mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_ONSEMI/TARGET_NCS36510/ncs36510_lp_ticker_api.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
186:707f6e361f3e 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1 /**
<> 149:156823d33999 2 *******************************************************************************
<> 149:156823d33999 3 * @file lpticker.c
<> 149:156823d33999 4 * @brief Implementation of a Low Power Ticker functionality based on RTC
<> 149:156823d33999 5 * @internal
<> 149:156823d33999 6 * @author ON Semiconductor
<> 149:156823d33999 7 * $Rev: $
<> 149:156823d33999 8 * $Date: $
<> 149:156823d33999 9 ******************************************************************************
Anna Bridge 186:707f6e361f3e 10 * Copyright 2016 Semiconductor Components Industries LLC (d/b/a �ON Semiconductor�).
<> 149:156823d33999 11 * All rights reserved. This software and/or documentation is licensed by ON Semiconductor
<> 149:156823d33999 12 * under limited terms and conditions. The terms and conditions pertaining to the software
<> 149:156823d33999 13 * and/or documentation are available at http://www.onsemi.com/site/pdf/ONSEMI_T&C.pdf
Anna Bridge 186:707f6e361f3e 14 * (�ON Semiconductor Standard Terms and Conditions of Sale, Section 8 Software�) and
<> 149:156823d33999 15 * if applicable the software license agreement. Do not use this software and/or
<> 149:156823d33999 16 * documentation unless you have carefully read and you agree to the limited terms and
<> 149:156823d33999 17 * conditions. By using this software and/or documentation, you agree to the limited
<> 149:156823d33999 18 * terms and conditions.
<> 149:156823d33999 19 *
<> 149:156823d33999 20 * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
<> 149:156823d33999 21 * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
<> 149:156823d33999 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
<> 149:156823d33999 23 * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
<> 149:156823d33999 24 * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
<> 149:156823d33999 25 * @endinternal
<> 149:156823d33999 26 *
<> 149:156823d33999 27 * @ingroup lpticker
<> 149:156823d33999 28 *
<> 149:156823d33999 29 * @details
<> 149:156823d33999 30 * This is Low Power ticker derived from RTC
<> 149:156823d33999 31 *
<> 149:156823d33999 32 */
<> 149:156823d33999 33
<> 149:156823d33999 34 #include "device.h"
Anna Bridge 186:707f6e361f3e 35 #if DEVICE_LPTICKER
<> 149:156823d33999 36
<> 149:156823d33999 37 #include "cmsis_nvic.h"
<> 149:156823d33999 38 #include "lp_ticker_api.h"
<> 149:156823d33999 39 #include "rtc.h"
<> 149:156823d33999 40 #include "rtc_map.h"
<> 149:156823d33999 41
<> 149:156823d33999 42 /* Initialize the RTC for low power ticker */
<> 149:156823d33999 43 void lp_ticker_init()
<> 149:156823d33999 44 {
<> 149:156823d33999 45 fRtcInit();
<> 149:156823d33999 46 }
<> 149:156823d33999 47
<> 149:156823d33999 48 /* Return the current RTC counter value in us */
<> 149:156823d33999 49 uint32_t lp_ticker_read()
<> 149:156823d33999 50 {
<> 149:156823d33999 51 return (uint32_t)(fRtcRead() & 0xFFFFFFFF); /* TODO Truncating 64 bit value to 32 bit */
<> 149:156823d33999 52 }
<> 149:156823d33999 53
<> 149:156823d33999 54 /* Set interrupt for specified time */
<> 149:156823d33999 55 void lp_ticker_set_interrupt(timestamp_t timestamp)
<> 149:156823d33999 56 {
<> 149:156823d33999 57 /* The RTC Match register needs to be Set to the RTC alarm value */
<> 149:156823d33999 58 fRtcSetInterrupt(timestamp);
<> 149:156823d33999 59 }
<> 149:156823d33999 60
AnnaBridge 174:b96e65c34a4d 61 void lp_ticker_fire_interrupt(void)
AnnaBridge 174:b96e65c34a4d 62 {
AnnaBridge 174:b96e65c34a4d 63 NVIC_SetPendingIRQ(Rtc_IRQn);
AnnaBridge 174:b96e65c34a4d 64 }
AnnaBridge 174:b96e65c34a4d 65
<> 149:156823d33999 66 /** Disable low power ticker interrupt
<> 149:156823d33999 67 *
<> 149:156823d33999 68 */
<> 149:156823d33999 69 void lp_ticker_disable_interrupt(void)
<> 149:156823d33999 70 {
<> 149:156823d33999 71 fRtcDisableInterrupt();
<> 149:156823d33999 72 }
<> 149:156823d33999 73
<> 149:156823d33999 74 /** Clear the low power ticker interrupt
<> 149:156823d33999 75 *
<> 149:156823d33999 76 */
<> 149:156823d33999 77 void lp_ticker_clear_interrupt(void)
<> 149:156823d33999 78 {
<> 149:156823d33999 79 fRtcClearInterrupt();
<> 149:156823d33999 80 }
<> 149:156823d33999 81
Anna Bridge 186:707f6e361f3e 82 #endif /* DEVICE_LPTICKER */