Kev Mann / mbed-dev-OS5_10_4

RTC auf true

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/rtc_api.c@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /* mbed Microcontroller Library
kevman 0:38ceb79fef03 2 * Copyright (c) 2006-2013 ARM Limited
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Licensed under the Apache License, Version 2.0 (the "License");
kevman 0:38ceb79fef03 5 * you may not use this file except in compliance with the License.
kevman 0:38ceb79fef03 6 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 7 *
kevman 0:38ceb79fef03 8 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 9 *
kevman 0:38ceb79fef03 10 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 11 * distributed under the License is distributed on an "AS IS" BASIS,
kevman 0:38ceb79fef03 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 13 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 14 * limitations under the License.
kevman 0:38ceb79fef03 15 */
kevman 0:38ceb79fef03 16 #include "rtc_api.h"
kevman 0:38ceb79fef03 17
kevman 0:38ceb79fef03 18 #if DEVICE_RTC || DEVICE_LPTICKER
kevman 0:38ceb79fef03 19
kevman 0:38ceb79fef03 20 #include "pinmap.h"
kevman 0:38ceb79fef03 21 #include "fsl_rtc.h"
kevman 0:38ceb79fef03 22 #include "PeripheralPins.h"
kevman 0:38ceb79fef03 23
kevman 0:38ceb79fef03 24 static bool rtc_time_set = true;
kevman 0:38ceb79fef03 25
kevman 0:38ceb79fef03 26 void rtc_init(void)
kevman 0:38ceb79fef03 27 {
kevman 0:38ceb79fef03 28 rtc_config_t rtcConfig;
kevman 0:38ceb79fef03 29
kevman 0:38ceb79fef03 30 RTC_GetDefaultConfig(&rtcConfig);
kevman 0:38ceb79fef03 31 RTC_Init(RTC, &rtcConfig);
kevman 0:38ceb79fef03 32
kevman 0:38ceb79fef03 33 RTC_StartTimer(RTC);
kevman 0:38ceb79fef03 34 }
kevman 0:38ceb79fef03 35
kevman 0:38ceb79fef03 36 void rtc_free(void)
kevman 0:38ceb79fef03 37 {
kevman 0:38ceb79fef03 38 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
kevman 0:38ceb79fef03 39 /* Gate the module clock */
kevman 0:38ceb79fef03 40 CLOCK_DisableClock(kCLOCK_Rtc0);
kevman 0:38ceb79fef03 41 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
kevman 0:38ceb79fef03 42 }
kevman 0:38ceb79fef03 43
kevman 0:38ceb79fef03 44 /*
kevman 0:38ceb79fef03 45 * Little check routine to see if the RTC has been initialized and time has been set
kevman 0:38ceb79fef03 46 * 0 = Disabled, 1 = Enabled
kevman 0:38ceb79fef03 47 */
kevman 0:38ceb79fef03 48 int rtc_isenabled(void)
kevman 0:38ceb79fef03 49 {
kevman 0:38ceb79fef03 50 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
kevman 0:38ceb79fef03 51 CLOCK_EnableClock(kCLOCK_Rtc0);
kevman 0:38ceb79fef03 52 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
kevman 0:38ceb79fef03 53
kevman 0:38ceb79fef03 54 const bool rtc_init_done = ((RTC->SR & RTC_SR_TCE_MASK) >> RTC_SR_TCE_SHIFT);
kevman 0:38ceb79fef03 55
kevman 0:38ceb79fef03 56 /* If RTC is not initialized, then disable the clock gate on exit. */
kevman 0:38ceb79fef03 57 if(!rtc_init_done) {
kevman 0:38ceb79fef03 58 rtc_free();
kevman 0:38ceb79fef03 59 }
kevman 0:38ceb79fef03 60
kevman 0:38ceb79fef03 61 return (rtc_init_done & rtc_time_set);
kevman 0:38ceb79fef03 62 }
kevman 0:38ceb79fef03 63
kevman 0:38ceb79fef03 64 time_t rtc_read(void)
kevman 0:38ceb79fef03 65 {
kevman 0:38ceb79fef03 66 return (time_t)RTC->TSR;
kevman 0:38ceb79fef03 67 }
kevman 0:38ceb79fef03 68
kevman 0:38ceb79fef03 69 void rtc_write(time_t t)
kevman 0:38ceb79fef03 70 {
kevman 0:38ceb79fef03 71 RTC_StopTimer(RTC);
kevman 0:38ceb79fef03 72 RTC->TSR = t;
kevman 0:38ceb79fef03 73 RTC_StartTimer(RTC);
kevman 0:38ceb79fef03 74
kevman 0:38ceb79fef03 75 rtc_time_set = true;
kevman 0:38ceb79fef03 76 }
kevman 0:38ceb79fef03 77
kevman 0:38ceb79fef03 78 #endif