mbed os with nrf51 internal bandgap enabled to read battery level

Dependents:   BLE_file_test BLE_Blink ExternalEncoder

Revision:
0:f269e3021894
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/drivers/Serial.cpp	Sun Oct 23 15:10:02 2016 +0000
@@ -0,0 +1,49 @@
+/* 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 "drivers/Serial.h"
+#include "platform/wait_api.h"
+
+#if DEVICE_SERIAL
+
+namespace mbed {
+
+Serial::Serial(PinName tx, PinName rx, const char *name, int baud) : SerialBase(tx, rx, baud), Stream(name) {
+}
+
+Serial::Serial(PinName tx, PinName rx, int baud): SerialBase(tx, rx, baud), Stream(NULL) {
+}
+
+int Serial::_getc() {
+    // Mutex is already held
+    return _base_getc();
+}
+
+int Serial::_putc(int c) {
+    // Mutex is already held
+    return _base_putc(c);
+}
+
+void Serial::lock() {
+    _mutex.lock();
+}
+
+void Serial::unlock() {
+    _mutex.unlock();
+}
+
+} // namespace mbed
+
+#endif