Agilent Technologies DP111 Manual de usuario descargar pdf (Pagina 55)

Programmer’s Guide Page 55 of 64

In digitizers with trigger pattern capabilities, several trigger bits could be set simultaneously. However, no trigger

pattern capabilities between different modules can be coded, i.e. only a single module in a MultiInstrument can be the

trigger source, although the source in the single module might be a pattern. For these reasons, the module number

must be coded explicitly.

To translate a trigger channel number trigChan into a trigger source pattern, use the following code:

if (trigChan > 0) // Internal Trigger

{

long moduleNbr = (trigChan - 1) / nbrIntTrigsPerModule;

long inputNbr = (trigChan - 1) % nbrIntTrigsPerModule;

srcPattern = (moduleNbr<<16) + (0x1<<inputNbr);

}

else if (trigChan < 0) // External Trigger

{

trigChan = -trigChan;

long moduleNbr = (trigChan - 1) / nbrExtTrigsPerModule;

long inputNbr = (trigChan - 1) % nbrExtTrigsPerModule;

srcPattern = (moduleNbr<<16) + (0x80000000>>inputNbr);

}

else

PROBLEM!

Note that moduleNbr and inputNbr start from 0. An 'industrial strength' implementation should contain some

checks on the range of trigChan and/or inputNbr.

3.18. Special Operating Modes

Some Acqiris digitizers offer alternative operating modes, which are controlled with the function

AcqrsD1_configMode. The default state of any digitizer is mode = 0 and flags = 0, corresponding to the normal

digitizer operation, as described in the other sections of this manual. Please refer to the Programmers Reference for

details on this function.

The available modes are model and option dependent; please refer to the specific model data sheet or user manual for

more information. The table below gives a summary of all modes, and the following sub-sections provide details on

these modes.

Mode

Index

Name Description Available on models

Normal

Normal (digitizer) acquisition mode.

All

Stream data

Stream data to the DPU.

SC2x0, AC2x0 Data Streamers only.

Averager

Averaging mode.

AP235, AP240, AP100, AP200, U1084A only.

Dual memory

Dual memory mode.

AP101, AP201 only.

5 Peak TDC Peak detection and Time-to-Digital

Conversion and Analysis mode.

Peak TDC Analysers (AP240, U1084A) only.

Frequency Counter

Frequency counter mode.

DC135, DC140 only.

SSR

Sustained Sequential Recording mode

AP235/240, or U1084A-DGS only.

DDC

Digital Down-Converter mode.

M9202A with –DDC option only.

Custom firmware

(Please contact Agilent Sales for further information)

Note: After switching between modes it is recommended to perform an internal calibration to ensure that the

instrument is performing within specification.

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 63 64

Comentarios a estos manuales

Sin comentarios

Agilent Technologies DP111 Manual de usuario Pagina 55

Comentarios a estos manuales

Relacionado con productos y manuales para No Agilent Technologies DP111