SerialBuffered.h

00001 #ifndef _SERIAL_BUFFERED_H_
00002 #define _SERIAL_BUFFERED_H_
00003 
00004 #include "mbed.h"
00005 
00006 /**
00007  * Buffered serial class.
00008  */
00009 class SerialBuffered : public Serial
00010 {
00011     public:
00012         /**
00013          * Create a buffered serial class.
00014          *
00015          * @param tx A pin for transmit.
00016          * @param rx A pin for receive.
00017          */
00018         SerialBuffered(PinName tx, PinName rx);
00019 
00020         /**
00021          * Destroy.
00022          */
00023         virtual ~SerialBuffered();
00024 
00025         /**
00026          * Get a character.
00027          *
00028          * @return A character. (-1:timeout)
00029          */
00030         int getc();
00031 
00032         /**
00033          * Returns 1 if there is a character available to read, otherwise.
00034          */
00035         int readable();
00036 
00037         /**
00038          * Set timeout for getc().
00039          *
00040          * @param ms milliseconds. (-1:Disable timeout)
00041          */
00042         void setTimeout(int ms);
00043 
00044         /**
00045          * Read requested bytes.
00046          *
00047          * @param bytes A pointer to a buffer.
00048          * @param requested Length.
00049          *
00050          * @return Readed byte length.
00051          */
00052         size_t readBytes(uint8_t *bytes, size_t requested);
00053         
00054         float f_readIntTo(char delimiter);
00055         int i_readIntTo(char delimiter);
00056         void writeText(char* text);
00057 
00058     private:
00059         void handleInterrupt();
00060         
00061         static const int BUFFERSIZE = 2048;
00062         static const int BUFFER_TEXT_SIZE = 255;
00063         
00064         uint8_t buffer[BUFFERSIZE];            // points at a circular buffer, containing data from m_contentStart, for m_contentSize bytes, wrapping when you get to the end
00065         uint16_t indexContentStart;   // index of first bytes of content
00066         uint16_t indexContentEnd;     // index of bytes after last byte of content
00067         int timeout;
00068         Timer timer;
00069 };
00070 
00071 #endif