/** | |
* \file | |
* | |
* \brief Startup file for SAM3SD8. | |
* | |
* Copyright (c) 2011 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 "exceptions.h" | |
#include "sam3s8.h" | |
#include "system_sam3sd8.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); | |
/* Exception Table */ | |
__attribute__ ((section(".vectors"))) | |
IntFunc exception_table[] = { | |
/* Configure Initial Stack Pointer, using linker-generated symbols */ | |
(IntFunc) (&_estack), | |
Reset_Handler, | |
NMI_Handler, | |
HardFault_Handler, | |
MemManage_Handler, | |
BusFault_Handler, | |
UsageFault_Handler, | |
0, 0, 0, 0, /* Reserved */ | |
SVC_Handler, | |
DebugMon_Handler, | |
0, /* Reserved */ | |
PendSV_Handler, | |
SysTick_Handler, | |
/* Configurable interrupts */ | |
SUPC_Handler, /* 0 Supply Controller */ | |
RSTC_Handler, /* 1 Reset Controller */ | |
RTC_Handler, /* 2 Real Time Clock */ | |
RTT_Handler, /* 3 Real Time Timer */ | |
WDT_Handler, /* 4 Watchdog Timer */ | |
PMC_Handler, /* 5 PMC */ | |
EFC_Handler, /* 6 EFC */ | |
Dummy_Handler, /* 7 Reserved */ | |
UART0_Handler, /* 8 UART0 */ | |
UART1_Handler, /* 9 UART1 */ | |
SMC_Handler, /* 10 SMC */ | |
PIOA_Handler, /* 11 Parallel IO Controller A */ | |
PIOB_Handler, /* 12 Parallel IO Controller B */ | |
PIOC_Handler, /* 13 Parallel IO Controller C */ | |
USART0_Handler, /* 14 USART 0 */ | |
USART1_Handler, /* 15 USART 1 */ | |
Dummy_Handler, /* 16 Reserved */ | |
Dummy_Handler, /* 17 Reserved */ | |
HSMCI_Handler, /* 18 HSMCI */ | |
TWI0_Handler, /* 19 TWI 0 */ | |
TWI1_Handler, /* 20 TWI 1 */ | |
SPI_Handler, /* 21 SPI */ | |
SSC_Handler, /* 22 SSC */ | |
TC0_Handler, /* 23 Timer Counter 0 */ | |
TC1_Handler, /* 24 Timer Counter 1 */ | |
TC2_Handler, /* 25 Timer Counter 2 */ | |
TC3_Handler, /* 26 Timer Counter 3 */ | |
TC4_Handler, /* 27 Timer Counter 4 */ | |
TC5_Handler, /* 28 Timer Counter 5 */ | |
ADC_Handler, /* 29 ADC controller */ | |
DACC_Handler, /* 30 DACC controller */ | |
PWM_Handler, /* 31 PWM */ | |
CRCCU_Handler, /* 32 CRC Calculation Unit */ | |
ACC_Handler, /* 33 Analog Comparator */ | |
UDP_Handler, /* 34 USB Device Port */ | |
Dummy_Handler /* 35 not used */ | |
}; | |
/* TEMPORARY PATCH FOR SCB */ | |
#define SCB_VTOR_TBLBASE_Pos 29 /*!< SCB VTOR: TBLBASE Position */ | |
#define SCB_VTOR_TBLBASE_Msk (1UL << SCB_VTOR_TBLBASE_Pos) /*!< SCB VTOR: TBLBASE Mask */ | |
/** | |
* \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); | |
if (((uint32_t) pSrc >= IRAM_ADDR) && ((uint32_t) pSrc < IRAM_ADDR + IRAM_SIZE)) { | |
SCB->VTOR |= 1 << SCB_VTOR_TBLBASE_Pos; | |
} | |
/* Initialize the C library */ | |
__libc_init_array(); | |
/* Branch to main function */ | |
main(); | |
/* Infinite loop */ | |
while (1); | |
} |