main.cpp

00001 //--- Includes
00002 #include "mbed.h"
00003 
00004 //--- Defines
00005 #define     USB_UART        1
00006 #define     ON              1
00007 #define     OFF             0
00008 #define     BAUDRATE0       19200
00009 #define     BAUDRATE1       115200
00010 #define     K_BACKSPACE     8
00011 #define     K_RETURN        13
00012 
00013 //--- Objects
00014 DigitalOut  myled       (LED1);
00015 #if USB_UART
00016     Serial      myUART      ( USBTX, USBRX );      
00017 #else
00018     Serial      myUART      ( p13, p14 );   //--- TX    RX
00019 #endif
00020 Serial      loopUART    ( p28, p27 );   //--- TX    RX
00021 
00022 int main() {
00023     char    character;
00024         
00025     //--- init
00026     myled = ON;
00027     wait(0.2);
00028     myUART.baud( BAUDRATE1 );
00029     loopUART.baud( BAUDRATE1 );
00030     myled = OFF;
00031     
00032     while(1) {
00033         //--- Read myUART and print to loopUART
00034         if( myUART.readable() ) {
00035             character = myUART.getc();
00036             loopUART.printf( "%c", character );
00037         }
00038         
00039         //--- Read loopUART and print to myUART
00040         if( loopUART.readable() ) {
00041             character = loopUART.getc();
00042             
00043             //--- Return Key: new line on the console
00044             if( character == K_RETURN ) {
00045                 myUART.printf("\n\r");
00046             } else if( character == K_BACKSPACE ) {
00047                 myUART.printf("\b \b");
00048             } else {
00049                 myUART.printf( "%c", character );
00050             }
00051         }
00052         
00053         /*
00054             //--- Loopback the UART
00055             if( myUART.readable() ) {
00056                 myUART.putc( myUART.getc() );
00057             }
00058         */
00059         
00060         /*
00061             //--- Hello World on the UART
00062             myUART.printf( "Hello, world!\n\r" );
00063         */
00064     }
00065 }