You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
187 lines
8.5 KiB
C
187 lines
8.5 KiB
C
4 years ago
|
/**
|
||
|
|
* \file
|
||
|
|
*
|
||
|
|
* \brief GCC startup file for ATSAMD21E16A
|
||
|
|
*
|
||
|
|
* Copyright (c) 2020 Microchip Technology Inc.
|
||
|
|
*
|
||
|
|
* \license_start
|
||
|
|
*
|
||
|
|
* \page License
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*
|
||
|
|
* \license_stop
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "samd21e16a.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);
|
||
|
|
|
||
|
|
/* Reset handler */
|
||
|
|
void Reset_Handler(void);
|
||
|
|
|
||
|
|
/* Default empty handler */
|
||
|
|
void Dummy_Handler(void);
|
||
|
|
|
||
|
|
/* Cortex-M0PLUS core handlers */
|
||
|
|
void NonMaskableInt_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
|
||
|
|
void HardFault_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
|
||
|
|
void SVCall_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 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 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 */
|
||
|
|
.pvStack = (void*) (&_estack),
|
||
|
|
|
||
|
|
.pfnReset_Handler = (void*) Reset_Handler,
|
||
|
|
.pfnNonMaskableInt_Handler = (void*) NonMaskableInt_Handler,
|
||
|
|
.pfnHardFault_Handler = (void*) HardFault_Handler,
|
||
|
|
.pvReservedC12 = (void*) (0UL), /* Reserved */
|
||
|
|
.pvReservedC11 = (void*) (0UL), /* Reserved */
|
||
|
|
.pvReservedC10 = (void*) (0UL), /* Reserved */
|
||
|
|
.pvReservedC9 = (void*) (0UL), /* Reserved */
|
||
|
|
.pvReservedC8 = (void*) (0UL), /* Reserved */
|
||
|
|
.pvReservedC7 = (void*) (0UL), /* Reserved */
|
||
|
|
.pvReservedC6 = (void*) (0UL), /* Reserved */
|
||
|
|
.pfnSVCall_Handler = (void*) SVCall_Handler,
|
||
|
|
.pvReservedC4 = (void*) (0UL), /* Reserved */
|
||
|
|
.pvReservedC3 = (void*) (0UL), /* Reserved */
|
||
|
|
.pfnPendSV_Handler = (void*) PendSV_Handler,
|
||
|
|
.pfnSysTick_Handler = (void*) SysTick_Handler,
|
||
|
|
|
||
|
|
/* Configurable interrupts */
|
||
|
|
.pfnPM_Handler = (void*) PM_Handler, /* 0 Power Manager */
|
||
|
|
.pfnSYSCTRL_Handler = (void*) SYSCTRL_Handler, /* 1 System Control */
|
||
|
|
.pfnWDT_Handler = (void*) WDT_Handler, /* 2 Watchdog Timer */
|
||
|
|
.pfnRTC_Handler = (void*) RTC_Handler, /* 3 Real-Time Counter */
|
||
|
|
.pfnEIC_Handler = (void*) EIC_Handler, /* 4 External Interrupt Controller */
|
||
|
|
.pfnNVMCTRL_Handler = (void*) NVMCTRL_Handler, /* 5 Non-Volatile Memory Controller */
|
||
|
|
.pfnDMAC_Handler = (void*) DMAC_Handler, /* 6 Direct Memory Access Controller */
|
||
|
|
.pfnUSB_Handler = (void*) USB_Handler, /* 7 Universal Serial Bus */
|
||
|
|
.pfnEVSYS_Handler = (void*) EVSYS_Handler, /* 8 Event System Interface */
|
||
|
|
.pfnSERCOM0_Handler = (void*) SERCOM0_Handler, /* 9 Serial Communication Interface */
|
||
|
|
.pfnSERCOM1_Handler = (void*) SERCOM1_Handler, /* 10 Serial Communication Interface */
|
||
|
|
.pfnSERCOM2_Handler = (void*) SERCOM2_Handler, /* 11 Serial Communication Interface */
|
||
|
|
.pfnSERCOM3_Handler = (void*) SERCOM3_Handler, /* 12 Serial Communication Interface */
|
||
|
|
.pvReserved13 = (void*) (0UL), /* 13 Reserved */
|
||
|
|
.pvReserved14 = (void*) (0UL), /* 14 Reserved */
|
||
|
|
.pfnTCC0_Handler = (void*) TCC0_Handler, /* 15 Timer Counter Control */
|
||
|
|
.pfnTCC1_Handler = (void*) TCC1_Handler, /* 16 Timer Counter Control */
|
||
|
|
.pfnTCC2_Handler = (void*) TCC2_Handler, /* 17 Timer Counter Control */
|
||
|
|
.pfnTC3_Handler = (void*) TC3_Handler, /* 18 Basic Timer Counter */
|
||
|
|
.pfnTC4_Handler = (void*) TC4_Handler, /* 19 Basic Timer Counter */
|
||
|
|
.pfnTC5_Handler = (void*) TC5_Handler, /* 20 Basic Timer Counter */
|
||
|
|
.pvReserved21 = (void*) (0UL), /* 21 Reserved */
|
||
|
|
.pvReserved22 = (void*) (0UL), /* 22 Reserved */
|
||
|
|
.pfnADC_Handler = (void*) ADC_Handler, /* 23 Analog Digital Converter */
|
||
|
|
.pfnAC_Handler = (void*) AC_Handler, /* 24 Analog Comparators */
|
||
|
|
.pfnDAC_Handler = (void*) DAC_Handler, /* 25 Digital Analog Converter */
|
||
|
|
.pfnPTC_Handler = (void*) PTC_Handler, /* 26 Peripheral Touch Controller */
|
||
|
|
.pfnI2S_Handler = (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) {
|
||
|
|
}
|
||
|
|
}
|