#include <DPtest_1825.h>

//Variables
int RES;

void dig_pot(RES){
   output_low(PIN_C3);     //CS digital potentiometer
   spi_write(0x11);        //Device 0 selected
   spi_write(RES); 
   output_high(PIN_C3);
}      

void main(){
   setup_spi(SPI_MASTER|SPI_XMIT_L_TO_H|SPI_CLK_DIV_4);  //SPI mode (0,0)
   
   while(TRUE){
      for(RES=0;RES<=255;++RES)
      dig_pot(RES);
   }
}