File content as of revision 1:89479d6c8b09:

#include "mbed.h"
#include "TextLCD.h"
#include "EthernetNetIf.h"
#include "HTTPServer.h"
#include "RPCFunction.h"  //ADD Here!!

DigitalOut led1(LED1,"led1");
DigitalOut led2(LED2,"led2");
DigitalOut led3(LED3,"led3");
DigitalOut led4(LED4,"led4");
TextLCD lcd(p24, p26, p27, p28, p29, p30);

    EthernetNetIf ethif;
    HTTPServer server;
    LocalFileSystem local("local");
    void LcdWrite(char *input,char *output);    //ADD Here!!
    RPCFunction rpcFunc(&LcdWrite, "LcdWrite"); //ADD Here!!

/////////////////////////////////////////////////////
//      main
/////////////////////////////////////////////////////
int main(void) {
    Base::add_rpc_class<DigitalOut>();
    lcd.cls();
    lcd.locate(0,0);
    lcd.printf("Program init..  ");

    if (ethif.setup()) {
        error("Ethernet setup failed.");
        return 1;
    }

    IpAddr ethIp=ethif.getIp();
    lcd.locate(0,1);
    lcd.printf("%d.%d.%d.%d", ethIp[0], ethIp[1], ethIp[2], ethIp[3]);
    led1=1;
    wait(1);

    server.addHandler<SimpleHandler>("/hello");
    server.addHandler<RPCHandler>("/rpc");
    FSHandler::mount("/local", "/");
    server.addHandler<FSHandler>("/");
    server.bind(80);

    while (1) {
        Net::poll();
    }
    return 0;
}

/////////////////////////////////////////////////////
//      LCD
/////////////////////////////////////////////////////
void LcdWrite(char *input , char *output) {
    lcd.cls();
    lcd.locate(0,0);
    lcd.printf("%s",input);
}