Diff: mbed-dev/targets/TARGET_ONSEMI/TARGET_NCS36510/ncs36510_lp_ticker_api.c

Revision:

18:6a4db94011d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev/targets/TARGET_ONSEMI/TARGET_NCS36510/ncs36510_lp_ticker_api.c	Sun May 14 23:18:57 2017 +0000
@@ -0,0 +1,77 @@
+/**
+ *******************************************************************************
+ * @file    lpticker.c
+ * @brief Implementation of a Low Power Ticker functionality based on RTC
+ * @internal
+ * @author ON Semiconductor
+ * $Rev:  $
+ * $Date: $
+ ******************************************************************************
+ * Copyright 2016 Semiconductor Components Industries LLC (d/b/a “ON Semiconductor”).
+ * All rights reserved.  This software and/or documentation is licensed by ON Semiconductor
+ * under limited terms and conditions.  The terms and conditions pertaining to the software
+ * and/or documentation are available at http://www.onsemi.com/site/pdf/ONSEMI_T&C.pdf
+ * (“ON Semiconductor Standard Terms and Conditions of Sale, Section 8 Software”) and
+ * if applicable the software license agreement.  Do not use this software and/or
+ * documentation unless you have carefully read and you agree to the limited terms and
+ * conditions.  By using this software and/or documentation, you agree to the limited
+ * terms and conditions.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
+ * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * @endinternal
+ *
+ * @ingroup lpticker
+ *
+ * @details
+ * This is Low Power ticker derived from RTC
+ *
+ */
+
+#include "device.h"
+#if DEVICE_LOWPOWERTIMER
+
+#include "cmsis_nvic.h"
+#include "lp_ticker_api.h"
+#include "rtc.h"
+#include "rtc_map.h"
+
+/* Initialize the RTC for low power ticker */
+void lp_ticker_init()
+{
+    fRtcInit();
+}
+
+/* Return the current RTC counter value in us */
+uint32_t lp_ticker_read()
+{
+    return (uint32_t)(fRtcRead() & 0xFFFFFFFF); /* TODO Truncating 64 bit value to 32 bit */
+}
+
+/* Set interrupt for specified time */
+void lp_ticker_set_interrupt(timestamp_t timestamp)
+{
+    /* The RTC Match register needs to be Set to the RTC alarm value */
+    fRtcSetInterrupt(timestamp);
+}
+
+/** Disable low power ticker interrupt
+ *
+ */
+void lp_ticker_disable_interrupt(void)
+{
+    fRtcDisableInterrupt();
+}
+
+/** Clear the low power ticker interrupt
+ *
+ */
+void lp_ticker_clear_interrupt(void)
+{
+    fRtcClearInterrupt();
+}
+
+#endif /* DEVICE_LOWPOWERTIMER */