![background image](http://html1.mh-extra.com/html/keithley/dda-08/dda-08_user-manual_661637031.webp)
2-15
Interrupts
You can enable DDA-08/16 boards to automatically generate an interrupt
each time the analog output channels on the quad DACs in the update
group are updated. To enable interrupts, you specify an interrupt level (3,
5, 7, 10, 11, or 15) through software. On power-up, interrupts are
disabled.
DDA-08/16 boards use pulsed interrupts; this allows a DDA-08/16 board
to share an interrupt level with another DDA-08/16 board.
When an interrupt line is not being used to generate an interrupt, the
interrupt line remains in its normal state (tristated). When a board
requests an interrupt, the board momentarily pulses the interrupt line and
then sets a flag on the board. The software can cycle through the boards to
determine which boards need their interrupts serviced.
Note:
Sharing an interrupt level with a device other than another
DDA-08/16 board may cause a bus conflict.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com