Inherit from SoftSerial and use software buffers for TX and RX. This allows the SoftSerial to operate in a IRQ driven mode. Overrides most (but not all) stdio functions as SoftSerial did

Dependencies:   Buffer SoftSerial

Dependents:   2014_Ensoul_Capstone F103RB_tcp_rtu_modbus_copy_v1_0 SDP_Testing Nucleo_SFM ... more

Fork of BufferedSerial by Sam Grove

Todo: Write something here :)

Revision:
6:4e3e18b41ea6
Parent:
5:4d6a311fc8bf
Child:
7:58d0adeb95aa
--- a/BufferedSerial.h	Mon Mar 24 19:56:57 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,135 +0,0 @@
-
-/**
- * @file    BufferedSerial.h
- * @brief   Software Buffer - Extends mbed Serial functionallity adding irq driven TX and RX
- * @author  sam grove
- * @version 1.0
- * @see     
- *
- * Copyright (c) 2013
- *
- * 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 BUFFEREDSERIAL_H
-#define BUFFEREDSERIAL_H
- 
-#include "mbed.h"
-#include "Buffer.h"
-
-/** A serial port (UART) for communication with other serial devices
- *
- * Can be used for Full Duplex communication, or Simplex by specifying
- * one pin as NC (Not Connected)
- *
- * Example:
- * @code
- *  #include "mbed.h"
- *  #include "BufferedSerial.h"
- *
- *  BufferedSerial pc(USBTX, USBRX);
- *
- *  int main()
- *  { 
- *      while(1)
- *      {
- *          Timer s;
- *        
- *          s.start();
- *          pc.printf("Hello World - buffered\n");
- *          int buffered_time = s.read_us();
- *          wait(0.1f); // give time for the buffer to empty
- *        
- *          s.reset();
- *          printf("Hello World - blocking\n");
- *          int polled_time = s.read_us();
- *          s.stop();
- *          wait(0.1f); // give time for the buffer to empty
- *        
- *          pc.printf("printf buffered took %d us\n", buffered_time);
- *          pc.printf("printf blocking took %d us\n", polled_time);
- *          wait(0.5f);
- *      }
- *  }
- * @endcode
- */
-
-/**
- *  @class BufferedSerial
- *  @brief Software buffers and interrupt driven tx and rx for Serial
- */  
-class BufferedSerial : public Serial 
-{
-private:
-    Buffer <char> _rxbuf;
-    Buffer <char> _txbuf;
- 
-    void rxIrq(void);
-    void txIrq(void);
-    void prime(void);
-    
-public:
-    /** Create a BufferedSerial port, connected to the specified transmit and receive pins
-     *  @param tx Transmit pin
-     *  @param rx Receive pin
-     *  @note Either tx or rx may be specified as NC if unused
-     */
-    BufferedSerial(PinName tx, PinName rx, const char* name=NULL);
-    
-    /** Destroy a BufferedSerial port
-     */
-    virtual ~BufferedSerial(void);
-    
-    /** Check on how many bytes are in the rx buffer
-     *  @return 1 if something exists, 0 otherwise
-     */
-    virtual int readable(void);
-    
-    /** Check to see if the tx buffer has room
-     *  @return 1 always has room and can overwrite previous content if too small / slow
-     */
-    virtual int writeable(void);
-    
-    /** Get a single byte from the BufferedSerial Port.
-     *  Should check readable() before calling this.
-     *  @return A byte that came in on the Serial Port
-     */
-    virtual int getc(void);
-    
-    /** Write a single byte to the BufferedSerial Port.
-     *  @param c The byte to write to the Serial Port
-     *  @return The byte that was written to the Serial Port Buffer
-     */
-    virtual int putc(int c);
-    
-    /** Write a string to the BufferedSerial Port. Must be NULL terminated
-     *  @param s The string to write to the Serial Port
-     *  @return The number of bytes written to the Serial Port Buffer
-     */
-    virtual int puts(const char *s);
-    
-    /** Write a formatted string to the BufferedSerial Port.
-     *  @param format The string + format specifiers to write to the Serial Port
-     *  @return The number of bytes written to the Serial Port Buffer
-     */
-    virtual int printf(const char* format, ...);
-    
-    /** Write data to the Buffered Serial Port
-     *  @param s A pointer to data to send
-     *  @param length The amount of data being pointed to
-     *  @return The number of bytes written to the Serial Port Buffer
-     */
-    virtual ssize_t write(const void *s, std::size_t length);
-};
-
-#endif