klassents
766b7b32ea
- обновлен elbear_fw_bootloader - добавлена проверка контрольной суммы каждой строки hex файла. - в модуль работы с АЦП добавлена функция analogReadResolution(). Функция analogRead() теперь возвращает усредненное по 10 измерениям значение. - общая функция обработки прерываний перенесена в память RAM. Обработчики прерываний модулей External Interrupts и Advanced I/O (функция tone()) так же перенесены в память RAM для увеличения скорости выполнения кода. - в пакет добавлены библиотеки EEPROM, Servo, SoftSerial, NeoPixel, MFRC522 адаптированные для работы с платой Elbear Ace-Uno. - добавлено описание особенностей работы с пакетом
110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
/*
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SoftwareSerial.h
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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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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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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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The latest version of this library can always be found at
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http://arduiniana.org.
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*/
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#ifndef SoftwareSerial_h
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#define SoftwareSerial_h
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#include <inttypes.h>
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#include <Stream.h>
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/******************************************************************************
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* Definitions
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******************************************************************************/
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#ifndef _SS_MAX_RX_BUFF
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#define _SS_MAX_RX_BUFF 64 // RX buffer size
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#endif
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#ifndef GCC_VERSION
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#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
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#endif
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class SoftwareSerial : public Stream
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{
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private:
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// per object data
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uint8_t _receivePin;
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uint16_t _receiveBitMask;
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uint32_t _receivePortRegister;
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uint8_t _transmitPin;
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uint16_t _transmitBitMask;
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uint32_t _transmitPortRegister;
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uint8_t _int_maskLine;
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// must never be 0!
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uint32_t _rx_delay_centering;
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uint32_t _rx_delay_intrabit;
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uint32_t _rx_delay_stopbit;
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uint32_t _tx_delay;
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uint16_t _buffer_overflow:1;
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uint16_t _inverse_logic:1;
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// static data
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static uint8_t _receive_buffer[_SS_MAX_RX_BUFF];
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static volatile uint8_t _receive_buffer_tail;
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static volatile uint8_t _receive_buffer_head;
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static SoftwareSerial *active_object;
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// private methods
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void recv() __attribute__((noinline, section(".ram_text")));
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uint8_t rx_pin_read();
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void setTX(uint8_t transmitPin);
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void setRX(uint8_t receivePin);
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inline void setRxIntMsk(bool enable) __attribute__((__always_inline__));
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// Return num - sub, or 1 if the result would be < 1
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static uint32_t subtract_cap(uint32_t num, uint16_t sub);
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// private static method for timing
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static void tunedDelay(uint32_t delayTicks) __attribute__((noinline, section(".ram_text")));
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public:
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// public methods
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SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic = false);
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~SoftwareSerial();
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void begin(long speed);
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bool listen();
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void end();
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bool isListening() { return this == active_object; }
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bool stopListening();
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bool overflow()
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{
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bool ret = _buffer_overflow;
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if (ret)
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_buffer_overflow = false;
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return ret;
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}
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int peek();
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virtual size_t write(uint8_t byte) __attribute__((noinline, section(".ram_text")));
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virtual int read();
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virtual int available();
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virtual void flush();
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operator bool() { return true; }
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using Print::write;
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// public only for easy access by interrupt handlers
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static void handle_interrupt() __attribute__((noinline, section(".ram_text")));
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};
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#endif
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