CODEWITHSUNDEEP
serial-portembedded-linuxbaud-ratelibserial
Nimo shr
Nimo shr

Reputation: 23

Error setting buad rate on ubuntu by pl2303 conector and serialstream.h/libserial

I'm developing a serial communication application on Ubuntu. I'm using a pl2303 converter and libserial.

Myy issue is that I'm unable to set the baud rate. After executing the source code below I'm getting error state=2.

My source code is:

bool setUpCom()
{
    SerialStream my_serial_stream ;
    my_serial_stream.Open( "/dev/ttyUSB0" ) ;

    if ( ! my_serial_stream.good() )
    {
        printf("\nNo COM Port");
        return false;
    }

    my_serial_stream.SetBaudRate( SerialStreamBuf::BAUD_115200 );   
    my_serial_stream.SetCharSize( SerialStreamBuf::CHAR_SIZE_8 ) ;

   if ( ! my_serial_stream.good() )
   {  
       std::cerr << "Error setting serial port state=2" ;
       return false; 
   }

   my_serial_stream.SetNumOfStopBits(1) ;

   if ( ! my_serial_stream.good() )
   {
       std::cerr << "Error setting serial port state=3" ;
       return false;
   }

   my_serial_stream.SetParity( SerialStreamBuf::PARITY_NONE ) ;

   if ( ! my_serial_stream.good() )
   {
       std::cerr << "Error setting serial port state=4" ;
       return false;
   }

   my_serial_stream.SetBaudRate( SerialStreamBuf::BAUD_115200 );

   if ( ! my_serial_stream.good() )
   {
       std::cerr << "Error setting serial port state =5" ;
       return false;
   }
}

Upvotes: 2

Views: 606

Answers (1)

Ottavio Campana
Ottavio Campana

Reputation: 4188

Are you sure that invoking my_serial_stream.good() is good?

In http://libserial.sourceforge.net/doxygen/class_lib_serial_1_1_serial_stream.html it is not listed. There is a IsOpen() method instead.

Upvotes: 0

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