[270] | 1 | /* mbed Microcontroller Library
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| 2 | * Copyright (c) 2006-2013 ARM Limited
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | #ifndef MBED_SLEEP_API_H
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| 17 | #define MBED_SLEEP_API_H
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| 18 |
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| 19 | #include "device.h"
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| 20 |
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| 21 | #if DEVICE_SLEEP
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| 22 |
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| 23 | #ifdef __cplusplus
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| 24 | extern "C" {
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| 25 | #endif
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| 26 |
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| 27 | /** Send the microcontroller to sleep
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| 28 | *
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| 29 | * The processor is setup ready for sleep, and sent to sleep using __WFI(). In this mode, the
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| 30 | * system clock to the core is stopped until a reset or an interrupt occurs. This eliminates
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| 31 | * dynamic power used by the processor, memory systems and buses. The processor, peripheral and
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| 32 | * memory state are maintained, and the peripherals continue to work and can generate interrupts.
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| 33 | *
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| 34 | * The processor can be woken up by any internal peripheral interrupt or external pin interrupt.
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| 35 | *
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| 36 | * @note
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| 37 | * The mbed interface semihosting is disconnected as part of going to sleep, and can not be restored.
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| 38 | * Flash re-programming and the USB serial port will remain active, but the mbed program will no longer be
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| 39 | * able to access the LocalFileSystem
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| 40 | */
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| 41 | void sleep(void);
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| 42 |
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| 43 | /** Send the microcontroller to deep sleep
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| 44 | *
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| 45 | * This processor is setup ready for deep sleep, and sent to sleep using __WFI(). This mode
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| 46 | * has the same sleep features as sleep plus it powers down peripherals and clocks. All state
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| 47 | * is still maintained.
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| 48 | *
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| 49 | * The processor can only be woken up by an external interrupt on a pin or a watchdog timer.
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| 50 | *
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| 51 | * @note
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| 52 | * The mbed interface semihosting is disconnected as part of going to sleep, and can not be restored.
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| 53 | * Flash re-programming and the USB serial port will remain active, but the mbed program will no longer be
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| 54 | * able to access the LocalFileSystem
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| 55 | */
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| 56 | void deepsleep(void);
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| 57 |
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| 58 | #ifdef __cplusplus
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| 59 | }
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| 60 | #endif
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| 61 |
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| 62 | #endif
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| 63 |
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| 64 | #endif
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