ECODE DTFUN::ConfigAD( UINT ChanType,
UINT ListSize,
DBL Gain,
int ClockSource,
DBL Freq,
DWORD BufSize )
{
int status;
ECODE result= 0;
BufferSize= (int)BufSize;
result+= SetChanType( ChanType );
result+= SetChanList( ListSize, Gain );
Freq= SetClock(ClockSource, Freq ); // ClockSource=0 ... internal, 1=external
result+= SetWndHandle();
result+= SetBuffers( BufSize );
ClockHz= Freq;
// do we want to output the sample clock onto the user counter pin?
// (this user counter pin can then be used as an A/D sample clock input for another board
// and is also used to drive this particular board
// NOTE that the user counter pin has to be wired externally to the A/D Sample Clock In pin
if (outputclockonusercounter)
{
// set the cascade mode
status= olDaSetCascadeMode(lphDassCT, OL_CT_SINGLE);
// set up the clocks and gates
// use an internal clock
status= olDaSetClockSource(lphDassCT, OL_CLK_INTERNAL);
// set the clock frequency
status= olDaSetClockFrequency(lphDassCT, ClockHz);
// specify the gate to enable the C/T operation
status= olDaSetGateType(lphDassCT, OL_GATE_NONE);
// status= olDaSetGateType(lphDassCT, OL_GATE_HIGH_LEVEL);
// specify the mode for continuous output
status= olDaSetCTMode(lphDassCT, OL_CTMODE_RATE); // as opposed to OL_CTMODE_ONESHOT
// specify the output pulse type
status= olDaSetPulseType(lphDassCT, OL_PLS_HIGH2LOW);
// specify the duty cycle or pulse width
status= olDaSetPulseWidth(lphDassCT, 100);
// configure the subsystem
status= olDaConfig( lphDassCT );
// if we use a self-generated clock, then pre-start the A/D conversion here
// start of sampling will be triggered when counter/clock is started
status= olDaStart( lphDass );
}
return( result );
}
DBL DTFUN::SetClock(int ClockSource, DBL Freq )
{
ECODE status;
if(ClockSource == 0)
{
status= olDaSetClockSource( lphDass, OL_CLK_INTERNAL );
}
else
{
status= olDaSetClockSource( lphDass, OL_CLK_EXTERNAL );
}
status= olDaSetClockFrequency( lphDass, Freq );
status= olDaConfig( lphDass );
status= olDaGetClockFrequency( lphDass, &Freq );
return( Freq );
}
void COctopusAOTF::Start( void )
{
olDaSetClockFrequency( hdass_9834, 0.25 * freq * outbuffersize );
olDmAllocBuffer( 0, outbuffersize, &hBuf_DAC );
if( hBuf_DAC == NULL )
{
AfxMessageBox(_T("Error Allocating buffer."));
return;
}
GenerateSignal();
olDaPutBuffer( hdass_9834, hBuf_DAC );
olDaConfig( hdass_9834 );
olDaStart( hdass_9834 );
B.AOTF_running = true;
m_status_AOTF.SetBitmap( m_bmp_yes );
}