User`s guide

PCIS-DASK Application Hints

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5.3.2 Synchronous Continuous Digital input programming

Scheme

This section described the function flow typical of synchronous digital input

operation. While performing continuous DI operation, the DI configuration

function has to be called at the beginning of your application. In addition, for

synchronous DI, the SyncMode argument in continuous DI functions has to be

set as SYNCH_OP.

DI_xxxx_Config

(xxxx means the card type,

e.g. DI_7200_Config)

DI_ContReadPort /

DI_ContReadPort ToFile

With SyncMode=SYNCH_OP

[Example Code Fragment]

card = Register_Card(PCI_7200, card_number);

…

DI_7200_Config(card,TRIG_INT_PACER, DI_NOWAITING,

DI_TRIG_FALLING, IREQ_FALLING);

DI_AsyncDblBufferMode (card, 0); //non-double-buffered mode

DI_ContReadPort(card, 0, pMem, data_size, (F64)sample_rate,

SYNCH_OP)

…

Release_Card(card);