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ebda795f34
Remove and rewrite all the parts of the core/libraries using TIMER1 and consolidate into a single, shared waveform generation interrupt structure. Tone, analogWrite(), Servo all now just call into this shared resource to perform their tasks so are all compatible and can be used simultaneously. This setup enables multiple tones, analogWrites, servos, and stepper motors to be controlled with reasonable accuracy. It uses both TIMER1 and the internal ESP cycle counter to handle timing of waveform edges. TIMER1 is used in non-reload mode and only edges cause interrupts. The interrupt is started and stopped as required, minimizing overhead when these features are not being used. A generic "startWaveform(pin, high-US, low-US, runtime-US)" and "stopWaveform(pin)" allow for further types of interfaces. Minimum high or low period is ~1 us. Add a tone(float) method, useful when working with lower frequencies. Fixes #4321. Fixes 4349.
40 lines
1.4 KiB
C++
40 lines
1.4 KiB
C++
/**
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* base64.h
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*
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* Created on: 09.12.2015
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*
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* Copyright (c) 2015 Markus Sattler. All rights reserved.
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* This file is part of the ESP8266 core for Arduino.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef CORE_BASE64_H_
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#define CORE_BASE64_H_
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class base64 {
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public:
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// NOTE: The default behaviour of backend (lib64)
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// is to add a newline every 72 (encoded) characters output.
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// This may 'break' longer uris and json variables
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static String encode(uint8_t * data, size_t length, bool doNewLines = true);
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static String encode(String text, bool doNewLines = true);
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private:
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};
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#endif /* CORE_BASE64_H_ */
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