mirror of https://github.com/ARMmbed/mbed-os.git
108 lines
2.6 KiB
C++
108 lines
2.6 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_RAW_SERIAL_H
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#define MBED_RAW_SERIAL_H
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#include "platform/platform.h"
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#if DEVICE_SERIAL
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#include "drivers/SerialBase.h"
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#include "hal/serial_api.h"
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namespace mbed {
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/** \addtogroup drivers */
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/** @{*/
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/** A serial port (UART) for communication with other serial devices
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* This is a variation of the Serial class that doesn't use streams,
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* thus making it safe to use in interrupt handlers with the RTOS.
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*
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* Can be used for Full Duplex communication, or Simplex by specifying
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* one pin as NC (Not Connected)
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*
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* @Note Synchronization level: Not protected
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*
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* Example:
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* @code
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* // Send a char to the PC
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*
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* #include "mbed.h"
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*
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* RawSerial pc(USBTX, USBRX);
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*
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* int main() {
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* pc.putc('A');
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* }
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* @endcode
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*/
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class RawSerial: public SerialBase {
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public:
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/** Create a RawSerial port, connected to the specified transmit and receive pins, with the specified baud.
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*
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* @param tx Transmit pin
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* @param rx Receive pin
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* @param baud The baud rate of the serial port (optional, defaults to MBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE)
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*
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* @note
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* Either tx or rx may be specified as NC if unused
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*/
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RawSerial(PinName tx, PinName rx, int baud = MBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE);
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/** Write a char to the serial port
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*
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* @param c The char to write
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*
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* @returns The written char or -1 if an error occured
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*/
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int putc(int c);
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/** Read a char from the serial port
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*
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* @returns The char read from the serial port
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*/
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int getc();
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/** Write a string to the serial port
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*
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* @param str The string to write
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*
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* @returns 0 if the write succeeds, EOF for error
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*/
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int puts(const char *str);
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int printf(const char *format, ...);
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protected:
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/** Acquire exclusive access to this serial port
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*/
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virtual void lock(void);
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/** Release exclusive access to this serial port
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*/
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virtual void unlock(void);
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};
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} // namespace mbed
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#endif
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#endif
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/** @}*/
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