Greetings,
The IBF line is an acknowledgement output line that is controlled by the 8255 chip on your PCI-6025E board. There is no method readily available for changing the delay between the time the STB signal transitions and the IBF is set high in acknowledgement.
My only suggestion is to create a work-around. I assume you will be connecting the IBF line to an external device and a delay is needed. You could insert some other external hardware in the middle which has one digital input and one digital output. The device starts at output low and will output a logic high some time after it recognizes a transition from low to high on the input line. Connect the input to the IBF and output to your external device. You may not even need an external pie
ce of hardware to implement this. You could use the DIO lines and triggering available on your board.
Regards,
Justin Britten
Applications Engineer
National Instruments
