1 | /* ---------------------------------------------------------------------------- */ |
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2 | /* Atmel Microcontroller Software Support */ |
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3 | /* SAM Software Package License */ |
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4 | /* ---------------------------------------------------------------------------- */ |
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5 | /* Copyright (c) 2015, Atmel Corporation */ |
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6 | /* */ |
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7 | /* All rights reserved. */ |
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8 | /* */ |
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9 | /* Redistribution and use in source and binary forms, with or without */ |
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10 | /* modification, are permitted provided that the following condition is met: */ |
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11 | /* */ |
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12 | /* - Redistributions of source code must retain the above copyright notice, */ |
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13 | /* this list of conditions and the disclaimer below. */ |
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14 | /* */ |
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15 | /* Atmel's name may not be used to endorse or promote products derived from */ |
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16 | /* this software without specific prior written permission. */ |
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17 | /* */ |
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18 | /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ |
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19 | /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ |
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20 | /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ |
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21 | /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ |
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22 | /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ |
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23 | /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ |
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24 | /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ |
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25 | /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ |
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26 | /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ |
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27 | /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
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28 | /* ---------------------------------------------------------------------------- */ |
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29 | |
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30 | /** |
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31 | * \file |
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32 | * |
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33 | * \par Purpose |
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34 | * |
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35 | * Interface for Real Time Timer (RTT) controller. |
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36 | * |
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37 | * \par Usage |
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38 | * |
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39 | * -# Changes the prescaler value of the given RTT and restarts it |
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40 | * using \ref RTT_SetPrescaler(). |
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41 | * -# Get current value of the RTT using \ref RTT_GetTime(). |
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42 | * -# Enables the specified RTT interrupt using \ref RTT_EnableIT(). |
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43 | * -# Get the status register value of the given RTT using \ref RTT_GetStatus(). |
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44 | * -# Configures the RTT to generate an alarm at the given time |
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45 | * using \ref RTT_SetAlarm(). |
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46 | */ |
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47 | |
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48 | #ifndef _RTT_ |
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49 | #define _RTT_ |
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50 | |
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51 | /*---------------------------------------------------------------------------- |
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52 | * Headers |
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53 | *----------------------------------------------------------------------------*/ |
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54 | |
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55 | #include "chip.h" |
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56 | |
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57 | #include <stdint.h> |
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58 | |
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59 | /*---------------------------------------------------------------------------- |
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60 | * Exported functions |
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61 | *----------------------------------------------------------------------------*/ |
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62 | |
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63 | #ifdef __cplusplus |
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64 | extern "C" { |
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65 | #endif |
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66 | |
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67 | extern void RTT_SetPrescaler(Rtt *pRtt, uint16_t wPrescaler); |
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68 | |
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69 | extern uint32_t RTT_GetTime(Rtt *pRtt); |
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70 | |
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71 | extern void RTT_EnableIT(Rtt *pRtt, uint32_t dwSources); |
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72 | |
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73 | extern uint32_t RTT_GetStatus(Rtt *pRtt); |
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74 | |
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75 | extern void RTT_SetAlarm(Rtt *pRtt, uint32_t dwTime); |
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76 | |
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77 | #ifdef __cplusplus |
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78 | } |
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79 | #endif |
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80 | |
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81 | #endif /* #ifndef RTT_H */ |
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82 | |
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