TDC-GPX acam messelectronic gmbh, TDC-GPX Datasheet - Page 28

• Manufacturer Part Number: TDC-GPX
• Description: Precision Time Interval Measurement
• Manufacturer: acam messelectronic gmbh

2.11 Measurement Flow
In the following we show two typical examples of register settings and measurement flow in I-Mode.
2.11.1 Single measurement
Task:
Measuring 8 channels within a window of 2 µs from Start.
//****** I-Mode, Stops against single Start **********
PuResN=Low;
PuResN=High;
StopDis1
StopDis2
StopDis3
StopDis4
_oupd( 0,0x007FC81);
_oupd( 1,0x0000000);
_oupd( 2,0x0000002);
_oupd( 3,0x0000000);
_oupd( 4,0x6000000);
_oupd( 5,0x0E004DA);
_oupd( 6,0x0000000);
_oupd( 7,0x0281FB4);
_oupd(11,0x7FF0000);
_oupd(12,0x2000000);
_oupd(14,0x0000000);
_oupd( 4,0x6400000);
StopDis1
StopDis2
StopDis3
StopDis4
do
{
} while(!quit)
while(IrFlag=Low);
while((EF1=Low)or(EF2=Low))
{
}
Alutrigger
Alutrigger
if
{
}
if
{
}
data = _inpd(8);
Chan = (data & 0xC000000)>>26 + 1;
Time = (data & 0x1FFFF);
Printf(Chan,time);
data = _inpd(9);
Chan = ((data & 0xC000000)>>26) + 5;
Time = (data & 0x1FFFF);
Printf(Chan,time);
(EF1=Low)
(EF2=Low)
acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de
= High;
= High;
= High;
= High;
= Low;
= Low;
= Low;
= Low;
= High;
= Low;
//StopDisStart, StartDisStart, StartOff1 = 100ns, MasterAluTrig
// Power-up reset
// Disable inputs
// write configuration registers:
// Rising edges, Start ringoscil.
// I-Mode
// Mtimes trig. by Start, EFlagHiZN
// Res = 82.3045ps
// Any error -> ErrFlag
// Mtimer -> IrFlag
// Master reset
// Enable inputs
28
// Check interrupt flag
// Check empty flag
// Data on IFIFO1?
// Read IFIFO1
// Get time Stop-Start
// Data on IFIFO2?
// Read IFIFO2
// Get channel#
// Get time Stop-Start
// Master reset
// Get channel#
TDC-GPX