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Diff: mbed/drivers/AnalogOut.h
- Revision:
- 12:406f75196a12
- Parent:
- 11:32eeb052cda5
- Child:
- 13:0c732e06d675
diff -r 32eeb052cda5 -r 406f75196a12 mbed/drivers/AnalogOut.h
--- a/mbed/drivers/AnalogOut.h Wed Aug 26 14:26:27 2020 +0530
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,165 +0,0 @@
-/* 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.
- * 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.
- */
-#ifndef MBED_ANALOGOUT_H
-#define MBED_ANALOGOUT_H
-
-#include "platform/platform.h"
-
-#if DEVICE_ANALOGOUT || defined(DOXYGEN_ONLY)
-
-#include "hal/analogout_api.h"
-#include "platform/PlatformMutex.h"
-
-namespace mbed {
-/** \addtogroup drivers */
-
-/** An analog output, used for setting the voltage on a pin
- *
- * @note Synchronization level: Thread safe
- *
- * Example:
- * @code
- * // Make a sawtooth output
- *
- * #include "mbed.h"
- *
- * AnalogOut tri(p18);
- * int main() {
- * while(1) {
- * tri = tri + 0.01;
- * wait_us(1);
- * if(tri == 1) {
- * tri = 0;
- * }
- * }
- * }
- * @endcode
- * @ingroup drivers
- */
-class AnalogOut {
-
-public:
-
- /** Create an AnalogOut connected to the specified pin
- *
- * @param pin AnalogOut pin to connect to
- */
- AnalogOut(PinName pin)
- {
- analogout_init(&_dac, pin);
- }
-
- /** Set the output voltage, specified as a percentage (float)
- *
- * @param value A floating-point value representing the output voltage,
- * specified as a percentage. The value should lie between
- * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
- * Values outside this range will be saturated to 0.0f or 1.0f.
- */
- void write(float value)
- {
- lock();
- analogout_write(&_dac, value);
- unlock();
- }
-
- /** Set the output voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
- *
- * @param value 16-bit unsigned short representing the output voltage,
- * normalized to a 16-bit value (0x0000 = 0v, 0xFFFF = 3.3v)
- */
- void write_u16(unsigned short value)
- {
- lock();
- analogout_write_u16(&_dac, value);
- unlock();
- }
-
- /** Return the current output voltage setting, measured as a percentage (float)
- *
- * @returns
- * A floating-point value representing the current voltage being output on the pin,
- * measured as a percentage. The returned value will lie between
- * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
- *
- * @note
- * This value may not match exactly the value set by a previous write().
- */
- float read()
- {
- lock();
- float ret = analogout_read(&_dac);
- unlock();
- return ret;
- }
-
- /** An operator shorthand for write()
- * \sa AnalogOut::write()
- */
- AnalogOut &operator= (float percent)
- {
- // Underlying write call is thread safe
- write(percent);
- return *this;
- }
-
- /** An operator shorthand for write()
- * \sa AnalogOut::write()
- */
- AnalogOut &operator= (AnalogOut &rhs)
- {
- // Underlying write call is thread safe
- write(rhs.read());
- return *this;
- }
-
- /** An operator shorthand for read()
- * \sa AnalogOut::read()
- */
- operator float()
- {
- // Underlying read call is thread safe
- return read();
- }
-
- virtual ~AnalogOut()
- {
- // Do nothing
- }
-
-protected:
-#if !defined(DOXYGEN_ONLY)
- virtual void lock()
- {
- _mutex.lock();
- }
-
- virtual void unlock()
- {
- _mutex.unlock();
- }
-
- dac_t _dac;
- PlatformMutex _mutex;
-#endif //!defined(DOXYGEN_ONLY)
-};
-
-} // namespace mbed
-
-#endif
-
-#endif