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targets/hal/TARGET_Freescale/TARGET_KSDK_MCUS/TARGET_K64F/rtc_api.c@146:f64d43ff0c18, 2014-04-02 (annotated)

Committer:
mbed_official
Date:
Wed Apr 02 21:00:08 2014 +0100
Revision:
146:f64d43ff0c18
Synchronized with git revision d537c51d26da35e031d537f7fc90380fc74cb207



Full URL: https://github.com/mbedmicro/mbed/commit/d537c51d26da35e031d537f7fc90380fc74cb207/



target K64F

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 146:f64d43ff0c18 1 /* mbed Microcontroller Library
mbed_official 146:f64d43ff0c18 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 146:f64d43ff0c18 3 *
mbed_official 146:f64d43ff0c18 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 146:f64d43ff0c18 5 * you may not use this file except in compliance with the License.
mbed_official 146:f64d43ff0c18 6 * You may obtain a copy of the License at
mbed_official 146:f64d43ff0c18 7 *
mbed_official 146:f64d43ff0c18 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 146:f64d43ff0c18 9 *
mbed_official 146:f64d43ff0c18 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 146:f64d43ff0c18 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 146:f64d43ff0c18 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 146:f64d43ff0c18 13 * See the License for the specific language governing permissions and
mbed_official 146:f64d43ff0c18 14 * limitations under the License.
mbed_official 146:f64d43ff0c18 15 */
mbed_official 146:f64d43ff0c18 16 #include "rtc_api.h"
mbed_official 146:f64d43ff0c18 17 #include "pinmap.h"
mbed_official 146:f64d43ff0c18 18 #include "fsl_rtc_hal.h"
mbed_official 146:f64d43ff0c18 19 #include "fsl_clock_manager.h"
mbed_official 146:f64d43ff0c18 20
mbed_official 146:f64d43ff0c18 21 const PinMap PinMap_RTC[] = {
mbed_official 146:f64d43ff0c18 22 {NC, OSC32KCLK, 0},
mbed_official 146:f64d43ff0c18 23 };
mbed_official 146:f64d43ff0c18 24
mbed_official 146:f64d43ff0c18 25 void rtc_init(void) {
mbed_official 146:f64d43ff0c18 26 rtc_hal_init_config_t hal_config = {0};
mbed_official 146:f64d43ff0c18 27
mbed_official 146:f64d43ff0c18 28 hal_config.disableClockOutToPeripheral = true;
mbed_official 146:f64d43ff0c18 29 if (PinMap_RTC[0].pin == NC) {
mbed_official 146:f64d43ff0c18 30 hal_config.enable32kOscillator = true;
mbed_official 146:f64d43ff0c18 31 }
mbed_official 146:f64d43ff0c18 32 clock_manager_set_gate(kClockModuleRTC, 0U, true);
mbed_official 146:f64d43ff0c18 33 hal_config.startSecondsCounterAt = 1; /* TSR = 1 */
mbed_official 146:f64d43ff0c18 34 rtc_hal_init(&hal_config);
mbed_official 146:f64d43ff0c18 35
mbed_official 146:f64d43ff0c18 36 // select RTC clock source
mbed_official 146:f64d43ff0c18 37 SIM->SOPT1 &= ~SIM_SOPT1_OSC32KSEL_MASK;
mbed_official 146:f64d43ff0c18 38 SIM->SOPT1 |= SIM_SOPT1_OSC32KSEL(PinMap_RTC[0].peripheral);
mbed_official 146:f64d43ff0c18 39
mbed_official 146:f64d43ff0c18 40 rtc_hal_config_oscillator(true);
mbed_official 146:f64d43ff0c18 41 rtc_hal_counter_enable(true);
mbed_official 146:f64d43ff0c18 42 }
mbed_official 146:f64d43ff0c18 43
mbed_official 146:f64d43ff0c18 44 void rtc_free(void) {
mbed_official 146:f64d43ff0c18 45 // [TODO]
mbed_official 146:f64d43ff0c18 46 }
mbed_official 146:f64d43ff0c18 47
mbed_official 146:f64d43ff0c18 48 /*
mbed_official 146:f64d43ff0c18 49 * Little check routine to see if the RTC has been enabled
mbed_official 146:f64d43ff0c18 50 * 0 = Disabled, 1 = Enabled
mbed_official 146:f64d43ff0c18 51 */
mbed_official 146:f64d43ff0c18 52 int rtc_isenabled(void) {
mbed_official 146:f64d43ff0c18 53 clock_manager_set_gate(kClockModuleRTC, 0U, true);
mbed_official 146:f64d43ff0c18 54 return (int)rtc_hal_is_counter_enabled();
mbed_official 146:f64d43ff0c18 55 }
mbed_official 146:f64d43ff0c18 56
mbed_official 146:f64d43ff0c18 57 time_t rtc_read(void) {
mbed_official 146:f64d43ff0c18 58 return BR_RTC_TSR_TSR;
mbed_official 146:f64d43ff0c18 59 }
mbed_official 146:f64d43ff0c18 60
mbed_official 146:f64d43ff0c18 61 void rtc_write(time_t t) {
mbed_official 146:f64d43ff0c18 62 if (t == 0) {
mbed_official 146:f64d43ff0c18 63 t = 1;
mbed_official 146:f64d43ff0c18 64 }
mbed_official 146:f64d43ff0c18 65 rtc_hal_counter_enable(false);
mbed_official 146:f64d43ff0c18 66 BW_RTC_TSR_TSR(t);
mbed_official 146:f64d43ff0c18 67 rtc_hal_counter_enable(true);
mbed_official 146:f64d43ff0c18 68 }