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TARGET_DISCO_F303VC/TOOLCHAIN_ARM_MICRO/rtc_api_hal.h@171:3a7713b1edbc, 2018-11-08 (annotated)
- Committer:
- AnnaBridge
- Date:
- Thu Nov 08 11:45:42 2018 +0000
- Revision:
- 171:3a7713b1edbc
mbed library. Release version 164
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AnnaBridge | 171:3a7713b1edbc | 1 | /* mbed Microcontroller Library |
AnnaBridge | 171:3a7713b1edbc | 2 | ******************************************************************************* |
AnnaBridge | 171:3a7713b1edbc | 3 | * Copyright (c) 2018, STMicroelectronics |
AnnaBridge | 171:3a7713b1edbc | 4 | * All rights reserved. |
AnnaBridge | 171:3a7713b1edbc | 5 | * |
AnnaBridge | 171:3a7713b1edbc | 6 | * Redistribution and use in source and binary forms, with or without |
AnnaBridge | 171:3a7713b1edbc | 7 | * modification, are permitted provided that the following conditions are met: |
AnnaBridge | 171:3a7713b1edbc | 8 | * |
AnnaBridge | 171:3a7713b1edbc | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
AnnaBridge | 171:3a7713b1edbc | 10 | * this list of conditions and the following disclaimer. |
AnnaBridge | 171:3a7713b1edbc | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
AnnaBridge | 171:3a7713b1edbc | 12 | * this list of conditions and the following disclaimer in the documentation |
AnnaBridge | 171:3a7713b1edbc | 13 | * and/or other materials provided with the distribution. |
AnnaBridge | 171:3a7713b1edbc | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
AnnaBridge | 171:3a7713b1edbc | 15 | * may be used to endorse or promote products derived from this software |
AnnaBridge | 171:3a7713b1edbc | 16 | * without specific prior written permission. |
AnnaBridge | 171:3a7713b1edbc | 17 | * |
AnnaBridge | 171:3a7713b1edbc | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
AnnaBridge | 171:3a7713b1edbc | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
AnnaBridge | 171:3a7713b1edbc | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
AnnaBridge | 171:3a7713b1edbc | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
AnnaBridge | 171:3a7713b1edbc | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
AnnaBridge | 171:3a7713b1edbc | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
AnnaBridge | 171:3a7713b1edbc | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
AnnaBridge | 171:3a7713b1edbc | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
AnnaBridge | 171:3a7713b1edbc | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
AnnaBridge | 171:3a7713b1edbc | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
AnnaBridge | 171:3a7713b1edbc | 28 | ******************************************************************************* |
AnnaBridge | 171:3a7713b1edbc | 29 | */ |
AnnaBridge | 171:3a7713b1edbc | 30 | |
AnnaBridge | 171:3a7713b1edbc | 31 | #ifndef MBED_RTC_API_HAL_H |
AnnaBridge | 171:3a7713b1edbc | 32 | #define MBED_RTC_API_HAL_H |
AnnaBridge | 171:3a7713b1edbc | 33 | |
AnnaBridge | 171:3a7713b1edbc | 34 | #include "rtc_api.h" |
AnnaBridge | 171:3a7713b1edbc | 35 | #include "lp_ticker_api.h" |
AnnaBridge | 171:3a7713b1edbc | 36 | |
AnnaBridge | 171:3a7713b1edbc | 37 | #ifdef __cplusplus |
AnnaBridge | 171:3a7713b1edbc | 38 | extern "C" { |
AnnaBridge | 171:3a7713b1edbc | 39 | #endif |
AnnaBridge | 171:3a7713b1edbc | 40 | |
AnnaBridge | 171:3a7713b1edbc | 41 | #if MBED_CONF_TARGET_LSE_AVAILABLE |
AnnaBridge | 171:3a7713b1edbc | 42 | #define RTC_CLOCK LSE_VALUE |
AnnaBridge | 171:3a7713b1edbc | 43 | #else |
AnnaBridge | 171:3a7713b1edbc | 44 | #define RTC_CLOCK LSI_VALUE |
AnnaBridge | 171:3a7713b1edbc | 45 | #endif |
AnnaBridge | 171:3a7713b1edbc | 46 | |
AnnaBridge | 171:3a7713b1edbc | 47 | #if DEVICE_LPTICKER && !MBED_CONF_TARGET_LPTICKER_LPTIM |
AnnaBridge | 171:3a7713b1edbc | 48 | /* PREDIV_A : 7-bit asynchronous prescaler */ |
AnnaBridge | 171:3a7713b1edbc | 49 | /* PREDIV_A is set to set LPTICKER frequency to RTC_CLOCK/4 */ |
AnnaBridge | 171:3a7713b1edbc | 50 | #define PREDIV_A_VALUE 3 |
AnnaBridge | 171:3a7713b1edbc | 51 | |
AnnaBridge | 171:3a7713b1edbc | 52 | /** Read RTC counter with sub second precision |
AnnaBridge | 171:3a7713b1edbc | 53 | * |
AnnaBridge | 171:3a7713b1edbc | 54 | * @return LP ticker counter |
AnnaBridge | 171:3a7713b1edbc | 55 | */ |
AnnaBridge | 171:3a7713b1edbc | 56 | uint32_t rtc_read_lp(void); |
AnnaBridge | 171:3a7713b1edbc | 57 | |
AnnaBridge | 171:3a7713b1edbc | 58 | /** Program a wake up timer event |
AnnaBridge | 171:3a7713b1edbc | 59 | * |
AnnaBridge | 171:3a7713b1edbc | 60 | * @param timestamp: counter to set |
AnnaBridge | 171:3a7713b1edbc | 61 | */ |
AnnaBridge | 171:3a7713b1edbc | 62 | void rtc_set_wake_up_timer(timestamp_t timestamp); |
AnnaBridge | 171:3a7713b1edbc | 63 | |
AnnaBridge | 171:3a7713b1edbc | 64 | /** Call RTC Wake Up IT |
AnnaBridge | 171:3a7713b1edbc | 65 | */ |
AnnaBridge | 171:3a7713b1edbc | 66 | void rtc_fire_interrupt(void); |
AnnaBridge | 171:3a7713b1edbc | 67 | |
AnnaBridge | 171:3a7713b1edbc | 68 | /** Disable the wake up timer event. |
AnnaBridge | 171:3a7713b1edbc | 69 | * |
AnnaBridge | 171:3a7713b1edbc | 70 | * The wake up timer use auto reload, you have to deactivate it manually. |
AnnaBridge | 171:3a7713b1edbc | 71 | */ |
AnnaBridge | 171:3a7713b1edbc | 72 | void rtc_deactivate_wake_up_timer(void); |
AnnaBridge | 171:3a7713b1edbc | 73 | |
AnnaBridge | 171:3a7713b1edbc | 74 | #else /* DEVICE_LPTICKER && !MBED_CONF_TARGET_LPTICKER_LPTIM */ |
AnnaBridge | 171:3a7713b1edbc | 75 | |
AnnaBridge | 171:3a7713b1edbc | 76 | /* PREDIV_A : 7-bit asynchronous prescaler */ |
AnnaBridge | 171:3a7713b1edbc | 77 | /* PREDIV_A is set to the maximum value to improve the consumption */ |
AnnaBridge | 171:3a7713b1edbc | 78 | #define PREDIV_A_VALUE 127 |
AnnaBridge | 171:3a7713b1edbc | 79 | |
AnnaBridge | 171:3a7713b1edbc | 80 | #endif /* DEVICE_LPTICKER && !MBED_CONF_TARGET_LPTICKER_LPTIM */ |
AnnaBridge | 171:3a7713b1edbc | 81 | |
AnnaBridge | 171:3a7713b1edbc | 82 | /* PREDIV_S : 15-bit synchronous prescaler */ |
AnnaBridge | 171:3a7713b1edbc | 83 | /* PREDIV_S is set in order to get a 1 Hz clock */ |
AnnaBridge | 171:3a7713b1edbc | 84 | #define PREDIV_S_VALUE (RTC_CLOCK / (PREDIV_A_VALUE + 1) - 1) |
AnnaBridge | 171:3a7713b1edbc | 85 | |
AnnaBridge | 171:3a7713b1edbc | 86 | /** Synchronise the RTC shadow registers. |
AnnaBridge | 171:3a7713b1edbc | 87 | * |
AnnaBridge | 171:3a7713b1edbc | 88 | * Must be called after a deepsleep. |
AnnaBridge | 171:3a7713b1edbc | 89 | */ |
AnnaBridge | 171:3a7713b1edbc | 90 | void rtc_synchronize(void); |
AnnaBridge | 171:3a7713b1edbc | 91 | |
AnnaBridge | 171:3a7713b1edbc | 92 | #ifdef __cplusplus |
AnnaBridge | 171:3a7713b1edbc | 93 | } |
AnnaBridge | 171:3a7713b1edbc | 94 | #endif |
AnnaBridge | 171:3a7713b1edbc | 95 | |
AnnaBridge | 171:3a7713b1edbc | 96 | #endif |