User`s guide

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Sample Programs

7.3.4 Trigger Mode Data I/O through DMA Data Transfer or

Interrupt operation

This kind of programs is used to demonstrate how to use PCIS-DASK to

operate Trigger Mode data I/O through DMA data transfer or Interrupt

operation. Except an additional input item, postCount, the running steps and

the main screen of this kind of programs (Figure 7.6) are almost the same as

those mentioned in section 7.3.2 (For Single-Buffer Mode) or section 7.3.3 (For

Double-Buffer Mode). Please refer to these two sections for the details. This

additional item, postCount , represents the number of data accessed after a

specific trigger event or the counter value for deferring to access data after a

specific trigger event. Please refer to the description of AI configuration

functions (AI_9111_Config, AI_9118_Config, AI_9812_Config) for the details.

Figure 7.6

Note: Except VB9812, all the trigger mode data acquisition sample

programs use external digital trigger source to provide trigger

signal. Please refer to the user’s manuals of these cards you want

to operate for the detailed description of trigger mode data

acquisition.