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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_Atmel/TARGET_SAM21/drivers/system/reset/reset_sam_d_r/reset.h@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?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 579:53297373a894 | 1 | /** |
| mbed_official | 579:53297373a894 | 2 | * \file |
| mbed_official | 579:53297373a894 | 3 | * |
| mbed_official | 579:53297373a894 | 4 | * \brief SAM Reset related functionality |
| mbed_official | 579:53297373a894 | 5 | * |
| mbed_official | 579:53297373a894 | 6 | * Copyright (C) 2014 Atmel Corporation. All rights reserved. |
| mbed_official | 579:53297373a894 | 7 | * |
| mbed_official | 579:53297373a894 | 8 | * \asf_license_start |
| mbed_official | 579:53297373a894 | 9 | * |
| mbed_official | 579:53297373a894 | 10 | * \page License |
| mbed_official | 579:53297373a894 | 11 | * |
| mbed_official | 579:53297373a894 | 12 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 579:53297373a894 | 13 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 579:53297373a894 | 14 | * |
| mbed_official | 579:53297373a894 | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 579:53297373a894 | 16 | * this list of conditions and the following disclaimer. |
| mbed_official | 579:53297373a894 | 17 | * |
| mbed_official | 579:53297373a894 | 18 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 579:53297373a894 | 19 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 579:53297373a894 | 20 | * and/or other materials provided with the distribution. |
| mbed_official | 579:53297373a894 | 21 | * |
| mbed_official | 579:53297373a894 | 22 | * 3. The name of Atmel may not be used to endorse or promote products derived |
| mbed_official | 579:53297373a894 | 23 | * from this software without specific prior written permission. |
| mbed_official | 579:53297373a894 | 24 | * |
| mbed_official | 579:53297373a894 | 25 | * 4. This software may only be redistributed and used in connection with an |
| mbed_official | 579:53297373a894 | 26 | * Atmel microcontroller product. |
| mbed_official | 579:53297373a894 | 27 | * |
| mbed_official | 579:53297373a894 | 28 | * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED |
| mbed_official | 579:53297373a894 | 29 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| mbed_official | 579:53297373a894 | 30 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| mbed_official | 579:53297373a894 | 31 | * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR |
| mbed_official | 579:53297373a894 | 32 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 579:53297373a894 | 33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| mbed_official | 579:53297373a894 | 34 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| mbed_official | 579:53297373a894 | 35 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| mbed_official | 579:53297373a894 | 36 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| mbed_official | 579:53297373a894 | 37 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| mbed_official | 579:53297373a894 | 38 | * POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 579:53297373a894 | 39 | * |
| mbed_official | 579:53297373a894 | 40 | * \asf_license_stop |
| mbed_official | 579:53297373a894 | 41 | * |
| mbed_official | 579:53297373a894 | 42 | */ |
| mbed_official | 579:53297373a894 | 43 | /** |
| mbed_official | 579:53297373a894 | 44 | * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> |
| mbed_official | 579:53297373a894 | 45 | */ |
| mbed_official | 579:53297373a894 | 46 | #ifndef RESET_H_INCLUDED |
| mbed_official | 579:53297373a894 | 47 | #define RESET_H_INCLUDED |
| mbed_official | 579:53297373a894 | 48 | |
| mbed_official | 579:53297373a894 | 49 | #include <compiler.h> |
| mbed_official | 579:53297373a894 | 50 | |
| mbed_official | 579:53297373a894 | 51 | #ifdef __cplusplus |
| mbed_official | 579:53297373a894 | 52 | extern "C" { |
| mbed_official | 579:53297373a894 | 53 | #endif |
| mbed_official | 579:53297373a894 | 54 | |
| mbed_official | 579:53297373a894 | 55 | /** |
| mbed_official | 579:53297373a894 | 56 | * \addtogroup asfdoc_sam0_system_group |
| mbed_official | 579:53297373a894 | 57 | * @{ |
| mbed_official | 579:53297373a894 | 58 | */ |
| mbed_official | 579:53297373a894 | 59 | |
| mbed_official | 579:53297373a894 | 60 | /** |
| mbed_official | 579:53297373a894 | 61 | * \brief Reset causes of the system. |
| mbed_official | 579:53297373a894 | 62 | * |
| mbed_official | 579:53297373a894 | 63 | * List of possible reset causes of the system. |
| mbed_official | 579:53297373a894 | 64 | */ |
| mbed_official | 579:53297373a894 | 65 | enum system_reset_cause { |
| mbed_official | 579:53297373a894 | 66 | /** The system was last reset by a software reset. */ |
| mbed_official | 579:53297373a894 | 67 | SYSTEM_RESET_CAUSE_SOFTWARE = PM_RCAUSE_SYST, |
| mbed_official | 579:53297373a894 | 68 | /** The system was last reset by the watchdog timer. */ |
| mbed_official | 579:53297373a894 | 69 | SYSTEM_RESET_CAUSE_WDT = PM_RCAUSE_WDT, |
| mbed_official | 579:53297373a894 | 70 | /** The system was last reset because the external reset line was pulled low. */ |
| mbed_official | 579:53297373a894 | 71 | SYSTEM_RESET_CAUSE_EXTERNAL_RESET = PM_RCAUSE_EXT, |
| mbed_official | 579:53297373a894 | 72 | /** The system was last reset by the BOD33. */ |
| mbed_official | 579:53297373a894 | 73 | SYSTEM_RESET_CAUSE_BOD33 = PM_RCAUSE_BOD33, |
| mbed_official | 579:53297373a894 | 74 | /** The system was last reset by the BOD12. */ |
| mbed_official | 579:53297373a894 | 75 | SYSTEM_RESET_CAUSE_BOD12 = PM_RCAUSE_BOD12, |
| mbed_official | 579:53297373a894 | 76 | /** The system was last reset by the POR (Power on reset). */ |
| mbed_official | 579:53297373a894 | 77 | SYSTEM_RESET_CAUSE_POR = PM_RCAUSE_POR, |
| mbed_official | 579:53297373a894 | 78 | }; |
| mbed_official | 579:53297373a894 | 79 | |
| mbed_official | 579:53297373a894 | 80 | |
| mbed_official | 579:53297373a894 | 81 | /** |
| mbed_official | 579:53297373a894 | 82 | * \name Reset Control |
| mbed_official | 579:53297373a894 | 83 | * @{ |
| mbed_official | 579:53297373a894 | 84 | */ |
| mbed_official | 579:53297373a894 | 85 | |
| mbed_official | 579:53297373a894 | 86 | /** |
| mbed_official | 579:53297373a894 | 87 | * \brief Reset the MCU. |
| mbed_official | 579:53297373a894 | 88 | * |
| mbed_official | 579:53297373a894 | 89 | * Resets the MCU and all associated peripherals and registers, except RTC, all 32kHz sources, |
| mbed_official | 579:53297373a894 | 90 | * WDT (if ALWAYSON is set) and GCLK (if WRTLOCK is set). |
| mbed_official | 579:53297373a894 | 91 | * |
| mbed_official | 579:53297373a894 | 92 | */ |
| mbed_official | 579:53297373a894 | 93 | static inline void system_reset(void) |
| mbed_official | 579:53297373a894 | 94 | { |
| mbed_official | 579:53297373a894 | 95 | NVIC_SystemReset(); |
| mbed_official | 579:53297373a894 | 96 | } |
| mbed_official | 579:53297373a894 | 97 | |
| mbed_official | 579:53297373a894 | 98 | /** |
| mbed_official | 579:53297373a894 | 99 | * \brief Return the reset cause. |
| mbed_official | 579:53297373a894 | 100 | * |
| mbed_official | 579:53297373a894 | 101 | * Retrieves the cause of the last system reset. |
| mbed_official | 579:53297373a894 | 102 | * |
| mbed_official | 579:53297373a894 | 103 | * \return An enum value indicating the cause of the last system reset. |
| mbed_official | 579:53297373a894 | 104 | */ |
| mbed_official | 579:53297373a894 | 105 | static inline enum system_reset_cause system_get_reset_cause(void) |
| mbed_official | 579:53297373a894 | 106 | { |
| mbed_official | 579:53297373a894 | 107 | return (enum system_reset_cause)PM->RCAUSE.reg; |
| mbed_official | 579:53297373a894 | 108 | } |
| mbed_official | 579:53297373a894 | 109 | |
| mbed_official | 579:53297373a894 | 110 | /** |
| mbed_official | 579:53297373a894 | 111 | * @} |
| mbed_official | 579:53297373a894 | 112 | */ |
| mbed_official | 579:53297373a894 | 113 | |
| mbed_official | 579:53297373a894 | 114 | /** @} */ |
| mbed_official | 579:53297373a894 | 115 | #ifdef __cplusplus |
| mbed_official | 579:53297373a894 | 116 | } |
| mbed_official | 579:53297373a894 | 117 | #endif |
| mbed_official | 579:53297373a894 | 118 | |
| mbed_official | 579:53297373a894 | 119 | #endif /* RESET_H_INCLUDED */ |
