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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_Atmel/TARGET_SAM21/TARGET_SAMD21J18A/TOOLCHAIN_IAR/startup_samd21.c@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Child:
592:a274ee790e56
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 579:53297373a894 1 /**
mbed_official 579:53297373a894 2 * \file
mbed_official 579:53297373a894 3 *
mbed_official 579:53297373a894 4 * Copyright (c) 2013-2014 Atmel Corporation. All rights reserved.
mbed_official 579:53297373a894 5 *
mbed_official 579:53297373a894 6 * \asf_license_start
mbed_official 579:53297373a894 7 *
mbed_official 579:53297373a894 8 * \page License
mbed_official 579:53297373a894 9 *
mbed_official 579:53297373a894 10 * Redistribution and use in source and binary forms, with or without
mbed_official 579:53297373a894 11 * modification, are permitted provided that the following conditions are met:
mbed_official 579:53297373a894 12 *
mbed_official 579:53297373a894 13 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 579:53297373a894 14 * this list of conditions and the following disclaimer.
mbed_official 579:53297373a894 15 *
mbed_official 579:53297373a894 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 579:53297373a894 17 * this list of conditions and the following disclaimer in the documentation
mbed_official 579:53297373a894 18 * and/or other materials provided with the distribution.
mbed_official 579:53297373a894 19 *
mbed_official 579:53297373a894 20 * 3. The name of Atmel may not be used to endorse or promote products derived
mbed_official 579:53297373a894 21 * from this software without specific prior written permission.
mbed_official 579:53297373a894 22 *
mbed_official 579:53297373a894 23 * 4. This software may only be redistributed and used in connection with an
mbed_official 579:53297373a894 24 * Atmel microcontroller product.
mbed_official 579:53297373a894 25 *
mbed_official 579:53297373a894 26 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
mbed_official 579:53297373a894 27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mbed_official 579:53297373a894 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
mbed_official 579:53297373a894 29 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
mbed_official 579:53297373a894 30 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 579:53297373a894 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
mbed_official 579:53297373a894 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
mbed_official 579:53297373a894 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
mbed_official 579:53297373a894 34 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
mbed_official 579:53297373a894 35 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbed_official 579:53297373a894 36 * POSSIBILITY OF SUCH DAMAGE.
mbed_official 579:53297373a894 37 *
mbed_official 579:53297373a894 38 * \asf_license_stop
mbed_official 579:53297373a894 39 *
mbed_official 579:53297373a894 40 */
mbed_official 579:53297373a894 41
mbed_official 579:53297373a894 42 #include "samd21.h"
mbed_official 579:53297373a894 43
mbed_official 579:53297373a894 44 void __iar_program_start(void);
mbed_official 579:53297373a894 45 int __low_level_init(void);
mbed_official 579:53297373a894 46
mbed_official 579:53297373a894 47 void Dummy_Handler(void);
mbed_official 579:53297373a894 48 void Reset_Handler(void);
mbed_official 579:53297373a894 49
mbed_official 579:53297373a894 50 /**
mbed_official 579:53297373a894 51 * \brief Default interrupt handler for unused IRQs.
mbed_official 579:53297373a894 52 */
mbed_official 579:53297373a894 53 void Dummy_Handler(void)
mbed_official 579:53297373a894 54 {
mbed_official 579:53297373a894 55 while (1) {
mbed_official 579:53297373a894 56 }
mbed_official 579:53297373a894 57 }
mbed_official 579:53297373a894 58
mbed_official 579:53297373a894 59 /* Cortex-M0+ core handlers */
mbed_official 579:53297373a894 60 void NMI_Handler ( void );
mbed_official 579:53297373a894 61 void HardFault_Handler ( void );
mbed_official 579:53297373a894 62 void SVC_Handler ( void );
mbed_official 579:53297373a894 63 void PendSV_Handler ( void );
mbed_official 579:53297373a894 64 void SysTick_Handler ( void );
mbed_official 579:53297373a894 65
mbed_official 579:53297373a894 66 /* Peripherals handlers */
mbed_official 579:53297373a894 67 void PM_Handler ( void );
mbed_official 579:53297373a894 68 void SYSCTRL_Handler ( void );
mbed_official 579:53297373a894 69 void WDT_Handler ( void );
mbed_official 579:53297373a894 70 void RTC_Handler ( void );
mbed_official 579:53297373a894 71 void EIC_Handler ( void );
mbed_official 579:53297373a894 72 void NVMCTRL_Handler ( void );
mbed_official 579:53297373a894 73 void DMAC_Handler ( void );
mbed_official 579:53297373a894 74 void USB_Handler ( void );
mbed_official 579:53297373a894 75 void EVSYS_Handler ( void );
mbed_official 579:53297373a894 76 void SERCOM0_Handler ( void );
mbed_official 579:53297373a894 77 void SERCOM1_Handler ( void );
mbed_official 579:53297373a894 78 void SERCOM2_Handler ( void );
mbed_official 579:53297373a894 79 void SERCOM3_Handler ( void );
mbed_official 579:53297373a894 80 void SERCOM4_Handler ( void );
mbed_official 579:53297373a894 81 void SERCOM5_Handler ( void );
mbed_official 579:53297373a894 82 void TCC0_Handler ( void );
mbed_official 579:53297373a894 83 void TCC1_Handler ( void );
mbed_official 579:53297373a894 84 void TCC2_Handler ( void );
mbed_official 579:53297373a894 85 void TC3_Handler ( void );
mbed_official 579:53297373a894 86 void TC4_Handler ( void );
mbed_official 579:53297373a894 87 void TC5_Handler ( void );
mbed_official 579:53297373a894 88 void TC6_Handler ( void );
mbed_official 579:53297373a894 89 void TC7_Handler ( void );
mbed_official 579:53297373a894 90 void ADC_Handler ( void );
mbed_official 579:53297373a894 91 void AC_Handler ( void );
mbed_official 579:53297373a894 92 void DAC_Handler ( void );
mbed_official 579:53297373a894 93 void PTC_Handler ( void );
mbed_official 579:53297373a894 94 void I2S_Handler ( void );
mbed_official 579:53297373a894 95
mbed_official 579:53297373a894 96 /* Cortex-M0+ core handlers */
mbed_official 579:53297373a894 97 #pragma weak NMI_Handler = Dummy_Handler
mbed_official 579:53297373a894 98 #pragma weak HardFault_Handler = Dummy_Handler
mbed_official 579:53297373a894 99 #pragma weak SVC_Handler = Dummy_Handler
mbed_official 579:53297373a894 100 #pragma weak PendSV_Handler = Dummy_Handler
mbed_official 579:53297373a894 101 #pragma weak SysTick_Handler = Dummy_Handler
mbed_official 579:53297373a894 102
mbed_official 579:53297373a894 103 /* Peripherals handlers */
mbed_official 579:53297373a894 104 #pragma weak PM_Handler = Dummy_Handler
mbed_official 579:53297373a894 105 #pragma weak SYSCTRL_Handler = Dummy_Handler
mbed_official 579:53297373a894 106 #pragma weak WDT_Handler = Dummy_Handler
mbed_official 579:53297373a894 107 #pragma weak RTC_Handler = Dummy_Handler
mbed_official 579:53297373a894 108 #pragma weak EIC_Handler = Dummy_Handler
mbed_official 579:53297373a894 109 #pragma weak NVMCTRL_Handler = Dummy_Handler
mbed_official 579:53297373a894 110 #pragma weak DMAC_Handler = Dummy_Handler
mbed_official 579:53297373a894 111 #pragma weak USB_Handler = Dummy_Handler
mbed_official 579:53297373a894 112 #pragma weak EVSYS_Handler = Dummy_Handler
mbed_official 579:53297373a894 113 #pragma weak SERCOM0_Handler = Dummy_Handler
mbed_official 579:53297373a894 114 #pragma weak SERCOM1_Handler = Dummy_Handler
mbed_official 579:53297373a894 115 #pragma weak SERCOM2_Handler = Dummy_Handler
mbed_official 579:53297373a894 116 #pragma weak SERCOM3_Handler = Dummy_Handler
mbed_official 579:53297373a894 117 #pragma weak SERCOM4_Handler = Dummy_Handler
mbed_official 579:53297373a894 118 #pragma weak SERCOM5_Handler = Dummy_Handler
mbed_official 579:53297373a894 119 #pragma weak TCC0_Handler = Dummy_Handler
mbed_official 579:53297373a894 120 #pragma weak TCC1_Handler = Dummy_Handler
mbed_official 579:53297373a894 121 #pragma weak TCC2_Handler = Dummy_Handler
mbed_official 579:53297373a894 122 #pragma weak TC3_Handler = Dummy_Handler
mbed_official 579:53297373a894 123 #pragma weak TC4_Handler = Dummy_Handler
mbed_official 579:53297373a894 124 #pragma weak TC5_Handler = Dummy_Handler
mbed_official 579:53297373a894 125 #pragma weak TC6_Handler = Dummy_Handler
mbed_official 579:53297373a894 126 #pragma weak TC7_Handler = Dummy_Handler
mbed_official 579:53297373a894 127 #pragma weak ADC_Handler = Dummy_Handler
mbed_official 579:53297373a894 128 #pragma weak AC_Handler = Dummy_Handler
mbed_official 579:53297373a894 129 #pragma weak DAC_Handler = Dummy_Handler
mbed_official 579:53297373a894 130 #pragma weak PTC_Handler = Dummy_Handler
mbed_official 579:53297373a894 131 #pragma weak I2S_Handler = Dummy_Handler
mbed_official 579:53297373a894 132
mbed_official 579:53297373a894 133 /* Exception Table */
mbed_official 579:53297373a894 134 #pragma language=extended
mbed_official 579:53297373a894 135 #pragma segment="CSTACK"
mbed_official 579:53297373a894 136
mbed_official 579:53297373a894 137 /* The name "__vector_table" has special meaning for C-SPY: */
mbed_official 579:53297373a894 138 /* it is where the SP start value is found, and the NVIC vector */
mbed_official 579:53297373a894 139 /* table register (VTOR) is initialized to this address if != 0 */
mbed_official 579:53297373a894 140
mbed_official 579:53297373a894 141 #pragma section = ".intvec"
mbed_official 579:53297373a894 142 #pragma location = ".intvec"
mbed_official 579:53297373a894 143 //! [startup_vector_table]
mbed_official 579:53297373a894 144 const DeviceVectors __vector_table[] = {
mbed_official 579:53297373a894 145 __sfe("CSTACK"),
mbed_official 579:53297373a894 146 (void*) Reset_Handler,
mbed_official 579:53297373a894 147 (void*) NMI_Handler,
mbed_official 579:53297373a894 148 (void*) HardFault_Handler,
mbed_official 579:53297373a894 149 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 150 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 151 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 152 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 153 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 154 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 155 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 156 (void*) SVC_Handler,
mbed_official 579:53297373a894 157 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 158 (void*) (0UL), /* Reserved */
mbed_official 579:53297373a894 159 (void*) PendSV_Handler,
mbed_official 579:53297373a894 160 (void*) SysTick_Handler,
mbed_official 579:53297373a894 161
mbed_official 579:53297373a894 162 /* Configurable interrupts */
mbed_official 579:53297373a894 163 (void*) PM_Handler, /* 0 Power Manager */
mbed_official 579:53297373a894 164 (void*) SYSCTRL_Handler, /* 1 System Control */
mbed_official 579:53297373a894 165 (void*) WDT_Handler, /* 2 Watchdog Timer */
mbed_official 579:53297373a894 166 (void*) RTC_Handler, /* 3 Real-Time Counter */
mbed_official 579:53297373a894 167 (void*) EIC_Handler, /* 4 External Interrupt Controller */
mbed_official 579:53297373a894 168 (void*) NVMCTRL_Handler, /* 5 Non-Volatile Memory Controller */
mbed_official 579:53297373a894 169 (void*) DMAC_Handler, /* 6 Direct Memory Access Controller */
mbed_official 579:53297373a894 170 (void*) USB_Handler, /* 7 Universal Serial Bus */
mbed_official 579:53297373a894 171 (void*) EVSYS_Handler, /* 8 Event System Interface */
mbed_official 579:53297373a894 172 (void*) SERCOM0_Handler, /* 9 Serial Communication Interface 0 */
mbed_official 579:53297373a894 173 (void*) SERCOM1_Handler, /* 10 Serial Communication Interface 1 */
mbed_official 579:53297373a894 174 (void*) SERCOM2_Handler, /* 11 Serial Communication Interface 2 */
mbed_official 579:53297373a894 175 (void*) SERCOM3_Handler, /* 12 Serial Communication Interface 3 */
mbed_official 579:53297373a894 176 (void*) SERCOM4_Handler, /* 13 Serial Communication Interface 4 */
mbed_official 579:53297373a894 177 (void*) SERCOM5_Handler, /* 14 Serial Communication Interface 5 */
mbed_official 579:53297373a894 178 (void*) TCC0_Handler, /* 15 Timer Counter Control 0 */
mbed_official 579:53297373a894 179 (void*) TCC1_Handler, /* 16 Timer Counter Control 1 */
mbed_official 579:53297373a894 180 (void*) TCC2_Handler, /* 17 Timer Counter Control 2 */
mbed_official 579:53297373a894 181 (void*) TC3_Handler, /* 18 Basic Timer Counter 0 */
mbed_official 579:53297373a894 182 (void*) TC4_Handler, /* 19 Basic Timer Counter 1 */
mbed_official 579:53297373a894 183 (void*) TC5_Handler, /* 20 Basic Timer Counter 2 */
mbed_official 579:53297373a894 184 (void*) TC6_Handler, /* 21 Basic Timer Counter 3 */
mbed_official 579:53297373a894 185 (void*) TC7_Handler, /* 22 Basic Timer Counter 4 */
mbed_official 579:53297373a894 186 (void*) ADC_Handler, /* 23 Analog Digital Converter */
mbed_official 579:53297373a894 187 (void*) AC_Handler, /* 24 Analog Comparators */
mbed_official 579:53297373a894 188 (void*) DAC_Handler, /* 25 Digital Analog Converter */
mbed_official 579:53297373a894 189 (void*) PTC_Handler, /* 26 Peripheral Touch Controller */
mbed_official 579:53297373a894 190 (void*) I2S_Handler /* 27 Inter-IC Sound Interface */
mbed_official 579:53297373a894 191 };
mbed_official 579:53297373a894 192 //! [startup_vector_table]
mbed_official 579:53297373a894 193
mbed_official 579:53297373a894 194 /**------------------------------------------------------------------------------
mbed_official 579:53297373a894 195 * This is the code that gets called on processor reset. To initialize the
mbed_official 579:53297373a894 196 * device.
mbed_official 579:53297373a894 197 *------------------------------------------------------------------------------*/
mbed_official 579:53297373a894 198 int __low_level_init(void)
mbed_official 579:53297373a894 199 {
mbed_official 579:53297373a894 200 uint32_t *pSrc = __section_begin(".intvec");
mbed_official 579:53297373a894 201
mbed_official 579:53297373a894 202 SCB->VTOR = ((uint32_t) pSrc & SCB_VTOR_TBLOFF_Msk);
mbed_official 579:53297373a894 203
mbed_official 579:53297373a894 204 return 1; /* if return 0, the data sections will not be initialized */
mbed_official 579:53297373a894 205 }
mbed_official 579:53297373a894 206
mbed_official 579:53297373a894 207 /**------------------------------------------------------------------------------
mbed_official 579:53297373a894 208 * This is the code that gets called on processor reset. To initialize the
mbed_official 579:53297373a894 209 * device.
mbed_official 579:53297373a894 210 *------------------------------------------------------------------------------*/
mbed_official 579:53297373a894 211 void Reset_Handler(void)
mbed_official 579:53297373a894 212 {
mbed_official 579:53297373a894 213 __iar_program_start();
mbed_official 579:53297373a894 214 }