* Set the vector table base address */ pSrc = (uint32_t *) & _sfixed; SCB->VTOR = ((uint32_t) pSrc & SCB_VTOR_TBLOFF_Msk); /* Initialize the C library */ __libc_init_array(); /* Branch to main function */ main(); /* Infinite loop */ while (1); } /** * \brief Default interrupt handler for unused IRQs. */ void Dummy_Handler(void) { while (1) { } }