Diff: rtc_api.c

Revision:

0:e4d670b91a9a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtc_api.c	Wed Mar 23 21:26:50 2016 +0000
@@ -0,0 +1,60 @@
+/* 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"
+
+#if DEVICE_RTC
+
+#include "pinmap.h"
+#include "fsl_rtc_hal.h"
+#include "fsl_clock_manager.h"
+#include "PeripheralPins.h"
+
+void rtc_init(void) {
+    SIM_HAL_EnableRtcClock(SIM_BASE, 0U);
+
+    RTC_HAL_Init(RTC_BASE);
+    RTC_HAL_Enable(RTC_BASE);
+
+    RTC_HAL_EnableCounter(RTC_BASE, true);
+}
+
+void rtc_free(void) {
+    // [TODO]
+}
+
+/*
+ * Little check routine to see if the RTC has been enabled
+ * 0 = Disabled, 1 = Enabled
+ */
+int rtc_isenabled(void) {
+    SIM_HAL_EnableRtcClock(SIM_BASE, 0U);
+    return (int)RTC_HAL_IsCounterEnabled(RTC_BASE);
+}
+
+time_t rtc_read(void) {
+    return (time_t)RTC_HAL_GetSecsReg(RTC_BASE);
+}
+
+void rtc_write(time_t t) {
+    if (t == 0) {
+        t = 1;
+    }
+    RTC_HAL_EnableCounter(RTC_BASE, false);
+    RTC_HAL_SetSecsReg(RTC_BASE, t);
+    RTC_HAL_EnableCounter(RTC_BASE, true);
+}
+
+#endif