= Analog Output (DAC Digital to Analog Conversion) Functions =

[[TOC(inline, noheading, depth=1, Docs/Prog/Manual/ApplicationLibraries/lib825ev/DAC/*)]]

== Example - Application manually setting DAC output voltage ==
{{{
const int nDAC = 1;  // First DAC card

// Application should call this when starting up to initialize the DAC output
void SetupDAC(void)
{
    // Setup DAC to not track gross or net weight but be controlled manually
   if(SetDACTrackScale(nDAC, 0, dacTrackGross, WAIT_ACK) != OK)
       printf("\n\nSetDACTrackScale error\r\n");

   DACOutputRange outputrange = dacOutput0to10V;
   if(SetDACReg(nDAC, dacAD5422Control, 0x3FF0 | (uint16)outputrange, WAIT_ACK) != OK)
       printf("\n\nSetDACOutputRange error\r\n");

   float fMaxOutput = 10.0; // Maximum output 10 volts
   if(SetDACFloat(nDAC, dacMaxOutput, fMaxOutput, WAIT_ACK) != OK)
       printf("\n\nSetDACFloat max output error\r\n");
}

// Application may call this any time change in voltage output is desired
void SetDACVoltage(float voltage)
{
   // The DAC output is controlled by a 16 bit register so we multiply the maximum 16-bit value 0xFFFF times output percentage/100 desired. 
   // For example maximum 10 V would be 0xFFFF * (10.0 / 10.0) = 0xFFFF * 1.0 = 0xFFFF, 5V would be 0xFFFF * (5.0 / 10.0) = 0xFFFF * 0.5 = 0x8000
     uint16 value = (uint16)(0xFFFF * (voltage / 10.0));
     SetDACReg(nDAC, dacAD5422Data, value, WAIT_ACK);
}

}}}