File content as of revision 1:d175631a5803:

/** example program for the use of the MCP4728 class and DACInterface.h classes
 *
 *  V 1.0  : tested on the KL05z  but without the MCP4728 connected \
 * (C) Wim Beaumont Universiteit Antwerpen 2016 
 */ 

#define MCP4728EXAMPLEVER "1.10                    "

#include "mbed.h"

#if   defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
  PinName const SDA = PTE25;
  PinName const SCL = PTE24;
#elif defined (TARGET_KL05Z)
  PinName const SDA = PTB4;
  PinName const SCL = PTB3;
#elif defined (TARGET_K20D50M)
  PinName const SDA = PTB1;
  PinName const SCL = PTB0;
#else
  #error TARGET NOT DEFINED
#endif


#include "I2C.h"
#include "I2CInterface.h" 
#include "MBEDI2CInterface.h" 
#include "DACInterface.h" 
#include "dev_interface_def.h"
#include "mcp4728.h"

MBEDI2CInterface mbedi2c( SDA, SCL); 
MBEDI2CInterface* mbedi2cp=  &mbedi2c ;
I2CInterface* i2cdev= mbedi2cp;
const float Vdd=5.0;

Serial pc(USBTX, USBRX);

int main(void) {
  
   // get the version of getVersion 
   getVersion gv;
   printf("MCP4728 example program version %s, compile date %s time %s\n\r",MCP4728EXAMPLEVER,__DATE__,__TIME__);
   printf("getVersion :%s\n\r",gv.getversioninfo());
   
   MCP4728  dac( i2cdev ,0, Vdd);  // assuming the address  of the MCP4728 is set to 0 factory default 
   printf("MCP4728 :%s\n\r",dac.getversioninfo());
   wait(4);
   float voltage=0;
   int cnt=0;
   while(cnt < 4096){
           // first set the 4 channels 
           for ( int cc =0 ; cc <4 ; cc++) { 
               if ( dac.setDACvalue(cnt,cc) )
                   printf("failed to set dac value %d for channel %d\n\r",cnt,cc);
            }
            printf("set DAC value  to %d result in",cnt);
               // no else read anyway even if set fails 
            if(dac.update()) printf("\n\rfailed to readback channel info \n\r");
            else {
                for ( int cc =0 ; cc <4 ; cc++) { 
                 (void)dac.getVoltage(voltage,cc);//no need to test done with updat 
                  printf(" CH%d %f[V]",cc,voltage);
                }
                printf("\n\r");
            }
             cnt++;
             cnt=cnt % 4096;     
             wait_ms(200);

  }
  // now the same with the DAC interface 
  DACInterface* di = &dac;
  cnt=0;
  while(1){
           // first set the 4 channels 
           for ( int cc =0 ; cc <4 ; cc++) { 
               if ( di->setDACvalue(cnt,cc) )
                   printf("failed to set dac value %d for channel %d\n\r",cnt,cc);
            }
            printf("set DAC value  to %d result in",cnt);
               // no else read anyway even if set fails 
            if(di->update()) printf("\n\rfailed to readback channel info \n\r");
            else {
                for ( int cc =0 ; cc <4 ; cc++) { 
                 (void)di->getVoltage(voltage,cc);// no need to test done with update
                  printf(" CH%d %f[V]",cc,voltage);
                }
                printf("\n\r");
            }
            
             cnt++;
             cnt=cnt % 4096;     
             wait_ms(200);

  }
  
    
    // never reach this   
    return 1;
}