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TARGET_SAMR21G18A/TOOLCHAIN_ARM_MICRO/reset.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 111:4336505e4b1c 1 /**
Kojto 111:4336505e4b1c 2 * \file
Kojto 111:4336505e4b1c 3 *
Kojto 111:4336505e4b1c 4 * \brief SAM Reset related functionality
Kojto 111:4336505e4b1c 5 *
Kojto 111:4336505e4b1c 6 * Copyright (C) 2014-2015 Atmel Corporation. All rights reserved.
Kojto 111:4336505e4b1c 7 *
Kojto 111:4336505e4b1c 8 * \asf_license_start
Kojto 111:4336505e4b1c 9 *
Kojto 111:4336505e4b1c 10 * \page License
Kojto 111:4336505e4b1c 11 *
Kojto 111:4336505e4b1c 12 * Redistribution and use in source and binary forms, with or without
Kojto 111:4336505e4b1c 13 * modification, are permitted provided that the following conditions are met:
Kojto 111:4336505e4b1c 14 *
Kojto 111:4336505e4b1c 15 * 1. Redistributions of source code must retain the above copyright notice,
Kojto 111:4336505e4b1c 16 * this list of conditions and the following disclaimer.
Kojto 111:4336505e4b1c 17 *
Kojto 111:4336505e4b1c 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
Kojto 111:4336505e4b1c 19 * this list of conditions and the following disclaimer in the documentation
Kojto 111:4336505e4b1c 20 * and/or other materials provided with the distribution.
Kojto 111:4336505e4b1c 21 *
Kojto 111:4336505e4b1c 22 * 3. The name of Atmel may not be used to endorse or promote products derived
Kojto 111:4336505e4b1c 23 * from this software without specific prior written permission.
Kojto 111:4336505e4b1c 24 *
Kojto 111:4336505e4b1c 25 * 4. This software may only be redistributed and used in connection with an
Kojto 111:4336505e4b1c 26 * Atmel microcontroller product.
Kojto 111:4336505e4b1c 27 *
Kojto 111:4336505e4b1c 28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
Kojto 111:4336505e4b1c 29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
Kojto 111:4336505e4b1c 30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
Kojto 111:4336505e4b1c 31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
Kojto 111:4336505e4b1c 32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Kojto 111:4336505e4b1c 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
Kojto 111:4336505e4b1c 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
Kojto 111:4336505e4b1c 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
Kojto 111:4336505e4b1c 36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
Kojto 111:4336505e4b1c 37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Kojto 111:4336505e4b1c 38 * POSSIBILITY OF SUCH DAMAGE.
Kojto 111:4336505e4b1c 39 *
Kojto 111:4336505e4b1c 40 * \asf_license_stop
Kojto 111:4336505e4b1c 41 *
Kojto 111:4336505e4b1c 42 */
Kojto 111:4336505e4b1c 43 /*
Kojto 111:4336505e4b1c 44 * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
Kojto 111:4336505e4b1c 45 */
Kojto 111:4336505e4b1c 46 #ifndef RESET_H_INCLUDED
Kojto 111:4336505e4b1c 47 #define RESET_H_INCLUDED
Kojto 111:4336505e4b1c 48
Kojto 111:4336505e4b1c 49 #include <compiler.h>
Kojto 111:4336505e4b1c 50
Kojto 111:4336505e4b1c 51 #ifdef __cplusplus
Kojto 111:4336505e4b1c 52 extern "C" {
Kojto 111:4336505e4b1c 53 #endif
Kojto 111:4336505e4b1c 54
Kojto 111:4336505e4b1c 55 /**
Kojto 111:4336505e4b1c 56 * \addtogroup asfdoc_sam0_system_group
Kojto 111:4336505e4b1c 57 * @{
Kojto 111:4336505e4b1c 58 */
Kojto 111:4336505e4b1c 59
Kojto 111:4336505e4b1c 60 /**
Kojto 111:4336505e4b1c 61 * \brief Reset causes of the system.
Kojto 111:4336505e4b1c 62 *
Kojto 111:4336505e4b1c 63 * List of possible reset causes of the system.
Kojto 111:4336505e4b1c 64 */
Kojto 111:4336505e4b1c 65 enum system_reset_cause {
Kojto 111:4336505e4b1c 66 /** The system was last reset by a software reset. */
Kojto 111:4336505e4b1c 67 SYSTEM_RESET_CAUSE_SOFTWARE = PM_RCAUSE_SYST,
Kojto 111:4336505e4b1c 68 /** The system was last reset by the watchdog timer. */
Kojto 111:4336505e4b1c 69 SYSTEM_RESET_CAUSE_WDT = PM_RCAUSE_WDT,
Kojto 111:4336505e4b1c 70 /** The system was last reset because the external reset line was pulled low. */
Kojto 111:4336505e4b1c 71 SYSTEM_RESET_CAUSE_EXTERNAL_RESET = PM_RCAUSE_EXT,
Kojto 111:4336505e4b1c 72 /** The system was last reset by the BOD33. */
Kojto 111:4336505e4b1c 73 SYSTEM_RESET_CAUSE_BOD33 = PM_RCAUSE_BOD33,
Kojto 111:4336505e4b1c 74 /** The system was last reset by the BOD12. */
Kojto 111:4336505e4b1c 75 SYSTEM_RESET_CAUSE_BOD12 = PM_RCAUSE_BOD12,
Kojto 111:4336505e4b1c 76 /** The system was last reset by the POR (Power on reset). */
Kojto 111:4336505e4b1c 77 SYSTEM_RESET_CAUSE_POR = PM_RCAUSE_POR,
Kojto 111:4336505e4b1c 78 };
Kojto 111:4336505e4b1c 79
Kojto 111:4336505e4b1c 80
Kojto 111:4336505e4b1c 81 /**
Kojto 111:4336505e4b1c 82 * \name Reset Control
Kojto 111:4336505e4b1c 83 * @{
Kojto 111:4336505e4b1c 84 */
Kojto 111:4336505e4b1c 85
Kojto 111:4336505e4b1c 86 /**
Kojto 111:4336505e4b1c 87 * \brief Return the reset cause.
Kojto 111:4336505e4b1c 88 *
Kojto 111:4336505e4b1c 89 * Retrieves the cause of the last system reset.
Kojto 111:4336505e4b1c 90 *
Kojto 111:4336505e4b1c 91 * \return An enum value indicating the cause of the last system reset.
Kojto 111:4336505e4b1c 92 */
Kojto 111:4336505e4b1c 93 static inline enum system_reset_cause system_get_reset_cause(void)
Kojto 111:4336505e4b1c 94 {
Kojto 111:4336505e4b1c 95 return (enum system_reset_cause)PM->RCAUSE.reg;
Kojto 111:4336505e4b1c 96 }
Kojto 111:4336505e4b1c 97
Kojto 111:4336505e4b1c 98 /**
Kojto 111:4336505e4b1c 99 * @}
Kojto 111:4336505e4b1c 100 */
Kojto 111:4336505e4b1c 101
Kojto 111:4336505e4b1c 102 /** @} */
Kojto 111:4336505e4b1c 103 #ifdef __cplusplus
Kojto 111:4336505e4b1c 104 }
Kojto 111:4336505e4b1c 105 #endif
Kojto 111:4336505e4b1c 106
Kojto 111:4336505e4b1c 107 #endif /* RESET_H_INCLUDED */