Data Translation DT9835, Руководство пользователя

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Programming Flowcharts
31
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Continuous Digital Input Operations
Get a handle to the DIN subsystem with
olDaGetDASS.
Initialize the device driver and get the
device handle with olDaInitialize.
Set the data flow to
OL_DF_CONTINUOUS using
olDaSetDataFlow.
Set the resolution with
olDaSetResolution.
Set the resolution to 8 or 16. See page 12 for
more information.
Go to the next page.
Set the trigger source to
OL_TRG_SOFT using olDaSetTrigger.
olDaSetNotificationProcedure
Specify the procedure to handle Windows
messages.
Using main
window to
handle
messages?
Yes
No
olDaSetWndHandle
Specify the window in
which to post messages.
Only banks 10 and 11 support continuous digital
input operations.
If you want to read banks 10 and 11 at the same
time, specify DIN element 10 and a resolution of
16. If you want to read bank 10 only, specify DIN
element 10 and a resolution of 8. If you want to
read bank 11 only, specify DIN element 11 and a
resolution of 8.