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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