Kev Mann / mbed-dev-OS5_10_4

RTC auf true

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/rtc_api.c@0:38ceb79fef03, 2018-11-28 (annotated)

Committer:
kevman
Date:
Wed Nov 28 15:10:15 2018 +0000
Revision:
0:38ceb79fef03
Child:
2:7aab896b1a3b
RTC modified

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 // changed PeterS
kevman 0:38ceb79fef03 25 static bool rtc_time_set = true;
kevman 0:38ceb79fef03 26
kevman 0:38ceb79fef03 27 void rtc_init(void)
kevman 0:38ceb79fef03 28 {
kevman 0:38ceb79fef03 29 rtc_config_t rtcConfig;
kevman 0:38ceb79fef03 30
kevman 0:38ceb79fef03 31 RTC_GetDefaultConfig(&rtcConfig);
kevman 0:38ceb79fef03 32 RTC_Init(RTC, &rtcConfig);
kevman 0:38ceb79fef03 33
kevman 0:38ceb79fef03 34 RTC_StartTimer(RTC);
kevman 0:38ceb79fef03 35 }
kevman 0:38ceb79fef03 36
kevman 0:38ceb79fef03 37 void rtc_free(void)
kevman 0:38ceb79fef03 38 {
kevman 0:38ceb79fef03 39 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
kevman 0:38ceb79fef03 40 /* Gate the module clock */
kevman 0:38ceb79fef03 41 CLOCK_DisableClock(kCLOCK_Rtc0);
kevman 0:38ceb79fef03 42 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
kevman 0:38ceb79fef03 43 }
kevman 0:38ceb79fef03 44
kevman 0:38ceb79fef03 45 /*
kevman 0:38ceb79fef03 46 * Little check routine to see if the RTC has been initialized and time has been set
kevman 0:38ceb79fef03 47 * 0 = Disabled, 1 = Enabled
kevman 0:38ceb79fef03 48 */
kevman 0:38ceb79fef03 49 int rtc_isenabled(void)
kevman 0:38ceb79fef03 50 {
kevman 0:38ceb79fef03 51 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
kevman 0:38ceb79fef03 52 CLOCK_EnableClock(kCLOCK_Rtc0);
kevman 0:38ceb79fef03 53 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
kevman 0:38ceb79fef03 54
kevman 0:38ceb79fef03 55 const bool rtc_init_done = ((RTC->SR & RTC_SR_TCE_MASK) >> RTC_SR_TCE_SHIFT);
kevman 0:38ceb79fef03 56
kevman 0:38ceb79fef03 57 /* If RTC is not initialized, then disable the clock gate on exit. */
kevman 0:38ceb79fef03 58 if(!rtc_init_done) {
kevman 0:38ceb79fef03 59 rtc_free();
kevman 0:38ceb79fef03 60 }
kevman 0:38ceb79fef03 61
kevman 0:38ceb79fef03 62 return (rtc_init_done & rtc_time_set);
kevman 0:38ceb79fef03 63 }
kevman 0:38ceb79fef03 64
kevman 0:38ceb79fef03 65 time_t rtc_read(void)
kevman 0:38ceb79fef03 66 {
kevman 0:38ceb79fef03 67 return (time_t)RTC->TSR;
kevman 0:38ceb79fef03 68 }
kevman 0:38ceb79fef03 69
kevman 0:38ceb79fef03 70 void rtc_write(time_t t)
kevman 0:38ceb79fef03 71 {
kevman 0:38ceb79fef03 72 RTC_StopTimer(RTC);
kevman 0:38ceb79fef03 73 RTC->TSR = t;
kevman 0:38ceb79fef03 74 RTC_StartTimer(RTC);
kevman 0:38ceb79fef03 75
kevman 0:38ceb79fef03 76 rtc_time_set = true;
kevman 0:38ceb79fef03 77 }
kevman 0:38ceb79fef03 78
kevman 0:38ceb79fef03 79 #endif