/** * \file * * Copyright (c) 2015 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 "samr21.h" typedef void (*intfunc) (void); typedef union { intfunc __fun; void * __ptr; } intvec_elem; void __iar_program_start(void); int __low_level_init(void); /* Default empty handler */ void Dummy_Handler(void); /* Cortex-M0+ core handlers */ #pragma weak NMI_Handler = Dummy_Handler #pragma weak HardFault_Handler = Dummy_Handler #pragma weak SVC_Handler = Dummy_Handler #pragma weak PendSV_Handler = Dummy_Handler #pragma weak SysTick_Handler = Dummy_Handler /* Peripherals handlers */ #pragma weak PM_Handler = Dummy_Handler #pragma weak SYSCTRL_Handler = Dummy_Handler #pragma weak WDT_Handler = Dummy_Handler #pragma weak RTC_Handler = Dummy_Handler #pragma weak EIC_Handler = Dummy_Handler #pragma weak NVMCTRL_Handler = Dummy_Handler #pragma weak DMAC_Handler = Dummy_Handler #ifdef ID_USB #pragma weak USB_Handler = Dummy_Handler #endif #pragma weak EVSYS_Handler = Dummy_Handler #pragma weak SERCOM0_Handler = Dummy_Handler #pragma weak SERCOM1_Handler = Dummy_Handler #pragma weak SERCOM2_Handler = Dummy_Handler #pragma weak SERCOM3_Handler = Dummy_Handler #ifdef ID_SERCOM4 #pragma weak SERCOM4_Handler = Dummy_Handler #endif #ifdef ID_SERCOM5 #pragma weak SERCOM5_Handler = Dummy_Handler #endif #pragma weak TCC0_Handler = Dummy_Handler #pragma weak TCC1_Handler = Dummy_Handler #pragma weak TCC2_Handler = Dummy_Handler #pragma weak TC3_Handler = Dummy_Handler #pragma weak TC4_Handler = Dummy_Handler #pragma weak TC5_Handler = Dummy_Handler #ifdef ID_TC6 #pragma weak TC6_Handler = Dummy_Handler #endif #ifdef ID_TC7 #pragma weak TC7_Handler = Dummy_Handler #endif #ifdef ID_ADC #pragma weak ADC_Handler = Dummy_Handler #endif #ifdef ID_AC #pragma weak AC_Handler = Dummy_Handler #endif #ifdef ID_DAC #pragma weak DAC_Handler = Dummy_Handler #endif #ifdef ID_PTC #pragma weak PTC_Handler = Dummy_Handler #endif #pragma weak I2S_Handler = Dummy_Handler /* Exception Table */ #pragma language = extended #pragma segment = "CSTACK" /* The name "__vector_table" has special meaning for C-SPY: */ /* it is where the SP start value is found, and the NVIC vector */ /* table register (VTOR) is initialized to this address if != 0 */ #pragma section = ".intvec" #pragma location = ".intvec" const DeviceVectors __vector_table[] = { __sfe("CSTACK"), (void*) __iar_program_start, (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 */ #ifdef ID_USB (void*) USB_Handler, /* 7 Universal Serial Bus */ #else (void*) (0UL), /* Reserved*/ #endif (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 */ #ifdef ID_SERCOM4 (void*) SERCOM4_Handler, /* 13 Serial Communication Interface 4 */ #else (void*) (0UL), /* Reserved*/ #endif #ifdef ID_SERCOM5 (void*) SERCOM5_Handler, /* 14 Serial Communication Interface 5 */ #else (void*) (0UL), /* Reserved*/ #endif (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 */ #ifdef ID_TC6 (void*) TC6_Handler, /* 21 Basic Timer Counter 3 */ #else (void*) (0UL), /* Reserved*/ #endif #ifdef ID_TC7 (void*) TC7_Handler, /* 22 Basic Timer Counter 4 */ #else (void*) (0UL), /* Reserved*/ #endif #ifdef ID_ADC (void*) ADC_Handler, /* 23 Analog Digital Converter */ #else (void*) (0UL), /* Reserved*/ #endif #ifdef ID_AC (void*) AC_Handler, /* 24 Analog Comparators */ #else (void*) (0UL), /* Reserved*/ #endif #ifdef ID_DAC (void*) DAC_Handler, /* 25 Digital Analog Converter */ #else (void*) (0UL), /* Reserved*/ #endif #ifdef ID_PTC (void*) PTC_Handler, /* 26 Peripheral Touch Controller */ #else (void*) (0UL), /* Reserved*/ #endif (void*) I2S_Handler, /* 27 Inter-IC Sound Interface */ (void*) (0UL), /* Reserved */ }; /**------------------------------------------------------------------------------ * This is the code that gets called on processor reset. To initialize the * device. *------------------------------------------------------------------------------*/ int __low_level_init(void) { uint32_t *pSrc = __section_begin(".intvec"); SCB->VTOR = ((uint32_t) pSrc & SCB_VTOR_TBLOFF_Msk); return 1; /* if return 0, the data sections will not be initialized */ } /**------------------------------------------------------------------------------ * This is the code that gets called on processor reset. To initialize the * device. *------------------------------------------------------------------------------*/ void Reset_Handler(void) { /* Change default QOS values to have the best performance and correct USB behaviour */ SBMATRIX->SFR[SBMATRIX_SLAVE_HMCRAMC0].reg = 2; #if defined(ID_USB) USB->DEVICE.QOSCTRL.bit.CQOS = 2; USB->DEVICE.QOSCTRL.bit.DQOS = 2; #endif DMAC->QOSCTRL.bit.DQOS = 2; DMAC->QOSCTRL.bit.FQOS = 2; DMAC->QOSCTRL.bit.WRBQOS = 2; /* Overwriting the default value of the NVMCTRL.CTRLB.MANW bit (errata reference 13134) */ NVMCTRL->CTRLB.bit.MANW = 1; __iar_program_start(); } /** * \brief Default interrupt handler for unused IRQs. */ void Dummy_Handler(void) { while (1) { } }