support library for C027 helper functions for Buffer Pipes, Buffered Serial Port (rtos capable) and GPS parsing. It includes modem APIs for USSD, SMS and Sockets.

Dependents:   HTTPClient_Cellular_HelloWorld Cellular_HelloMQTT MbedSmartRestMain Car_Bon_car_module ... more

This library is intended to be used with u-blox products such as the C027 or a shield with u-blox cellular and GPS modules like the cellular and positioning shield from Embedded Artist.

For 2G/GSM and 3G/UMTS you need to:

  • have a SIM card and know its PIN number
  • need to know you network operators APN setting These setting should be passed to the connect or init and join functions. You can also extend the APN database in MDMAPN.h.

For CDMA products you need to make sure that you have provisioned and activated the modem with either Sprint or Verizon.

SerialPipe.h

Committer:
mazgch
Date:
22 months ago
Revision:
139:fd9fe498f142
Parent:
93:2b5478693c20

File content as of revision 139:fd9fe498f142:

#pragma once 

#include "mbed.h"
#include "Pipe.h"

#define _SerialPipeBase SerialBase //!< base class used by this class

/** Buffered serial interface (rtos capable/interrupt driven)
*/
class SerialPipe : public _SerialPipeBase
{
public:
    /** Constructor
        \param tx the trasmitting pin
        \param rx the receiving pin
        \param baud the initial baudrate 
        \param rxSize the size of the receiving buffer
        \param txSize the size of the transmitting buffer
    */
    SerialPipe(PinName tx, PinName rx, int baudrate, int rxSize = 128, int txSize = 128);
    
    /** Destructor
    */
    virtual ~SerialPipe(void);
    
    // tx channel
    //----------------------------------------------------
    
    /** check if writable 
        return the number of free bytes
    */
    int writeable(void);
    
    /** send a character (blocking)
        \param c the character to send
        \return c
    */
    int putc(int c);
    
    /** send a buffer
        \param buffer the buffer to send
        \param length the size of the buffer to send
        \param blocking, if true this function will block 
               until all bytes placed in the buffer. 
        \return the number of bytes written 
    */
    int put(const void* buffer, int length, bool blocking);
    
    // rx channel
    //----------------------------------------------------
    
    /** check if readable
        \return the size available in the buffer.
    */
    int readable(void);
    
    /** receive one character from the serial port (blocking)
        \param the character received 
    */
    int getc(void);
    
    /** read a buffer from the serial port
        \param pointer to the buffer to read.
        \param length number of bytes to read 
        \param blocking true if all bytes shall be read. false if only the available bytes.
        \return the number of bytes read.
    */
    int get(void* buffer, int length, bool blocking);
    
protected:
    //! receive interrupt routine
    void rxIrqBuf(void);
    //! transmit interrupt woutine 
    void txIrqBuf(void);
    //! start transmission helper
    void txStart(void);
    //! move bytes to hardware
    void txCopy(void);
    Pipe<char> _pipeRx; //!< receive pipe
    Pipe<char> _pipeTx; //!< transmit pipe
};