File content as of revision 0:d83a90125711:

#include "mbed.h"
#include "SC16IS750.h"

//SPI Version
SPI spi(PTD2, PTD3, PTD1); //MOSI, MISO, SCK
//DigitalOut CS(PTD0);       //CS 
SC16IS750_SPI serial_spi(&spi, PTD0);

//I2C Version
I2C i2c(PTE0, PTE1);       //SDA, SCL
SC16IS750_I2C serial_i2c(&i2c, DEFAULT_SC16IS750_ADDR);

DigitalOut myled1(LED_RED);
DigitalOut myled2(LED_GREEN);
//DigitalOut myled3(LED_BLUE);  //same as PTD1 (SCK)
 
Serial pc(USBTX,USBRX);

int main() {
  pc.printf("\nHello World!\n");
     
  myled1 = 1; // LED Off
//  CS = 1;
 
  spi.format(8, 0);          
//    spi.frequency(100000);    
//    spi.frequency(500000);    
  spi.frequency(1000000);
//    spi.frequency(1500000);    
        
  while(1) {
//    serial_spi.writeRegister(SC16IS750::IODIR, 0x81);  // direct call to new method
    
    serial_spi.ioSetState(0x00);    // indirect call to new method
//    wait(0.5);
    pc.putc('*');                
  }


#if(0)
  while(1) {
    CS=0;
    spi.write(0xAA);
    spi.write(0x81);
    CS=1;        
    wait_us(5);      
  }
#endif
    
  pc.printf("\nBye World!\n");    
}