mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

Revision:
189:f392fc9709a3
Parent:
187:0387e8f68319
--- a/drivers/Ticker.cpp	Thu Nov 08 11:46:34 2018 +0000
+++ b/drivers/Ticker.cpp	Wed Feb 20 22:31:08 2019 +0000
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2006-2013 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -52,4 +53,16 @@
     }
 }
 
+void Ticker::attach_us(Callback<void()> func, us_timestamp_t t)
+{
+    core_util_critical_section_enter();
+    // lock only for the initial callback setup and this is not low power ticker
+    if (!_function && _lock_deepsleep) {
+        sleep_manager_lock_deep_sleep();
+    }
+    _function = func;
+    setup(t);
+    core_util_critical_section_exit();
+}
+
 } // namespace mbed