Diff: targets/hal/TARGET_Freescale/TARGET_K20D5M/rtc_api.c

Revision:

255:20b371a9491b

Parent:

254:181b5e179739

Child:

256:76fd9a263045

--- a/targets/hal/TARGET_Freescale/TARGET_K20D5M/rtc_api.c	Thu Jul 10 09:00:09 2014 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,85 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include "rtc_api.h"
-
-static void init(void) {
-    // enable PORTC clock
-    SIM->SCGC5 |= SIM_SCGC5_PORTC_MASK;
-
-    // enable RTC clock
-    SIM->SCGC6 |= SIM_SCGC6_RTC_MASK;
-
-    // OSC32 as source
-    SIM->SOPT1 &= ~SIM_SOPT1_OSC32KSEL_MASK;
-    SIM->SOPT1 |= SIM_SOPT1_OSC32KSEL(0);
-}
-
-void rtc_init(void) {
-    init();
-
-    // Enable the oscillator
-    RTC->CR |= RTC_CR_OSCE_MASK;
-
-    //Configure the TSR. default value: 1
-    RTC->TSR = 1;
-
-    // enable counter
-    RTC->SR |= RTC_SR_TCE_MASK;
-}
-
-void rtc_free(void) {
-    // [TODO]
-}
-
-/*
- * Little check routine to see if the RTC has been enabled
- * 0 = Disabled, 1 = Enabled
- */
-int rtc_isenabled(void) {
-    // even if the RTC module is enabled,
-    // as we use RTC_CLKIN and an external clock,
-    // we need to reconfigure the pins. That is why we
-    // call init() if the rtc is enabled
-
-    // if RTC not enabled return 0
-    SIM->SCGC5 |= SIM_SCGC5_PORTC_MASK;
-    SIM->SCGC6 |= SIM_SCGC6_RTC_MASK;
-    if ((RTC->SR & RTC_SR_TCE_MASK) == 0)
-        return 0;
-
-    init();
-    return 1;
-}
-
-time_t rtc_read(void) {
-    return RTC->TSR;
-}
-
-void rtc_write(time_t t) {
-    // disable counter
-    RTC->SR &= ~RTC_SR_TCE_MASK;
-
-    // we do not write 0 into TSR
-    // to avoid invalid time
-    if (t == 0)
-        t = 1;
-
-    // write seconds
-    RTC->TSR = t;
-
-    // re-enable counter
-    RTC->SR |= RTC_SR_TCE_MASK;
-}